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MONITOR HEATING SYSTEMSService Manual

MONITOR 22 MONITOR 41

The information contained herein is proprietary to Monitor Products, Inc. shall not be disclosed, duplicated, norotherwise copied in whole or part for any other purpose without express written permission of the LegalDepartment of Monitor Products, Inc. This data is issued to authorized Monitor Servicing Personnel for guidancein the installation and maintenance of the subject product and is intended for use by authorized Monitor servicepersonnel only. Further. Monitor Products, Inc. reserves the right to make improvements and corrections and toalter apecifications of products described herein, at any time without prior notice.

P.O.BOX3408PRINCETON, NEW JERSEY 08543

MONITOR HEATING SYSTEMSTable of Contents

Section 1: Description Page 1-71-1 Introduction; 1-2 Physical Specifications; 1-3 Functional Descrip-tion; 1-4 Description; 1-5 Spill Tray; 1-6 Heater Cabinet; 1-7 Combus-tion System; 1-8 Combustion Ghamber; 1-9 Burner Pot; 1-10 Combus-tion Ring Assembly; 1-11 Burner Cap; 1-12 FlameSensor; 1-13 Igniter;1-14 Combustion Air System; 1-15 Flue Pipe; 1-16 Combustion Blower;1-17 Heat Exchanger; 1-18 Air Circulation Fan; 1-19 Air PressureSwitch; 1-20 Fuel Delivery System; 1-21 External Fuel Tank; 1-22Fusible Link Valve; 1-23 Fuel Constant Level Valve; 1-24 SolenoidPump; 1-25 Electrical System; 1-26 Microprocessor; 1-27 Tempera-ture Sensor; 1-28 Safety Mechanism; 1-29 Cloth Covered ExhaustPipe; 1-30 Air Circulation Fan Guard; 1-31 Fuse; 1-32 OverheatProtector Switches ; 1-33 Slide Selector For the Reset Temp.

Section 2: Installation Page 9—212-1 Introduction; 2-2 Physical Placement of Heater; 2-3 DrillingRequirements; 2-4 Power Requirements; 2-5 Fuel Tank Require-ments; 2-6 Temperature Sensor Wiring Requirements; 2-7 BuildingCodes: 2-8 Un-packing; 2-9 Heater Installation; 2-10 Installing anExtension Kit; 2-11 Typical Monitor Lifter Pump Installations; 2-12Uses for the Elbow Adapter Kit; 2-13 Fuel Tank Installation; 2-14Heater Installation

Section 3: Operation Page 22—333-1 Introduction; 3-2 Operating Specifications; 3-3 Operating Con-trols and Indicators; 3-4 Pre-operation Check List; 3-5 Operation; 3-6Manual Heater Operation; 3-7 Automatic Heater Operation; 3-8Reprogramming the Monitor Heater; 3-9 Heat Sensor; 3-10 MonitorShutdown; 3-11 Out of Fuel; 3-12 Recovery from a Power Failure; 3-13Recovery from Overheat Condition; 3-14 Recovery from Blown Fuse3-15 Operation Control system

Section 4: Maintenance Page 34-374-1 Introduction; 4-2 Periodic Maintenance; 4-3 Inspect Exhaust AirLines; 4-4 Verify Igniter Operation: 4-5 Clean Fuel Constant LevelValve Filter; 4-6 Cleaning Fusible Link Valve Intake Fitting onM-22;4-7 Corrective Maintenance; 4-8 Replacement of Fuses; 4-9 FuelContamination


Section 5: Servicing Page 38-405-1 Introduction; 5-2 Measurerment of Fuel Flow rate; 5-3 Removal ofWater Deposits and Contaminants from Fuel Constant Level Valveand Fuel Lines; 5-4 Cleaning the Burn Chamber & Burner Pot: 5-5Cleaning the Fuel Inlet

Section 6: Troubleshooting Page 41—54Resistance Valuescomponent Voltage ReadingsTest Point VoltageTroubleshooting Diagrams (Mechanical)Troubleshooting Diagrams (Electrical)Indication of Failure mode

Section 7: Electrical System Page 55-57SchematicMonitor 41 Printed Circuit Board Wiring DiagramMonitor 22 Printed Circuit Board Wiring Diagram


Section 1: Description Page 1-71-1 Introduction; 1-2 Physical Specifications; 1-3 Functional Descrip-tion; 1-4 Description; 1-5 Spill Tray; 1-6 Heater Cabinet; 1-7 Combus-tion System; 1-8 Combustion Chamber; 1-9 Burner Pot; 1-10 Combus-tion Ring Assembly; 1-11 Burner Cap; 1-12 FlameSensor; 1-13 Igniter;1-14 Combustion Air System; 1-15 Flue Pipe; 1-16 Combustion Blower;1-17 Heat Exchanger; 1-18 Air Circulation Fan; 1-19 Air PressureSwitch; 1-20 Fuel Delivery System; 1-21 External Fuel Tank; 1-22Fusible Link Valve; 1-23 Fuel Constant Level Valve; 1-24 SolenoidPump; 1-25 Electrical System; 1-26 Microprocessor; 1-27 Tempera-ture Sensor; 1-28 Safety Mechanism; 1-29 Cloth Covered ExhaustPipe; 1-30 Air Circulation Fan Guard; 1-31 Fuse; 1-32 OverheatProtector Switches : 1-33 Slide Selector For the Reset Temp.

Section 2: Installation Page 9—212-1 Introduction; 2-2 Physical Placement of Heater; 2-3 DrillingRequirements; 2-4 Power Requirements; 2-5 Fuel Tank Require-ments; 2-6 Temperature Sensor Wiring Requirements; 2-7 BuildingCodes; 2-8 Un-packing; 2-9 Heater Installation; 2-10 Installing anExtension Kit; 2-11 Typical Monitor Lifter Pump Installations; 2-12Uses for the Elbow Adapter Kit; 2-13 Fuel Tank Installation; 2-14Heater Installation

Section 3: Operation Page 22~333-1 Introduction; 3-2 Operating Specifications; 3-3 Operating Con-trols and Indicators; 3-4 Pre-operation Check List; 3-5 Operation; 3-6Manual Heater Operation; 3-7 Automatic Heater Operation; 3-8Reprogramming the Monitor Heater; 3-9 Heat Sensor; 3-10 MonitorShutdown; 3-11 Out of Fuel; 3-12 Recovery from a Power Failure; 3-13Recovery from Overheat Condition; 3-14 Recovery from Blown Fuse3-15 Operation Control system

Section 4: Maintenance Page 34-374-1 Introduction; 4-2 Periodic Maintenance; 4-3 Inspect Exhaust AirLines; 4-4 Verify Igniter Operation; 4-5 Clean Fuel Constant LevelValve Filter; 4-6 Cleaning Fusible Link Valve Intake Fitting on M-22;4-7 Corrective Maintenance; 4-8 Replacement of Fuses; 4-9 FuelContamination

MONITOR HEATING SYSTEMSSection 1: Description

1-1 INTRODUCTIONThe Monitor Heating System represents "state ofthe art" technology and, although the heater issophisticated, it is simple to operate, takes littletime to maintain and requires minimum servicing.

The Monitor is a totally integrated heater consistingof a housing(cabinet),a combustion system, an aircirculation system, a fuel delivery system andmicro-computer system.

Redundant safety devices are included in theheater's design to protect the user from injury andthe heater from damage.

This section describes the heaters and their compo-nents.Since a number of components have multiple func-tions, a component may be described more thanonce.

1-2 PHYSICAL SPECIFICATIONSListed below, are the physical specifications thatapply to the Monitors:

Monitor 41:Height:26.6' (67.5cm)Width:28.7" (73cm)Depth:13.8" (35cm)Weight:82 Ibs (37kg)Flue Pipe Hole:2' j "(65mm)diameter

Monitor 22:Height:25.6" (65cm)Width:20.9" (53cmDepth:12.4" (31.5cm)Weight:55 Ibs (25kg)EmptyFlue Pipe Hole:2' 2(65mm)diameter

1-3 FUNCTIONAL DESCRIPTIONAn overview of the functional operation of theMonitors is diagrammed by Fiqure 1-1 and is de-scribed as follows:

Monitor operation always begins with a pre-purgeand a pre-heat, which must be completed beforeoperation can- begin to expel kerosene vapors fromthe Combustion Chamber.

At conclusion of the pre-heat, the Fuel Pumpbegins to work, the fuel is delivered into the pre-heated burner, and then an air fuel mixture is ignit-ed, combustion takes place, and the heater keepspre-burning. When the pre-buring is finished, theigniter turns off, the circulation fan turns on (at theappropriate speed) and the heater will automaticallymaintain the necessary burn rate.

The user is able to monitor the heater s performance

by visually examining a series of indicators on theControl Panel.

A Temperature Selector Control permits the user toset the temperature to the level desired in the room.

Upon commencing heater shutdown, a post-purge isrun.

All heating operations cease-except for the aircirculation fan and the combustion fan which con-tinue. The post-purge continues for three minutesafter a flame goes out.At this point, heater operationstops completely.

Auromatic operation of the Monitor 41 and Monitor22 is controlled by a microprocessor with four sets ofTime Temperature programming per day.

PRE-PURGEPRE-HEAT

IGNITION

COMBUSTION

HEATING

SHUTDOWN

POST-PURGE

Figure 1-1SIMPLIFIED OPERATIVE CYCLE

1-4 DESCRIPTIONThe Monitor heaters are composed of the following:a spill tray, a cabinet, a combustion system, an aircirculation system, a fuel delivery system, electricaland electronics systems and a variery of safety


mechanisms.1-5 SPILL TRAYThe Spill Tray:

— Protects the floor from damage resulting fromfuel spillage.

- Provides a secure, tip-resistant heater base.Metal retainers (2) secure the heater to the SpillTray.The legs are positioned with in the circular indenta-tions.

1-6 HEATER CABINETA steel Cabinet holds and protects all internalcomponents.

A number of primary parts are assembled to formthis housing.

1-7 COMBUSTION SYSTEMThe Combustion System is responsible for theproduction of heat which is circulated into the room.

In the Combustion Systems a mixture of fuel and airis burned to produce heat. Air is drawn from outsidethe dwelling into the Combustion Chamber. At thesame time, fuel is metered from a storage cavity intothis same Combustion Chamber.Within the cham-ber.the air fuel mixture is ignited to produce heat.The Monitor combustion systems are safeguardedby a pair of overheat protector switches; They willshut down the heater (to protect it from damage) inthe event of excessive heat build-up. The overheatprotector switches reset automatically after coolingdown.

1-8 COMBUSTION CHAMBERThis tall cylinder is positioned on the Heater Base.It is secured to the base by Phillips head screws.

Connected to the Combustion Chamber are theigniter, (located within the chamber) a fuel line, theHeat Exchanger, and a Flame Sensor.

Within the Combustion Chamber are the Burner Pot,the Combustion Ring Assembly and the BurnerCap(M-22). Access to those internally-located partsis facilitated by a removable Service panel.A Win-dow on the panel lets the technician visually exam-ine the combustion process(i.e. glowing igniter orproper flame color).

An airway, in the Cabinet Base, extends from theintake fan of the Combustion Blower to the hollowbase of the Combustion Chamber. This airwaychannels air to the Combustion Chamber.

The Flame Sensor is mounted with two (2) phillipshead screws onto the wall of the CombustionChamber.

1-9 BURNER POTDesigned specifically to support combustion, theBurner Pot (refer to Figure 1-2) contains a series ofair holes, an igniter tube (to accommodate theIgniter), and a fuel inlet fitting (interconnects the fuelline). It is secured to a mounting plate near thebottom of the Combustion Chamber.

The Combustion Ring Assembly is seated on three(3) screws or pins in the Burner Pot.

1-10 COMBUSTION RING ASSEMBLYThis assembly is a speciai structure, designed topromote efficient combustion.

1-11 BURNER CAPSecured by tabs and a screw on the Burner Pot, theBurner Cap "shapes" the flame into its comfigurationand height. (M-22 only)

1-12 FLAME SENSORMounted on the outside wall of Combustion Cham-ber, the Flame Sensor always supervises the flame.

1-13 IGNITERLocated within the igniter tube of the Burner Pot, theIgniter is designed to pre-heat the Burner Pot and tovaporize and ignite the air/fuel mixture to start thecombustion process.

The Igniter is secured by a bracket and screw to theigniter tube. The cover plate is secured to thecombustion chamber by three (3) phillips headscrews.

1-14 COMBUSTION AIR SYSTEMThe Combustion Air System channels air to andfrom the heater.

Outside air is drawn into the heater by the Combus-tion Blower through an airway to the CombustionChamber.

A Combustion Blower draws the intake air into thethrough a Flue Pipe. This air enters the CombustionChamber at the Burner Pot and mixes with the fuelto support combustion, Remaining air is heated andis drawn into the Heat Exchanger.

As the heated air passes through the Heat Exchan-ger, an Air Circulation Fan blows room air past theHeat Exchanger and out again into the room, heat-ing passing air by convection. Exhaust vapors exit-ing from the Hear Exchanger are vented through theFlue Pipe.

A deterioration of air pressure at the Air PressureSwitch is an abnormal condition; the heater is shutdown by the malfunction.


1-15 FLUE PIPEFlue Pipes are available in three (3) sizes. Thisprovides the flexibility to meet the installationrequirements for dwelling of various wall thicknes-ses.

One side of the Flue Pipe contains a '"T-shapedfitting consisting of four ports. This side is mountedon the interior wall of the dwelling. The pipe side ofthe Flue Pipe is vented outside the dwelling.

The Flue Pipe Assembly consists of two concentrictubes. Outside air is drawn through the cylindricalspace between the tubes.Combustion by-products are vented through theinner tube.

As the cool air enters, it is heated by the hot air thatis exiting the system.

A large-bore, flexible hose connects the air inlet porton the Flue Pipe with the Combustion Blower; acloth-covered metal pipe connects the CombustionBlower with the exhaust outlet on the Flue Pipe.

IMPORTANT: If extension kits are utilized, use thecorrect damper as follows:

Table 1-1 COMBUSTION AIR CONTROL

Extension kitUp to 3 elbows withExtra Short Extensior kitLength: 11' ,"-7' ,"

Up to 3 elbows withShort Extension KitLength: II1 ,"-20' ,'

Up to 3 elbows withMedium Extension KitLength: 20' ,"-38"

Up to 3 elbows withLong Extension KitLength: 38"-73"

M-41"STANDARD"

damper

"STANDARD"damper

"EXTENSION"damper

"EXTENSION"damper

M-22

"STANDARD"damper

"STANDARD"damper

unused

unused

1-16 COMBUSTION BLOWERThe combustion blower on the Monitor 22 is a dualfunction fan.The intake fan draws in outside air thru the flue pipefor internal combustion. The cooling fan which runson a common shaft with the intake fan circulates airinside the heater cabinet to keep internal compo-nents cool.

The Monitor 41 combustion blower has a two stageintake fan.

Burner modes control fan speeds and the solenoiddamper in the blower casing. Those functions are asfollows:

Burn Mode

High

Medium-High

Medium-Low

Low

Fan Speed

High

Low

Low

Low

Solenoid Damper

C Open)

Off (Open)

On (Close)

On (Close)

1-17 HEAT EXCHANGERAn inlet at the top of the Heat Exchanger permits theheated air to travel from the Combustion Chamberinto the exchanger.An outlet, at the bottom of the exchanger, permitscombustion by-products to be vented to the FluePipe.

While moving through the Heat Exchanger, the hotair within the exchanger heats the outside metalwalls. The hot metal walls, in turn, heat air that ispushed past the exchanger and is circulated intothe room. An air baffle, directly in front of theexchanger, deflects the heated air upwards, and out,through the louver assembly.

A pair of Over-Heat Protector Switches protect theheater from damage due to excessive heat built-up.

1-18 AIR CIRCULATION FANBoth Monitor circulation fans are driven by two-speed motors and are designed to circulate theheated room air.

If the heater is running in low and medium-low burnmodes, the fan also runs at low-speed; in medium-high or high burn modes, the fan advances tohigh-speed.

Operation of the fan is controlled by the micro-processor and fan thermostat switch (52°C 126T---on, 35'C 95'F -Off)

Physically assembled with a protective wire cage forthe Monitor 41 and metal mesh cage for Monitor 22,the entire fan assembly is secured to a bracket onthe rear of the Heater Cabinet.

A metal conduit, at the rear of the heater, protectsthe fan wiring from damage.

1-19 AIR PRESSURE SWITCHThis switch consists of a rubber diaphragm whichsenses changes in air pressure(it is connected tothe Combustion Blower) and normally-open, microswitch.

Should an abnormal pressure differential exist, theswitch opens to disable the circuitry that controls


the supply of fuel. Since the flow of fuel to the BurnerPot is cut off.the flame extinguishes (after all fuelcurrently in the line has been consumed), and theBurner Status Indicators blink.

This safety mechanism can be triggered by severalconditions:

— Leak or loose connection in air line— Leak, loose, or broken tubing which connects

the Air Pressure Switch with the CombustionBlower

- Clogged or blocked Air Line— Blocked or clogged Flue Pipe— Intake port of Combustion Blower is blocked.- Combustion Blower is inoperable

1-20 FUEL DELIVERY SYSTEMFuel Delivery is a very important aspect of theMonitor's operation.

The fuel flow must be maintained at a level corre-sponding to the burn mode, so that combustion canbe conducted efficiently.

Fuel moves by gravity-flow from the external fuelstorage tank or the capsule fuel tank to the FuelConstant Level Valve.

The Solenoid Pump meters the flow of fuel from theFuel Constant Level Valve to the Burner Pot.

The metered flow of fuel is carried to the Burner Potby a copper fuel line.

1-21 EXTERNAL FUEL TANKThe Monitor 22 gives the user the option of eitherusing the internal capsule tank or hooking up to anexternal fuel tank.

Fuel for the Monitors can be stored in, and fed froman external storage tank. The tank, which generallyis dealer installed, should contain a shutoff valve, afuel filter and a vent. Installation of the tank shouldconform to local regulations and to the specifica-tions and guidelines documented in this ServiceManual.

1-22 FUSIBLE LINK VALVEBasically, the Fusible Link Valve is a safety mecha-nism that cuts-off fuel to the heater in the event ofan overheat condition at the valve.

The fusible link valve is mounted as a standard itemon the Monitor 22. Located outside the rear of theHeater Cabinet, the Fusible Link Valve is a spring-loaded device that cuts off the supply of fuel to theheater when the temperature level (at the valve)exceeds a predefined maximum limit.

An inlet on the bottom of the valve allows fuel to

pass into the heater. The handle-which can alsomanually be opened or closed-sits on a spring-loaded stem which contains a low-melting pointalloy.

The fusible link valve can be externally mounted onthe Monitor 41 if required.

1-23 FUEL CONSTANT LEVEL VALVEThis valve has an automatic shutoff safety mecha-nism and a Fuel Set Lever. The safety mechanismprevents fuel from flooding or overflowing from thefuel reservoir. The Fuel Set Lever resets the float sothe Fuel Constant Level Valve can resume opera-tion.

The fuel reservoir is a tank which contains a floatassembly, a safety mechanism, and a priming lever.

Both the Monitor 22 and 41 fuel control valves arebasically the same, however they are of differentsize and material and can not be interchanged.Fuel enters the Fuel Constant Level Valve throughan inlet at the bottom of the reservoir. As the levelof fuel rises, it passes through a filter (whichremoves most particles and foreign matter from thefuel), flows up through an open inlet valve andenters the tank.

IMPORTANT: The Fuel Constant Level Valve filtershould be cleaned or replaced peri-odically. Time intervals will dependon purity and quality of fuel.

Within the Valve, a float mechanism controls thelevel of fuel that will be permitted to the reservoir. Asthe fuel level drops, the float drops down to increasethe inlet valve opening to admit more fuel into thevalve. When the fuel level reaches its muximumvolume, the float rises to shut the inlet valve.In the event that fuel within the reservoir rises to anabnormally high level, a float within the reservoirrises to trip a safety lever. This safety lever drops toprevent fuel from entering into the reservoir.

Should a foreign substance cause the inlet valve tostick (or prevent it from opening), the Fuel Set Leveris utilized to free the valve and to admit fuel to thereservoir.

CAUTION: Care must be taken to preventdust, dirt, or other debris fromclogging or blocking the inletvalve. If debris collects on theseat of the inlet valve it maycause tripping of the safety leverand will require cleaning.


1-24 SOLENOID PUMPThe Solenoid Pump is mounted on the Fuel Con-stant Level Valve, controlled by a microcessor.andfour modes(High, Medium-High, Medium-Low, Low)fuel flow is delivered to the Burner Pot.

1-25 ELECTRICAL SYSTEMElectrical power is supplied to the Monitor to run theMicroprocessor and the other electrically-energizedcomponent.

Electrical operation of the Monitor can be thought ofas having the following eight(8) distinct phasesiplugin; turn-on; pre-purge pre-heat; ignition: pre-combustion; heating; Shutdown and post-purge.

All electronic diagrams, Such as wiring diagram,circuit board layout and electrical schematic can befound in Section 7 of this Service Manual.

1-26 MICROPROCESSORPrincipally consisting of a 64-pin Integrated Circuit,the Microprocessor provides safety timings, controlsrelays and provides clock and thermostat functionsfor the Monitor heater. A component layout of thePrinted Circuit Board is found in Section 7 of thisService Manual.

1-27 TEMPERATURE SENSORThe sensor which is capable of sensing room tem-perature within a range of 42T to 96 F. can be leftmounted on the back of the heater cabinet or bewall mounted.

Approximately 6' ,' (about 200 cm) of No. 20 AWGWire is supplied with the sensor to facilitate wallmounting the sensor in a favorable location.

1-28 SAFETY MECHANISMSSeveral safety mechanisms have been built into theMonitor Heating System. These devices protect theuser against personal injury, protect the heateragainst damage, and shutdown the heater if amalfunction occurs.

1-29 CLOTH COVERED EXHAUST PIPEInsulating cloth covers are to be placed over allmetal surfaces of the Exhaust Line during installa-tion.Since combustion by-products are vented at ele-vated temperatures, the Exhaust Pipe will becomehot during operation. The insulating cloth coversprotect the user from burn hazards associated withaccidental contact with these heated metal sur-faces.

During installation make sure that all Exhaust Linesare tight. Do not operate the heater without theinsulating covers.

1-30 AIR CIRCULATION FAN GUARDThis guard is an integral part of the fan assembly.

The guard protects the user against physical injurywhich could occur from accidental contact withrevolving metal fan blade.

1-31 FUSE2-amp. and 10-amp.. 125VAC, fuses protect theheater from damage resulting from power overloads.

In the event of a power surge or internal wiringhazards, the fuse opens and power to the heater iscut off.

The electrical outlet into which the heater is con-nected should be protected by at least a 15-amp.fuse or circuit breaker.

1-32 OVERHEAT PROTECTOR SWITCHESConnected in series, two (2) normally-closed Over-heat Protector Switches safeguard the heatersagainst damage due to overheating.

The Monitor 22 switches are rated 110"C (230'F).The Monitor 41 switches are rated 115'C (239'K).Should a Monitor overheat (internal temperaturesrise beyond 110"C (230'F) on the Monitor 22, 115t(239'F) on the Monitor 41) either or both switcheswill open to shut down the heater. After extinguish-ing the flame, the Burner Status indicators continueto blink. The Overheat Protector Switches will auto-matically reset after cooling down.

Once the heater has cooled to 80'C (176'F), thesystem can be restarted. To restart the Monitor,proceed as follows:

A. Press ON OFF Switch to OFF.B. Allow heater to cool.C. Troubleshoot the cause of the overheat.D. Press ON OFF switch to ONE. Proceed with normal operation.

V33 SLIDE SELECTOR FOR THE RESET TEMP.Once power is restored after power interruption bypower failure or by disconnecting heater plug fromwall outlet, heater will resume operation in theMANUAL mode and maintain room temperatureaccording to the setting temperature selected byusing the selector for the reset temperature at thelower right hand side of the cabinet.


AIR CIRCULATION FAN

COMBUSTION CHAMBER

FLAME SENSOR

COMBUSTION RING

BURNER POT

FLUE PIPE

INTAKE OUTDOOR AIR

SOLENOID DAMPER

AIR PRESSURE SWITCH

Figure 1-3 ELEMENTS OF COMBUSTION SYSTEM (MONITOR 41)

MONITOR HEATING SYSTEMSSection 2: Installation

2-1 INTRODUCTIONInstalling the Monitor System at the user's locationcan be performed quickly and economically. TheMonitor 22can be used as either an internally fueled(capsule tank) or remotely fueled System. TheMonitor 41 model is strictly a remotely fueledsystem and both are externally vented. As such bothneed the installation of an externally vented intakeexhaust system and if remotely fueled, will need theinstallation of a remote fuel storage tank.

By completing each step of the easy-to-followinstallation instructions (each step should be com-pleted in the exact order specified), the Technicianis directed through the installation process.

This section contains all relevant installation infor-mation including:

— Installation specifications— List of installation tools— Alternative types of venting systems (and in-

stallation procedures for each)— Basic requirements for fuel tank installation— Instructions to install the Monitor System

IMPORTANT: Before beginning installation of theMonitor vented heating system (in-cluding any electrical wiring andfuel supply equipment), check localbuilding,electrical, mechanical andfire codes. The requirements ofthese codes must be followed toinsure lawful installation and use.

The heater can be located almost anywhere withinthe dwelling provided that electrical, fuel, and ex-haust specifications are met.

2-2 PHYSICAL PLACEMENT OF HEATERIn addition to the space taken up by the heater,interior space must also be reserved for free aircirculation. Remove all combustibles from the heat-ing area.

Unless building or fire codes dictate otherwise, theMonitor system can be placed on any floor surface(including carpeting or other combustible material)and provide safe operation.

2-3 DRILLING REQUIREMENTSThrough-the-wall Flue Pipe installation requires thata 2 ' .," (65mm) hole be drilled through the dwellingwall (interior to exterior). The hole must be pitcheddownward toward the outside at an approximateangle of 2 (aboutL /' per foot). The appropriate wallarea (in which hole will be drilled) must contain nointernal obstacles such as piping, wiring, air ducts,or studs.

RECOMMENDED TOOL KIT FOR MONITORHEATER SERVICE TECHNICIANS

1) =2 Phillips Head Screwdriver2) Steel Tape Measure3) Felt Tip Pen or Pencil4) Caulking Material (exterior grade)5) Electrical Drill

(reverse capability recommended)6) Hole Saw, Saber (Jig) Saw, or other appropriate

tool for cutting a 2.5" diameter hole for flue pipe7) Rubber Clipping Tool8) Long Drill Bit—' t"9) -2 Standard Screwdriver

10) Adjustable Wrenches (various sizes)11) Copper Tubing Cutter12) Copper Tubing Flaring Tool13) V.O.M.(Volt, OHM. Meter with shielded probes)14) Level15) Plumber's Pipe Thread Tape16) Small assortment of Self-Tappeng Screws17) Assorted Pliers (Slip Joint, Needlenose, Cutting,

Lock Joint)18) Phenolic Probe or Insulated Screwdriver19) Supply of 125V, 2 and 10 Amp fuses20) Floor mat to cover carpeting21) Quart size pan for draining fuel

2-4 POWER REQUIREMENTS

WARNING

THE MONITOR POWER CORD MUST BE PLUGGEDINTO A DIRECTLY ACCESSIBLE WALL OUTLET.DO NOT USE AN EXTENSION CORD TO MAKETHIS ELECTRICAL CONNECTION.

Line current to the system should be 120 VAC at 60Hz. The electrical system should be protectedagainst current overload by means of at least a15-ampere fuse or circuit breaker.

NOTE: The wall outlet should supply electricity forthe Monitor system only. Do not connectany other electrical appliance to it.

CAUTION: In some installations, it may bebest to hard-wire the heater to thehouse circuits. A competent,licensed electrician should dothis.


2-5 FUEL TANK REQUIREMENTS

INSTALLATION OF ANY REMOTELY LOCATEDFUEL TANKS MUST COMPLY WITH ALL LOCALSTANDARDS AND OR BUILDING CODES.

Heater fuel (crystal clear kerosene only) can bestored in remotely located storage tanks rangingfrom 55 gallon drums to 275 gallon tanks. Whenusing large tanks a pressure regulator with a max. of2.5 PSI should be installed near heater inlet.

CAUTION: In some installations, it may bebetter to install permanent fueltank plumbing. A licensedPlumber should do this.

2-6 TEMPERATURE SENSOR WIRING REQUIRE-MENTSA wall-mounted temperature Sensor gauges roomtemperature and automatically regulates the heatingcycles of the Monitor System.

The standard sensor wire is 6J ,' long and can beleft mounted on the back of the cabinet as shipped.If this is not practical the sensor can be mounted ona wall.

CAUTION: II sensor is to be mounted re-motely be careful not to place it indirect sunlight, on uninsulatedexterior walls in drafty areas etc.,as this will create an inaccuratetemperature reading.

2-7 BUILDING CODESFire regulations, electrical and other local buildingcodes may govern the installation and use of avented heater and related fueling systems. Prior toinstallation, check and comply with all codes.

2-8 UNPACKINGSave all shipping materials until the Monitor hasbeen completely installed and is working properly.A. Cut the two plastic ribbons that hold the ship-

ping carton together.B. Remove the top.C. Remove from the shipping carton the Cardboard

(drilling) Template and the Owner s Guide.

NOTE: The Dealer should complete the Registra-tion Card at time of customer purchase andreturn it to Monitor Products, Inc. as soonas possible.

D. Remove the spill tray from shipping carton, andremove the plastic bag.

E. Remove the plastic bag covering the hearer.F. Remove the plastic bag containing the heater

parts.and set it aside.G. Remove the Flue Pipe from the rear of the

heater. When ready to install, separate FluePipe from cardboard packing materials.

H. Firmly grasp cabiet handles (one on each sideof heater cabinet) and lift heater off the card-board shipping base.

I. Check for parts as listed in Monitor OwnersGuide.

IMPORTANT: Only the standard-size Flue Pipe isshipped with the heater. The Moni-tor dealer will also stock MediumRue Pipes, Window Kits, ExtensionKits, and other accessories thatmay be required for non-standardinstallations.

10


2-9 HEATER INSTALLATIONIn choosing a location for your heater, the followingguidelines must be considered:•The heater MAY be installed on combustible

floors.• The area around the heater should be free of

obstacles that might interfere with the free flow ofair.

Allow the clearances shown in Figure 2-1.• The heater must not be installed in a combustible

fireplace.• An AC wall outlet must be within reach of the

heater's power cord. Extension cords must not beused.

• The area outside where the flue pipe will emergeshould be free of foliage, fuel storage tanks andflammable objects. Air should circulate freely inthe area. Allow the clearances shown on follow-ing page.

• The wall where flue pipe hole will be cut shouldbe free of plumbing pipes, electrical wires, studs.air ducts and other obstacles.

NOTE: After using the installation template as aguide for drilling the flue pipe hole, theMonitor Flue Pipe can be normally installedaccording to the Illustration procedure inthe Monitor Manual.

Just in case the template was misplaced, the ap-proximate flue pipe hole location measurements areas follows:

Tha center of The Joint Pipeopening, which connectsto the Flue Pipe.

M41

Back of Heater

15cm, 6in

25cm, 10in The center of The Joint Pipe Back of Heater

M22

100cm, 39in

Figure 2-2

100cm, 39in

Figure 2-1

11


FLUE PIPE CLEARANCESFlue pipe installations should provide for venting to an unconfined space through which there is a free flow ofoutdoor air. Clearances to adjacent walls or obstacles must comply with the requirements shown below.

Frontal Clearance

ACAUTION: 24 (60cm)Do not attach anything onto the outlet or moreof the flue pipe.

(13.5cm) j4

Clamp 1 II

'-. J jHeater

Overhead Clearance r h (.h|

24' (60cm)or more

Body -r iClamp . I

Heater -I :*<- •

Side Clearance BodyClamp

\-H

j1

1Heater- J8

•

<- Wall !Any construction Eabove Flue Pipe

S1^' must not come _ i(14 within 24' (60cm) Icm) of front obstacle

-or+ 24" (60cm) .more or more j Front Obstacle..-Flue Pipe !

8" (20cm)or more

Ground or slab surface

Non-combustible

~ Wal! Combustible

fjr 24' (60cm)<£jr or more

45' "7 T

-;•/ 12' (30cm)/ or more

f" ' — Flue Pipe

Ground or slab surface

Side obstacle

" " ~18' (45cm)or more

t^ -VFlue Pipe

IMPORTANT:In open area with strong wind, a wind break may benecessary.

a

t

'>

^

&

Figure 2-3

12


HOW TO PREVENT FREEZING IN COLD CLIMATE.

Exhaust Elbow

Front Obstacle

SNOW SURFACE or GROUND

In areas of heavy snow falls,ground surface clearance mustbe increased according toaverage snow falls, to preventflue pipe from being buried.

^

Long — . N

Extension \

J

=5:

c *"iMust be higher.

'•"..'•.!'••" Snow

t

Figure 2-4 FLUE PIPE CLEARANCES

INSTALLATION OF FLUE PIPE WINDOW KITA window kit makes it possible to vent the heaterfrom dwellings in which through-the-wall venting isneither practical nor possible.

The Window Kit is available in two sizes. The ShortWindow Kit accommodates windows from 20 to 32"wide; the Long Window Kit accommodates windowsfrom 31 to 50" wide.

NOTE: The procedure below describes how aWindow Kit is installed in a double-hungwindow. The Window Kit can also be in-stalled in a vertical, sliding type window.

Install the Window Kit in the manner outlined below:

STEP 1: Install Flue Pipe in Window KitA. Push the rubber seal into the Flue Pipe hole on

the window kit frame. The hole on the sealshould be positioned at the exterior side of theframe.

B. Using the four (4) Phillips head screws, fastenthe spacer to the frame.

C. With the arrow on the Flue Pipe pointing UP,align the screw holes on the Flue Pipe withthose on the Spacer. Secure with three (3)Phillips head screws.

13


STEP 2: Install Window Kit in the Window

IMPORTANT: Prior to installation, clean the win-dow frame of all dust, dirt, anddebris.

A. Raise the lower windowB. Place the window kit frame into the innermost

track of the window.C. Expand the frame until it fits loosely within the

width of the window; it may be necessary toloosen the large set screw on the frame in orderto do so.

D. Slightly lift window kit frame. Slide the L-Adapter under the frame and position it at the

point where the inner and outer frame meet.Expand the frame to fit the window tightly.Adjust the position of the L-Adapter. if neces-sary. Tighten the set screw to secure the frame.Secure the L-Adapter to the window sill withtwo (2) wood screws.Lower the window firmly down upon the top ofthe Window Kit frame.Measure the width of the upper (outer) window(which is located in the outer track). Cut alength of the Rubber Packing to this size.Remove the protective backing and firmlymount it onto the underside of the outer win-dow.


STEP 3: Install Window LockA special window lock replaces the usual clam-

shell lock.

To install the window lock, proceed as follows:A. Turn locking lever to left and disengage lock

from lock bracket.B. Attach lock bracket to left-hand side of upper

window frame. Use the two wood screwsprovided.

NOTE: If the lock bracket prevents the lowerwindow from sliding upward, notch thebracket into the upper window frame.

C. Slip lock into lock bracket.

IMPORTANT: Window can be locked by turninglocking lever to right; to open, turnlocking lever to left and removelock from bracket.

D. Two adjustable-position stops are supplied toaccommodate various window sash thicknes-ses. If short stop is too small, remove tworetaining screws and brackets which hold theshort stop to the underside of the lock. Removethe short stop and substitute the long stop.Adjust to proper position, and secure withscrews and washers previously removed.(Before securing the stop to the window,remove the protective backing and firmly stickthe stop packing onto the underside of thestop,)

NOTE: Windows with deep sills may require theuse of an extra intake and exhaust elbowto provide clearance for flue pipe hook up,A piece of the air intake line can be cut tojoin the two intake elbows together.

Deep Window Sill

One Exhaust Elbow

Two Intake Elbows

Figure 2-6

15


2-10 INSTALLING AN EXTENSION KITInstalling an Extension Kit requires the constructionof an air line and the exhaust line. The air line isconnected between the Air Supply Elbow at the rearof the heater and the air inlet port on the Fiue Pipe.Similarly, the exhaust line is connected between thejoint pipe at the rear of the heater, and the exhaustport on the Flue Pipe.

IMPORTANT: The PVC air line is longer than theexhaust line and may need to be cutto size. Be sure, however, to thor-oughly deburr all rough edges.

Figure 2-7 COMPONENTS OF EXTENSION KIT

ITEM=

1

2

3

4

5

DESCRIPTION

PIPE. Air supply

JOINT, Air line

ELBOW 90 Air line

LEG. Wall-standoff

PIPE CLAMP. Top

ITEM:

6

7

8

9

DESCRIPTION

PIPE CLAMP, Bottom

SCREW, Legs, mounting

SCREW, Pipe Clamp

BOND, Adhesive

16


Max lengths and bends allowable using extensionkits.

Extension kits are available in four diffirent lengths.For exact dimensions refer to the accessoriescatalog.

3-90 Bends10 R.Max

Figure 2-8 MAX LENGTHS AND BENDS ALLOWABLE USING EXTENSION KITS

17


2-TI TYPICAL MONITOR UFTER PUMP INSTALLA- For more detailed information look under KeroseneTIONS Lifter manual.

NOTE: The same minimum and maximum pumpheights must be maintain as is with otherfuel tanks. Figure 2-12

MONITOR"' KEROSENE UFTER MONITOR1" KEROSENE UFTER(CAN BE POSITIONED BEHIND UNIT)

MONITOR"1 KEROSENE LIFTER MONITOR1M KEROSENE LIFTER GRAVITY

Figures 2-9


2-12 USES FOR THE ELBOW ADAPTER KITConvert from Monitor 20 30 to 22 41 using an elbowadapter Kit (part=8213) and utilizing existing fluepipe installation.

PARTS LIST EXPLODEDName No

Rel. of inNo. Part Unit1 Exhaust Pipe Clamp2 Exhaust Elbow 13 Exhaust Joint 14 Joint Supporter 15 Heat Insulation Cover 16 Self-Tapping Screws 27 Hose Clamp (this part comes with your

Monitor1*1 Heater)8 Air Damper {this part comes with your

Monitor™ Heater)9 Flue Pipe (this part comes with your

Monitor"1 Heater)

A. Remove Monitor 20 30 heater and flue pipe.B. Install Monitor 22 41 flue pipe into sleeve.C. Slide the exhaust elbow onto the exhaust port

opening on the rear of the heater. (To locateexhaust port opening, see your Monitor Owner's Guide.)

D. Secure the exhaust elbow by attaching theexhaust pipe clamp to the heater cabinet withtwo self-tapping screws.

E. Cover the adjustable exhaust pipe with heatinsulation cover.

Figure 2-10

F. Remove metal cap on side mounted exhaustport of flue pipe and replace into the port (theMonitor 22 41 is now ready to be positionedinto place.)

NOTE: Be sure the exhaust elbow is firmly fixed onthe flue pipe with a joint supporter.

G. Insert air supply elbow opening over flue pipeair intake flange and secure with hose clamp.

NOTE: The Standard Air Damper is installed overthe flue pipe "air intaka flange." (To locateflue pipe "air intaka flange", see yourMonitor™ Owner's Guide.)

Elbow adapter kits may also be used to raise a fluepipe high enough to clear certain base board heat-ing systems.

2-13 FUEL TANK INSTALLATIONPictorial views of alternative types of storage facil-ities and delivery systems are illustrated (Figure2-12).

Since fuel storage tank installation techniques varyfrom place-to-place (often dependent upon appli-cable codes), a particular installation procedurecannot be specifed. However, certain criteria governthe fuel hook-up of the Monitor Use the followingcheck list as a guide to the fuel storage facilities:

USE ONLY CRYSTAL CLEAR KEROSENE. NEVERUSE GASOLINE, WHITE GAS, CAMP FUEL OROTHER FLAMMABLE LIQUIDS. USE OF SUCHFUELS CAN RESULT IN AN EXPLOSIVE RRE ANDCAUSE SEVERE INJURY.

Fueling Options AvailableFueling of the Monitor Heating Systems can beaccomplished in one of 3 ways:1. Capsule Tank (on the Monitor 22).2. Gravity Fed Large Capacity External Tank:

Practical for large heating needs where bulkdelivery of kerosene is available. This systemshould be installed by a qualified plumber orfuel supply technician.

*3. Large Capacity External Tank with Pump: Forlarge heating needs where a gravity fedsystem is not practical. An electric pump, theMonitor™ Kerosene Lifter, especially designedfor use with Monitor heating systems.

"if a pumping system is used is used to supply fuel,the inlet pressure to the heater must not exceed 2.5 psi.

19


To install a large capacity, gravity fed external tank,follow the instructions below. Use of a qualifiedinstaller is recommended.

• Installation height of the bottom of the fuel tankshould be 16 inches or more above the floorsurface on which the heater stands. Thisinsures that inlet fuel pressure will be sufficient.The top of the fuel tank should be no higherthan 8' > feet above the floor under the heater.This insures that inlet fuel pressure will not beexcessive.

• The horizontal length of piping should notexceed 100 feet and should be free of sharpbends or obstructions.

• Piping should include no inverse U-type bends(to avoid air locks, which could block the fuelsupply).

• Only J , inch OD copper tubing should be used.The tubing should be bent carefully to avoidcrimping.

• A fuel filter is recommended for use on the fuelline near tank, and a shut-off valve should beinstalled at the tank.

• Flare connections should be used at the fusiblelink valve connection on the heater and at thefuel filter to be installed at the tank.

• The fuel tank should be located no closer than6 feet to a source of heat.

• The fuel tank should have an opening for fillingon the top and a vent with a weather-proof capon the side. On some tanks the vent and fillspout use the same opening.

55,100, and 250 gallon tanks must contain:

• Shut-off valve at tank outlet• Disposable fuel filter (protects heater against

condensation and other impurities)• Fueling inlet (protected by weather-proof cap)• Ventilation outlet• Clearance of at least 6' from any source of heat

Allowable Height Dimensions:• Bottom of tank-at least 16" above floor holding

heater (maintains sufficient pressure)• Top of tank-maximum of 8' / above floor

holding heater (prevents excessive line pres-sure)

• Position of Lifter-more than 8' above fuel inletof heater requires pressure reduction valve.

RECOMMENDATIONPipe fittings in the fuel supply to the Monitor heatingsystems should be sealed with pipe thread tape.The supply line from the tank to the Monitor1'1

Kerosene Lifter must be absolutely air tight. 275gallons and bigger tanks should have a 2.5 P.S.I,max pressure reducer to avoid excessive pressureat heater inlet.

2-14 HEATER INSTALLATIONThe Monitor heaters can be physically situated oncarpeting or other combustible flooring with com-plete safety. The selected heater site must beaccessible to an electrical outlet, must support freeair ciculation (both internal and external), and mustnot contain combustible materials in the heater'simmediate vicinity.

Interior orexterior gravity-fed 55. 100, or 275-

gallon tank

Litter

Lifter circulatesfuel from remotestorage tank

Figure 2-11 ALTERNATIVE SOURCES OF FUEL STORAGE


Outdoor Fuel Tank

Shut-off Valve. Flare Connection--- -.1

: , OD Copper Tubing

Outdoor Fuel Tank

Shut-off Valve

." Flare Connection

ff

Fuel Filter

16"

Flare Connection (°-4m)

OD Copper Tubing

Figure 2-12 TYPICAL FUEL LINE CONNECTIONS

21

MONITOR HEATING SYSTEMSSection 3: Operation

3-1 INTRODUCTIONMonitor is an easy-to-operate vented keroseneheater. Routine operation features high BTU output,automatic adjustment of room temperature, low fueland power consumption, and choice of automatic ormanual heater operation.

This section provides all information necessary tooperate the Monitor Heating System. All operationprocedures specified should be performed in theorder in which they are described.

3-2 OPERATING SPECIFICATIONSThe following specifications apply to the operationof the Monitor 41 and the Monitor 22:

Monitor 41— Rated Efficiency (as applied to kerosene

heaters): 93%"— Rated Efficiency (as applied to central heating

systems): 87%— Power Consumption : as follows

HIGH MEDIUM-HIGH MEDIUM-LOW LOW

IGNITION E W BURN BURN BURN

340watts 65watts 62*atts 58watts SSwatts

— Circulation Fan Output : 388 cubic feet min.— Fuel source : Remote, separate tank— Potential heating area : 900-3200 sq. feet

"The energy from the combustion process isreleased in the form of heat and vaporized water.Normally, heating systems discharge water fromcombustion to the atmosphere without condensingit. This 93% efficiency rating means that, assumingthe water cannot be condensed, 93% of the heatproduced by the combustion process is recovered.Assuming the water can be condensed, the effi-ciency is 87%.

NOTE: Actual effective heating area depends uponnumerous factors such as type and severityof climate, type of dwelling construction,condition of dwelling, and thickness andeffectiveness of dwelling insulation.

Table 3-1 lists Monitor 41 performance specifica-tions at various user-selected heat output settings.

Table 3-1 HEATER PERFORMANCE SPECIFICATIONS

Specification

Rating

Heater Output hr.

Fuel Consumption (gal hr)

8-hrs day burntime (5-gal. tank)

Continuous-use burntime (5-gal.tank)

8-hrs day burntime (55-gal.tank)


8-hrs day burntime (275-gal.tank)


Setting

Low

16,200

15,000

0.12

5.2days

41.7hrs.

57.3days

19.1days

286.5days

95.5days

MediumLow

21.000

19,500

0.16

3.9days

31.3hrs.

43days

14.3days

214.8days

71.6days

MediumHigh

33,900

31,500

0.25

2.5days

20hrs.

27.5days

9.2days

137.5days

45.8days

High

43,000

40,000

0.319

2.0days

15.7hrs.

21.6days

7.2days

107.8days

35.9days

22


Monitor 22Rated Efficiency (as applied to keroseneheater): 93%"

— Rated Efficiency (as applied to central heatingsystems): 87 %

— Power Consumption : as follows

HIGH MEDIUM-HIGH MEDIUM-LOW LOWIGNITION BURN BURN BURN BURN250watts 52watts Slwatts SOwatts SOwatts

— Circulation Fan Output : 176 cubic feet min— Fuel source : 1.32 U.S. gal., separate tank

optional— Potentional heating area : 600-2000 sq. feet

Table 3-2 lists Monitor 22 performance specifica-tions at various user-selected heat output setting.

Table 3-2 HEATER PERFORMANCE SPECIFICATIONS

Specification

Rating

Heater Output hr.

Fuel Consumption (gal hr)

8-hrs day burntime (1.32-gal. tank)

Continuous-use burntime (1.32-gal. tank)

8-hrs day brntime (55-gal.tank)


Setting

Low

9,600

8,900

0.07

2.4days

13.9hrs.

98.2days

32.7days

MediumLow

11,700

10,900

0.09

LSdays

14.7hrs.

76.4days

25.5days

MediumHigh

17,400

16,200

0.13

1.3days

10.2hrs.

52.9days

17.6days

High

22,000

20,400

0.164

LOdays

S.Ohrs.

41.9days

14.0days

23


3-3 OPERATING CONTROLS AND INDICATORSSeveral controls and indicators are used to operatethe heater and to monitor its performance as follows:

RUN AUTO EMPTY BURNER STATUS SET ROOM

aBSSi.LOW HIGH

TEMPAM

/PM

4 6

Figure 3-1, INDICATORS

10 11 12 13 14!

OPERATION I TIMER SELECTORCLOCK CLOCK I I I

TEMP SET 1st 2nd 3rd 4thON OFF AUTO

TIME TEMP SET

HOUR MINUTE SET CLEAR

[D=

20

TEMP

16 17

Figure 3-2, CONTROLS

FIGURE AND ITEM NO CONTROL OR INDICATOR. FUNCTION

Figure 3-1, Iteml RUN Indicator Light Light to indicate that power has been aplliedto heater.Illuminates when operation ON OFF push-button switch is pressed to position ON

Figure 3-1, Item2 AUTO Indicator Light Lights when heater runs in automatic mode.AUTO, RUN, and appropriate BURNER STA-TUS Indicators are illuminated simultaneouslyif heater is burning.

Figure 3-1, Item3

Figure 3-1, Item4

Empty Indicator Light

BURNER STATUSIndicator Lights

In case of using the cartridge tank, when thefuel is empty, EMPTY Indicator Light blinks.This Light is not provided with Monitor 41.

Light in accordance with heat output as fol-lows:Heat Output Light PatternHigh 8indicators-ONMedium High 6indicators-ONMedium Low 4indicators-ONLow 2indicators-ON

24



Figure 3-1, ItemS TEMP Indicator Light Lights when heater is running and DigitalWindow is showing the temperature.

Figure 3-1, Item6 AM Indicator Light

Figure 3-1, Item? PM Indicator Light

Figure 3-1, Items

Figure 3-2, ItemlO

Digital Display Indicates SET and ROOM temperature whenheater is running, and indicates time whenheater is Off.Indicates time and temperature for automaticoperation setting.

Figure 3-2, Item9 TIMER SELECTOR Displays set and current room temperatureCLOCK TEMP when heater is ON.position Displays current time (after time has been

programmed) when heater is OFF. Prior toprogramming, 88:88 is displayed on clock.NOTE: During routine heater operation, the

selector switch is normally set to thisposition.

CLOCK SETposition

Programs current time on Clock by use ofHOUR and MINUTE push-button switches.NOTE: Prior to programming current time.

Digital Display shows 88:88.IMPORTANT: Once current time has been

programmed, press the SETpushbutton switch with in 60seconds.Otherwise clock dis-play will revert to previouslyprogrammed time, if any.

Figure 3-2, Item11 1ST Position Programs first automatic heater operation.When programmed, heater automatically oper-ates at specified time and temperature (i.e. 6:00 a.m., 70T), if set for AUTO, providing thatheater has been set for automatic mode ofoperation.TIME, TEMP, HOUR(UP), MINUTE(DOWN) andSET push-button switches are used to pro-gram first operated time and temperature.IMPORTANT: Once time and temperature

have been programmed, theSET push-button switch mustbe pressed with in ISseconds.Otherwise, time and tempera-ture will revert to previouslyprogrammed time, If any.

When selector switch is set to this position, 1stpresently programmed time and temperatureare displayed.

Figure 3-2, Item12 2ND Position Programs second automatic heater operationas same as 1st position.

25


FIGURE AND ITEM NO

Figure 3-2, Item13

Figure 3-2, ItemH

Figure 3-2, Item15

Figure 3-2, Itemie

Figure 3-2, Item! 7

Figure 3-2, Item18

Figure 3-2, Item19

Figure 3-2, Item20

CONTROL OR INDICATOR. FUNCTION

3RD Position Programs third automatic heater operation assame as 1st position.

4TH Position Programs fourth automatic heater operation assame as 1st position.

TIME push-button This switch is used to set time and changeswitch display over.

TEMP push-button This switch is used set temperature andswitch change display over.

HOUR UP, Programs time or temperature.MINUTE DOWN NOTE: Each time push-button switch isrepetitive-action pressed, the digit advances in incre-push-button switch ments of one digit, If push-button is

pressed and held, the degits areadvanced repetitively.

SET push-button switch "Sets" time and or temperature.If this control is not pressed after time and ortemperature have been programmed, the timeand or temperature programmed (as indicatedby display window) will not be accepted, andwill revert to previously programmed time and/or temperature.

CLEAR push-button switch Erases programmed time and temperature.When cleared, time and/or temperature previ-ously programmed and displayed disappears)from window.IMPORTANT: Both current time and auto-

matically programmedtimers), temperature(s) willhave to be reprogrammed Ifelectrical operation Is inter-rupted by power failure or bydisconnecting heater plugfrom wall outlet. If this occurs,the heater will go into MAN-UAL mode of operation andmaintain room temperatureaccording to the setting tem-perature you've selected byusing the slide silector for thereset temperature at the lowerright hand side of the cabinet.

ON OFF push-button ON positi0n (push-button is "in")applies powerswitch to the unit. When this occurs, the RUN indica-

tor lights to indicate that heater operation hasbegun.OFF position (push-button is "out") removepower from the heater. All circuits-except forClock and Air Flow — are shut down.

26



Figure 3-2, Item21 AUTO push-buttonswitch

Places heater in automatic mode of operation.AUTO indicator lights to confirm automaticoperation.Assuming that the heater has been properlyprogrammed and heater is in ON position.heater will operate automatically.When pressed again, AUTO indicator goes outand then heater will operate in MANUALmode. During manual operation, the user turnsheater ON and OFF, at will.

3-4 PRE-OPERATION CHECK LISTAfter heater installation, but prior to Monitor heaterstart-up, inspect the system for operational readi-ness. The following check list specifies those itemsthat should be inspected on a routine basis:

, Check that the Monitor heater is plugged intowall outlet(120 Vac, 60 Hz)Verify that adequate supply of kerosene isavailable in fuel tankConfirm that fuel is free of water or othercontaminantsCheck fuel tank for good operating condition; itmust be free of rust, corrosion, and or leaksInspect Fuel Line for signs of leaks, looseconnections, cracks, air pockets or blockagesConfirm that Fuel Valves on Fuel Tank andFusible Link Valve are open so fuel can flowfreelyOutside dwelling, check area immediatelyaround Flue Pipe for combustibles or obstruc-tions to free air circulationInspect Air Line for cracks, loose connectionsor blockageCheck Exhaust Line for cracks, loose connec-tions or blockageAt rear of heater, verify that air flow to the AirCirculation Fan is not blockedInspect dwelling interior and confirm that imme-diate area near heater is free of combustibleand objects that might interfere with free airflow.Make certain that Heat Sensor is not exposedto drafts, direct sunlight, nor direct heat fromthe Monitor.Confirm that heater is level

If this inspection reveals any system deficiencies,correct the problems before operating the heater.

3-5 OPERATIONOperation of Monitor heater can be controlledmanually by the user, or run automatically by themicroprocessor.

Paragraphs 3-6 through 3-10 provide the details ofheater start-up, operation, and shutdown. Thecontrols and indicators illustrated by Figure 3-1 and3-2 are used to operate the system and to monitorthe heater's performance.

3-6 MANUAL HEATER OPERATIONOperation of the heater is under the direct control ofthe user (heater will not operate automatically). Theheater will, however, automatically respond tochanges in room temperature signaled by the HeatSensor to maintain the temperature of the room at acomfortable level.

NOTE: Resetting the Fuel Constant Level Valve isnecessary only if the heater is being start-ed for the first time, hasn t been used for anextended period of time, or if tank has runempty. If priming is unnecessary skip tostep 2.

STEM: Prime the HeaterGently press and release the Fuel Constant LevelValve Reset Lever four or five times.

STEP2: Select Manual OperationIf heater operation is in AUTO mode, press theAUTO push-button switch and change Auto toManual mode.

STEPS: Select Temperature SettingPress the TEMP push-button switch and presseither the UP or DOWN push-button switch to setthe digital set room temperature indicator to thedesired temperature, and then press the SET push-button switch.

27


IMPORTANT: In case no temperature is set, tem-perature will automatically be set atthe setting temperature selected byusing the slide selector for the resettemperature.

STEP4: Turn Monitor OnPress the ON OFF push button switch to positionON. The RUN indicator light illuminates to indicatethat power has been applied to the instrument andthe heater is cycled for manual mode of operation.

3-7 AUTOMATIC HEATER OPERATIONAutomatic operation is established by programmingthe time temperature settings for specific times. Ona daily basis, a maximum of four time temperaturesettings can be programmed.

If, subsequently, it should be desired to switch tomanual mode of operation, the changeover can bemade at any time.

Proceed with automatic mode of operation in thefollowing manner:

STEP1: Program Clock for Current TimeA. Position TIMER SELECTOR slide switch at

position CLOCK SET.B. Press HOUR push-button switch to program

current hour on the Clock.

IMPORTANT: Be sure to set clock for AM or PM,as appropriate.

NOTE: Both hour and minute digits on DisplayWindow are advanced in i-crements of oneby pressing the appropr ate push-buttonswitch one time for each digit: digits canalso be advanced repetitively by pressingand holding the appropriate push-buttonswitch.

C. Press MINUTE push-button switch to programthe current minute(s) on Clock.

D. Immediately after programming current time interms of hours and minutes, press the SETpush-button switch.

E. Place TIMER SELECTOR slide switch in posi-tion CLOCK TEMP and verify that time dis-played on Clock is the current time.

STEP2: Program the 1st Time TemperatureA. Slide TIMER SELECTOR slide switch to posi-

tion 1st.B. Press TIME push-button switch.

C. Press HOUR and MINUTE push-buttonswitches to program 1st desired time.

IMPORTANT: Be sure to set the clock AM or PM,as appropriate.

D. Immediately after programming the 1st desiredtime, press the SET push-button switch. Thisstep must be completed within fifteen secondsafter programming the time.

E. Press TEMP push-button switch.F. Press UP and or DOWN push-button switch(es)

to program 1st desired temperature.G. Immediately after programming the 1st desired

temperature, Press the SET push-button switch.This step must be completed within fifteenseconds after programming the temperature.

STEPS: Program the Remaining TimesWith the TIMER SELECTOR slide switch in theappropriate positions, program the 2nd, 3rd, 4thtimes as described above.

Be sure to press the SET push-button switch aftereach time is programmed.

IMPORTANT: Should heater power be interruptedby a power failure or by disconnec-tion of the power cord, heaterreverts to MANUAL operation, andall AUTO programming Is erased.

STEP4: Select Automatic OperationPress AUTO push-button switch. The AUTO in-dicator light will illuminate.

STEPS: Turn Monitor ONPress ON OFF push-button switch to position ON.The RUN indicator light will illuminate to indicatethat power has been applied to the heater.

From this point, heater operation is as follow exam-ple:

76 F

6:OOAM 9:OOAM 5:OOPM 10:OOPM

1 SffFl

68 F64 F

Example

3-8 REPROGRAMMING THE MONITOR HEATEROn occasion, it may be necessary to reprogram theMonitor.Reprogramming is performed as specified below:

28


STEP1: Reprogramming Current Time(if necessary)

A. Set the TIMER SELECTOR slide switch toposition CLOCK SET.

B. Press HOUR and MINUTE push-buttonswitches to program new current time. Setapplicable time by watching Clock display.

C. Press SET push-button switch.

IMPORTANT: If SET push-button switch is notpressed, current time will revert topreviously programmed time.

STEP2: Reprogramming Automatic OperationA. Set TIMER SELECTOR switch to appropriate

position (1st, 2nd, 3rd or 4th)B. Press TIME push-button switch.C. Press CLEAR push-button switch. Time dis-

played on window will disappear.D. Using HOUR and MINUTE push-button

switches program new desired time by watch-ing the Display Window.

E. Press SET push-button switch.F. Press TEMP push-button switch.G. Press CLEAR push-button switch. Set Temper-

ature displayed on Window will disappear.H. Using UP and DOWN push-button switches

program new desired temperature by watchingthe Display Window.

I. Press SET push-button switch.

3-9 HEAT SENSORHeat Sensor is located on the rear of the cabinet. Itis recommended to leave the sensor in its originalmounted position. However should relocation benecessary, choose a location for the sensor that isnot in the path of direct sunlight, drafts or the flow ofwarm air from the heater. Loosen the screw andrelease the sensor from the rear of the cabinet.Fasten the sensor to the wall with the screw.

3-10 MONITOR SHUTDOWNA simple one-step procedure is utilized to shutdownthe Monitor:

Press ON OFF push-button switch to position OFF;the RUN indicator will extinguish.

IMPORTANT: Once heater has shut down, it can-not be restarted until post-purge cy-cle has been completed. If ON/OFFswitch is left in position ON, Monitoroperation will automatically restartupon completion of post-purge.

3-11 OUT OF FUELDuring either manual or automatic operation ofheater, fuel in the tank may be depleted.

The Monitor (in case of using external fuel tank) isknown to be out of fuel when all of the followingsymptoms are present:

— Burner Status indicator lights blink.— Absence of flame (visually verified through view

plate on wall of Combustion Chamber).

STEP1: Turn Heater OFFPress ON OFF switch to OFF.

STEP2: Fill Fuel TankA. Close shut-off valve at outlet of Fuel Tank.B. Drain Fuel Tank (from bottom, if possible) to

remove all condensation, debris, and old fuel.C. Fill Fuel Tank with fresh, crystal clear kerosene.D. Upon completion of stepC, open shut-off valve

which was closed in stepA above.

STEPS: Turn Heater ONPress ON OFF switch to ON. Proceed with normalheater operation.

The Monitor 22 (in case of using capsule fuel tank)is known to be out of fuel as follows:

When the EMPTY indicator light illuminatesand flashes, a buzzer will sound for twentyseconds. The burner mode is changed to "Low"automatically, and then, the heater will shut offafter 30 minutes.

The remaining burning time is indicated at theDisplay Window.

Refueling:

STEP1: Turn Heater OFFPress ON OFF switch and wait 15 minutes for theheater to cool.

STEP2: Lin Out the Capsule Fuel TankOpen the tank cover and lift out the capsule fueltank.

Turn the tank upside down, and remove the fuelcap.

STEP3: Fill the Capsule Fuel TankFill the capsule fuel tank with fresh, crystal clearkerosene by using a siphon.

STEP4: Reinstall the Capsule Fuel TankReplace and tighten the fuel cap. To insure properfuel flow, be sure the cap is secured correctly.

29


Install the tank with the arrow pointing forward, andclose the tank cover.

STEPS: Turn Heater ONPress ON OFF switch to ON. Proceed with normalheater operation.

3-12 RECOVERY FROM A POWER FAILUREThe Monitor is equipped with an automatic resetfeature which restores (the manual mode of) opera-tion following interruption of power to the heater.Note, however, that a power-failure automaticallytriggers a cooling and purge cycle: routine operationwill automatically be resumed following purge cycle.

A switch to manual mode is automatic because theabsence of power to the microprocessor wipes-outthe programmed memory.

To recover from a power failure (automatic mode ofoperation), proceed as listed below:

STEP1: Program Current Time

STEP2: Program Automatic Time Temperatureoperation cycles.

STEPS: Return to Automatic operation.

3-13 RECOVERY FROM OVERHEAT CONDITIONThe Monitor is protected against damage resultingfrom an overheat condition by two 110"C (Monitor22), 115;C (Monitor 41) automatic reset thermostats.

In the event of an overheat the thermostats aretriggered to cut off the flow of kerosene to theBurner Pot, the flame is extinguished automatically,and user is alerted to the overheat condition byblinking of the Burner Status indicators.

To recover from an overheat condition, proceed asoutlined below:

STEP1: Turn OFF Heater

STEP2: Allow Monitor Heater to cool

NOTE: Be sure that heater is cool to touch.

A period of 30 to 45-minutes should be sufficient topermit heater to cool completely.

STEP3: Unplug HeaterDisconnect heater power cord from wall outlet.

STEP4: Check for Cause of Overheating

NOTE: Overheating is usually caused by objects

that impede free air circulation.

Look for debris and other obstructions at front ofheater, at Circulation Fan at rear of the heater, andat Flue Pipe tip outside dwelling.

STEPS: Remove Louver Assembly

STEPS: Clean Heater Interior

BEFORE PROCEEDING TO CLEAN HEATER, BESURE THAT HEATER INTERIOR IS COOL ENOUGHTO TOUCH.

With a clean, lint-free, damp rag or other appropriatecleaning material, wipe up all dust, dirt and debrisfrom exterior of cabinet, including exterior of Com-bustion Chamber and Heat Exchanger.

STEP7: Replace Louver Assembly

STEPS: Reconnect Monitor Heater Power Plug tothe Wall Outlet.

STEP9: Turn Heater ON

STEP10: Reprogram Heater Microprocessor

STEP11: Select Mode of Operation

CAUTION: If after the completion of recoveryprocedure, the heater overheatsagain, something is wrong '

Do not operate heater until prob-lem has been diagnosed and correeled.

3-14 RECOVERY FROM BLOWN FUSEAll electrical components of the Monitor heater areprotected against power overloads and electricalmalfunctions by two 2-amp fuses and a 10-ampfuse. Should fuse blow, the recovery procedure isoutlined below:

STEP1: Turn Monitor OFF

STEP2: Unplug heater

STEPS: Remove louver assembly

STEP4: Remove front cover

30

MONITOR HEATING SYSTEMSSection 3: O eration

NOTE: As the Frc jver of the Monitor 41 isconnected :ie Printed Circuit Board byLead Wires, pull the Front Cover to the frontside slightly and remove the Connector ofthe Lead Wires from the Printed CircuitBoard, and then, remove the Front Cover.

STEPS: Locate and replace fuse(s)

STEP6: Reattach front cover(In case of the Monitor 41, be sure thatthe connector is connected to the printedcircuit board.)

STEP7: Reattach louver assembly

STEPS: Plug heater power cord into wall outlet

STEP9: Turn Monitor ON

STEP10: Reprogram heater

STEP11: Program Automatic operation cycles (ifapplicable)

STEP12: Select Automatic operation (if appli-cable)

31


32

3-15 OPERATION CONTROL SYSTEM

M-41 OPERATION TIMING CHART

I/O

1

OPERATION SW

SENSOR SW

ROOM TEMP

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RELAY

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LED INDICATOR.

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33

M-22 OPERATION TIMING CHART

i/0

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LED INDICATOR

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MONITOR LED

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MONITOR HEATING SYSTEMSSection 4: Maintenance

4-1 INTRODUCTIONHeater maintenance is divided into two classifica-tions; periodic maintenance is required to maintainthe heater in good operating condition; correctivemaintenance is necessary to repair a malfunction.

4-2 PERIODIC MAINTENANCEThe Maintenance Schedule provided in Table 4-1describes the tasks that must be performed periodi-

cally in order to sustain the efficiency of the MonitorHeating Systems.

At the time of the demonstration or installation,heater maintenance should be discussed with theuser; emphasize that a clean heater and proper fuelare the keys to optimum heater operation andperformance.

Table 4-1 SUGGESTED MAINTENANCE ACTIVITIES

Activity Material

Check all fuel lines for leaks and 3 8" OD copper tubingloose connections

Inspect exhaust lines for leaks orloose connections

Check fuel for water and or othercontamination.If the capsule tank is used on theMonitor 22 the capsule tank filtershould be checked, cleaned orreplaced.

Remarks

Fuel lines must be secure and freeof leaks, Replace tubing whennecessary.

All exhaust lines must be coveredby a cloth insulation cover.

Fuel color should be crystal clear,if fuel is contaminated, see Cor-rective Maintenance procedure,paragraph 4-9,

Inspect Fuel Pipe for obstruction

Inspect electrical wiring forcracks, signs of deterioration, barewires and or loose connectors

| WARNING: ^^^ÛNPLUG HEATER BEFORE PRO-CEEDING. HEATER MUST ALSOBE COOL BEFORE STARTING.

Clean heater Clean, lint-free cloth and a mildnon-abrasive household cleaningagent. USE ONLY NON-PETROLEUM DISTILLATECLEANERS.

Wipe down exterior of heater cabi-net. Vacuum heater interior (ifnecessary).

Clean Air Circulation Fan (Monthly) Vacuumblades.

fan cage. Wipe fan

Inspect air lines for leaks or looseconnections.Inspect rubber Air Hose at rear ofheater.

Look for cracks, wear, or signs ofdeterioration; replace if necessary.

Clean fuel constant level Valvefilter. Inspect fusible link Valveinput fitting.Clean only if necessary, Varify thatheater is level.

Clean Kerosene Refer to paragraph 4-5. Procedureis described in paragraph 4-6.Check Leveling Guide.

34


Activity Material Remarks

Inspect Combustion Ring, FlameSensor Rod and Baffle.(Suggested frequency every 3years).

Clean all carbon deposits. Replaceif excessively worn or cracked.NOTE: If any gaskets are torn

when Components areremoved, the gasket mustbe replaced.

Clean Combustion Chamber (every3 years)

Vacuum all carbon deposits frominterior of chamber.

Inspect air holes in Burner Pot Use a small, stiff brush or a shortlength of soft copper wire to cleanany blocked holes.

Clean Igniter Scrape any carbon deposits fromigniter.

Check air line that interconnectCombustion Blower and Air Pres-sure Switch.

Replace air line that is worn, brokenor brittle.

Check for carbon build up in fuelinlet going into burn chamber (everyyear)CAUTION: If any obstruction is

felt remove igniterbefore proceeding.

Disconnect copper fuel line fromburn chamber and clear fuel inletline by reaming with a solid piece ofwire(such as copper,bailing wire.orcoat hanger) which should be ableto go in approximately 3" withoutobstruction.NOTE: Removing and retightening

burner fuel connectionmust be done when theburner cools down com-pletely. If it is done whenthe burner is hot, the weld-ing on the fuel joint maybreak. Fixing torgue forn u t ; 3 0 ^ - 4 0 k g - c m ( 2 6-35lb-in)

4-3 INSPECT EXHAUST AIR LINESVerify that all exhaust and air lines are free of leaksand loose connections, as specified below:

STEP1: Remove Protective Cloth

Remove cloth insulation cover(s) from all exhaustlines.

STEP2: Inspection of Exhaust Air LinesA. Visually inspect both air and exhaust lines for

obvious cracks, leaks or loose connections.Black carbon deposits may be evidence ofthese leaks.

B. Be sure that all lines are installed tightly and

securely, especially at joints.C. Turn heater ON.D, Carefully apply a small amount of soapy water

(with a paint brush) to the surface areas of theair exhaust lines.

Any leaks that may exist will be readilyidentified by the appearance of bubbles.

STEPS: Return to Operating ConditionA. Turn heater OFF.B. Dry all lines with paper towels.C. Repair any leaks that have been found (if

necessary, replace the tubing).D. Replace cloth insulation covers.

35


4-4 VERIFY IGNITER OPERATIONVisually inspect Igniter Operation

WARNING:

HEATER IS OPERATIONAL DURING THIS INSPEC-TION. AVOID DIRECT CONTACT WITH ANYHEATED OR ELECTRICAL COMPONENT.

STEP1: Prepare (or InspectionRemove Louver Assembly.

STEP2: Visual InspectionA. Turn heater ON.B. Look (downward) through window on the Com-

bustion Chamber. Verity that igniter is glowing,

If igniter does not glow, something is wrong.Refer to the Troubleshooting Chart in Section 6of this Service Manual to diagnose the problem.

CAUTION: If igniter is broken,do not operate the"ON OFF" switch button repeatedly.

STEPS: Reassembly of HeaterTurn the heater OFF and replace the Louver Assem-bly.

4-5 CLEAN FUEL CONSTANT LEVEL VALVE FIL-TER

Contaminants are trapped by the filter to preventthem from clogging the Fuel Constant Level Valve.

The filter, itself has a great number of small pores.Whenever a filter is torn or disfigured (enlargedpores), it should immediately be replaced.

Inspect and clean the filter as indicated by theprocedure below:

CLOSE FUSIBLE LINK VALVE ON M-22 OR CLOSESHUT-OFF VALVE OF THE EXTERNAL FUEL TANKON M-41 TO AVOID DRAINING ALL FUEL FROMTANKS.

NOTE: Power should be OFF during the perfor-mance of this procedure.

STEP1: DisassemblyA. Using a phillips head screwdriver, unscrew the

screws holding the rounded diamond-shapedcover plate at the bottom of the Fuel ConstantLevel Valve. Remove the cover plate.

NOTE: Position a six inch U shaped piece of metalor cardboard under strainer cover to drainfuel into a pan.

B Carefully remove the rubber gasket which islocated behind the cover plate.

STEP2: Inspection and CleaningA. Pull the filter straight out of the fuel reservoir.B. If the filter is dirty (but undamaged), rinse the

filter in fresh, clean kerosene to remove allparticles. Replace damaged filters.

C. To drain off upper portion of fuel constant levelvalve, back out Phillips head screw which islocated slightly above and to the left of filtercover plate. (See Fig4-1)

STEP3: ReassemblyA. Push the (new or cleaned) filter back into the

bottom of the fuel reservoir.B. Replace both the rubber gasket and the cover

plate. (Take care to properly align the screwholes in the gasket and cover plate).

C. Wipe up any spilled fuel.

M-41 M-22

Figure 4-1 CLEAN FUEL CONSTANT LEVEL VALVE

36


4-6 CLEANING FUSIBLE LINK VALVE INTAKE FIT-TING ON M-22

At periodic intervals, the fitting on the Fusible LinkValve should be cleaned to prevent any accumula-tion of foreign materials from clogging the inlet. Thisis accomplished as follows:

UNPLUG THE HEATER. POWER TO THE HEATERSHOULD BE OFF DURING THE PERFORMANCE OFTHIS PROCEDURE.

STEM: Close off Fuel SupplyA. Shut off fuel at the Storage Tank or remove fuel

from the fuel sump tank with siphon and syringeif using the capsule fuel tank.

B. Manually turn handle to close Fusible LinkValve.

NOTE: Place paper towels underneath the FusibleLink Valve to catch any spilled fuel.

STEP2: Clean ValveA. Loosen hex nut on Fusible Link Valve inlet

fitting at rean of the heater. Disconnect thecopper tubing which delivers the fuel from thestorage or the fuel sump tank.

B. Using a small, straight piece of wire carefullyand slowly ream-out the inlet fitting on theFusible Link Valve.

Avoid scratching the inside wall of the fitting.

With a cotton swab, wipe the interior area of theinlet fitting.

STEP3: Reconnect Fuel LineA. Reconnect the copper tubing to the intake

fitting and tighten the hex nut.B. Turn ON fuel at Fusible Link Valve and at

storage tank or fuel sump tank.C. Check for leaks.

4-7 CORRECTIVE MAINTENANCEThe two procedures below are remedies for verygeneralized types of operating difficulties.

4-8 REPLACEMENT OF FUSESA short circuit or similar electrical malfunction couldcause the fuse to blow. Troubleshoot the cause ofthe blown fuse.

Replace the fuse as follows:

DO NOT REPLACE FUSE WHILE POWER IS ON.

STEP1: Removal of FuseA. Unplug heater. Remove Louver Assembly and

Front Cover.

B. Remove the fuse from fuseholder on the PrintedCircuit Board.

STEP2: Installation of New FuseA. Install a new fuse into the fuseholder. The fuse

must be a 250-V, 2 amp or a 250-V, 10 amp typeas marked on the printed circuit board.

B. Replace the Front Cover and the LouverAssembly and plug the heater into the walloutlet.

IMPORTRNT: Whenever the heater is unplugged,the Microprocessor must be repro-grammed when power is restored.

4-9 FUEL CONTAMINATIONFuel contamination is often difficult to diagnose,even though it will adversely affect heater operationand performance. The best course of action to takewhen fuel contamination is suspected is to examineall of the system's fuel filters, beginning with the fuelstorage tank. If a Monitor Kerosene Lifter is part ofthe fueling system, examine and clean that unit sfilter, as well as the filter located in the Fuel Con-stant Level Valve. When it has been determined thatwater or some other contaminants have infiltratedthe fuel, the following action must be taken:

WARNING

BEFORE PROCEEDING FURTHER, UNPLUG THEHEATER.

STEP1: Remove ContaminationA. Shut OFF the fuel supply at the storage tank or

at the Fusible Link Valve.B. Drain off the contaminants from the fuel storage

tank or the fuel sump tank (M-22). Fill withfresh, clean fuel.

STEP2: Clean the HeaterA. Clean fuel constant level valve filter and filter

compartment.B. Remove the Louver Assembly and Solenoid

Pump on the constant level valve. Clean theSolenoid Pump filter.

STEPS: Reinstall Cleaned ComponentsA. Replace the components correctly and install

new gasket.B. Turn on the fuel at the storage tank and at the

fusible link valve, and apply power to the heater.If problem still exists and contaminated fuel issuspected it can be checked byA, Shutting off the fuel supply at the storage tank

and at the fusible link valve.B, Drain off fuel at constant level valve.C. Disconnect fuel line at back of heater and hook

up a 5 gallon quick tank with proven good fuel.D. Test run heater to see if problem clears up with

use of new fuel.

37

MONITOR HEATING SYSTEMSSection 5: Servicing

5-1 INTRODUCTIONServicing is required when the Monitor Heater is notrunning at proper efficiency. This section coverspossible causes and corrective procedures for effi-ciency loses.

Signs of improper heater efficiency and performancewould be:

— Yellowish lazy flame— Smoke from flue pipe exhaust— Heavy soot and carbon build up in combustion

chamber— Lowered heat output.

5-2 MEASUREMENT OF FUEL FLOW RATEFuel flow rates are preset and sealed. These ratesshould not and we recommend they do not bereadjusted.

5-3 REMOVAL OF WATER DEPOSITS ANDCONTAMINANTS FROM FUEL CONSTANTLEVEL VALVE AND FUEL LINES

NOTE: Disconnect the Monitor from power supply(unplug) before proceeding.

1. Use a syphon pump and a syringe to drain offany fuel in the fuel sump (in case of capsuletank use on the Monitor 22).

2. If using separate tank on the Monitor 22, shutoff fusible link valve. On the Monitor 41 shut offvalve of separate tank.

3. Bend a piece of sheet metal or cardboard into aU shape and place it under the fuel constantlevel valve strainer cover to drain bad fuel intoa 1-2 liter pan. (Figure 4-1)A. Remove strainer cover and drain.B. With strainer cover removed, inspect, clean

and or replace strainer if damaged.C. Remove drain port screw and drain.D. Replace strainer, cover and screw.E. Open fusible link valve or shut-off valve to

refill system with fresh crystal clear ker-osene.

F. Repeat steps 1-3 until all contaminated fuelis drained off.

4. Remove fuel feed pipe from burner pot andsolenoid pump, and drain fuel into pan.

5. Once lines are clear, reconnect fuel feed pipe,turn operation switch ON and start a test run.

NOTE: Removing and retightening burner fuelconnection must be done when a burnercools down completely. If it is done when a

burner is hot. the welding on the fuel jointmay break. Fixing Torgue for nut:30--40kg • cm(26~35ls.in).

5-4 CLEANING THE BURN CHAMBER & BURNERPOT

Under normal running conditions, soot will notdeposit in great quantities in side the burner, and alight covering of soot will not affect the performanceof the unit thus it need not be cleaned. However, ifheavy soot built up does occur the unit should beopened and cleaned.

The burner is assembled using gaskets to maintainits air tightness. If these gaskets leak, the extra aircan cause a serious soot problem and or exhaustgases to escape into the area being heated.

NOTE: If any gaskets are torn when componentsare removed.

If cleaning is necessary, use the following method:1. On the Monitor 22

A. Remove louver assembly.B. Remove front cover.C. Remove top cover and lead wire con-

nectors.D. Remove front bracket and top bracket to

cover combustion chamber.E. Remove combustion chamber cap.F. Remove service panel.G. Remove baffle from within combustion

chamber.H. Remove flame detector rod.I. Remove burner cap.

2. On the Monitor 41A. Remove louver assembly.B. Remove front cover and lead wire con-

nectors.C. Remove top cover.D. Remove front bracket to cover combustion

chamber.E. Remove service panel and chamber cap.F. Remove Flame detector rod.

3. Turn counter-clockwise to remove combustionring.

4. Use wire brush to clean inside of combustionchamber.Vacuum and wipe clean with a waste cloth.

5. If tar is present on the burner bottom, removethe tar by using a flat-bladed screw driver orwire brush,then clean the area by using avacuum cleaner etc.

NOTE: Make sure all air inlet openings are clear.


When cleaning the inside of the burner pot,remove the igniter and change the burner clothby the following procebure.

On the Monitor 22A. Apply glue(P Na8217) on the burner bottom

as shown in Figure5-1.

Figure 5-1

B. Put the burner cloth on the burner bottom,afterwards press and straighten out theburner cloth so that it is glued flat and evenon the burner bottom.

On the Monitor 41A. Apply glue arround the burner cloth as

shown in Figure 5-2.

Figure 5-2

B. As shown in Figure 5-3 and 5-4, insert theBurner Cloth narrow between the NozzleCollar and the Igniter Shield, then push theBurner Cioth, using your fingers or a screwdriver, so that it slips in under the NozzleCollar. Afrerwards press and straighten outthe Burner cloth so that it is glued flat andeven on the Burner bottom.

NOTE: In some cases, pulling out the Fuel Nozzleand Collar may make this procedure easier.

Figure 5-3 Figure 5-4

C. Apply glue at all 4 corners of Burner Clothas Shown in Figure 5-5.

Figure 5-5

NOTE: The Burner Cloth is not symmetrical inshape, therefore make sure to place it inthe correct position so that the wider sideof the cloth is at left side of the IgniterShield as shown in Figure 5-5.

9. Combustion ring may deform and deteriorateafter several years use and should be cleanedand inspected before reinstallation. If combus-tion ring is warped, has cracked or is deteriorat-ing excessively it should be replaced.

10. When reassembling the unit check that com-bustion ring is positioned whit the correct sideup and is sitting squarely on all three supportscrews(M-22) or pins(M-41) inside the burnerpot.

11. Reassemble by reversing the procedure foll-owed during disassembly.

39


NOTE Make sure the position of flame detector rod is centered between combustion ring and burner potbefore reassembling chamber cap.(See Figure 5-6)

Flame Detector Rod

Combustion Ring Assy

Burner

Pot -

_CombustionChamber

M-41: 4mm (0.16") or moreM-22: 3mm (0.12") or more

Figure 5-6

5-5 CLEANING THE FUEL INLETWhen cleaning the combustion chamber and theburner pot, the fuel inlet nozzle should also becleaned. This can be done as follows:

1. Disconnect copper fuel line at burn chamber.

Push a piece of wire (about the same size asthe I.D. of fuel inlet pipe) into the fuel inletnozzle.If obstruction is felt twist wire back and forth (tobrake up soot and carbon) so that wire ulti-mately penetrates igniter shield.

40

MONITOR HEATING SYSTEMSSection 6: Troubleshooting

Monitor 22/41 Resistance values

COMPONENT

Igniter {connector B B)

Power Transformer — Primary (connector H H)

Power Transformer -Secondary (connector L L)

Power Transformer - Secondary (connector M M)

Damper Solenoid (connector I I)

Resistor (connector G G)

Circulation Fan (M-41:WH & BK, M-22:RD & BK)

Circulation Fan (M-41:WH & GR, M-22:RD & YL)

Circulation Fan (M-41:BL & BK, M-22:GR & BK)

Circulation Fan (M-41:BL & GR, M-22:GR & YL)

Combustion Blower (M-41:WH & GR, M-22:BK & BK)

Combustion Blower (M-41:GR & OR)

Thermistor (connector Q Q, at 77 F)

Fuse 2A (read with fuse out)

Fuse 10A (read with fuse out)

Solenoid Pump (coil)

APPROX.M-22

16.8

97

824

1.3

4,600

68

310

365

270

210

22

-

10,000

0.1

0.01

688

OHMSM-41

12.7

97

824

1.3

4,600

91

120

190

260

200

78

92

10,000

0.1

0.01

695

DISCONNECT HEATER FROM POWER SOURCEBEFORE MAKING ANY RESISTANCE TESTS.

41


Monitor 22/41 Component Voltage Readings

COMPONENT

Thermistor

Thermistor

Air Pressure SwitchOverheat Protector Closed

Air Pressure SwitchOverheat Protector Open

Damper Solenoid

Solenoid Pump

Circulation Fan High Speed

Circulation Fan Low Speed

Igniter

Power Transformer(primary side)

Power Transformer(secondary side)

Combustion BlowerHigh Speed

Combustion BlowerLow Speed

Resistor

READING TAKEN AT

Q on PCB Sensor disconnected

Q on PCB Sensor connected

Connector J

Connector J

I on PCB

K on PCB

GR to BK BK to RD (M-21)BL to BK BK to WH (M-40)

YL to RD GR to YL (M-21)GR to WH BL to GR (M-40)

B on PCB

H on PCB

Connector LConnector M

f on PCB

F on PCB(RL3 is OFF)

G on PCB

AC

110

0

110110

110110

110

110

120

110

92(M-22)88(M-41)

18(lv1-22)22(M-41)

DC

5

1.6-3.3

105

105

11

42


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V ±

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i

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min.

(C.F.

43


GENERAL CHECKSla BOWM available in waJI outl»t?la Dower Plug MaorMd in wall outlet?Has there been a power interruption? [Display

Hot Circulation Fan Moppetf?la fuel in tank? Tank vahw opwi?Has Fuel ComUnl Lavel Valve Set Lever raiMd and loweredTIs Opention Switch on?

I Extinguished I—I It Fual constant LJ Ho. t-

soon aftor I | Lavet Value I I I -J

*-I Flame doe. LJ ^

fuel lira length

uFWi i '»'«•(. cf

unit placed

5. JpooHlameôuna^tâfri ^^^ l

| ri» not a faiture, but ie apJ to occuri \—

| REASON | | CORRECTIVE MESYMPTOM | | CHECK1 | I RESULT I I CHECK2 | | RESULT I I CHECK3 I I RESULT | | CHECK* I I RESULT.)

•I Failure ot ulenoiQ pi

Failure at circuit board.

J [sSS.."

Hi Piah OpenB| FMNltak.

Operation Butto

It Unplug net2 Ftemove at

or determii

3. Replaca ci

Cl Wiring.

|—^ Replace solenoid pump.

J-l-

I SYMPTOM 1 [ CHECK1 I j RESULT [ f CHECK2 J [ RESULT j | CHECKS [ [ RESULTJ [ CHECK4 [ [ RESULTj [ CHECKSj | RESULT [ | CORRECTIVE MEASURE

Combustion•noise i; mmifsoonaner

Igniting

la Igniting

ionn?( Usually 0.5-t

SYMPTOM CHECK1

The OvetheatThermostat isactivated

Is windowcurtain too !close to thefear of unit?

Is Circulation-Fan Guarddusty?

REASON CORRECTIVE MEASURE I

Curtain or other obstructioncovers circulation air inlet.

Obstacle covers circulatingair outlet.

Clean guard.

Keep curtain from unit.

Remove obstacle.

I rr • i-\H

Failure of RGB

Circulation fan failed.

Incorrect wiring.

HHH

Replace or check P.C.B

Replace Fan Motor.

Repair or replace wiring.

I

I

I

| SYMPTOM | | CHECK1

'*| No operation. | 3oe3 88:88 blink „^^_^^^_^^J 1 in the disp lay

1 window?

11 Plug m AC cord. 1

1 If problem is found to be in PCB,do not attempt to repair, replaceand send PCB thru your distrib-utor to MPI for repair.

| RESULT | CHECK2 |

— J NO l» is thwe l2Vdc at Kf1 1 TP3? 1

(On W-22)

i YBSi rTl ls there fuel? h

1 1Press the operationbutton switch toON pos tion.

CHECKS CHECK4 | | RESULT | | CHECKS "| | RESULT | REASON 1 [ CORRECTIVE MEASURE

|1

1I

(On M-22)

. '" 1^^^^ L

J 1 1 1 11 1 does output of Tps 1 1 1

turn tnto High f*om 1

1Remove the connector of operation ctf- \

T2 pin and T7 pin on PCB. |_

J^ No L— . |S temperature -pi No. I-M Does heater —-J Yes. 1—

U No 1—

Move the Timer Sele-

" '"' \

M m

J Failure of Trans- 1 I Replace franslormer.

J Failure of Diode i •— J Replace Diode.1 nA.r»7 ^^^^^

Failure of Capacitor |-- -_ ] Replace capacitor

H R I

1 Failure of Capacitor L^^J Replace capacitorn ca i __

Failure of comparatadClS' 1 1 Replace comparata.

^Failure of zener 1 1

. ^ -.-., li i 1 Replace zener diode,diode iZDlL | |

1 ai ure o Capacitor L^J Replace capacitor.

J Faikire o t rans is to , 1 1 neD,ace translslot

Failure of capacitor .J ReDlace caoac,tOf

iri7i 1

-J Failure of operation 1 Replace operation circuit board.1 Circuit boafd. ^^^ .

•4 Failure of resonator L^^J Replace resonator.

1 r 't 1

H Failure of resistor *"H R«P|ace 'esiBtor

J Failure of micro- 1 1 R

SYMPTOM | CHECK1

on preheat?

| RESULT

H NnNO.

CHECK2

at coil of relay

Does combustion

during prepurgeand igniting?

[ RESULT |

I y 11 r*

i ii ' Jij i

CHECKS

(3 there l2Vdc

RL4' during pre-purge and

switch, worfc noc-

(

| RESULT J | CHECK4

J Ii — 1 — r~

S

| RESULT | | CHECKS ] | RESULT |

L

_

L

REASON

orocsrasor IC1

Failure of IC3.

RL1 .

Fuse F2 open.

tgniter open.

iprocessor IC1 .

Failure of IC5.

RL4 .

blower

Incoirect wiring ofcomtMistion blower.

Failure of resistor

In correct wiringof resistor

pressure switch.

Rubber hose isblokad ondiscorrected.

Incorrect wiring.

~

—

—

—

U

~

.

—

~

CORRECTIVE MEASURE

R 1 ce 1C

Replace fuse.

Replace igniter

epiace crop ocessor.

Dlower

correct wiring.

Replace resistor.

correct winng.

1 Replace air press-ure switch.

Clear and orcorrect rubber hose.

Correct wiring.

I SYMPTOM I I CHECK1 I | RESULT | | CHECK2 | [ RESULT | | CHECK3 | [ RESULT | | CHECK4 [ | RESULT | | CHECKS | [RESULT ] REASON CORRECTIVE MEASURE

is there 12Vdcat coil of relayflL6 during

igniting.

• A Yas r™

H I* |-

Does solenoid

dunn, «„,„„,?

Is transistorQt ON during

•1 No rm

•4 Yes p-

i No i

-

L

-

-

-

-

Failure of relayRL6 .

Failure of diode02

Failure of solenoidpump.

Failure of fuelsupply parts.

1Failure of micro-processor ICl .

Failure of iCB

Failure of IC7

Failure of 1CIC6. IC3

Failure of resistoriR69l

1 Failure of transistor0,

Failure of diode(D13I.

^^^ Reoiace relay

• • J Replace diode.

— Replace solenoid pump

^^ Check fuel auoplyparts.

••J Replace microprocessor.

- -J Replace 1C.

1 — 1 Replace 1C.

i| Replace 1C.

M Replace resistor

_~^J Replace transistor

^~J Replace diode.

SYMPTOM CHECK4 [ | RESULT | [ CHECKS | | RESULT | | REASON ] CORRECTIVE MEASURE

^^^ ^^^^ ^^

r~ jIC2 $ pin.?

For testing purposes - A flame detector rod bypass circuit can be madeup. consisting of 2 insulated alligator ci ps. 2-6" pieces of nsulaied

These components are to be soldered together in sequence as shown in

Once the bypass circuit is made the unit is

comes on. the O and N pins are disconnected off the PCS and replacedwith the Bypass crcuit, The unit should then continue functioning asthougn it had a good flame inside tne burn chamber and sen/ice

(Note - warning after all tests are completed.replace original flame rod wires as it is a vital safety feature. ;

C^] H AyAvAv (^]

^\ CLIPS ^-^

1 1 1i 1

-

_

-

-

—

,R5 6 .7 8,. 1 —-.,„. 1

H ^~1

1

Fuse F3 open. | ' 1 ^Wace fuse.

Fmlure of capacitor _J R (ace capacitor.

Failure of resistor II Re(}|ace fas|3[or

;Rl.n.)2.l3.24.25i. \ 1

M l— — — _l___Zi! *

Fail.ira flf rBôlnf 1 1 nrDlOCO r(?5l3tOr

Failure of diode | 1 Replace diode.(D17) 1

Failure ol capacitcx 1 1 Replace cauacitw

Failuta of IC5 1 1 Beolace 1C.

Failure of mK.oproces.or. | | Replace microprocessor.

1 Failure of wiring for I J Correct wiring,flama sensor and around. 1 1

Incorrect installation — J Correct installation.

ConnectlOKfl rtor at g pins, andmen. set temperaturefrom Low to High.

Is circulation fanmotor able tochange 3peed?

I RESULT | { CHECKS | | RESULT | | REASON | | CORRECTIVE MEASURE

1 lC9.10.il .

_J Failure of resistor1 R63. 31 32.63.34

H Failure of solenoidpump.

MMK

Reolace 1C.

Replace resistor

Replace solenoid pump.

Failure of relayRL2 .

Failure of circulationfan motor

Failure of relayRL3.4.5 .

Failure of combustioiblower.

Failure of dampersolenoid.

Failure of resistor'R2,3).

Failure of capacitorIC9.IO).

( Failure of resiR41-

LJ Failure of cai| 'C11.C12-.

Failure of micro-processor.

-L Replace relay

H Replace circulalfan motor.

J-CJ-C

, _J Replace cI blower.

H Replace c3°'°"°'d-

Replace resistor

Replace capacitor.

-L Replace resistor.

Replace capacitor.

M Replace microproce-

_^


INDICATION OF FAILURE MODE

The Reason of Indication Trouble PointDigital Display

At pre-purge, Flame rod is sensing flame Flame sensing circuit, grounded

when there should be none. flame rod or pinched wire.c n iI- U I

c n cL U J

After power on, power supply to the micro-

processer timing circuit is incorrect.

Timer clock circuit bad or power

source to unit above or below

acceptable levels.

n ru u

At starting of operation, the circuit to drive Solenoid Pump control circuit

Relay RL6 of Solenoid Pump is mal-

functioning.

has a malfunction.

/ _// L

When unit is shut off either manually or

automatically, flame rod does not detect

flame out within 300 seconds.

Driving circuit of RL6 or excess

fuel in burner pot

54

MONITOR HEATING SYSTEMSection 7: Electrical SystemSchematics

55

TTT? si

MONITOR HEATING SYSTEMSection 7: Electrical SystemPrinted Circuit Wiring Diagram

CONNECTION OF LEAD WIRESOPERATION

anTIMER

SELECTOR TIME!TEMPI

TIME/TEMP SETCD a a

Panel Printed Wiring Board

RUN AUTO EMPTY BURNER STATUS TEMPi 1 i 1 i 1 / / / / / AM

I I I I I

Blower forCombustion

PowerCord

ResistorBlower forCirculation

FanThermostat

Junction Box

figure 7-1 Monitor 41

56

MONITOR HEATING SYSTEMSSection 7: Electrical SystemPrinted Circuit Wiring Diagram

CONNECTION OF LEAD WIRES

DC12V

HT)T8T9

123456

R

OPERATION SELECTOR T|MFa TIMEi i r i i i i i i1 — " — ' IbMPCD

Panel Printed Wiring Board

/TEMP SET=D a cID

RUM Airrn FMPTY BURNER STATUS TEMP

= = «= / / / / / AP"

Lamp Printed Wiring Board

SET ROOMJ~_r~

S

=T-

T1T?T3T4T5Tfi

abr,defg

Power Transformer

Klo o ol Main Printed

Wiring Board

Jfol

n

tojF fo] E

fo] [ojL°J G

c DD B H

M

Afo]|o|

BBlower forCombustion

ResistorBlower forCirculation

FanThermostat

, 1 Short' ' Terminal

cO

Empty Lamp Switch(Float Switch)

BL

1\L

>

' ^Heater 4-

"olt^

-»•E

PowerCord

Junction Box

figure 7-2 Monitor 22

57

MONITOR 41SERVICE PARTS LIST

MONITOR 41 SERVICE PARTS LIST

ITEMNO.

1

23456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354

PARTNO.640050196301630263036304634463056306635764016363635863116115640263546403635561196196631363146122612361766315616463526353640461246125640563506317634963566321632263236406632461446348636261346135620261686169620361726173

DESCRIPTION

SPILL TRAYLEGAIR SUPPLY HOSE (A)AIR SUPPLY HOSE (B)CONSTANT LEVEL VALVEC.LV.STRAINERSTRAINER GASKETFUEL PIPESOLENOID PUMPGASKET (1)BURNERBURNER CLOTHROPE GASKETHEATERGASKET (3)IGNITER BRACKETHEATER COVER PACKINGIGNITER COVERFLAME DETECTIVE PLUGPLUG PACKINGFL PLUG BRACKETGASKET (4)HEAT EXCHANGER ASSYGASKET (6)EXHAUST DUCTO-RING (P39)OIL SUMP PIPEJOINT SEAL PACKINGFUEL NOZZLEFUEL NOZZLE COVERBASE TRAY RETAINERWINDOW GASKETWINDOW FRAME GASKETWINDOW GLASSWINDOW BASE GASKETCHAMBER GASKETCOMBUSTION CHAMBERCOMBUSTION RING ASSYCHAMBER GAPCONDENSER (2.5 ^FD)BLOWER ASSYDAMPER SOLENOID ASSYSUCTION CASE A ASSYSEAL PACKINGMOTOR FOR COMBUSTIONPWB ASSYPWB SPACER CLIP (A)PWB SPACER CLIP (B)MICROPROCESSORRELAY (A)RELAY (B)BUZZERFUSE (250V 10A)FUSE (250V 2A)

ITEMNO.555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108

PARTNO.634061876204613263266343613663276152613760326139483360376138618662056206620762084004640764086145401440164006400848056147614860756330633163476332640964106411641261546155633763386413634561946197641463421148821682178219

DESCRIPTION

CAPACITOR (1.8 //FD)TR ARRAY (M54563P)IC3PHOTO COUPLER(IC9~~11)POWER TRANSFOPMERAIR LINEAIR PRESSURE SWRUBBER BUSHOVER HEAT THERMOSTATFAN THERMOSTATCORD CONNECTORJUNCTION BOX COVERPOWER SUPPLY CORDCORD BUSHINGLEVEL GUIDECARRYING HANDLESENSOR ASSYSLIDE SWITCH ASSYSLIDE SWITCH COVERSLIDE SWITCH PANELSLIDE SWITCH KNOBJOINT PIPEAIR DAMPER (E)AIR DAMPER (S)AIR SUPPLY HOSE ASSYEXHAUST OUTLET CAPAIR PORT 0 RINGPIPE HOLDERHOSE BANDAIR OUTLET CAPFLUE PIPE ASSYSLEEVE FLANGE SETFANCIRCULATION MOTORBLOWER GUARDWIRING GUARDUNDER COVERLOUVERCONTROL COVERFRONT COVERLAMP PANELSWITCH ASSYLAMP ASSYTOP COVERRESISTORCABINET ASSYUNION NUTWALL CLAMPSSCREW SET FOR FLUE PIPECARTON BOXCUSHION SETOWNERS GUIDETOUCH-UP PAINT(WHITE)GLUETOUCH-UP PAINT (GREY)

58

MONITOR HEATING SYSTEMEXPLODED VIEWS AND PARTS LIST

59

Touch-up Paint (White)

Glue

Touch-up Paint (Grey)

,1U2) Screw Set for Flue Pipe

Carton Box

Cushion Set

Owners Guide

MONITOR 41 EXPLODED VIEW

MONITOR 22SERVICE PARTS LIST

MONITOR 22 SERVICE PARTS LIST

ITEMNO.

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758

PARTNO.

6200501961016102610361046105610661896108610961106164611161126182611361146115611661956117619161186119619661206121612261236176612461256068606961266127618161286129613061316132620161346135620261686169620361726173617061876204613761076184

DESCRIPTION

SPILL TRAYLEGAIR SUPPLY HOSE (A)AIR SUPPLY HOSE (B)FUEL PIPEFUSIBLE VALVECONSTANT LEVEL VALVEC.LV.STRAINERSTRAINER GASKETSOLENOID PUMP PACKINGSOLENOID PUMPOIL SUMP PIPEJOINT SEAL PACKINGFUEL SUMPGASKET (1)BURNERBURNER CLOTHGASKET (2)GASKET (3)HEATERIGNITER BRACKETHEATER COVER PACKINGIGNITER COVERFLAME DETECTIVE PLUGPLUG PACKINGFL PLUG BRACKETGASKET (4)HEAT EXCHANGER ASSYGASKET (6)EXHAUST DUCTO-RING (P39)WINDOW GASKETWINDOW FRAME GASKETWINDOW PLATEWINDOW GLASSWINDOW BASE GASKETCOMBUSTION CHAMBERCOMBUSTION RING ASSYBURNER CAPBAFFLE ASSYCHAMBER GASKETCHAMBER CAPPOWER TRANSFORMERPWB ASSYPWB SPACER CLIP (A)PWB SPACER CLIP (B)MICROPROCESSORRELAY (A)RELAY (B)BUZZERFUSE (250V 10A)FUSE (250V 2A)CAPACITOR (1.5^FD)TR ARRAY (M54563P)IC3PHOTO COUPLER(IC9~11)CORD CONNERCTORAIR LINEAIR PRESSURE SWITCH

ITEMNO.

5960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116

PARTNO.

6136615161526163613948336037613861866205620662076208614061416142614361446160616161806192619340046209614540144016400640084805614761486149621062116154615561566212615861596179616561786177616262136345619462146197621561751148821682178219

DESCRIPTION

RUBBER BUSHOVER HEAT THERMOSTATFAN THERMOSTATAIR PACKING SETPOWER SUPPLY CORDCORD BUSHINGLEVEL GUIDECARRYING HANDLESENSOR ASSYSLIDE SWITCH ASSYSLIDE SWITCH COVERSLIDE SWITCH PANELSLIDE SWITCH KNOBBLOWER ASSYBLOWER MOUTH PACKINGDAMPER SOLENOID ASSYSUCTION CASESEAL PACKINGBLOWER GUARDCIRCULATION MOTORFAN BLADEWIRING GUARDWIRING HARNESS(FAN MOTOR)JOINT PIPEAIR DAMPER (S)AIR SUPPLY HOSE ASSYEXHAUST OUTLET CAPAIR PORT O RINGPIPE HOLDERHOSE BANDAIR OUTLET CAPFLUE PIPE ASSYSLEEVE FLANGE SETUNDER COVERLOUVERFRONT COVERSWITCH ASSYLAMP ASSYTOP COVERLAMP PANELFUEL TANK COVERFUEL TANK ASSYFUEL TANK CAPFLOAT SWITCHFLOAT SWITCH PACKINGOIL FILTERRESISTORCABINET ASSYUNION NUTWALL CLAMPSBASE TRAY RETAINERSCREW SET FOR FLUE PIPECARTON BOXCUSHION SETOWNERS GUIDETOUCH-UP PAINT(WHITE)GLUETOUCH-UP PAINT(GREY)

60

MONITOR HEATING SYSTEMEXPLODED VIEWS AND PARTS LIST

92

61

Screw Set for Flue PipeTouch-up Paint(White)

Glue

Touch-up Paint(Grey)

MONITOR 22 EXPLODED VIEW

Documents

MONITOR HEATING SYSTEMS Service Manualmonitorproducts.com/wp-content/uploads/Service manuals/M22... · MONITOR HEATING SYSTEMS Service Manual ... 1-22 Fusible Link Valve; 1-23 Fuel