OIL-FIRED INSTANT 25 CPR, SP AND SP/A MODELS - ELCO … 25/Archivio Instant 25/?file=LB762o... · Wall-mounted fan-assisted boilers USERS' INSTRUCTIONS OIL-FIRED INSTANT 25 CPR, SP

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ER

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NS

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NSWall-mounted fan-assisted boilers

OIL-FIRED INSTOIL-FIRED INSTANT 25ANT 25

CPR, SP AND SP/A MODELSCPR, SP AND SP/A MODELS

Energy-saving technology

LB762o - 08/07/1999

Energy-saving technology

CONTENTS:

- Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 3

- General points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag 3

- Hydraulic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 4

- Notes on boiler installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6

- Overall dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6

- Connection set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6

- Connection to system and main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6

- Installing the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 7

- Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 7

- Available head with standard pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 7

- Checking rotation of the circulation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 8

- Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 9

- Operation of the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 9

- Fuel supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 11

- Conversion of the pumps for single pipe systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 11

- Boiler supplied by lift pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 12

- Room ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13

- Snorkel connection for combustion air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13

- Connection of flue duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13

- Regulating combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13

- Standard jets fitted to installed burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13

- Operating cycle of the installed burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 14

- INSTANT 25 electrical diagram and installed burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 15

- Access to the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 21

- Dismantling the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 21

- Replacing the jet and position of the electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 22

- Maintaining and cleaning the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 22

- Exploded drawing of the heating control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 23

- Exploded drawing of the INSTANT 25 heater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 24

- Exploded drawing of the boiler jacket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 28

- Explosion of the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 29

pag. 3

Energy-saving technologyINSTANT 1F GASOLIO 25INSTANT 1F GASOLIO 25

GENERAL POINTS

The high-efficiency INSTANT CPR boiler is designed to meet all heating and domestic hot water heating needs. The unitis of unparalleled reliability and ensures safe operation, thanks to the extremely robust construction and use of fan-assistedburner technology.Particular attention has been paid to safety and quiet operation since this unit is designed mainly fordomestic use.The creation of an adequate draft through the combustion chamber and flue circuit by the burner fan prior toignition, as well as the room-sealed construction of the combustion chamber, guarantees the maximum possible level ofsafety.Domestic hot water is produced using a highly efficient braze-welded plate exchanger made from self-cleaning stain-less steel: the self-cleaning action is obtained by virtue of the special shape of the plates.

The INSTANT SP model (SP = no domestic hot water) is designed for domestic heating only, while the SP/A model provi-des central heating and also has an outlet for connection to a hot water storage cylinder.

INSTANT units can be connected to a room thermostat enabling automatic temperature control.

Warning: This boiler is designed to raise water to a temperature below boiling point at atmospheric pressure; it mustbe connected to a heating system and/or domestic hot water production and distribution unit, within the limits of itsoutput and performance specifications. Every other use of this equipment should be regarded as improper and the-refore dangerous.

The boiler must be installed by qualified professional fitters, in accordance with current standards and regulations onsafety.Faulty installation can cause damage to persons and property for which the manufacturer cannot be held responsible.

Oil-fired instant 25 CPR + SP + SP/ACE

type approval number

Rated heat output min/max kcal/h 15.000 ÷ 21.500

min/max kW 17,4 ÷ 25

Rated heat output min/max kcal/h 17.200 ÷ 23.740

min/max kW 20 ÷ 27,6

Max operating temperature °C 90

Max circuit pressure bar 4

Max hot water pressure (*) bar 6

Boiler capacity l 30

Quantity of hot water produced (∆t= 35°C) l/min 10,2

at maximum input (∆t= 25°C) l/min 14,3

Expansion tank l 10

Expansion tank precharge pressure bar 1

Electrical power supply ~V/Hz 230 / 50

Max rated power W 240

Gross weight kg 112

Diameter of air/flue ducts mm 80 ÷ 100

(*) = refers to model CPR

CPR = heating and instantaneous production of domestic hot waterSP = heating only

SP/A = heating and connection to external hot water storage cylinder

pag. 4

Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25

heat

ing

syst

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hot w

ater

out

let

cold

wat

er in

let

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ting

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em fl

ow

1

22A 2B

3

4

5

6

7

8

10 12

11 9

13

14

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fuel

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t

fuel

ret

urn

INSTANT 25 CPR

HYDRAULIC DIAGRAMS

INSTANT 25 SP

1 - boiler unit2 2 - burner2a - fuel solenoid-valve2b - fuel pump3 - fuel filter4 - expansion tank5 - circulation pump6 - boiler drain valve7 - automatic air vent valve8 - sensor housing9 - hot water exchanger10 - three-way flow assembly11 - enable microswitch12 - return assembly13 - filler valve14 - system safety valve

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uppl

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urn

heat

ing

syst

em fl

ow

1

4

59

10

6

7

8

3

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22A 2B 1 - boiler unit

2 - burner2a - fuel solenoid-valve2b - fuel pump3 - fuel filter4 - expansion tank5 - circulation pump6 - boiler drain valve7 - automatic air vent valve8 - sensor housing9 - safety valve10 - filler valve

pag. 5

Energy-saving technologyOIL-FIRED INSTANT 1FOIL-FIRED INSTANT 1F

1

13 14

153

4

5

6

8

9

7

11

12

10

M

B A

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To be carried out by the installer

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22A 2B

HOT WATER OUTLET

COLD WATER INLET

INSTANT 25 SP/A

1 - boiler unit2 - burner2a - fuel solenoid-valve2b - fuel pump3 - fuel filter4 - expansion tank5 - circulation pump6 - boiler drain valve7 - sensor housing8 - automatic air vent valve9 - safety valve10 - hot water cylinder11 - three-way solenoid valve12 - boiler thermostat13 - fuel shut-off valve14 - fuel shut-off valve15 - filler valve

pag. 6


OVERALL DIMENSIONS

Figure A details the dimensions of the boiler.Warning: a 400 mm. free space above the boiler should be allowed for maintenance.

CONNECTION SET (supplied with unit)

A wall-mounted galvanised steel backplate-template is provided to facilitate water connections and boiler positioning.

��

895

210

130123,5

465

600

346,5

ø 100

ø 80

flue

outle

t

air

inle

t

a - Heating system flow G 3/4b - Hot domestic water G 1/2c - Fuel inlet ø 17d - Fuel return ø 17e - Cold domestic water G 1/2f - Heating system return G 3/4

600 (boiler width)

266 65 65 7047 47

40

895

(boi

ler

heig

ht)

2

22

95

130

70 70460

55 55

a b

= =

d fc e

NOTES ON BOILER INSTALLATION

The boiler must be installed by professionally qualified fitters, observing UNI and CEI standards and following safety regu-lation procedures.Incorrect installation can cause damage to both persons and property, for which the manufacturer will not be held responsible.

N.B. It is advisable to install a drain outlet (with special 1/2" funnel) for boiler safety valves.

fig. A fig. B

a

bc

de

f

a

cd

e

f

Connection kit for INSTANT 25 CPR Connection kit for INSTANT 25 SP and SP/A

Fig. Cconnections referred to figure B.

INSTALLING THE BOILER

After mounting the template to the wall (fig. 1), hook boiler unit to backplate as shown in figure 2. Before connecting upthe boiler, clean carefully, removing any encrustations and eliminating any foreign bodies which might detract from the effi-

ciency of the unit. The unit should be installed in an accessible position for ease of cleaning. Suitable stopcocks should befitted on all inlet and outlet pipes. Once the boiler has been mounted on the wall, the water connections can be completed (fig. C page 6). Unit safety valvesmust be connected up to a suitable outlet.

MANUAL FILLER

The INSTANT 25 boiler unit is equipped with a manual valve for filling the heating system. The INSTANT 25 SP and SP/A boiler (no domestic hot water) is provided with an attachment (on the backplate) inclu-ding a heating system filler valve for connection to the water supply, .The filling operation should be done slowly so that the air can escape through the series-mounted automatic air-vent valve,as well as through any other valves installed in the heating system.The filling pressure for the boiler when cold is indicated on the boiler pressure gauge on the boiler control panel and mustbe between 1 and 1.2 bar. This should be checked periodically.If the boiler pressure falls below the minimum value described above, the user must restore pressure by opening the valve.

ELECTRICAL CONNECTION

The boiler is connected up using the plug (ref. A) located at the bottom of the unit.

IMPORTANT: The boiler unit must be connected to the electrical power supply following the existing legal safety stan-dards. The supply cable must have a minimum section of 1mm2 for lengthsof up to 2 metres, or 1.5mm2 for greater lengths.Electrical connection must include a section switch with a gap between con-tacts of at least 3 mm. so as to guarantee unit isolation from the power sup-ply.

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lift fro

m here

pag. 7

Energy-saving technologyOIL-FIRED INSTANT 1F OIL-FIRED INSTANT 1F

S3

T2

T1

NL1

S3

T2

T1

NL1

230V

50

Hz

Lock out

(room thermostat)Return

Output

Negative

Earth

Positive

Boiler connection plug

A

AA

X X

- position the bracket (supplied) in the selected location;

- using a spirit level, check that the bracket is horizontal;

- drill the backplate fixture holes at location A: use plugs of suitable size and strength when fixing the bracket to the wall;

- position pipes and following the indications on the lower bracket; the template can be removed by breaking along the perforated line (axis x-x). Fig. 2Fig. 1

pag. 8


CHECKING ROTATION OF THE CIRCULATION PUMP

IMPORTANT: Check before proceeding that neither the pump nor the waterare boiling and take necessary precautions to prevent possibility of injury fromscalding or damage in the event of leaks.The pump is interlocked to the minimum temperature thermostat and will beshut off temporarily whenever the boiler water temperature falls below a mini-mum.Bleeding the circulation pump:

- loosen the plug A and bleed out any air;- expect water to drip from the cap opening after air bleeding and take pre-

cautions to prevent any ensuing damage to otpump components;

- retighten the plug A.Freeing a seized pump:

- remove plug A- try to rotate the impeller using a screwdriver inserted into the slot on the shaft, taking care not to damage the slot;- replace plug A, checking that there is no leak.

STARTING UP THE CIRCULATION PUMPBefore turning the appliance and pump on, make certain that the system is filled with water and has been properly bled.Circulation pumps may be noisy when starting up for the first time; this can be caused by a small quantity of air trapped inthe circuit. Follow bleeding procedure as above.

N.B. After a long period of inactivity, for example the summer period, the pump may seize. To free it, follow the proceduredescribed above.

AVAILABLE HEAD WITH STANDARD PUMP

0,0 0,5 1,0 1,5 2,0 2,5

1

0

2

3

4

5

6

Hea

d (m

c.a

.)

Flow rate (m3/h)

V1 V2 V3

pag. 9


OPERATION OF THE BOILER

Use of 0-I switch (all models) and ✹ - ❄ selector (CPR ed SP/A)

In the 0 position the switch isolates the boiler from the power supply; in position I the control panelis connected to the power supply. In the ✹ position the ✹ - ❄ selector ensures that the boiler produ-ces only domestic hot water; in the ❄ position the boiler can deliver central heating and domestichot water, with hot water taking priority.

CPR AND SP/A MODELSWINTER OPERATION (production of domestic hot water and central heating water, hot water taking priority).

Set the selector to the ❄ symbol (winter operation).In the CPR model, the boiler switches on and starts up in central heating mode, raising and maintaining the water tempera-ture in the boiler to the temperature set with the boiler thermostat; the pump starts up whenever the temperature reachesthe value set on the minimum temperature thermostat. When the room thermostat contacts open, the heating cycle is com-pleted. If hot water is drawn off, the boiler will automatically switch to hot water production when there is a demand forhot water (e.g. if a tap is turned on); the temperature of the hot water in the boiler is controlled by the domestic hot waterthermostat.

✹ ❄

0 I

1 2 3 45

67

8

9

T.A.S. TMINIMA

INSTANT

1

7

2 3 4 5 6

8

910CONTROL PANEL

3

RESETTING THE SAFETY THERMOSTAT

Unscrewand remove

hood.

LEGEND

1 – Temperature and pressure gauge2 – Push button for resetting the flame failure device. In the event of the burner being stopped by the flame detector safety device,

the push button will light up; to restart the burner, depress the button.3 – Safety thermostat with manual reset; this cuts in to stop the burner when the water temperature in the boiler exceeds the set

value. Thermostat is reset manually by depressing the button located beneath the protective cover. 4 – Circulation pump indicator.5 – Boiler on/off switch.6 – Summer-winter selector (CPR and SP/A models only).7 – Boiler thermostat: regulates the temperature of the water in the boiler with the burner in operation or on standby.8 – Fuse9 – Minimum-temperature thermostat: maintains boiler water temperature above set value. When the boiler temperature falls below

minimum unit circulation pumps are switched off.10 – Domestic water thermostat (models CPR and SP/A): controls the boiler temperature when domestic water is in use. This is diffe

rent to the temperature of the boiler during heating or standby phases.

✹

❄

0

I

pag. 10


In the SP/A model the boiler will start up in hot water mode to meet the temperature set with the cylinder thermostat; theboiler temperature is regulated by the hot water thermostat. When the set temperature has been reached, the three-wayvalve will switch to heating and the boiler temperature is regulated by the boiler thermostat. When the room thermostatcontacts open, the heating cycle is completed.

SIMULTANEOUS DEMAND FOR HEATING AND HOT WATER (CPR MODELS)

If there is a demand for hot water while the heating is on, the boiler will automatically switch to hot water production (hotwater has priority over heating).

WARNING: in order to ensure the availability of hot water at any time, as well as safe and trouble-free operation of theequipment, it is advisable not to switch off the unit completely using the 0-I switch (for example at night) but to adjustthe room thermostat (or timer/thermostat) or position the season selector to ✹ (Summer).

SUMMER OPERATION (DOMESTIC HOT WATER PRODUCTION ONLY)

Selector set to ✹In the CPR model, the boiler switches on and starts up by raising and maintaining the water temperature set with the boilerthermostat. It will relight automatically if the water temperature falls below the temperature set with the thermostat. In theSP/A model, the boiler starts up in response to the temperature set with the boiler thermostat.

PLEASE NOTE: in order to ensure the availability of hot water at all times, a well as safe and troublefree operation ofthe boiler, it is advisable not to switch off the unit completely using the 0-I switch.

SP MODELS

WINTER OPERATION (heating only)

Switch on the boiler (0-I switch in the I position).The boiler is switched on and, after performing a self-test routine, immediately starts to raise the water temperature to thevalue set on the boiler thermostat, guaranteeing that the temperature remains at the set value.The circulation pump starts up whenever the minimum set value is reached. Once the room thermostat contacts open, theheating cycle is completed.Use the boiler thermostat to raise or lower the water temperature.


pag. 11

H

H

ALIMENTAZIONE DEL COMBUSTIBILE H pipe length in metresmetres copper pipe bore = 8mm

0,5 381 42

1,5 482 50

2,5 543 58

H pipe length in metresmetres copper pipe

ø int. 8 mm ø int.10 mm

0,5 30 721 25 62

1,5 21 522 17 42

2,5 13 313 9 21

3,5 5 11

suction feed

gravity feed, supplied from thetop of the tank

SUNTEC

2 3

4

1 6

5

SR

P

P1

V

2

4

61

5

3

1 - Inlet2 - Pressure gauge and breather port3 - Vacuum gauge port4 - Pressure set screw5 - Outlet (pressure flow to nozzle)6 - Return flow

SUNTEC AS 47DANFOSS BFP 11 R3

FUEL SUPPLY

CONVERSION OF THE PUMP FOR SINGLE PIPE SYSTEMS

Warning: unlike double pipe systems, air is not automatically bled out in a single pipe system. It is therefore essen-tial to bleed the line on first operation as even a minimal infiltration of air in the fuel line will cause the burner toshut down.

SUNTEC PUMP

To convert the SUNTEC pump:1) Remove the socket screw A located inside the return

port.2) Blank off the return port with a metal plug and seal.

ertire la pompa SUNTEC:

DANFOSS PUMP

To convert the DANFOSS pump:1) Remove the pump cover and the internal filter2) Remove the screw located inside the return port as shown in the

figure on the left.3) Replace the pump filter and cover.4) Blank off the return port with a metal plug and seal.

OIL PUMP

pag. 12


WARNING: To guarantee smooth and efficient operation of the appliance, the difference in height between fueltank and burner should be no more than 3.5 metres.For greater differences it is essential to install a fuel lift pump (see diagram).Also, the condition and cleanliness of the fuel line filter should also be checked periodically, and thefilter replaced where necessary.

BURNER SUPPLIED BY LIFT PUMP

Hydraulic diagram

When it is impossible for the pump to draw fuel from the tankatmospherically, due to the boiler being sited on an upper storey, anauxiliary electric pump will need to be installed. The figure shows apossible arrangement, with two separate appliances supplied from asingle tank. The electrical connection is made such that the auxiliarypump will switch off when all burners are shut down.N.B. Maximum fuel supply circuit pressure MUST NOT exceed 2bar; the preferred operating pressure is 0.5 bar.

Electrical diagram

The auxiliary pump control must not be connected directly in paral-lel with the burner pump, as this would lead to excess currentdemand.A relay should therefore be installed, connected as shown in the dia-gram.

H230 V 50 Hz

M

M

pag. 13


NOZZLE TABLE

SNORKEL CONNECTION FOR COMBUSTION AIR SUCTION FROM THE OUTSIDE.

The serial Snorkel arrangement of the INSTANT GASOLIO thermal unit, allows to con-nect the burners air intake to the outside through an independent air duct, for the suction ofthe needed combustion air. Such an air duct must be sealed toward the inside room andrespect the following specifications:90° bend + 5m max of ø80mm duct length.

CONNECTION OF GAS FLUE

Combustion gases must be ducted to a chimney or to an anti-refouler equipped flue, con-nected to the outside, made in such a way so as to ensure a proper combustion and to avoidthe gases to get in contact with walls, peoples, animals etc.Said duct must be designed so as to be in depression and/or sealed, and made of suitable,smoke-corrosion proof materials. In every point, no matter the outdoor conditions, gas tem-perature must not be higher than the one of dew point. The max. length of gas flue is of 5 m+ a 90° bend.

NOTE: Flue ends must be located in such a way that exhaust gases might not causedamages in case of bad combustion.

ROOM VENTILATION

IMPORTANT: In case the INSTANT GASOLIO thermal unit is mounted without the Snorkel duct for outdoor combustion air suc-tion, it is necessary to make a hole toward outside of, at least, 180 cm2.

Sealed air box, soundproof, withserial SNORKEL connection.

REGULATING COMBUSTION

WARNING: Regulation of combustion must be performed by a professionally quali-fied and authorised technician. INSTANT 25 boiler are factory regulated by themanufacturer. In the event of further regulation being required, read the followinginstructions carefully.

1 - Light the boiler ("winter" setting) and set the thermostat to maximum tempera-ture.

2 - Position the air regulator slide according to flow rate (approximate).3 - Set the pump pressure to the desired value (or replace the oil nozzle, see table

below).4 - Analyse combustion and regulate air flow rate accordingly by adjusting air regu-

lator slide on the burner (having loosened the securing screw) as shown in thefigure.

The sample point must be close to the boiler and the flue connection (no farther than3 - 5 times the flue diameter from the boiler connection).

AIR

GPH Pump pressure (bar)

10 11 12 13 140.50 1,9 2 2,08 2,17 2,250.55 2,1 2,2 2,3 2,4 2,5

Oil flow rate (kg/h)

GPH Pump pressure (bar)

9 10 11 12 130.60 2 2,1 2,2 2,3 2,450.65 2,2 2,3 2,45 -- --

Oil flow rate (kg/h)

DANFOSS oil nozzles fitted as standard on installed burners

nozzle type angle atomizer type pump pressure

No preheater GPH 0,55 60° S 12 barPreheater GPH 0,65 60° S 10 bar

No preheater Preheater

min

max

1 - Vite di serraggio2 - serranda aria3 - manopola

1

2

3

1 - Locking screw2 - Air damper3 - Knob

pag. 14


Thermostats

Motor

Transformer

Solenoid valve

Flame

Cutout

Thermostats

Motor

Transformer

Solenoid valve

Flame

Cutout

Ta

Tb Tp

Ts

Tb

Ta Ts

Normal No flame

Preheater

Enable operationcontact

Thermostats

Motor

Transformer

Solenoid valve

Flame

Cutout

Preheater

Enable operationcontact

Thermostats

Motor

Transformer

Solenoid valve

Flame

Cutout

Preheating timeTa

Tp

TsPreheating time

Ta Ts

Tb

Ta

Tb

Normal No flame

OPERATING CYCLE OF THE INSTALLED BURNER

MINOR INSTANT burner

MINOR INSTANT burner with preheater

Ta = Pre-ventilation timeTb = Pre-ignition timeTs = Safety timeTp = Post-ignition time

Ta = Pre-ventilation timeTb = Pre-ignition timeTs = Safety timeTp = Post-ignition time

pag. 15


CE

M01

.007

YV

g

TV

BE

M22

.001

B

Yvg

-

Fue

l sol

enoi

d va

lve

B-

Fla

me

dete

ctor

MV

-

Fan

mot

orT

V

- B

urne

r ig

nitio

n tr

ansf

orm

er

L1T1

T2S

3N

L1L2

N

M 1 ~

MV

Bur

ner

elec

tric

al d

iagr

am

ELE

CT

RIC

AL

DIA

GR

AM

- IN

ST

AN

T 2

5/C

PR

boi

ler

with

oil-

fired

bur

ner,

no

preh

eate

r

pag. 16


CE

M01

.008

ST

CA

Yvg

–

Fue

l sol

enoi

d va

lve

B–

Fla

me

dete

ctor

MV

–

Fan

mot

orR

– R

esis

tor

ST

CA

– Ig

nitio

n en

able

ther

mos

tat

TV

–

Bur

ner

igni

tion

tran

sfor

mer

RY

Vg

TV

B

L1T1

T2S

3N

L1L2

N

M 1 ~

MV

TP

BE

M22

.002

ELE

CT

RIC

AL

DIA

GR

AM

- IN

ST

AN

T 2

5/C

PR

boi

ler

with

oil-

fired

bur

ner

and

preh

eate

r

Bur

ner

elec

tric

al d

iagr

am

pag. 17


~50

Hz

230V P

E L N

Z

LN

34

56

78

910

1112

L1T1

T2S

3N

L1T1

T2S

3N

L1T1

T2S

3N

L1L2

N

Q

ST

A

CC

SA

L

ST

SH

LCC

ST

min

ST

L

SU

HLB

TP

TP

TP

TP

12

34

56

78

910

1112

3132

LAND

IS L

OA

24

PT

h

BU

RN

ER

ELE

CT

RIC

AL

PO

WE

R IN

PU

T

Q

– m

ain

switc

h (f

used

)Z

–

supp

ress

orC

C

– ci

rcul

atio

n pu

mp

FU

–

fuse

PT

–

hour

met

erH

LB

– fla

me

failu

re in

dica

tor

SA

L –

line

switc

hS

TA

–

room

ther

mos

tat

ST

L –

boile

r th

erm

osta

tS

TS

–

safe

ty th

erm

osta

tH

LCC

– c

ircul

atio

n pu

mp

indi

cato

rS

Tm

in –

min

imum

tem

pera

ture

ther

mos

tat

CONNECTIONS TO BEMADE BY INSTALLER

CE

M01

.003

ELE

CT

RIC

AL

DIA

GR

AM

- IN

ST

AN

T 2

5/S

P b

oile

r w

ith o

il-fir

ed b

urne

r, n

o pr

ehea

ter

YV

g

TV

BE

M22

.001

B

Yvg

-

Fue

l sol

enoi

d va

lve

B-

Fla

me

dete

ctor

MV

-

Fan

mot

orT

V

- B

urne

r ig

nitio

n tr

ansf

orm

er

L1T1

T2S

3N

L1L2

N

M 1 ~

MV

Bur

ner

elec

tric

al d

iagr

am

~50

Hz

230V P

E L N

Z

LN

34

56

78

910

1112

L1T1

T2S

3N

L1T1

T2S

3N

L1T1

T2S

3N

L1L2

N

Q

ST

A

CC

SA

L

ST

SH

LCC

ST

min

ST

L

SU

HLB

TP

TP

TP

TP

12

34

56

78

910

1112

3132

LAND

IS L

OA

24

PT

h

BU

RN

ER

ELE

CT

RIC

AL

PO

WE

R IN

PU

T

Q

– m

ain

switc

h (f

used

)Z

–

supp

ress

orC

C

– ci

rcul

atio

n pu

mp

FU

–

fuse

PT

–

hour

met

erH

LB

– fla

me

failu

re in

dica

tor

SA

L –

line

switc

hS

TA

–

room

ther

mos

tat

ST

L –

boile

r th

erm

osta

tS

TS

–

safe

ty th

erm

osta

tH

LCC

– c

ircul

atio

n pu

mp

indi

cato

rS

Tm

in –

min

imum

tem

pera

ture

ther

mos

tat


CE

M01

.005

ELE

CT

RIC

AL

DIA

GR

AM

- IN

ST

AN

T 2

5/S

P b

oile

r w

ith o

il-fir

ed b

urne

r an

d pr

ehea

ter

pag. 18


ST

CA

Yvg

–

Fue

l sol

enoi

d va

lve

B–

Fla

me

dete

ctor

MV

–

Fan

mot

orR

– R

esis

tor

ST

CA

– Ig

nitio

n en

able

ther

mos

tat

TV

–

Bur

ner

igni

tion

tran

sfor

mer

RY

Vg

TV

B

L1T1

T2S

3N

L1L2

N

M 1 ~

MV

TP

BE

M22

.002

Bur

ner

elec

tric

al d

iagr

am

CE

M01

.004

pag. 19


~50

Hz

230V P

E L N

Z

LN

34

56

78

910

1112

L1T1

T2S

3N

L1T1

T2S

3B

4

B4

B5

T6T7

T8

B5

T6T7

T8N

L1T1

T2S

3N

L1L2

N

Q

ST

A

ST

B

CC

SA

L

ST

SK

AK

A

HLC

C

ST

AS

ST

min

SA

EI

ST

L

SU

HLB TP

TP

TP

EI

TP

TP

TP

12

34

56

78

910

1112

3132

LAND

IS L

OA

24

PT

h

CE

M01

.004


BU

RN

ER

ELE

CT

RIC

AL

PO

WE

R IN

PU

T

Q

– m

ain

switc

h (f

used

)Z

–

supp

ress

orC

C

– ci

rcul

atio

n pu

mp

FU

–

fuse

KA

–

KA

rel

ay c

onta

ctK

A

– re

lay

PT

–

hour

met

erH

LB

– fla

me

failu

re in

dica

tor

SA

L –

line

switc

hS

PF

–

flow

indi

cato

r pr

essu

re s

witc

hS

TA

–

room

ther

mos

tat

ST

B

– cy

linde

r th

erm

osta

tS

TL

– bo

iler

ther

mos

tat

ST

S

– sa

fety

ther

mos

tat

JE3V

–

3-w

ay m

otor

ized

val

veH

LCC

– c

ircul

atio

n pu

mp

indi

cato

rS

AE

I –

sum

mer

-win

ter

sele

ctor

ST

AS

–

dom

estic

hot

wat

er th

erm

osta

tS

Tm

in –

min

imum

tem

pera

ture

ther

mos

tat

M 1 ~

JE3V

ELE

CT

RIC

AL

DIA

GR

AM

- IN

ST

AN

T 2

5 S

P/A

boi

ler

with

oil-

fired

bur

ner,

no

preh

eate

r

YV

g

TV

BE

M22

.001

B

Yvg

-

Fue

l sol

enoi

d va

lve

B-

Fla

me

dete

ctor

MV

-

Fan

mot

orT

V

- B

urne

r ig

nitio

n tr

ansf

orm

er

L1T1

T2S

3N

L1L2

N

M 1 ~

MV

Bur

ner

elec

tric

al d

iagr

am CE

M01

.005

pag. 20


~50

Hz

230V P

E L N

Z

LN

34

56

78

910

1112

L1T1

T2S

3N

L1T1

T2S

3B

3L1

NL2

B3

L1N

L2

N

L1T1

T2S

3N

L1L2

N

Q

ST

A

ST

B

CC

SA

L

ST

SK

AK

A

HLC

C

ST

AS

ST

min

SA

EI

ST

L

SU

HLB TP

TP

TP

EI

TP

TP

TP

12

34

56

78

910

1112

3132

LAND

IS L

OA

24

PT

h

CE

M01

.006


BU

RN

ER

ELE

CT

RIC

AL

PO

WE

R IN

PU

T

Q

– m

ain

switc

h (f

used

)Z

–

supp

ress

orC

C

– ci

rcul

atio

n pu

mp

FU

–

fuse

KA

–

KA

rel

ay c

onta

ctK

A

– re

lay

PT

–

hour

met

erH

LB

– fla

me

failu

re in

dica

tor

SA

L –

line

switc

hS

PF

–

flow

indi

cato

r pr

essu

re s

witc

hS

TA

–

room

ther

mos

tat

ST

B

– cy

linde

r th

erm

osta

tS

TL

– bo

iler

ther

mos

tat

ST

S

– sa

fety

ther

mos

tat

JE3V

–

3-w

ay m

otor

ized

val

veH

LCC

– c

ircul

atio

n pu

mp

indi

cato

rS

AE

I –

sum

mer

-win

ter

sele

ctor

ST

AS

–

dom

estic

hot

wat

er th

erm

osta

tS

Tm

in –

min

imum

tem

pera

ture

ther

mos

tat

M 1 ~

JE3V

ELE

CT

RIC

AL

DIA

GR

AM

- IN

ST

AN

T 2

5 S

P/A

boi

ler

with

oil-

fired

bur

ner

and

preh

eate

r

ST

CA

Yvg

–

Fue

l sol

enoi

d va

lve

B–

Fla

me

dete

ctor

MV

–

Fan

mot

orR

– R

esis

tor

ST

CA

– Ig

nitio

n en

able

ther

mos

tat

TV

–

Bur

ner

igni

tion

tran

sfor

mer

RY

Vg

TV

B

L1T1

T2S

3N

L1L2

N

M 1 ~

MV

TP

BE

M22

.002

Bur

ner

elec

tric

al d

iagr

am

pag. 21


ACCESS TO THE BOILER

To gain access to the inside of the boiler, proceed as follows:

- Isolate the appliance from the electrical power supply and shut off the fuel valves- Detach the front panel F- Rotate the flap S downwards- Remove the screws V- Rotate the control panel P downwards- For cleaning purposes, remove the fixing screws and detach the top panel H- To access electrical parts, remove screws V1 and detach the protective housing I

��

✹✹

❄

0

T.A.S.

TMINIMA

INSTANT

I

��

V1

V2

H

P

F

P

I

S

✹✹

❄

0

T.A.S.

TMINIMA

INSTANT

I

V

V

S

F

DISMANTLING THE BURNER

To dismantle the burner from the boiler, proceed as follows:

- Isolate the appliance from the electrical power supply and shut off the fuel valves- Expose the interior as described above- Remove nut A and long nut B (fig. 1) using a spanner- Take out the burner (rotating in anticlockwise direction to facilitate removal)- The burner is provided with a rear bracket on which it can be supported once removed from the boiler, for ease of

servicing. Attach the bracket to the flange stud, securing temporarily with nut A.

When reassembling, check the burner insulating flange and replace if worn or damaged.

AB

A

C C

fig. 1 fig. 2

pag. 22


REPLACING THE NOZZLE AND VERIYING THE POSITION OF THE ELECTRODES

Use a suitable wrench when replacing the nozzle, taking care not to damage the electrodes (fig. A).After fitting the new nozzle, check the position of the electrodes; the dimensions must be as indicated in figure B in orderfor the burner to function correctly.

MAINTAINING AND CLEANING THE BOILER

To keep the boiler unit in good working order, clean as instructed below.

- Isolate the appliance from the electrical power supply and shut off the fuel valves- Expose the interior as described above- Remove the nuts D, detach the boiler top A and burner C from the boiler, and remove the baffles B- Using an appropriate brush and vacuum cleaner, clean the pipes as indicated and vacuum the dirt through the burner

aperture. If necessary, detach the bottom E by loosening internal nuts D1 and removing the external bolts F.

Make sure parts are reassembled in the correct order. Inspect all seals removed, and replace if damaged or worn. Make certain the baffles fit snugly in the pipes when reinstated.

3 mm

5/6 mm

2 ÷ 3 mm

A

D D

B

C

E

D1 D1

FF

Fig. A Fig. B

WARNING: before each heating season it is advisable to have the appliance cleaned and checked byan ECOFLAM authorised technician.

pag. 23


✹

❄

0

12

34

5

6

7

8

9

T.A.S.

TMINIMA

INSTANT

I

1

4 5

3

26

7

8

10

9

1112

3/Amod. SP

ref. description code

1 Temperature and pressure gauge G3.04

2 Circulation pump indicator E15.09/1

3 Winter/Summer selector * R10.02

3/A Plastic cap (SP Model) R10.13/1

4 Main 0/I switch R10.01

5 Fuse holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E8.02/2

Fuse E8.02

6 Boiler thermostat G8.15/1

7 Safety thermostat, manual reset G8.08/2

8 Control unit A1.17/1

9 Control unit housing A4.02

10 Control unit bracket CFA19.105/101

11 Minimum temperature thermostat G8.02

12 Domestic hot water thermostat* G8.02

EXPLODED DRAWING OF THE CONTROL PANEL

* CPR and SP/A models only

pag. 24


��

1

11

12

1026

2524

8

6

7

2

13

3

4

5

23

22

9

21

20

19

16

27

28

18

15

17

14

12/A

22/A

22/B

22/A

22/C

15/A

18/A

17/A

22/D

22/E

Part. A

A

22/F

EXPLODED DRAWING OF INSTANT 25 CPR

pag. 25



1 Boiler unit CFA03.058

2 Boiler insulation CFA07.082

3 Bottom boiler top seal J7.18/4

4 Bottom boiler top insulation CFA10.034

5 Bottom boiler top CFA04.303/001

6 Top boiler top insulation support net CFA04.096

7 Top boiler top insulation CFA07.79

8 Top boiler top CFA04.304/001

9 Baffles CFT05.034

10 Automatic air vent valve G2.07/1

11 Sensor holder CFA05.007

12 Thermostats:

boiler

safety

domestic hot water

minimum temperature

12A Thermometer

13 Drain valve S8.01

14 System flow pipe CFT01.102/001

15 Three way valve assembly GR.RUB.02

15A Microswitch assembly V1.39/2

16 Return valve assembly GR.RUB.01

17 High-pressure pipe CFT01.038

17A Low-pressure pipe CFT01.039

18 Plate heat exchanger G13.25/2

18/A O ring Y6.01/29

19 Circulation pump P1.42/3

20 System return pipe CFT01.101/001

21 Expansion tank G4.04

22 Burner of Kerosene 55-27-41/830

22/A Clip E22.06/1

22/B Flexible tube S9.51/2

22/C Collar CFA02.007

22/D Stainless steel terminal O1.1121

22/E

22/F KIT.INST

23 Burner insulation flange BFG02.013

24 Sight glass seal CFG01.027/1

25 Sight glass CFA05.015

26 Sight glass nut CFA05.014

27 Safety valve G2.10

28 Pressure sensor

pag. 26


��

1

11

12

1024

2322

8

6

7

2

13

3

4

5

21

20

9

19

15

16

182627

26

14

25

12/A

17

Part. A

A20/A

20/B

20/A

20/C

20/D

20/E

20/F

EXPLODED DRAWING OF INSTANT 25 SP - SP/A

pag. 27



1 Boiler unit CFA03.058

2 Boiler insulation CFA07.082

3 Bottom smoke hood seal J7.18/4

4 Bottom smoke hood insulation CFA10.034

5 Bottom smoke hood CFA04.303/001

6 Top smoke hood insulation support net CFA04.096

7 Top smoke hood insulation CFA07.79

8 Top smoke hood CFA04.304/001

9 Baffles CFT05.034

10 Automatic air vent valve G2.07/1

11 Sensor holder CFA05.007

12 Thermostats:

Boiler

safety

minimum

12A Thermometer

13 Drain valve S8.01

14 System flow pipe CFT01.104/001

15 Pump/boiler connecting pipe CFT01.106/001

16 Circulation pump P1.42/3

17 System return pipe CFT01.105/001

18 Safety valve G2.10

19 Expansion tank G4.04

20 Burner of Kerosene 55-27-41/830

20/A Clip E22.06/1

20/B Flexible tube S9.51/2

20/C Collar CFA02.007

20/D Stainless steel terminal O1.1121

20/E

20/F

21 Burner insulation flange BFG02.013

22 Sight glass seal CFG01.027/1

23 Sight glass CFA05.015

24 Sight glass nut CFA05.014

25 Pressure sensor

26 Ring nut 3/4' BFT01.108/1

27 Ring nut 1/2' BFT01.109

pag. 28


✹

❄

0

T.A.S.

TMINIMA

INSTANT

I

3

2

1

4

7

9

10 8

65

3


1 Boiler frame CFA09.103/012

2 Top panel CFA12.050/018

3 Side panel CFA12.028/018

4 Upper cross member CFA19.107/001

5 Bottom panel CFA19.104/012

6 Lower cross member CFA19.101/001

7 Control panel protective housing CFA12.202

8 Control panel CFA12.201

9 Front panel CFA12.026/018

10 Flap CFA12.048/018

EXPLODED DRAWING OF INSTANT 25 CPR, SP AND SP/A CASING

pag. 29


MIN

OR

INS

TA

NT

25

1

2

3

242314

15

18

1619

2221

4

5

13

126

79

10

8

11

17

25

29

31

30

pag. 30


MIN

OR

R IN

ST

AN

T 2

5

20

1

2

3

242314

15

18

1619

20

2221

4

5

13

126

79

10

8

11

17

27

26

28

25

29

31

30

pag. 31


MINOR INSTANT 25 MINOR R INSTANT 25

ref. description code code

1 Cast burner casing BFF04.318/011 BFF04.318/011

2 Burner casing cover BFC09.002/11 BFC09.002/11

3 Ignition transformer T1.23/2 T1.20

4 Fan rotor BFV10.001/001 BFV10.001/001

5 Motor flange BFF03.005/001 BFF03.005/001

6 Capacitor C1.07/8 C1.07/8

7 Electric motor M1.10/3 M1.10

8 SUNTEC fuel oil pump

DANFOSS fuel oil pump P1.21/3 P1.21/3

9 SUNTEC core

DANFOSS core V4.12/1 V4.12/1

10 SUNTEC coil

DANFOSS coil V5.10/3 V5.10/2

11 Pump connector BFR01.103/001 BFR01.103/001

12 Flexible tube S9.52/11 S9.52/2

13 Fuel oil filter S1.06/1 S1.05

14 Duct BFC08.111 BFC08.111

15 Air intake BFC03.028 BFC03.028

16 Nozzle assembly GR.TT0101/041 -

17 Diffuser BFB01.005/002 BFB01.005/002

18 Ignition cable BFE01.301/1 BFE01.301/1

19 Nozzle assembly support rod BFA05.109/001 BFA05.005/001

20 Preheater assembly - GR.CR.009/5

21 Ignition electrodes BFE01.102 BFE01.026

22 Nozzle U1.0.75/60S U1.0.65/60S

23 Flame detector A2.07/1 A2.07/1

24 Flame detector mounting A2.08/1 A2.08/1

25 Nozzle holder GR.CR.009/2 BFC10.002/1

26 Seal - BFT04.013/1

27 Thermostat - E7.03

28 Fuel preheater element - R1.05/1

29 Air shutter BFS01.002/001 BFS01.002/001

30 External regulation plate BFS01.201 BFS01.201

31 Internal regulation plate BFS01.202 BFS01.202

ECOFLAM S.p.A. reserves the right to make such modifications to products as are deemed necessaryor useful without significantly altering the broad specifications.

Ecoflam S.p.A.via Roma, 64 - 31023 RESANA (TV) - Italy - tel. 0423/715345 r.a. - telex 411357 ECOFLA I - telefax 0423/715444

Documents

OIL-FIRED INSTANT 25 CPR, SP AND SP/A MODELS - ELCO … 25/Archivio Instant 25/?file=LB762o... · Wall-mounted fan-assisted boilers USERS' INSTRUCTIONS OIL-FIRED INSTANT 25 CPR, SP