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HiLine Vertical StackingFan-coil UnitsType HSS & KZZ

ARI 440 CUL Listed

Catalog C: 770-12

The McQuay HiLine SeasonMaker fan-coil air conditioning unitsare designed for use in multiple floor apartments, office buildings,hotels and other similar applications and require a minimumamount of floor space. Just one HiLine unit may do the job thatformerly required more than one conventional unit.

The results of many years of experience in the development,design and manufacture of fan-coil air conditioners have beenincorporated in the McQuay HiLine units to provide highly efficient,quiet performance; individual thermostatic control; simple, lowcost installation; application flexibility; and low maintenance andoperating costs with no sacrifice in room comfort, design, orappearance.

For the ultimate in design, performance, efficiency, flexibility ofapplication, and ease of installation and maintenance, look toMcQuay HiLine fan-coils.

Application flexibilityTwo distinct designs are available with the complete flexibilitynecessary for any application requirement.

• Low cfm design - The 300 through 800 cfm blow-throughconfiguration units are designed to meet individual room controlrequirements.

• High cfm design - The 1000 and 1200 cfm draw-throughconfiguration units are designed for multiple dischargearrangements so that one unit can serve more than one room.

Both designs are available for two-pipe and four-pipe systemswith single, double, triple and top discharge arrangements.Optional equipment is available to provide complete applicationflexibility.

McQuay HiLine fan-coil units are tested and rated in accordancewith Air Conditioning and Refrigeration Institute (ARI) Standard440 and certified in accordance with the ARI certification program.ARI certification assures you full rated performance and offersconfidence in unit selection.

HiLine fan-coil units are listed by Underwriters Laboratories ascomplying with nationally recognized safety standards for fan-coilair conditioning units.

“HI-F” and “SeasonMaker” are registered trademarks of McQuay International.“McQuay” is a registered trademark of McQuay International.

2000 McQuay International. All rights reserved throughout the world.“Bulletin illustrations cover the appearance of McQuay International products at the time of publication and

we reserve the right to make changes in design and construction at anytime without notice.”

Ratings Certified ByThe Air Conditioning

& RefrigerationInstitute

ARI certification, U.L. and CUL listing

McQuay SeasonMaker® HiLine fan-coil units

CUL Listed

Page 2 / Catalog 770

8/04

Catalog 770 / Page 3

McQuay International’s Rep Tools microcomputerfan-coil selection program is available to provideoptimal fan-coil unit selection. The computerprogram will select the most economical unit sizeand coil option to meet the specification. Theprogram capabilities include hot and chilled water,hot and chilled water with glycol, electric heat, andunit external static pressure.

To operate the Rep Tools software, the userneeds a microcomputer using Windows 3.1 orhigher. McQuay will provide the software to run thefan-coil selection program.

Contact your nearest representative for a copyof the Rep Tools software or for a fan-coil selectionthat meets the most exacting specifications.

Computer fan-coil selection program

Contents

Nomenclature

ARI certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2Computer fan-coil selection program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3Unit design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5Design features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6,7Optional features and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Application considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-12HiLine selection data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13ARI approved standard ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15Electric heat capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16Dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-21Engineering guide specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22,23

Product CategoryF=Fan Coil

Product Identifiersee box below

Design Series1=A Design2=B Design3=C Design4=D Design5=E Design

VoltageA=115-60-1B=200-60-3G=230-60-1I=230/460-60-3J=265-60-1L=575-60-3Q=115/230-60-1Z=Not applicable

Coil Options (Not available on all prod.)A=Std. CapacityC=Lo-FlowD=Three Row CW/HWJ=Six Row CW/HWK=Std. Cap. w/Full 2nd Drain PanN=Lo-Flow Coil w/2-Way ValveP=Lo-Flow Coil w/3-Way ValveQ=Lo-Flow Coil w/2-Way Valve DeluxeR=Lo-Flow Coil w/3-Way Valve Deluxe

Nominal CFMS02=200S03=300S04=400S06=600S08=800etc......

F TSF 1 S03 A A① ② ③ ④ ⑤ ⑥

CHB Cabinet Unit Heater, BasicCHF Cabinet Unit Heater, FloorCZA Horiz. Lrg. Cap Belt w/ Cab. - Field Inst. motorCZC Horiz. Lrg. Cap Belt w/ Cab. - Low H.P.CZH Horiz. Lrg. Cap Belt w/ Cab. - High H.P.HSS Hi-line Series Vertical UnitHZA Horiz. Lrg. Cap Belt w/o Cab. - Field Inst. MotorHZC Horiz. Lrg. Cap Belt w/o Cab. - Low H.P.HZH Horiz. Lrg. Cap Belt w/o Cab. - High H.P.KZZ Knock Down Hi-line w/o ValvesSCD Horiz. Lrg. Cap Direct w/ Cabinet

SHD Horiz. Lrg. Cap Direct w/o CabinetTSB Vertical Unit w/o CabinetTSF Veritical Unit w/ CabinetTSS Vertical Unit w/ Metal Slope TopTPF Vertical Unit w/ Tamper Proof Accy’sTSC Horiz. Unit w/ CabinetTSH Horiz. Unit w/o CabinetUDH Vertical Unit HeaterUDX Vertical Unit Heater w/ Explosion Proof MotorUHH Horiz. Unit HeaterUHX Horiz. Unit Heater w/ Explosion Proof Motor

PRODUCT IDENTIFIER

①

②

③

④

⑤

⑥


To Meet Individual Room Requirements

FAST, SIMPLE INSTALLATION -Simply stack one unit above the other,sweat the couplings to the risers andconnect the power. The unique non-stop slip couplings require only oneperson for setting and connecting.

CABINET - Heavygauge galvanizedsteel. Fully insulatedfor quiet operation.

COILS - High efficiency typefor full rated capacity. ARIcertified.

REMOVABLE CHASSIS -All components aremounted on a singleremovable chassis so thata different capacity chassiscan be installed in thesame cabinet should futureneeds require it.

MOTOR & FAN ASSEMBLY -Quiet, energy efficient, permanentsplit capacitor motors andcentrifugal fans for low soundlevel. Fan housings are of a splittype design or have separate inletrings to allow easy removal of thefan motor.

FILTER - Easily accessible by simpleremoval of return air grille panel.

OPPOSITE HAND UNITS - Two adjacentroom units can be connected to a single set ofrisers and still retain individual roomtemperature control. Twin units must be joinedin the field. Reverse piping for same handunits not available.

RETURN AIR GRILLE PANEL -Heavygauge steel with stamped grilleand attractive Antique Ivory finish.Available as an accessory.

ACCESS & SOUND BAFFLEPANEL - Insulated galvanized steel.Easily removed for complete accessfor service.

CONTROLS - Face mounted, plug-in type,combination 3-speed switch and thermostat.Thermostat electrical box is adjustable for wallthickness. No wiring required.

DISCHARGE ARRANGEMENTS -Single, double, triple and topdischarge arrangements areavailable.

RISERS - Factory cut 104" long.No on-the-job cutting required.Supply and return risers havefactory installed sweat ballvalves and are factory insulated

Low cfm design (300 thru 800 cfm)

LOW SOUND LEVEL OPERATION - The low cfm design features aquiet, energy efficient motor and fan assembly, carefully located withina fully insulated cabinet to provide low sound level operation.NEUTRAL UNIT SHOWN

(Risers in back)


High cfm design (1000 thru 1200 cfm)

For Multiple Discharge Arrangements

SPECIALLY DESIGNED FOR HIGH CFM PERFORMANCE -These draw-through type units are ideal for luxury hotel andcondominium type buildings where multiple dischargearrangements with a common return air location, high cfmpeformance and quiet operation are required.

MOTOR & FAN ASSEMBLY (Notshown) - Quiet, energy efficient,permanent split capacitor motorsand centrifugal fans, mounted in thedraw-through position with acommon return air location, providehigh cfm performance with lowsound level.

COILS - High efficiency type forfull rated capacity. ARI certified.

RISERS (Not shown) - Factorycut 104" long. Supply and returnrisers are factory insulated. Theunique non-stop slip couplingsrequire only one person for unitsetting and connecting.

ACCESS & SOUND BAFFLE PANEL (Notshown) - Easily removed for completeaccess to internal controls, motor and fanassembly for service.

FILTER (Not shown) - Easily accessibleby simple removal of return air grille panel.

CONTROLS - Face mounted, plug-intype, combination 3-speed switch andthermostat. Thermostat electrical box isadjustable for wall thickness. No wiringrequired.

CABINET - Heavy gauge galvanized steel.Fully insulated for quiet operation.

DISCHARGE ARRANGEMENTS - Single,double, triple and top dischargearrangements are available.

RETURN AIR GRILLE PANEL -(Similar to return air grille panelshown on page 4.) Heavy gaugesteel with stamped grille andattractive Antique Ivory finish.

LEFT HAND UNIT SHOWN(Risers in left)

OPPOSITE HAND UNITS - Two adjacentroom units can be connected to a single set ofrisers and still retain individual control of eachunit. Twin units must be joined in the field.Reverse hand piping for same hand units notavailable.

SWEAT BALL VALVES - are factorymounted on coil.


Unit configurationUnit sizes S03 through S06 feature a blow-through designwith completely removable chassis. The motor, fan assembly,coil(s), drain pan and valve packages are mounted on acompact chassis which slides out through the return air grilleand access panel.Unit sizes S10 and S12 feature a draw-through design. Filter,drain pan and drain line are accessible by removing the returnair grille. Controls, valves, motor and fan assembly areaccessible by removing the access panel.

Knock-down unitThe KZZ knock-down unit configuration, available for unitsizes S03 through S08, allows installation, leak testing andinsulation of the risers and stubouts prior to the unitplacement. Risers can be field provided or factory suppliedand shipped to the jobsite before the units. After riserinstallation, the bottom half of the unit is set in place.Connections are then made to the supply, return and drainrisers as well as the power supply. The top half of the unit isinstalled and the thermostat harness is plugged in.

Control systemsA wide variety of fan and valve cycle control systems isoffered for remote or unit mounting. Unit mounted controlsoffer the ultimate in installation ease. A combination 3-speedswitch and thermostat with sensing bulb is field mounted onthe face of the unit by simply plugging it into the receptacle onthe thermostat box. The thermostat electrical box isadjustable for any wall thickness up to 37/8".Valve cycle control systems in both unit mounted and remotewall mounted configurations are available for 2- and 4-pipesystems. Fan cycle control systems are available for 2-pipesystems. Relays are furnished for all control systems involvingelectric heat. Automatic and manual changeovers arefurnished when required by the control system.

Efficient, quiet fans and motorsThree-speed, permanent split capacitor motors coupled withDWDI forward curved direct drive fans provide efficientoperation. Motors have sleeve bearings, oilers and inherentautomatic reset thermal overload protection. Unit sizes S03through S04 have a two-piece fan housing with integral scrolland inlet. Unit sizes S06 through S12 have a heavy-gaugesteel fan housing with integral scroll and separate inlets. Allfan wheels are statically and dynamically balanced. Efficientfans, PSC motors, resilient motor mounts and a fully insulatedcabinet provide quiet operation.

Design features for high performanceand low operating cost

TelescopingThermostat Box

Plug-in Field Mounted Thermostat

Fan and Motor Assembly

SizesS03 & S04

SizesS06 -S12


Field installed risersSupply and return risers of type “L” copper are provided withclosed cell, flexible foam insulation. Standard drain risers arePVC. All copper risers are factory cut to 104" in length. Non-stop slip couplings and insulation for supply and return risersand stop type couplings for drain risers may be orderedseparately. Insulation meets or exceeds current flammabilityclassification UL94. The knock-down unit is supplied withoutrisers with an option to have risers factory supplied to theabove specifications for field installation. On S03 throughS08, sweat ball valves are included with factory risers.

High performance coilsTwo-pipe system units have a standard cooling/heating coil.Four-pipe system units have a standard cooling coil and aone row heating coil. All coils are seamless copper tubes in astaggered pattern and feature the patented HI-F rippled andcorrugated aluminum fins for high heat transfer efficiency.Full depth collars are drawn in the fin stock for accuratecontrol of fin spacing and completely cover the copper tubesto lengthen coil life. Copper tubes are mechanicallyexpanded into the fin collars to provide a positive primary tosecondary surface bond. Manual air vents on coils areprovided. Ball valves on supply and return lines are providedat the coil on S10 and S12 models. Coils are positioned forrapid condensate drainage, balanced airflow and full ratedcapacity. Unit capacities are ARI certified.

Valve packagesTwo- and three-way motorized valves along with ball handvalves and flow metering devices are available.

Fast, low cost installationField installed labor is minimized by the unit's design, riserslip couplings, and unit mounted controls. Units arecompletely factory assembled and wired and have individualthermostat controls. Risers are factory cut to 104" in lengthand insulated. Riser couplings and insulation are factoryavailable. Installation is accomplished by simply stacking theunits one above the other floor-by-floor, sweating thecouplings and risers together, and connecting the power.Only one person is required for installation because the slipcouplings eliminate the requirement for perfect unitalignment with the swedged riser joints of othermanufacturers.

Twin unitsTo reduce installed cost, two units of opposite hand on eachfloor can share a set of supply, return and drain risers.Individual thermostat control is retained by each unit. Unitscan be placed side-to-side, or side-to-back.

Riser, Slip Coupling and Insulation

Optional Valve Package Components

Motorized Valve

Automaticchange-over control

Ball Valve

P/T Plug

“Y” Strainer

Flow ControlDevice

Motors115/60/1 and 265/60/1 motors are available. All motors are 3-speed permanent split capacitor type with sleeve bearings,oilers, resilient mounts and automatic reset internal overloadprotection.

Electric heatA specially designed optional electric heat unit is available toprovide supplementary heat between seasons or full electricheating. All heaters are protected by automatic reset high limitthermal cutouts. Service access to electric heaters is throughthe return air grille and access panel for unit sizes S03 throughS08 and through the discharge grille for unit sizes S10 andS12.

CoilsHigh capacity low flow heating/cooling coils are standard.Separate heating coils are available for 4-pipe systems. Allcoils are furnished with manual air vents.

RisersSupply and return risers of type “L” copper in nominal 3/4", 1",11/4", 11/2", 2" and 21/2" diameters are available with 3/4" thickfactory installed closed cell flexible foam insulation. Drain riserstype “L” copper in nominal 3/4" or 11/4" diameters are alsoavailable.

Fresh air dampersA motorized, two-position fresh air damper kit is available forfield mounting in one of three locations. A manual fresh airdamper kit is also available. Outside fresh air must betempered before entering the unit if freezing conditions areexpected.

Return air grillesReturn air grille options include the standard stamped return airgrille or an optional bar type grille. Both grilles aremanufactured of heavy-gauge steel and coated with anelectrostatically applied baked-on Antique Ivory finish. Aplaster frame is standard to provide easy access for filterreplacement.

FiltersOne inch throwaway filters are standard.

Discharge arrangements and grillesTwo sizes of aluminum single deflection or double deflectiongrilles are available. Grilles may be field mounted on the panelopposite the riser and on one or both panels adjacent to therisers. A top discharge opening is also available.

Line-of-sight baffleA line-of-sight baffle is available for applications involving twoopposing discharge openings.

Electric Heat

Cooling Coil

Fresh Air Dampers

Discharge Grilles

Single Deflection

Double Deflection

DischargeArrangements


Optional features and accessories

5. Both HiLine units can belocated away from anoutside wall to form acurtain cove, or built intoa room divider. It’s easyto conceal the units in acorner or build them intoa wall to serve two ormore rooms. And, ofcourse, the creativearchitect will think ofmany more applicationsfor this versatile unit.

Installing The HSS(Basic) Unit:

1. The McQuay HiLinebasic unit is simply liftedinto place directly abovethe unit on the floorbelow.

1. Unlike the basic unit, theKZZ unit allows installa-tion, leak testing andinsulation of the risersand stubouts prior to unitplacement.

Installing the KZZ*(Knock-down) Unit:

2. The bottom half of theunit is set in place, andthe supply, return anddrain risers are connec-ted to the unit along withthe power supply.

3. The top half of the unit isthen easily installed andthe factory suppled ther-mostat harness is con-nected.

4. Finishing the installationis the same with eitherthe standard HSS modelor the knock-down KZZmodel.

2. This unit has been set inplace, ready to acceptthe unit above.

3. Next, using factoryavailable slip couplings,connect the prefabri-cated supply, return anddrain risers together,connect the power, andyour basic installation iscompleted. Wall boardcan be applied directly tothe unit.

4. After the unit has been“furred-in” and the roompainted, it takes only afew minutes to attach thegrilles and plug in thethermostat.

5. When the installation iscompleted, the unitblends in beautifully withthe surrounding decorand takes up a minimumof floor space.

*The “KZZ sectioned cabinet for room air conditioning unit” is covered under U.S. Patent No. 4,426,120.


Piping systemsReverse Return Piping Systems - If possible, the same sizeHiLine units should be installed one above the other all theway up each stack in the building. This way, each unit in thestack requires the same amount of water. No balancing isrequired, because the loop of water from each unit travels thesame distance and has the same pressure drop.

Our experience indicates that the reverse return pipingsystem, Figure 1, is the most popular one because thesystem tends to be self-balancing. Only one express riser isrequired to gather the return water, at the top or bottom of thebuilding, and return it to the boiler or chiller.Direct Return Piping System - In the direct return pipingsystem, Figure 2, each unit must be individually balanced toobtain proper water flow through each unit.

Expansion and contractionProper allowance must be made for pipe expansion.Provisions have been designed into the HiLine unit to allowfor plus or minus 1" of riser movement. For riser systemswhere the movement exceeds ±1", provisions must beprovided in the riser system to restrict the movement. As arule of thumb, 100 feet of copper pipe will expand 1" whenexposed to a 100˚F temperature difference. See Figure 5 forthermal expansion of copper risers. The temperaturedifference is the difference between the temperature at whichthe piping is installed and the water temperature duringoperation. On a two-pipe system, this temperature differencebecomes even greater due to the change in watertemperature from cooling to heating.

One method of limiting riser expansion is by anchoringthe riser pipes at the center of the riser stack and allowing thepipes to expand away from the anchor point. Thus, a 200 ft.length would expand approximately 1" each way. Anothermethod is anchoring the riser pipes at the end and absorbingthe expansion with an expansion compensator. If anexpansion compensator is used, the pipe should be guided.In some situations, a combination of both methods may berequired. The risers must be secured at some point as theunits have not been designed to support the riser weight.

Number of floors per riserThe standard HiLine unit with service valves, expansionloops, etc., will operate at 250 PSI working pressure which isequivalent to a 35 to 40 story building.

Selection of riser pipingRiser piping should be selected based on economicconsiderations. Detailed information may be found in theASRHAE Handbook series. The guidelines offered in Figure 4are based on water velocity only. A water velocity of 2 FPS isconsidered to be the minimum requirement for entraining andcarrying air with water flow. Water velocities of over 8 FPSmay cause undue erosion of water pipe. Risers may be sizedon the highest water velocity that will not cause noise orerosion. We recommend that the water velocity in risers andunits fall within the range of 4 FPS to 6 FPS. Since HiLineunits have risers outside the unit cabinet and usually within apartition wall, noise should not be a problem. Riser sizesneed not be changed at every floor to accommodate flowchanges but may be carried at one size until water velocitiesfall outside the recommended ranges.

Contractor piping responsibilityFactory available copper riser couplings are non-stop type forease of installation. PVC couplings have stops. Fieldinstallation involves clamping the slip coupling in place andbrazing or sweat soldering it to the risers above and below.PVC couplings are field cemented to the drain risers.Reducing couplings, anchors and expansion compensators,if required, must be provided by the contractor.

Insulation to cover slip couplings is factory available andfield installed. Providing a good cement bond at the jointsbetween the field installed insulation and the factory installedriser insulation is the contractor's responsibility.

Fire stopTo assure building code compliance, a fire stop must beprovided by the contractor in the riser opening between floorsand between twin units serving adjacent rooms.

Application considerations


NOTES: 1. All control systems listed as 120 volt are also available for 265 volt service.

Unit

Remote Wall

Unit

Remote Wall

UnitRemote Wall

UnitRemote Wall

UnitRemote Wall

120V

120V120V

120V

120V120V

120V120V

120V120V

120V120V

Insulation limitationsUnder high humidity start-up conditions, care should betaken by utilizing a gradual pulldown to minimize sweating ofcabinet and/or risers.

Temperature controlA wide variety of fan and valve cycle control systems areoffered for McQuay HiLine units. Valve cycle control systemshave a higher first cost but offer significantly lower operatingcosts than fan cycle systems. Valve cycle control systemsprovide superior temperature control resulting in improvedoccupant comfort.

Both unit mounted and remote wall mountedthermostats are available. Unit mounted controls eliminatefield wiring to the thermostat and speed switch resulting inreduced jobsite labor. The thermostat sensing bulb is

positioned in front of the filter and the electrical connection ismade by simply plugging the thermostat into its receptacle inthe thermostat box. The thermostat electrical box is fieldadjustable for any wall thickness up to 37/8". Direct sunlightfalling on thermostats for either unit or remote mountedcontrol applications should be avoided.

Twin unitsEquipment and installation costs can be significantly reducedby designing a floor layout involving twin units. Twin units, ofopposite hand, are placed side-to-side, or side-to-back andshare a common set of risers. Individual thermostat control isretained by each unit. Twin unit risers have two sets ofstubouts to accept piping from both units. A short link of fieldsupplied copper tubing may be required depending upon wallthickness between units.


Figure 3. Typical Fan Cycle Control system Wiring diagram

SYSTEM CYCLE

FAN CYCLE, TWO-PIPE

VALVE CYCLE, TWO-PIPE

VALVE CYCLE, FOUR-PIPE

ELECTRIC HEAT RELAY &VALVE CYCLE, TWO-PIPE

INTERMEDIATE ELECTRIC HEATRELAY & VALVE CYCLE, TWO-PIPE

DESCRIPTION

Fan cycles from set speed to low on cooling and from set speedto off on heating.

Fan cycles from set speed to off on both heating and cooling.

Valve cycles with thermostat; constant fan operation.

Sequencing thermostat cycles valve on heating and cooling. Electricheater operates only in cooling phase when room requires heat.Valve cycles with thermostat; constant fan operation.

Valves cycle with thermostat; constant fan; sequencing thermostat.

Sequencing thermostat cycles valve on cooling and electric heateron heating; constant fan.

COMBINATION THERMOSTAT ANDTHREE SPEED SWITCH

Table 1. Control System Options

FUNCTION

Auto

AutoManual

AutoManual

AutoManual

None

None

Auto

CHANGE-OVERLOCATION VOLTAGE


Figure 4. Type “L” Copper Riser Pressure Drop

Figure 5. Thermal Expansion of Copper Risers

AREA OUTSIDE OF RECOMMENDED DESIGN RANGE.

System designThe achievement of an efficient fan-coil system is dependentupon accurate system design and proper equipmentselection. Variations, limitations and control of fan-coilsystems, design conditions and design load calculations arenot described in detail in this catalog. More detailedinformation may be found in the ASHRAE Handbook series.

Prior to selecting the individual unit sizes, the designengineer must fix or determine the following factors:1. Inside and outside wet and dry bulb temperatures. 2. Method of introducing the ventilation.3. Wet and dry bulb temperatures of the air mixture entering

the unit coil.4. Total and sensible heat gains and losses of the area to be

served.5. Properties of the heating and cooling mediums. 6. Available electric power service.7. Any special design requirements of the building or system.

Computer fan-coil selectionThe capacity ratings presented in this catalog are providedfor initial unit selection only. Unit size selection should bedetermined by using the Rep Tools Fan-coil SelectionComputer Program. Water cooling and heating capacities,unit airflow, static pressure, electric heat, glycol solutions andjobsite elevation are all incorporated into the program toprovide the best possible selection. Consult yourrepresentative for a selection tailored to your application.

Unit sizes for the ideal system should be selected bycalculating the peak load requirements due to unusually highoccupancy or severe climatic conditions and with fanoperating at high speed. Ordinary day to day cooling andheating requirements are then achieved at low and mediumspeeds. Ventilation requirements should be considered alongwith the following to determine the proper unit size.

Cooling Coil Requirements - Having checked the minimumunit size to meet the ventilation requirement, the unit size isgenerally selected on the basis of matching the sensiblecooling capacity of the unit with the calculated requirementswhen operating at high speed.

The initial unit selection should be checked for air volumein the design system and the cooling capacities checked atthe actual operating conditions. While units selected on thebasis of sensible load will generally meet the total coolingload, total load should be checked in all cases.Coil Type - Standard low flow coils are available for all unitssizes to permit unit selections for optimum performance.

Low flow coils are designed to meet both the normalcooling and heating requirements while operating withreduced GPM and correspondingly higher water temperaturerises. Their use is enhanced by the lower first cost of bothriser piping and pump plus lower overall fan-coil unit andwater pump operating cost.Heating Requirements - Heating requirements for two-pipesystems are generally met by employing the same water flowrate as cooling and adjusting the entering hot watertemperature to obtain a matching unit heat output at low fanspeed. Four-pipe systems are generally designed byspecifying a design hot water temperature and adjusting theflow rate through the separate heating coil to meet therequired heat load with the fan operating at low speed.

Maximum water temperature in coils should be limited to200˚F (160˚F for HSS sizes S10 and S12), and should beadjusted to reflect outside temperatures.

Electric heaters are available for primary year-roundheating or intermediate between-seasons heat loads for two-pipe systems when chilled water is in the system. Unitshaving top duct discharge and electric heat must have adischarge duct face area equal to or greater than the topduct opening.

HiLine selection data



ARI approved standard ratings

UNIT SIZECOOLING CAPACITY ➁

WATER FLOW (GPM) WATER FLOW P.D. (FT-WC)(TOTAL BTUH) (SENSIBLE BTUH)S03 11000 7200 2.3 14.6S04 17000 11400 3.5 44.7S06 23000 16100 4.7 28.8S08 28800 20600 6.0 44.1S10 39600 26600 8.2 29.7S12 44900 30400 9.3 39.6

Table 2. Low Flow Coil Water Cooling Capacity Ratings ➀

NOTES:➀ Rated in accordance with ARI Standard 440. Cooling capacities based on 80˚F DB/67˚F WB entering air, 45˚F entering water, 10˚F water temperature rise

and high fan speed. See Table 7 for air volume capacities.➁ For cooling coil capacity ratings at conditins other than that listed, refer to the Rep Tools computer selection program or consult your McQuay

representative.

UNIT SIZEHEATING CAPACITY ➁

WATER FLOW (GPM) WATER FLOW P.D. (FT-WC)(SENSIBLE BTUH)

S03 21776 2.2 9.8S04 27596 2.8 22.1S06 38932 3.9 15.5S08 48229 4.9 22.6S10 65287 6.6 14.5S12 77078 7.8 20.8

Table 3. Low Flow Coil Water Heating Capacity Ratings ➀

NOTES:➀ Water heating coils rated at 70˚ F DB entering air, 140˚F entering water, 20˚F water temperature drop and high fan speed.➁ For heating coil capacity ratings at conditions other that that listed refer to the Rep Tools computer selection program or consult your McQuay

representative.

UNIT SIZEHEATING CAPACITY ➁

WATER FLOW (GPM) WATER FLOW P.D. (FT-WC)(SENSIBLE BTUH)

S03 12206 1.2 1.6S04 16355 1.7 3.5S06 22086 2.2 7.3S08 25783 2.6 9.6S10 40258 4.1 27.9S12 46626 4.7 39.6

Table 4. Separate Hot Water Coil Water Heating Capacity Ratings ➀

NOTES:➀ Water heating coils rated at 70˚ F DB entering air, 140˚F entering water, 20˚F water temperature drop and high fan speed.➁ For heating coil capacity ratings at conditions other that that listed refer to the Rep Tools computer selection program or consult your McQuay

representative.

NOTES:Air volumes based on 115/60/1 electrical services, normal unit features and dry coils.Medium and low speed air volume based on unit peformance in a system with tabulated external static pressure produced at high speed.

HSB UNIT SIZE SINGLE UNIT SINGLE UNIT TWO UNITS FOUR UNITS➀

NO PALLET WITH PALLET WITH PALLET WITH PALLETS03 155 205 380 720S04 160 210 390 740S06 175 225 420 800S08 180 230 430 820S10 256 306 585 1130S12 267 317 605 1180


EXTERNAL STATIC PRESSURE (INCHES H20)UNIT0.00 0.05 0.10 0.15 0.20 0.25 0.30SIZE

HI MED LO HI MED LO HI MED LO HI MED LO HI MED LO HI MED LO HI MED LOS03 339 258 183 311 243 173 281 222 159 249 197 140 — — — — — — — — —S04 408 310 221 397 298 207 384 284 193 368 268 178 350 252 160 — — — — — —S06 609 519 422 588 499 404 565 479 383 539 456 360 512 429 315 — — — — — —S08 798 621 452 781 606 440 759 590 428 736 574 416 712 556 402 686 535 386 — — —S10 1020 800 646 1000 780 630 976 761 614 950 741 598 923 720 581 895 698 564 868 677 547S12 1220 972 778 1192 954 765 1164 932 755 1137 910 748 1109 887 745 1080 865 747 1050 840 753

Table 5. Air Volume versus External Static Pressure.

Technical data

MODEL NUMBERNOMINAL MOTOR DATA AT HIGH SPEED

RETURN AIR MAXIMUM DISCHARGE115/60/1 265/60/1FILTER SIZE GRILLE SIZEAMPS WATTS AMPS WATTS)

S03 0.65 70 0.40 70 133/4” x 187/8” x 1” 16 x 12S04 1.30 146 0.45 120 133/4” x 187/8” x 1” 16 x 12S06 1.60 195 0.70 200 133/4” x 187/8” x 1” 16 x 12S08 2.40 314 1.10 290 133/4” x 187/8” x 1” 16 x 12S10 3.60 350 1.30 350 (1) 24” x 24” x 1” 24 x 14S12 4.80 498 2.10 500 (1) 24” x 24” x 1” 24 x 14

Table 6. Motor and Physical Data.

Table 7. Approximate HSS Shipping Weights (Lbs.)

NOTES:➀ Standard shipping arrangement.

HKD UNIT SIZE SINGLE UNIT, NO PALLET TWO UNITS, w/PALLET OUR UNITS, WITH PALLET➀

S03 155 380 720S04 160 390 740S06 175 420 800S08 180 430 820

Table 8. Approximate KZZ (Knock-down Unit) Shipping Weights (Lbs.)

NOTES:➀ Standard shipping arrangement.


120V/60/1 265/60/1

WATTS BTUH AMPS WATTS BTUH AMPS1000 3413 8.3 1000 3413 3.61500 5120 12.5 1500 5120 5.42000 6826 16.7 2000 6826 7.2

— — — — — —— — — 3000 10239 10.8

1000 3413 8.3 3000 3413 3.61500 5120 12.6 1500 5120 5.42000 6826 16.7 2000 6826 7.2

— — — — — —— — — 3000 10239 10.8— — — — — —

1000 3413 8.3 1000 3413 3.61500 5120 12.5 1500 5120 5.42000 6826 16.7 2000 6828 7.2

— — — — — —— — — 3000 10239 10.8— — — — — —— — — 5000 17065 18.1— — — — — —

1000 3413 8.3 2000 6828 7.21500 5120 12.5 — — —2000 6826 16.7 3000 10239 10.8

— — — — — —— — — 5000 17065 18.1— — — 6000 20748 21.6— — — — — —— — — — — —

2000 6826 16.7 3000 10239 10.8— — — 6000 20748 21.6— — — 8000 27304 28.8— — — — — —

2000 6826 16.7 3000 10239 10.8— — — 6000 20748 21.6— — — 8000 27304 28.8— = — — — —

UNIT SIZE

S03

S04

S06

S08

S10

S12

Table 7. Electric Heat Data.

*Electric heat voltage must match motor voltage.


NOTES:* With return air grille mounted on unit, dimension becomes 23/8".** Fire Stop: If required, must be provided by contractor.† Can be field adjusted to 37/8" for furred-in application.

NEUTRAL HAND UNIT SHOWN.Hand of unit determined by facing return air opening.

Risers on right = Right hand of unit.Risers on left = Left hand of unit.Risers on back = Neutral unit.

Dimensional data (inches)Model KZZ (Knock-down Unit) Unit Sizes S03 Thru S08 (300 thru 800 cfm)

ALL DIMENSIONS APPROXIMATE.CERTIFIED DRAWINGSAVAILABLE UPON REQUEST.

RISER 3/4 1 11/4 11/2 2 21/2 3

A 31/2 4 4 41/2 5 51/2 6

(TWO PIPE) B 131/2 14 14 141/2 15 151/2 16

(FOUR PIPE) B 17 171/2 171/2 18 181/2 19 191/2

Recommended Riser Hole Size in Floor (inches)

FIELD RISER LOCATION AND DISCHARGE OPENINGS: SEE PAGE 19 FOR DETAIL.





Dimensional data (inches)Model HSS (Basic Unit) Unit Sizes S03 Thru S08 (300 thru 800 cfm)




RISER 3/4 1 11/4 11/2 2 21/2 3

A 31/2 4 4 41/2 5 51/2 6

(TWO PIPE) B 131/2 14 14 141/2 15 151/2 16

(FOUR PIPE) B 17 171/2 171/2 18 181/2 19 191/2


Riser Location — HSS and KZZ Unit Sizes S03 Thru S08 (300 thru 800 cfm)

1 2 3 4 REPRESENT AIR DISCHARGE POSITIONS DETERMINED BY FACING RETURN AIR OPENING.

DISCHARGE OPENINGSWITH ONE OPENING ONLY, LOCATIONS 1 2 3 4 SHOULD BE 16" x 12".

WITH TWO OR MORE OPENINGS, LCOATIONS 1 2 3 4 SHOULD BE 16" x 6".





Dimensional data (inches)Model HSS (Basic Unit) Unit Sizes S10 Thru S12 (1000 thru 1200 cfm)




RISER 3/4 1 11/4 11/2 2 21/2 3

A 31/2 4 4 41/2 5 51/2 6

(TWO PIPE) B 131/2 14 14 141/2 15 151/2 16

(FOUR PIPE) B 17 171/2 171/2 18 181/2 19 191/2


Riser Location — HSS Unit Sizes S10 and S12 (1000 thru 1200 cfm)

1 2 3 4 REPRESENT AIR DISCHARGE POSITIONS DETERMINED BY FACING RETURN AIR OPENING.

DISCHARGE OPENINGS

WITH ONE OPENING ONLY, LOCATIONS 1 3 SHOULD BE 24" x 14"; LOCATIONS 2 4 SHOULD BE 16" x 14".

WITH TWO OR MORE OPENINGS, LCOATIONS 1 2 SHOULD BE 24" x 8"; ; LOCATIONS 3 4 SHOULD BE 16" x 12".

Engineering guide specificationsModel HSS (Basic Unit) Unit Sizes S03 thru S08 (300 thru 800 cfm)Furnish and install where shown on plans McQuay low cfm design HiLine SeasonMaker fan-coil units. Unit sizes, performance and equipment shall be astabulated in the schedule. Unit performance shall be substantiated by computer generated output data.

UNIT CONFIGURATION - Unit shall be (two-pipe)(four-pipe) system blow-through configuration with completely removable chassis. Filter, fan assembly, drainline and motor shall be accessible by removing the return air grille panel. Internal controls, service valves, drain pan and coil shall be accessible by removingthe access and sound baffle panel. Hand of unit shall be tabulated in the schedule.

CABINET - Cabinet shall be fabricated of heavy-gauge galvanized steel and fully insulated with 1/2" multi-density glass fiber. An insulated galvanized steelaccess and sound baffle panel shall completely enclose the coil section. The return air grille panel shall be heavy-gauge steel with a stamped (bar type) grilleand electrostatically applied baked semi-gloss finish and extend 5/8" in front of unit face.

PLASTER FRAME - A plaster frame shall be provided to hold the return air grille panel away from the wall when the unit is furred in. A snap-on return air grillepanel shall be provided with the plaster frame.

COILS - Units shall be ARI certified with standard low flow heating/cooling coils in two-pipe systems, or, standard low flow cooling coil plus one-row heatingcoil in four-pipe systems. All coils shall be seamless copper tubes in a staggered pattern with rippled and corrugated aluminum fins. Tubes shall bemechanically expanded into the fin collars for positive fin-to-tube bond. Coils shall have manual air vents and ball valves on the supply and return lines. Internalpiping shall allow for vertical riser expansion of ±1". Coil performance shall be as tabulated in the schedule. Coil shall be positioned to provide positivecondensate drainage.

FAN ASSEMBLY - Unit sizes S03 and S04: Fan housings shall be two-piece with integral scroll and inlets. Fan wheels shall be DWDI forward curvedcentrifugal direct drive type.

Unit sizes S06 and S08: Fan housings shall be painted steel with integral scroll and separate inlets. Fan wheels shall be painted steel DWDI forward curvedcentrifugal direct type.

All fan wheels shall be statically and dynamically balanced.

MOTORS - Motors shall be permanent split capacitor type (115/60/1) (265/60/1) with sleeve bearings, oilers, inherent thermal overload protection withautomatic reset and resilient mounts.

DRAIN PAN - Drain pan shall be galvanized steel with drain line and closed cell insulation on the external surface to prevent condensation.

SUPPLY & RETURN RISERS - Supply and return risers shall be type “L” copper (optional copper types and diameters shall be as tabulated in the schedule),with 3/4" closed cell flexible foam insulation factory installed. Slip couplings and insulation shall be factory available for field connection. Insulation shall meetor exceed current flammability classification UL94.

DRAIN RISER - Drain riser shall be PVC. (Optional copper types and diameters shall be as tabulated in the schedule). Stop type couplings shall be factoryavailable for field connection.

CONTROLS - Unit shall have a combination three-speed switch and thermostat with sensing bulb for field plug-in on face of unit and an adjustable thermostatelectrical box for any wall thickness up to 3 7/8" (wall mounted line voltage thermostat and three speed switch).

FILTERS - Filters shall be nominal 1" thick throwaway.

DISCHARGE GRILLES (OPTIONAL) - Optional aluminum (single deflection)(double deflection) discharge grilles shall be provided in sizes and positions astabulated in the schedule.

LINE-OF-SIGHT BAFFLE (OPTIONAL) - An optional line-of-sight baffle shall be supplied as tabulated in the schedule.

FRESH AIR DAMPERS (OPTIONAL) - Two-position (motorized)(manual) fresh air damper shall be factory available as tabulated in the schedule.

ELECTRIC HEAT (OPTIONAL) - Electric heating elements and controls shall be completely installed, wired and enclosed at the factory. Heating element shallbe fully protected by a high limit cut-out with automatic reset.

OPTIONAL CONTROLS & VALVES - Valve cycle control systems for two-pipe and four-pipe systems, two-way or three-way motorized valves and othercombinations of ball valves and automatic flow metering devices shall be installed as tabulated in the schedule.

TWIN UNITS (OPTIONAL) - Twin unit configuration, as tabulated, shall be such that two adjacent room units will be piped to a single set of risers and willoperate with separate controls on each unit.

Unit Sizes S10 & S12 (1000 thru 1200 cfm)Furnish and install where shown on plans McQuay high cfm design HiLine SeasonMaker fan-coil units. Unit sizes, performance and equipment shall be astabulated in the schedule. Unit performance shall be substantiated by computer generated output data.

UNIT CONFIGURATION - Unit shall be (two-pipe)(four-pipe) system draw-through configuration. Filter, drain line and drain pan shall be accessible by removingthe return air grille panel. Controls, service valves, coil, motor and fan assembly shall be accessible by removing the inner sound baffle panel. Hand of unit shallbe as tabulated in the schedule.

CABINET - Cabinet shall be fabricated of heavy-gauge galvanized steel and fully insulated with 1/2" multi-density glass fiber. An insulated galvanized steelaccess and sound baffle panel shall completely enclose the internal controls and fan assembly section. The return air grille panel shall be heavy-gauge steelwith a stamped (bar type) grille and electrostatically applied baked semi-gloss finish and extend 5/8" in front of unit face.


COILS - Units shall be ARI certified with standard low flow heating/cooling coils in two-pipe systems, or, standard low flow cooling coil plus one-row heatingcoil in four-pipe systems. All coils shall be seamless copper tubes in a staggered pattern with rippled and corrugated aluminum fins. Tubes shall bemechanically expanded into the fin collars for positive fin-to-tube bond. Coils shall have manual air vents and ball valves on the supply and return lines. Internalpiping shall allow for vertical riser expansion of ±1". Coil performance shall be as tabulated in the schedule. Coil shall be positioned to provide positivecondensate drainage.

FAN ASSEMBLY - Fans shall be DWDI forward curved centrifugal, direct drive type and statically and dynamically balanced. Fan housings shall be paintedsteel with integral scroll and inlets.


MOTORS - Motors shall be permanent split capacitor type (115/60/1)(265/60/1) with sleeve bearings, oilers, inherent thermal overload protection withautomatic reset and resilient mounts.

DRAIN PAN - Drain pan shall be galvanized steel and easily accessible.

SUPPLY & RETURN RISERS - Supply and return risers shall be type “L” copper (optional copper types and diameters shall be as tabulated in the schedule),with 3/4" closed cell flexible foam insulation factory installed. Non-stop slip couplings and insulation shall be factory available for field connection. Insulationshall meet or exceed current flammability classification UL94.

DRAIN RISERS - Drain risers shall be PVC (optional copper types and diameters shall be as tabulated in the schedule). Couplings shall be factory available forfield connection.

CONTROLS - Unit shall have a combination three-speed switch and thermostat with sensing bulb for field plug-in on face of unit and an adjustable thermostatelectrical box for any wall thickness up to 3 7/8" (wall mounted line voltage thermostat and three-speed switch).

FILTERS - Filters shall be nominal one-inch thick throwaway.





TWIN UNITS (OPTIONAL) - Twin unit configuration, opposite hand only, as tabulated, shall be such that two adjacent room units will be piped to a single setof risers and will operate with separate controls on each unit.

Model KZZ (Knock-down Unit) Unit Sizes S03 Thru S08 (300 Thru 800 cfm)Furnish and install where shown on plans McQuay knock-down HiLine SeasonMaker fan-coil units. Unit sizes, performance and equipment shall be astabulated in the schedule. Unit performance shall be substantiated by computer generated output data.

UNIT CONFIGURATION - Unit shall be (two-pipe)(four-pipe) system blow-through configuration with completely removable chassis. Filter, fan assembly, drainline and motor shall be accessible by removing the return air grille panel. Internal controls, service valves, drain pan and coil shall be accessible by removingthe access and sound baffle panel. Hand of unit shall be as tabulated in the schedule.

CABINET - Cabinet shall be fabricated of heavy-gauge galvanized steel and fully insulated with 1/2" multi-density glass fiber. An insulated galvanized steelaccess and sound baffle panel shall completely enclose the coil section. The return air grille panel shall be heavy-gauge steel with a stamped (bar type) grilleand electrostatically applied baked semi-gloss finish and extend 5/8" in front of unit face.


COILS - Units shall be ARI certified with standard low flow heating/cooling coils in two-pipe systems, or, standard low flow cooling coil plus one-row heatingcoil in four-pipe systems. All coils shall be seamless copper tubes in a staggered pattern with rippled and corrugated aluminum fins. Tubes shall bemechanically expanded into the fin collars for positive fin-to-tube bond. Coils shall have manual air vents. Internal piping shall allow for vertical riser expansionof ±1". Coil performance shall be as tabulated in the schedule. Coil shall be positioned to provide positive condensate drainage.

FAN ASSEMBLY - Unit sizes S03 and S08: Fan housings shall be two-piece with integral scroll and inlets. Fan wheels shall be DWDI forward curvedcentrifugal direct drive type.

Unit sizes S06 and S08: Fan housings shall be painted steel with integral scroll and separate inlets. Fan wheels shall be painted steel DWDI forward curvedcentrifugal direct type.

All fan wheels shall be statically and dynamically balanced.

MOTORS - Motors shall be permanent split capacitor type (115/60/1) (265/60/1) with sleeve bearings, oilers, inherent thermal overload protection withautomatic reset and resilient mounts.

DRAIN PAN - Drain pan shall be galvanized steel with drain line and closed cell insulation on the external surface to prevent condensation.

SUPPLY & RETURN RISERS - Supply and return risers are to be (field supplied)(factory supplied) and field installed. Risers can be installed prior to unitplacement.

DRAIN RISER - Drain risers are to be (field supplied)(factory supplied) and field installed. Risers can be installed prior to unit placement.

CONTROLS - Unit shall have a combination three-speed switch and thermostat with sensing bulb for field plug-in on face of unit and an adjustable thermostatelectrical box for any wall thickness up to 3 7/8" (wall mounted line voltage thermostat and three speed switch).

FILTERS - Filters shall be nominal one-inch thick throwaway.



FRESH AIR DAMPERS (OPTIONAL) - Two position (motorized)(manual) fresh air damper shall be factory available as tabulated in the schedule.



TWIN UNITS (OPTIONAL) - Twin unit configuration, opposite hand only, as tabulated, shall be such that two adjacent room units will be piped to a single setof risers and will operate with separate controls on each unit.


Total system capability.

ThinLine Fan-coils

Large Capacity Fan-coils

Unit Heaters

HiLineFan-coil

HorizontalVertical (Slope Top)

Cabinet

Hideaway

©2004 McQuay International • www.mcquay.com • 800-432-1342 (8/04)

Vertical Unit HeaterHorizontal Unit Heater

®

This document contains the most current product information as of this printing. For the most up-to-dateproduct information, please go to www.mcquay.com.

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