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Tab 7

IN THIS SECTION

I _ Air Handlers

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Duct Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Refrigerant Mains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10Expansion Valve Bulb Installation , 12Air System Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . .. 12Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Electrical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Airflow Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Airflow Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Twin Belt Drive Adjustment. . . . . . . . . . . . . . . . . . . . . . . . 35Sequence of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 36Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 36Typical Wiring Diagrams 43Air Handling Units 43

R-410AMODELS: NC090 - 240, 2-PipeND120 - 240, 4-Pipe7.5 - 20 Ton, 60 Hertz

TABLE OF CONTENTSGeneral , 2Safety Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Agency Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3Unit Application Data 4Physical Data Indoor Unit 5Air Discharge Conversion " 5Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Location " 7Rigging 7Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7Mounting 8

LIST OF TABLES1 Unit Application Data Indoor. . . . . . . . . . . . . . . . . . . . . .. 4 11 NC/ND180 UpfJow. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 292 Physical Data Indoor Unit , 5 12 NC/ND180 Horizontal 293 Minimum Clearances 7 13 NC/ND240 Upflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 304 Corner Weights & Center of Gravity NC/ND Units. . . . .. 9 14 NC/ND240 Horizontal. . . . . . . . . . . . . . . . . . . . . . . . . .. 305 Electrical Data - Evaporator Units 22 15 RPM Selection 316 AltitudelTemperature Correction Factors 25 16 Additional Static Resistance. . . . . . . . . . . . . . . . . . . . .. 327 NC090 Upflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 17 BlowerMotor And Drive Data. . . . . . . . . . . . . . . . . . . .. 338 NC090 Horizontal 27 18 Piping, Electrical and Duct Opening Connection9 NC/ND120 Upflow 28 Sizes 42

10 NC/ND120 Horizontal 28

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-------508526-YIM-E-0910

GeneralThese completely assembled 7-1/2 thru 20 ton evaporatorblower units include a well insulated cabinet, a DX cooling coilwith copper tubes and aluminum fins, expansion valve(s), distributor(s), throwaway filters, centrifugal blower(s), blowermotor, completely wired control box and a small holding chargeof dry nitrogen. Blower motors and adjustable drives are factory-installed on all units.

Additional information on the design, installation, operation andservice of this equipment is available in the Technical Guide 505428.Renewal PartsContact your local Source 1 parts distribution center for authorized replacement parts.Agency Approvals

Supplemental resistance heaters, supply air plenums, retum airgrills, hot water coils, non-freeze steam coils, and bases areavailable as accessories for field installation.The units are shipped in the vertical position ready for fieldinstallation.

Design certified by CSA as follows:1. For use as a (cooling coil, heat pump coil/air handler) onlywith or without supplemental electric heat.2. For indoor installation only.

Safety Considerations InspectionInstaller should pay particular attention to the words: NOTE,CAUTION, and WARNING. ~ are intended to clarify ormake the instal lation easier. Cautions are given to preventequipment damage. Warnings are given to alert installer thatpersonal injury andlor equipment damage may result if installation procedure is not handled properly.

As soon as a unit is received, it should be inspected for possibledamage during transit. If damage is evident, the extent of thedamage should be noted on the carrier's freight bill. A separaterequest for inspection by the carrier's agent should be made inwriting.

IA CAUTION [This product must be installed in strict compliance withthe enclosed installation instructions and any applicablelocal, state and national codes including, but not limitedto, building, electrical, and mechanical codes.

IAWARNINGIImproper installation may create a condition where theoperation of the product could cause personal injury orproperty damage.Improper installation, adjustment, alteration, service ormaintenance can cause injury or property damage.Refer to this manual for assistance or for additional

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NomenclatureConfigured Split Air Handler Model Number Nomenclature

INlc 1240 ICOO IB 61AlAAI2 AII Iroduct Category

N =Split System, Air Handler, AC &HP R-410A I - , Product Style IIA = Sty le A I

Product IdentifierC = Standard Efficiency, 2-Pipe, R-410A Product GenerationD = Standard Efficiency, 4-Pipe, R-410A 1 = First Generation2 = Second GenerationNominal Cooling Capacity - MBH090 = 7-1/2 Ton120= 10 Ton Installation Options180= 15Ton A = None240 = 20 Ton C =YCCS Clrl CV Cooling/Elec HtD = YCCS Clr l COBP Cooling/ElecHI

E=YCCS Ctrl CV w/H2OHeat Type & Nominal Heat Capacity I F = YCCS Ctrl COBPw/H2O I Product Options Icoo = Cooling Only I Voltage IAA = No Options Installed I

5 = 575-3-606 =208/230/460-3-607 = 380/415-3-50Airflow

B = 1.5 HP MotorC =2.0 HPMotorD =3.0 HPMotorE = 5.0 HP MotorF = 7.5 HPMotor

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Unit Application DataTable 1: Unit Application Data Indoor

Entering Air Temperature Degrees ofModel Power Supply Voltage Voltage Variation Supply Air Range CFM Cooling Heating DBlDBIWB

Min. Max. Min. Max. Min. Max. Min. Max.208/230-3-60 187 253 2,250 3,750 65/57 90/77 40 80

NC090 460-3-60 414 506 2,250 3,750 65/57 90/77 40 80575-3-60 540 630 2,250 3,750 65/57 90177 40 80

208/230-3-60 187 253 3,000 5,000 65/57 90/77 40 80NC120 460-3-60 414 506 3,000 5,000 65/57 90/77 40 80

575-3-60 540 630 3,000 5,000 65/57 90/77 40 80208/230-3-60 187 253 3,000 5,000 65/57 90/77 40 80

ND120 460-3-60 414 506 3,000 5,000 65/57 90/77 40 80575-3-60 540 630 3,000 5,000 65/57 90177 40 80

2081230-3-60 187 253 4,500 7,500 65/57 90177 40 80NC180 460-3-60 414 506 4,500 7,500 65/57 90177 40 80

575-3-60 540 630 4,500 7,500 65/57 90/77 40 80208/230-3-60 187 253 4,500 7,500 65/57 90177 40 80

ND180 460-3-60 414 506 4,500 7,500 65/57 90177 40 80575-3-60 540 630 4,500 7,500 65/57 90/77 40 80

208/230-3-60 187 253 6,000 10,000 65/57 90177 40 80NC240 460-3-60 414 506 6,000 10,000 65/57 90/77 40 80

575-3-60 540 630 6,000 10,000 65/57 90177 40 80208/230-3-60 187 253 6,000 10,000 65/57 90177 40 80

ND240 460-3-60 414 506 6,000 10,000 65/57 90/77 40 80575-3-60 540 630 6,000 10,000 65/57 90/77 40 80

1. Heating MiniMax temperatures apply to steam and hotwater coils. NOTE: Do not apply steam to hot watercoils.

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Physical Data Indoor UnitTable 2: Physical Data Indoor Unit

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ModelsComponent NC090 NC120 ND120 NC180 ND180 NC240 ND240Nominal Tonnage 71/2 10 10 15 15 20 20

DIMENSIONS (inches)Length 56.0 56.0 56.0 74.5 74.5 98.5 98.5Width 30.0 30.0 30.0 33.0 33.0 30.0 30.0Height 65.0 65.0 65.0 75.0 75.0 65.0 65.0

WEIGHTS (Ib)Unit Shipping 526 573 575 796 796 938 938Unit Operating WithStandard Motor and Drive 498 539 541 764 764 873 873High Static Motor and Drive 500 550 552 792 792 903 903

INDOOR BLOWER (Forward Curve)Diameter x Width 12 x 12 15 x 15 15x 15 18 x 18 18 x 18 15 x 15 15 x 15Quantity 1 1 1 1 1 2 2

INDOOR COILFace area (Sq. Ft.) 10.6 10.6 10.6 18.3 18.3 20.0 20.0Rows 3 4 4 3 4 4 4Fins per inch 15 15 15 15 15 15 15Tube diameter 3/8 3/8 3/8 3/8 3/8 3/8 3/8Circuitry Type Interlaced Interlaced Interlaced Interlaced Interlaced Interlaced InterlacedRefrigerant Control TXV TXV TXV TXV TXV TXV TXV

SYSTEM DATANo. Refrigeration Circuits 1 1 2 1 2 1 2Suction Line 00 (in.) 1 1/8 13/8 1 1/8 15/8 1 3/8 15/8 13/8liqUid Line 00 (in.) 5/8 7/8 5/8 7/8 5/8 7/8 7/8

FILTERSSize and Quantity Per Model (In.) j16x25x2 4 4 4 -- - 8 8

120 x 24 x 2 - - - 6 6 - -Face area (Sq. Ft.) 11.1 11.1 11.1 20.0 20.0 22.2 22.2Size and Quantity Per Modei (In.) j16x25x4 4 4 4 -- - 8 8

j18x24x4 - - - 6 6 -- --Face area (Sq. Ft.) 11.1 11.1 11.1 18.0 18.0 22.2 22.2

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EVAPORATORCOIL POSITION1

BLOWER w/' I I $1 --, ~ r - = J $' --+--1 - ! ~,1-- I 'J ....,' ,LI$

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MOTORACCESSPANEL

BLOWER SECTION

3/816 X 1112" LG. BOLT3 / B ~ LOCK-WASHER31B' FLATWASHER

'" X 1/B'THKGASKET

COILSECTION

Figure 3: Typical Cabinet AssemblyUnit InstallationLocationThis split system evaporator unit is not designed for outdoorinstallation. It must be located inside a building structure, eitherinside or outside the conditioned space where it is protectedfrom rain and other moisture.The unit should be located as close to the condenser uniUheat

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ELECTRICALPANEL

CONTROLBOX

3/B.18X 1.1ITlG.BOlT3M"LOCKWASHER3.8" FLATWASHER

ClearancesTable 3: Minimum ClearancesMinimum ClearancesTopwith Supply Air Opening1 24"Front with Retum Air Opening 24"Right Side with Access for Piping, Power & 24"Control Wiring Connections2Left Side 24"

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MountingThe split system evaporator unit can be applied in varioushorizontal positions. Figure 4 shows recommended suspensionrigging using properly sized all-thread and metal c-channel. All

components to suspend the unit must be field supplied. Pleaserefer to the unit's total weight, centerof gravity and cornerweights (Horizontal position) shown in the appropriate table forproper support sizing.

END VIEW

Flat Washer ILock Washerand Nuto

MOUNTING DETAILAll ThreadSteel RodMountingBracket

1'\.0 0 o O/.00 0,0 . 0

0 ,

0 ' , ,0 0, , , ,0 0

1)00 o ~

SIDE VIEW

" , , "0 0 o ~0 00 0, ,

1"\ .0 0 oL00 0,

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Table 4: Corner Weights & Center of Gravity NC/ND Units

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Weight (Ibs.) Center of Gravity 4 Point Load Location (Ibs.) 6 Point Load Locat ion (Ibs.)Model Drive Options (in.)Shipping IOperating X I y A T B 1 C 1 D A/BICIDIEIFVertIcal Airflow

NC090 Std. Mtr. and Drv. 524 498 16.2 26.7 109 128 141 120 71 79 88 97 86 78High Static Mtr. and Drv. 526 500 16.2 26.7 110 129 142 120 71 79 88 97 87 78NC120 Std. Mtr. and Drv. 562 539 15.5 26.8 125 134 146 136 82 86 90 98 94 89High Static Mtr. and Drv. 573 550 15.5 26.7 127 136 148 139 84 87 91 100 96 91ND120 Std. Mtr. and Drv. 564 541 15.5 26.9 126 135 145 136 83 87 91 98 94 89High Static Mtr. and Drv. 575 552 15.5 26.9 128 137 148 138 84 88 92 100 95 91NC180 Std. Mtr. and Drv. 796 764 18.2 35.8 164 203 219 178 106 121 140 151 131 114High Static Mtr. and Drv. 824 792 18.2 35.8 170 210 227 184 110 126 145 157 136 118ND180 Std. Mtr. and Drv. 796 764 18.2 35.8 164 203 219 178 106 121 140 151 131 114High StaticMtr. and Drv. 824 792 18.2 35.8 170 210 227 184 110 126 145 157 136 118NC240 Std. Mtr. and Drv. 908 873 15.8 42.6 179 198 260 235 118 125 134 176 165 154High Static M tr. and Drv. 938 903 15.7 42.4 185 204 269 245 122 129 138 182 171 161ND240 Std. Mtr. and Drv. 908 873 15.8 42.6 179 198 260 235 118 125 134 176 165 154High Static Mtr. and Drv. 938 903 15.7 42.4 185 204 269 245 122 129 138 182 171 161HOrizontal AirflowNC090 Std. Mtr. and Drv. 524 498 30.1 26.7 118 119 131 130 79 79 79 87 87 87High Static Mtr. and Drv. 526 500 30.1 26.7 119 120 132 130 79 79 80 88 87 87NC120

Std. Mtr. and Drv. 562 539 29.9 26.8 129 129 140 141 86 86 86 94 94 94High Static Mtr. and Drv. 573 550 30.2 26.7 130 132 145 142 87 87 88 97 96 95

ND120 Std. Mtr. and Drv. 564 541 29.9 26.9 131 130 140 141 87 87 86 93 94 94High Static Mtr. and Drv. 575 552 30.2 26.9 132 133 144 142 88 88 89 96 96 95NC180 Std. Mtr. and Drv. 796 764 33.7 35.8 179 187 203 194 119 122 126 136 132 128High Static Mtr. and Drv. 824 792 34.4 35.8 182 198 214 197 120 127 134 145 137 130ND180 Std. Mtr. and Drv. 796 764 33.7 35.8 179 187 203 194 119 122 126 136 132 128High Static Mtr. and Drv. 824 792 34.4 35.8 182 198 214 197 120 127 134 145 137 130NC240 Std. Mtr. and Drv. 908 873 30.1 42.6 188 189 249 247 125 126 126 166 165 164High Static Mtr. and Drv. 938 903 30.6 42.4 191 198 262 252 126 130 133 176 171 167ND240 Std. Mtr. and Drv. 908 873 30.1 42.6 188 189 249 247 125 126 126 166 165 164High Static M tr. and Drv. 938 903 30.6 42.4 191 198 262 252 126 130 133 176 171 167

LEFTA B

LEFTA B

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Duct ConnectionsDuctwork should always be suspended with hangers orsupported by legs. It should never be fastened directly to thebuilding structure.Allow clearance around ducts for safety in the handling ofheated air and for insulation when required.

NOTE: Consult local plumbing codes for type of glue requiredfor drain connection.Drain piping should be constructed as shown in Figure 6. The3-inch dimension must equal or exceed the negative staticpressure developed by the supply air blowers. If it does not, thecondensate will not drain properly and may overflow the drainpan.

InsulationDuctwork insulation should meet the following criteria:

Be used when ducts pass through an unconditionedspace in the cooling season or through an unheatedspace during the heating season. Include a vapor barrier around the outside to prevent theabsorption of moisture.

Be no less than 2 inches thick with a weatherproofcoatingwhen applied to ducts exposed to outdoor conditions.Supply Air DuctsSee Figure 5 for suggested method of connecting supply airductwork. Non-flammable material collars should be used tominimize the transmission of noise and/or vibration.

%"ABSSTUB

FIELD SUPPLIED

This Split-System (Air Condensing / Heat Pump / Air

Refrigerant MainsFigure 6: Recommended Drain Piping

DUCTTRANSITIONNON-FLAMMABLE :; r )COLLAR ~ D U /

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2. Liquid line pressure drop due to friction.3. Suction line velocity for oil return.4. Liquid line pressure drop due to vertical rise. For certainpiping arrangements, different sizes of suction line pipemay have to be used. The velocity of the refrigerant vapor

must always be great enough to carry the oil back to thecompressor.5. Evaporator Located Below Condenser - On a split

system where the evaporator blower is located below thecondenser, the suction line must be sized for both pressuredrop and for oil return.6. Condenser Located Below Evaporator - When the

condenser is located below the evaporator blower, theliqUid line must be designed for the pressure drop due toboth friction loss and vertical rise. If the pressure drop dueto vertical rise and friction exceeds 60 psi, some refrigerantwill flash before it reaches the thermal expansion valve.Flash gas:1. Increases the liquid line pressure loss due to friction that in

turn causes further flashing.2. Reduces the capacity of the refrigerant control devicewhich starves the evaporator.

3. Erodes the seat of the refrigerant control device.4. Causes erratic control of the refrigerant entering theevaporator.Take Adequate PrecautionsMany service problems can be avoided by taking adequateprecautions to provide an internally clean and dry system andby using procedures and materials that conform to establishedstandards.

508526-YIM-E-0910

be leak free. Ifpressure DOES NOT exist the section will needto be repaired before evacuation and charging is performed.A filter-drier MUST be field-installed in the liquid line of everysystem to prevent dirt and moisture from damaging the system.Properly sized filter-driers are shipped with each condensingsection.NOTE: Installing a filter-drier does not eliminate the need forthe proper evacuation of a system before it is charged.A field-installed moisture indicating sight-glass should beinstalled in the liquid line(s) between the filter-drier and theevaporator coil. The moisture indicating sight-glass can be usedto check for excess moisture in the system.The evaporator coil has copper sealing disks brazed over theends of the liquid and suction connections. The temperaturerequired to make or break a brazed joint is high enough tocause oxidation of the copper unless an inert atmosphere isprovided.NOTE: Dry Nitrogen should flow through the system at all

t imes when heat is being applied and until thejoint hascooled. The flow of Nitrogen will prevent oxidation ofthe copper lines during installation.

Always punch a small hole in sealing disks before unbrazing toprevent the pressure in the line from blOWing them off . Do notuse a drill as copper shavings can enter system.NOTE: Solenoid and hot gas bypass valves (if used) should beopened manually or electrically during braZing orevacuating.NOTE: Schrader valves located on unit service valves shouldhave their stem removed during brazing to prevent

damage to the valve.

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Connect the main liquid line to the liquid line connection on thecondenser unit, while maintaining a flow of Nitrogen. Cool thevalve body and replace the Schraded valve stem on the serviceport of the liquid line service valve.Install the liquid line from the condenser unit to the evaporatorliquid connection, maintaining a flow of nitrogen during allbrazing operations.The filter-drier and sight glass must be located in this line,leaving the 0.0. unit.Connect a low-pressure nitrogen source to the Schrader valvelocated on the evaporator section coil headers. Punch a smallhole in the sealing disks, the flow of Nitrogen will prevent anydebris from entering the system. Unbraze both liquid andsuction sealing disks and prepare the joints for connections ofthe main lines.Connect the main liquid line to the liquid line connection on theevaporator section, while maintaining a flow of Nitrogen.Make the suction line connection at the evaporator and run theline to the condenser unit. Connect the main suction line to thesuction line connection on the condenser unit, while maintaininga f low of nitrogen. Cool the valve body and replace theSchrader valve stem on the service port of the liquid line servicevalve.Once the brazing process is complete, leak testing should bedone on all interconnecting piping and the evaporator beforeproper evacuation to 500 microns is performed. Once the lineset and evaporator section is property evacuated the servicevalves can be opened and the condensing unit is now ready tocharge with the appropriate weight of refrigerant.

Expansion Valve Bulb InstallationThermal expansion valve bulbs on the blower units are notfactory-installed in its final locations; They are only temporarilytaped for shipment. The bulb for system one must be fastenedin a 4 o'clock and/or8 o'clock position to the systemone suctionline leaving the evaporator coil after piping connections aremade. Repeat the procedure for system two, locating the bulbsin a 4 o'clock and/or8 o'clock position to the system two suctionline. Use the bulb clamps from the bag taped to the suctionconnection inside the blower unit.NOTE: Ensure the TXV bulbs are not crossed between

systems. Undesirable performance and possiblecompressor damage may occur.Liquid Line SolenoidsThe NC120-240 units are shipped with factory installed,normally closed, liquid line solenoid valves on the second stagesystem. When the solenoid coil is energized with a 24-voltsignal, the valve will open.During brazing operations, the valves should be placed in theOPEN posit ion by removing the stem cap with a 9/16" wrench,then rotating the exposed valve stem inward (CLOCKWISE),approximately 10-12full turns (from thefully CLOSED position),using a 4" adjustable wrench.The valve stems should be returned to the CLOSED(COUNTER-CLOCKWISE) position prior to the unit's operation.Air System AdjustmentRefer to Tables 7 thru 17 to adjust the air system.

I IA CAUTION I Electrical ConnectionsThe electric box ships complete with contractor, transformer,

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508526-YIM-E-0910

POWER SUPPLY2081230. 460OR 575-3-60

mostat.

CONDENSER CONTROL BOX

~ IL11L21L3TB1 SYSTEM ONETB2 CONTROL BOARD

IS1IG1Is2t:321C 166160 IX I IY11 G IY21 X IR ISIi C IW11w21

I NOTE: Do not use a hea t pump therr- IRICI Y11GIW11W21

THERMOSTATSINGLE STAGE COOLINGTWO STAGE HEATING

IS1!G11S21G21 c 1661601

NOTE: Liquid l ine solenoid is not inCluded or requiredon 7.5 Ton Single Stage Units.0

-----------------

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508526-YIM-E-091 0

POWER SUPPLY2081230,460OR 575-3-60CONDENSER CONTROL BOX

TB2~ IL11L21L3

TB1 SYSTEM ONECONTROL BOARDIs 1G11s$21 C 166 60 IX I

-

IS1lG11s 2b21 c 1661601r -

I IRIe IYl GIY21W11wziTHERMOSTAT

TWO STAGE COOLINGTWO STAGE HEATING

NOTE: Do not use a heat pump thermostat.

WIQUID LINESOLENOID VM.VE

POWERSUPPLY

NOTE: liquid line solenoid is only activated duringsecond stage cooling operation.

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POWER SUPPLV208/230, 460OR 575-3-60

rmostat.

CONDENSER CONTROL BOX

~ IL11L2IL3/TB1 SYSTEM ONETB2 CONTROL BOARD

Is 11G11s2IG21 el66160lxl IV1/ G IY2/ X 'R /Set C IW11w21

I I NOTE: Do not use a heat pump theIR Ie IY11G IY21w11w21~ THERMOSTATTWO STAGE COOLINGTWO STAGE HEATING

IS1lG11s21G21 cleolGol

NOTE: liquid line solenoid is n ot included or required0 on any 4 pipe units.

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508526-YIM-E-0910

POWER SUPPLY2081230,460OR 575-3-60

CONDENSERCONTROL BOX

~ IL11L21L31TB1 SYSTEM ONETB2 CONTROL BOARDJs1JG1,s$21C166160 1XI IY11 G 1Y21 X IR 1St1 C IW11w21

l.kIW11W21G C IY11X IR ITHERMOSTATSINGLE STAGE COOLING

TWO STAGE HEATING

Is l1G11s2b21 c 16151601

r \) NOTE: Liquid line solenoid is not included or requiredon 7.5 Ton Single Stage Units.

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508526-YIM-E-091 0

POWER SUPPLY2081230,460OR 575-3-60CONDENSER CONTROL BOX~ IL11L21L31

TB1 SYSTEM ONETB2 CONTROL BOARDIS11G11s21G2I c 1661601 X I Y11 G IV21 X 1R C IW11w21l"u tu

' - - -

IllIW11W2 G C IY1IY2/ X IR'-- THERMOSTAT

TWO STAGE COOLINGTWO STAGE HEATING

ISlIG11S21G21c 1661601,.J

bl NOTE: Liquid line solenoid is only activated duringLIQUID LINE (0OLENOID VALVE second stage cooling operation.

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POWER SUPPLY2081230. 460OR 515-3-80CONDENSER CONTROL BOX

~ fL1TL2L3TB1 SYSTEM ONETR2 CONTROL BOARD

IS1k 1Is2l321 C 66 601 XI IV11 G 1Y21 X IR C IW11w21~

t i l \fW1 W21G C X IY1Ty2fRl

THERMOSTATTWO STAGE COOLINGTWO STAGE HEATING

Isl/G11s2/G2I c I," li6111

O ~ NOTE: Liquid line solenoid is not included or requiredon any 4 pipe units.

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POWER SUPPLY2081230, 460OR 575-3-60I I I CONDENSER CONTROL BOX

rB2IS11G11s21c:i21 c 661601 X I

~ ~ TB1 SYSTEM ONECONTROL BOARDIY11G IY2 X R C IW11w21

J I 1r-- ' l ' - ' f--- 'T'- ' I '-1IY11Rlc GIX IW11W21


j I Ir----'I '"'f '------JI'-'I '-1IY1/R IC GIX IW11W21


S1 (il S21:>21C 666Q- l

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508526-YIM-E-0910

POWER SUPPLY2081230.460OR 515-HO

CONDENSER CONTROL BOX~ L.11L21.3TB1 SVSTEMONETR? CONTROL BOARDIs11G1Is2k321C166160 IX IV1 Gh '21 XI R ISQ C IW11w21I IL LI.

IY11Y2 GIXICIRlw11THERMOSTATTWO STAGE COOLINGSINGLE STAGE HEATINGS1K 1 1 ~ C 161601I

hWERSUPPLY20&'230. 480OR 575-3-80 0

EVAPORATORBLOWER MOTORCONTACTOR

EVAPORATOR CONTROL BOX

PO

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508526-YIM-E-0910

POWER SUPPLY2081230,460OR 575-3-60 CONDENSER CONTROL BOX

+/iill L11L2 L31T61 SYSTEM ONETB2 CONTROL BOARD

IS11G11s2IG21 c 66160lx Y1 GIY2/xl R C IW1 w21

JJ IJ I IIY1 RielGIXIW11W21 Y1 R Ie IGIX W11W21THERMOSTAT THERMOSTATGLE STAGECOOLING SINGLE STAGE COOLINGa STAGE HEATING TWO STAGE HEATING

J51 G1 s2t;2J C 6650 'S rG1 521 : 2 C '561eo!

SINTW

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508526-YIM-E-0910

Electrical DataTable 5: Electrical Data - Evaporator Units

Supply Max Fuse2JMotor HP PowerSupply Blower Electric Heat Option MeAl Breaker3 SizeMotor (Amps)FLA Model I KW I StalltlS I Amps (Amps)

NC090COOBNone - - 6.3 1510KW 7.5 1 20.8 32.3 35

208-3-60 5.0 16 KW 12 2 33.4 47.9 5026KW 19.5 2 54.2 74.0 8036KW 27 2 75.1 100.1 110None - - - 6.5 1510KW 10 1 24.1 36.6 40

2303-60 5.2 16 KW 16 2 38.5 54.6 6026KW 26 2 62.5 84.7 9036KW 36 2 86.6 114.8 1251.5 None 3.1 1510KW 10 1 12.0 18.2 20

460-3-60 2.5 16KW 16 2 19.2 27.2 3026KW 26 2 31.3 42.2 4536KW 36 2 43.3 57.3 60None - - - 2.5 1510KW 10 1 9.6 14.5 15

575-3-60 2.0 16KW 16 2 15.4 21.7 2526KW 26 2 25.0 33.8 3536KW 36 2 34.6 45.8 50

NC090COOC. NCJNDl120COOCNone 8.3 1510KW 7.5 1 20.8 34.3 35

2083-60 6.6 16KW 12 2 33.4 49.9 5026KW 19.5 2 54.2 76.0 8036KW 27 2 75.1 102.1 110None - 8.5 1510KW 10 1 24.1 38.6 40

230-3-60 6.8 16KW 16 2 38.5 56.6 6026KW 26 2 62.5 86.7 9036KW 36 2 86.6 116.8 1252.0 None 4.3 1510KW 10 1 12.0 19.3 20

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Table 5: Electrical Data - Evaporator Units (Continued)

508526-YIM-E-0910

SupplyMax Fuse2/MotorHP Power Supply Blower Electric Heal Option MCA1 Breaker3 SizeMotor (Amps)FLA Model I KW I Stages I Amps (Amps)(NC/ND)120COOD (NC/ND)180COOD

None -- -- - 12.0 1510 KW 7.5 1 20.8 38.1 40208-3-60 9.6 16KW 12 2 33.4 53.7 6026KW 19.5 2 54.2 79.8 80

36KW 27 2 75.1 105.8 11050 KW' 37.6 2 104.2 116.2 125

None - - -- 11.8 1510KW 10 1 24.1 41.8 45

230-3-60 9.4 16KW 16 2 38.5 59.9 6026KW 26 2 62.5 89.9 9036KW 36 2 86.6 120.0 125

3.0 50KW' 50 2 120.3 132.0 150None - - - 5.9 1510 KW 10 1 12.0 20.9 25460-3-60 4.7 16 KW 16 2 19.2 29.9 3026KW 26 2 31.3 45.0 45

36KW 36 2 43.3 60.0 7050KW 50 2 60.1 66.0 70

None - - - 4.5 1510KW 10 1 9.6 16.5 20

575-3-60 3.6 16KW 16 2 15.4 23.7 2526KW 26 2 25.0 35.8 4036KW 36 2 34.6 47.8 5050KW' 50 2 48.1 52.6 60

(NC/ND)180COOENone - - - 17.5 2010KW 7.5 1 20.8 43.6 45

208-3-60 14.0 16KW 12 2 33.4 59.2 6026KW 19.5 2 54.2 85.3 9036KW 27 2 75.1 111.3 12550KW 37.6 2 104.2 121.7 125None - -- - 17.5 2010KW 10 1 24.1 47.6 50

230-3-60 14.0 16KW 16 2 38.5 65.6 7026KW 26 2 62.5 95.7 10036KW 36 2 86.6 125.8 15050KW 50 2 120.3 137.8 150

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508526-YIM-E-0910

Table 5: E lectr ica l Data Evaporator Units (Continued)

(NC/ND)240COOE

Supply Max Fuse21Blower Electric Heat Option MeAlMotorHP Power Supply Motor (Amps) Breaker3 SizeFLA Model , KW 1 Stages , Amps (Amps)None 17.5 20

2083-60 14.0 20KW 15 1 41.7 69.6 7032KW 24 2 66.7 100.9 11052KW 39.1 2 108.4 125.9 150None 17.5 20

230-3-60 14.0 20KW 20 1 48.1 17.6 8032KW 32 2 77.0 113.7 1255.0 52KW 52 2 125.1 142.6 150None - 8.8 15

4603-60 7.0 20KW 20 1 24.1 38.8 4032KW 32 2 38.5 56.9 6052KW 52 2 62.5 71.3 80None 6.5 15

575-3-60 5.2 20KW 20 1 19.2 30.6 3532KW 32 2 30.8 45.0 4552KW 52 2 50.0 56.5 60(NC/ND)240COOFNone 27.1 30

2083-60 21.7 20KW 15 1 41.7 79.2 8032KW 24 2 66.7 110.5 12552KW 39.1 2 108.4 135.5 150None - 25.0 25

230-3-60 20.0 20KW 20 1 48.1 85.1 9032KW 32 2 17.0 121.2 1257.5 52KW 52 2 125.1 150.1 175None - 12.5 15

460-3-60 10.0 20KW 20 1 24.1 42.6 4532KW 32 2 38.5 60.6 7052KW 52 2 62.5 75.0 80None - 9.8 15

575-3-60 7.8 20KW 20 1 19.2 33.8 3532KW 32 2 30.8 48.2 5052KW 52 2 50.0 59.8 60

1. Minimum Circuit Ampacity.2. Dual Element, Time Delay Type.3. HACR type per NEC.

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508526-YIM-E-0910Table 6: Altitude/Temperature Correction Factors

Air Altitude (Ft.)Temp. 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 1000040 1.060 1.022 0.986 0.950 0.916 0.882 0.849 0.818 0.788 0.758 0.72950 1.039 1.002 0.966 0.931 0.898 0.864 0.832 0.802 0.772 0.743 0.71560 1.019 0.982 0.948 0.913 0.880 0.848 0.816 0.787 0.757 0.729 0.70170 1.000 0.964 0.930 0.896 0.864 0.832 0.801 0.772 0.743 0.715 0.68880 0.982 0.947 0.913 0.880 0.848 0.817 0.787 0.758 0.730 0.702 0.67690 0.964 0.929 0.897 0.864 0.833 0.802 0.772 0.744 0.716 0.689 0.663100 0.946 0.912 0.880 0.848 0.817 0.787 0.758 0.730 0.703 0.676 0.651

....2(,)~ 0.900 r - : : ~ : - " " ; ; ; ; : ; : ; ; ; : : : : : : ~ : : - ~ ; ; ; ; ; ; ; ; : : : : : : : : = ~ : - " " ; ; ; ; : ; : ; ; ; : : : : : : : i O O o i f t

1 = ~ ~ ~ ~ ~ ~ ~ ; ~ ~ ~ ~ ~ ~ ~ ; ~ ~ ~ ~ ~ ~ ~ ~ 3 ~ 0 ~ 0 0 } 1 t:...u- 0.850 4000 It

0.800 '-- 5000 ItUo ~ ~ ~ 6000 It0.750 - -- : : - . - - - - - - - - - - - . --------------------iiJii6-il0.700 BODO It9000 It0.650 10000 It0.600 +-------,.----,----,.-----,----,------,----,40 50 60 70 80

Ai r Temperature (OF)90 100

Figure 19: AltitudelTemperature Correction FactorsThe examples below will assist in determining the airflow blower tables to select the blower speed and the BHP

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508526-YIM-E-0910

Drive Selection1. Determine Upflow or Horizontal supply duct Application.2. Determine desired airflow.3. Calculate or measure the amount of extemal static pressure.4. Using the operating point. determined from steps 1, 2 & 3, locate this point on the appropriate supply air blower performance

table. (Linear interpolation may be necessary.)5. Noting the RPM and BHP from step 4, locate the appropriate motor and/or drive on the RPM selection table.6. Review the BHP compared to the motor options available. Select the appropriate motor and, or drive.7. Review the RPM range for the motor options available. Select the appropriate drive if mUltiple drives are available for thechosen motor.8. Determine turns open to obtain the desired operation point.Example1. 3250 CFM2. 1.4 iwg3. Using the supply air blower performance table below, the following data point was located: 1100 RPM & 1.8 BHP.4. Using the RPM selection table below, Model X is found.5. 1.8 BHP exceeds the maximum continuous BHP rating of the 1.5 HP motor. The 2 HP motor is required.6. 1100 RPM is within the range of the 2 HP drives.7. Using the 2 HP motor and drive, 1 tum open will achieve 1128 RPM.Airflow PerformanceExample Supply Ai r Blower Performance

Available External Static Pressure - IWG(CFM) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 I 1.8 I 2.0RPM BHP RPM I BHP RPM BHP RPM I BHP RPM BHP I RPM BHP RPM BHP RPM I BHP IRPM I BHP I RPM I BHP

Standard 1.5 HP & Drive High Static 2 HP & Drive3000 696 0.9 757 1.1 622 1.2 891 1.3 961 1.3 1019 1.5 10 n 1.6 113511.6 I3250 729 1.1 790 1.3 855 1.4 924 1.5 984 1.6 1042 1.7 1100 1.8 1159 2.0

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Airflow PerformanceTable 7: NC090 Upf low

508526-YIM-E-091 0

Available External Static Pressure IWG(CFM) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM/BHP RPM IBHPStd. 1.5 HP & Field Standard 1.5HP & Drive High StaUc 2 HP & DriveSupplied Drive

2250 754 0.8 828 0.9 902 1.0 988 1.1 1051 1.3 1116 1.4 118311.52500 707 0.8 777 0.9 851 1.0 925 1.1 996 1.3 1059 1.4 1124 1.5 1191 1.72750 735 0.9 805 1.1 879 1.2 953 1.3 1012 1.4 1076 1.6 1141 1.73000 705 1.0 767 1.1 837 1.2 911 1.3 973 1.5 1035 1.6 1099 1.7 1164 1.93250 741 1.1 802 1.3 872 1.4 947 1.5 1002 1.7 1064 1.8 1127 2.03500 780 1.4 842 1.5 912 1.6 974 1.8 1035 1.9 1097 2.1 1161 2.23750 823 1.6 884 1.7 954 1.9 1012 2.0 1072 2.2 1134 2.3 Exceeds BHP Limitations1. Airflow performance includesdry evaporator coil. See Static Resistance table for additional applications.2. See RPM Selection table to determine desired motorsheave setting and to determine the maximum continuous BHP.3. kW = BHP x 0.746 + nameplate rated motor efficiency.

Table 8: NC090 HorizontalAvailable External Static Pressure - IWG

(CFM) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0RPM I BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM IBHP RPM IBHPStd. 1.5 HP& Field Standard 1.5 HP & Drive High StaUc 2 HP & DriveSupplied Drive

2250 747 0.8 816 0.9 889 1.0 954 1.2 1013 1.3 1071 1.5 112811.62500 703 0.8 768 0.9 837 1.0 909 1.1 977 1.2 1036 1.4 1094 1.5 1151 1.72750 728 0.9 793 1.0 862 1.1 934 1.2 998 1.4 1056 1.5 1114 1.73000 696 0.9 757 1.1 822 1.2 891 1.3 961 1.4 1019 1.6 1077 1.7 1135 1.93250 729 1.1 790 1.3 855 1.4 924 1.5 984 1.6 1042 1.8 1100 1.9 1159 2.13500 766 1.3 826 1.5 892 1.6 953 1.6 1010 1.9 1069 2.0 1127 2.23750 806 1.6 867 1.7 932 1.8 984 1.9 1041 2.1 1099 2.3 Exceeds BHP Limitations1. Airflow performance includes dry evaporator coil. SeeStatic Resistance table for additional applications.2. See RPM Selection table to determine desiredmotor sheave setting and to determine the maximum continuous BHP.3. kW =BHP x 0.746 + nameplate rated motorefficiency.

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I 508526-YIM-E-0910

Table 9: NC/ND120 UpflowAvailable External Static Pressure IWG

(CFM) 0.2 0.4 0.6 0.8 I 1.0 1.2 1.4 I 1.6 1.8 2.0RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHPStd. 2 HP & Field Standard 2 HP & Drive High Static 3 HP & DriveSupplied Drive

2500 671 0.8 728 0.9 786 1.0 853 1.1 926 1.3 975 1.5 1026 1.6 10n 1.72750 684 0.9 741 1.0 801 1.1 866 1.2 933 1.4 982 1.6 1032 1.7 1084 1.83000 701 1.0 757 1.1 817 1.3 882 1.4 941 1.5 991 1.7 1041 1.8 1092 2.03250 664 1.0 719 1.1 n6 1.3 836 1.4 903 1.5 952 1.7 1002 1.8 1052 2.03500 685 1.1 741 1.3 797 1.4 858 1.5 917 1.7 966 1.9 1015 2.0 1066 2.23750 653 1.1 709 1.3 764 1.4 821 1.6 884 1.7 933 1.9 982 2.0 1031 2.2 1082 2.34000 679 1.3 735 1.5 790 1.6 647 1.8 903 1.9 952 2.1 1001 2.3 1050 2.44250 707 1.5 762 1.6 818 1.8 875 1.9 924 2.1 973 2.3 1022 2.5 1072 2.74500 737 1.7 792 1.9 850 2.0 899 2.2 948 2.4 997 2.6 1046 2.64750 768 1.9 824 2.1 6n 2.2 926 2.5 975 2.7 1024 2.9 1073 3.05000 601 2.1 856 2.3 906 2.5 956 2.8 1005 3.0 1053 3.2 High Static 3 HP & Field Supplied Drive

1. Airflow perfonnance includes dry evaporatorcoil. See Static Resistance table for additional applications.2. See RPM Selection table to detennine desired motorsheave setting and to detennine the maximum continuous BHP.3. kW = BHP x 0.746 + nameplate rated motorefficiency.

Table 10: NCIND120 HorizontalAvailable External Static Pressure IWG

(CFM) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHPStd. 2 HP & Field Standard 2 HP& Drive High Static 3 HP & DriveSupplied Drive

2500 686 0.8 730 0.9 778 0.9 840 1.0 917 1.3 964 1.5 1011 1.6 1060 1.72750 698 0.9 742 1.0 790 1.0 852 1.1 924 1.4 971 1.6 1019 1.7 1067 1.93000 714 1.0 758 1.1 806 1.1 868 1.2 935 1.6 961 1.7 1029 1.9 1078 2.03250 664 1.0 734 1.2 778 1.2 826 1.3 902 1.6 948 1.7 995 1.9 1042 2.03500 707 1.2 757 1.3 801 1.4 849 1.4 917 1.7 964 1.9 1010 2.0 1058 2.23750 669 1.2 734 1.4 784 1.5 828 1.6 890 1.7 936 1.9 982 2.1 1029 2.2 1076 2.44000 699 1.4 764 1.6 814 1.7 858 1.8 910 2.0 956 2.1 1002 2.3 1049 2.44250 732 1.6 798 1.8 847 1.9 887 2.0 933 2.2 978 2.4 1025 2.5 1071 2.74500 769 1.6 634 2.0 884 2.1 911 2.3 957 2.4 1003 2.6 1049 2.84750 808 2.1 874 2.3 891 2.3 937 2.5 983 2.7 1029 2.9 1075 3.15000 850 2.3 873 2.4 919 2.6 965 2.8 1011 3.0 1057 3.2 High Static 3 HP & Field Supplied Drive

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Table 11: NC/ND180 Upflow

508526-YIM-E-0910

Available External Static Pressure -IWG(CFM) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 IRPM BHP RPM I BHP I RPM BHP I RPM I BHP I RPM BHP RPM I BHP I RPM I BHP I RPM I BHP RPM I BHP I

Std. 3 HP & Field Supplied D ~ Standard 3 HP & Drive High Static 5 HP & Drive4500 583 1.1 634 1.3 688 1.5 738 1.9 782 2.3 827 2.64750 592 1.2 643 1.4 700 1.8 744 2.1 788 2.4 833 2.75000 602 1.2 653 1.4 707 1.9 751 2.2 795 2.6 840 2.95250 613 1.3 664 1.5 716 2.1 759 2.4 804 2.7 848 3.15500 577 1.1 625 1.4 676 1.6 725 2.3 768 2.6 813 2.9 857 3.25750 590 1.2 638 1.4 689 1.7 735 2.5 778 2.8 822 3.16000 603 1.3 651 1.6 702 2.3 745 2.7 789 3.0 833 3.36250 617 1.5 664 1.7 714 2.6 757 2.9 801 3.2 845 3.56500 587 1.4 631 1.6 679 1.8 726 2.8 769 3.1 813 3.4 857 3.86750 601 1.6 645 1.8 693 2.0 739 3.0 782 3.4 826 3.77000 616 1.8 660 2.0 710 2.9 753 3.3 796 3.6 839 3.97250 632 2.1 675 2.3 725 3.2 767 3.6 810 3.9 854 4.27500 647 2.3 691 2.5 740 3.5 782 3.9 825 4.2 High Static 5 HP & Field Supplied Drive1. Airflow perfonnance includes dry evaporator coil. See Static Resistance table for additional applications.2. See RPM Selection table to determine desired motorsheave setting and to detennine the maximum continuous BHP.3. kW =BHP x 0.746 + nameplate rated motor efficiency.

Table 12: NC/ND180 HorizontalAvailable External Stat ic Pressure - IWG

(CFM) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM I BHPStd. 3 HP & Field Supplied D ~ Standard 3 HP & Drive High Static 5 HP & Drive

4500 585 1.5 634 1.6 687 1.8 735 2.0 780 2.5 827 2.7 875 I 2.94750 595 1.6 644 1.7 697 1.9 741 2.4 787 2.7 834 2.95000 605 1.7 655 1.8 708 2.0 749 2.6 795 2.9 842 3.15250 617 1.8 666 2.0 719 2.1 757 2.8 804 3.1 851 3.35500 582 1.8 629 1.9 678 2.1 731 2.3 767 3.0 813 3.2 860 3.45750 594 1.9 642 2.1 691 2.2 737 2.4 778 3.2 824 3.4 871 3.76000 608 2.1 655 2.2 705 2.4 744 3.1 789 3.4 835 3.76250 622 2.2 670 2.4 719 2.6 756 3.3 801 3.6 847 3.96500 589 2.2 637 2.4 684 2.6 733 2.7 769 3.6 814 3.9 860 4.16750 604 2.4 652 2.6 699 2.8 738 3.5 782 3.8 827 4.1 873 4.47000 620 2.6 667 2.8 715 3.0 752 3.8 796 4.1 841 4.4

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508526-YIM-E-091 0

Table 13: NC/ND240 UpflowAvailable External Static Pressure - IWG

(CFM) 0.2 0.4 0.6 I 0.8 1.0 1.2 1.4 I 1.6 I 1.8 2.0 2.2RPM BHP RPM BHP RPM BHP RPM BHP RPMIBHP RPMIBHP RPMIBHPIRPMIBHP RPM BHP RPM BHP RPMIBHP

Std. 5 HP & High Static 5 HP& Drive High Static 7.5 HP & DriveField Supplied Drive6000 732 2.2 789 2.6 846 2.9 900 3.1 959 4.0 1008 4.5 1056 4.9 1102 5.2 114615.36250 685 1.9 742 2.3 799 2.7 856 3.0 910 3.3 967 4.2 1016 4.7 1064 5.1 1110 5.4 1154 5.56500 696 2.1 752 2.5 B09 2.8 866 3.2 920 3.4 976 4.4 1025 4.9 1072 5.3 1118 5.66750 706 2.2 763 2.6 820 3.0 877 3.3 935 4.0 985 4.6 1034 5.1 1081 5.5 1127 5.87000 718 2.4 774 2.8 831 3.2 888 3.5 945 4.2 994 4.8 1043 5.3 1091 5.7 1137 6.07250 729 2.6 786 3.0 843 3.3 900 3.6 954 4.5 1004 5.0 1053 5.5 1100 5.9 1146 6.27500 741 2.8 798 3.1 855 3.5 912 3.8 965 4.7 1014 5.3 1063 5.8 1111 6.27750 700 2.6 754 2.9 810 3.3 868 3.7 925 4.3 975 4.9 1025 5.5 1074 6.0 1121 6.48000 712 2.8 767 3.1 823 3.5 881 3.9 936 4.6 986 5.2 1036 5.8 1085 6.3 1132 6.78250 726 3.0 780 3.3 837 3.7 894 4.1 948 4.9 998 5.5 1047 6.0 1096 6.5 1144 6.98500 740 3.2 794 3.6 850 3.9 908 4.3 959 5.1 1010 5.8 1059 6.3 1108 6.88750 754 3.4 B08 3.8 865 4.2 922 4.8 972 5.4 1022 6.0 1071 6.6 1120 7.19000 768 3.6 823 4.0 879 4.4 934 5.1 984 5.7 1034 6.4 1084 6.9 1133 7.49250 783 3.9 838 4.3 894 4.6 947 5.4 997 6.1 1047 6.7 1097 7.29500 799 4.1 853 4.5 910 4.9 961 5.8 1011 6.4 1061 7.0 1110 7.69750 815 4.4 869 4.8 925 5.5 974 6.1 1024 6.7 1074 7.3 1124 7.910000 831 4.7 885 5.0 939 5.9 988 6.5 1038 7.1 1088 7.7 1138 8.3 High Static 7.5 HP & Field Supplied Drive

1. Airflow perfonnance includes dry evaporator coil. See Static Resistance table for a d d ~ i o n a l applications.2. See RPM Selection table to detennine desired motor sheave setting and to detennine the maximum continuous BHP.3. kW=BHP x 0.746 + nameplate rated motor efficiency.

Table 14: NC/ND240 HorizontalAvai lable External Stat ic Pressure IWG

(CFM) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2RPMIBHP RPM BHP RPM BHPIRPMIBHP RPMIBHP RPM BHP RPMIBHPIRPMIBHPIRPMIBHP RPM BHP RPMIBHPStd. 5 HP &Field Standard 5 HP & Drive High Static 7.5 HP & DriveSuppliedDrive

6000 708 2.0 754 2.3 801 2.6 849 2.8 898 2.9 976 4.0 1021 4.4 1066 4.8 1111 5.1 115515.36250 715 2.1 761 2.4 808 2.7 856 2.9 906 3.0 984 4.2 1029 4.6 1074 5.0 1118 5.3 1163 5.56500 723 2.3 769 2.6 816 2.8 864 3.0 947 3.9 991 4.4 1036 4.8 1081 5.2 1126 5.46750 731 2.4 m 2.7 824 3.0 872 3.2 955 4.1 999 4.6 1044 5.0 1089 5.3 1134 5.6

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Table 15: RPM Selection

508526-YIM-E-0910

Unit Model HP MaxBHP Motor Sheave Blower Sheave 6 Turns 5 Turns 4 Turns 3 Turns 2 Turns 1 Turn FullyOpen Open Open Open Open Open ClosedStd. 1.5 1.73 1VL40 AK69 _1 690 743 796 849 902 955NC090 1 929 1062 1128 1194S 2 2.30 1VL40 AK56 - 863 995

Std. 2 2.30 1VL40 AK74 _1 641 690 739 789 838 887NC/ND120 1 1078S 3 3.45 1VP56 AK84 - 906 949 992 1035 1121Std. 3 3.45 1VP50 AK114 - 565 596 627 659 690 721NC/ND180 2HS 5 5.75 2VP50 285V94 707 745 782 819 856 894 -Std. 5 5.75 2VP50 285V94 686 722 758 794 830 866 _2NC/ND240 HS 7.5 8.63 2VP65 285V94 925 960 996 1031 1067 1103 1138

1. Setting not available.2. Setting not recommended for use with Type 8 v-belts.

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508526-YIM-E-091 0

Table 16: Additional Static ResistanceModel CFM Wet Indoor1 2" Filters Electric Heat kWColi 10 16 26 36 50

2250 0.03 0.10 0.01 0.02 0.03 0.04 -2500 0.03 0.11 0.01 0.02 0.03 0.05 -2750 0.02 0.11 0.01 0.03 0.04 0.07 -

NC090 3000 0.02 0.12 0.01 0.03 0.05 0.08 -3250 0.01 0.13 0.02 0.04 0.06 0.09 -3500 0.00 0.14 0.02 0.04 0.07 0.10 -3750 0.00 0.15 0.02 0.05 0.08 0.12 -3000 0.08 0.12 0.01 0.03 0.05 0.08 -3250 0.07 0.13 0.02 0.04 0.06 0.09 -3500 0.07 0.14 0.02 0.04 0.07 0.10 -3750 0.06 0.15 0.02 0.05 0.08 0.12 -

NC/ND120 4000 0.05 0.16 0.03 0.06 0.09 0.14 -4250 0.04 0.18 0.03 0.06 0.10 0.15 -4500 0.03 0.19 0.03 0.07 0.11 0.17 -4750 0.02 0.21 0.04 0.08 0.13 0.19 -5000 0.00 0.23 0.04 0.09 0.14 0.21 -4500 0.07 0.11 0.03 0.07 0.11 0.17 0.214750 0.06 0.11 0.04 0.08 0.13 0.19 0.225000 0.06 0.11 0.04 0.09 0.14 0.21 0.245250 0.06 0.12 0.05 0.10 0.15 0.23 0.265500 0.05 0.12 0.05 0.11 0.17 0.25 0.295750 0.05 0.12 0.06 0.12 0.19 0.28 0.32

NC/ND180 6000 0.05 0.13 0.06 0.13 0.20 0.30 0.356250 0.04 0.14 0.07 0.14 0.22 0.33 0.386500 0.03 0.14 0.07 0.15 0.24 0.35 0.426750 0.03 0.15 0.08 0.17 0.26 0.38 0.477000 0.02 0.16 0.08 0.18 0.28 0.41 0.507250 0.01 0.16 0.09 0.19 0.30 0.44 0.537500 0.00 0.17 0.10 0.20 0.32 0.47 0.56

CFM Wet Indoor 2" Filters Electric Heat kWModel Coil 20 32 52

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Table 17: Blower Motor And Drive Data

508526-YIM-E-0910

Blower MotorData Drive DataUnit Blower Adjustable Motor Sheave Fixed Blower Sheave BeltsModel HP RPM SF Frame Model RPM Pitch Bore Model Pitch Pitch Desig-Size Number Diameter Number Diameter Bore (in.) Qty. LengthRange (in.) (In.) (In.) (In.) nationNC090 SId 1.5 1725 1.15 56 1VL40 690 - 955 2.4 - 3.4 0.875 AK69 6.5 1.000 1 42.3 A41HS 2 56HZ 1VL40 863 -1194 2.4 - 3.4 0.875 AK56 5.2 1.000 1 40.3 A39

NC/ND120 SId. 2 1725 1.15 56HZ 1VL40 641 - 887 2.4-3.4 0.875 AK74 7.0 1.000 1 45.3 A44HS 3 56HZ 1VP56 906 -1121 4.0 - 5.0 0.875 AK84 8.0 1.000 1 48.3 A47NC/ND180 SId. 3 1725 1.15 56HZ 1VP50 565 -721 2.8 - 3.8 0.875 AK114 11.0 1.000 1 45.3 A44HS 5 184T 2VP50 707 - 894 3.7 -4.7 1.125 285V94 9.7 1.000 2 41.8 840NC/ND240 SId. 5 1725 1.15 184T 2VP50 686 - 866 3.7 - 4.7 1.125 285V94 9.7 1.188 2 41.8 840HS 7.5 213T 2VP65 925-1138 5.2 - 6.2 1.375 285V94 9.7 1.188 2 46.8 845To check the supply air CFM after the init ial balancing hasbeen completed:1. Drill two (2) 5/16-inch holes in the side panel as shown inFigure 24.2. Insert at least 8 inches of 1/4 inch tubing into each of theseholes for sufficient penetration into the airflow on bothsides of the evaporator coil.3. Using an inclined manometer, determine the pressure drop

across a dry evaporator coil. Since the moisture on anevaporator coil may vary greatly, measuring the pressuredrop across the wet coil under field conditions would beinaccurate. To assure a dry coil, the refrigerant systemshould be de-activated while the test is being run.

4. Knowing the pressure drop across a dry coil, the actualCFM through the unit can be determined from the curvesshown in Figure 21.If the CFM is above or below the specified value, the supply airmotor pulley may have to be readjusted. After one hour ofoperation, check the belt and pulleys for tightness andalignment.

After readings have been obtained, remove the tubes and sealup the drilled holes in the side panel. 5/16 inch dot plugs (PIN029-12880) are available from your local Source 1 partsdistribution center.

COIL SECTION

1 1 F ; : ; = ~ = = : J t = l = = l = = : q j 14.50

DRILL lIJ 5/16"

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508526-YIM-E-091 0

PRESSURE DROP ACROSSA DRY INDOOR COIL VS. SUPPLY AIR CFM

..

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Belt TensionThe tension on the belt should be adjusted as shown in Figure22.

(AiBOTH SIDES LOCKNUT(C)

508526-YIM-E-0910

IA CAUTION IProcedure for adjusting belt tension:1. Loosen four nuts (top and bottom) of the Belt Adjust!Motor Mounting Bracket (A).2. Loosen Lock Nut (C).3. Adjust by turn Belt Tensioning Bolt (B).4. Use belt tension checker to apply a perpendicularforce to one belt at the midpoint of the span asshown. Deflection distance of 4mm (5/32") isobtained.To determine the deflection distance from normalposition, use a straight edge from sheave to sheaveas reference line. The recommended deflection forceis as follows:Tension new belts at the max. deflection forcerecommended for the belt section. Check the belttension at least two times during the first 24 hours ofoperation. Any retensioning should fall between themin. and max. deflection force values.

5. After adjusting re-tighten nuts (A) and Lock Nut (C).Twin Bel t Drive AdjustmentCheck to see if both belts drive at the same speed. Do this bymaking a mark across both belts. Turn the drive severalrevolutions by hand. Ifthe mark has not separated, the belts aretraveling at the same speed.Twin groove blower motor pulleys should be installed with theshaft set screw (A) towards the motor (see Figure 23).

B

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508526-YIM-E-0910

Sequence of OperationBlower Sequence of OperationContinuous BlowerSet the room thermostat fan switch to "ON". The 24V signalprovided to the "G1" terminal directly from the thermostat orfrom the condenser I heat pump closes the coil of the fan motorrelay (BR1).

Relay BR1 controls the coil for contactor M1. Contactor M1 controls the indoorfan motor FM 1.

Intermittent BlowerSet the room thermostat fan switch to "AUTO" and set thesystem switch to "AUTO" or "HEAr'. During a call for cooling orheating, the 24V signal provided to the "G1" terminal directlyfrom the thermostat or from the condenser I heat pump closesthe coil of the fan motor relay (BR1).

Relay BR1 controls the coil for contactor M1. Contactor M1 controls the indoorfan motor FM 1.

Cooling Sequence of OperationSingle Stage Evaporator Unit (NC090)No addition input signal is required to operate the evaporatorunit during cooling (See Figures 7 and 11). The evaporator coiloperates with only one system of cooling.Dual Stage, 2-Pipe Evaporator Unit (NC120-240)When the thermostat calls for the first stage of cooling (Y1), a24V signal is provided to the "S1" terminal directly from thecondenser I heat pump (See Figures 8 and 12). This signalcloses the coil of the solenoid control relay (RY1). The

Twin Single Stage Evaporator Unit (NC090)A dual-stage, four-pipe condenser I heat pump is required tooperate this twin, single stage evaporator unit combination.Independent "G" calls are required to operate the blowers. Noother input signals are required to operate the evaporator unitsduring cooling (See Figure 18).Twin Dual Stage, 2-Pipe Evaporator Units (NC120-240)A dual-stage, four-pipe condenser I heat pump is required tooperate this twin, dual-stage evaporator unit combination.Corresponding calls for cooling and bloweroperation connect tothe "51" and "G1" terminals, respectively, of each evaporatorunit's control box terminal block (TB2) (See Figure 15). Noother input signals are required for cooling operation. Eachevaporator coil operates both fully intertwined systems ofcooling.NOTE: Relay RY2 must be removed from each evaporatorunit's control circuit. Solenoid valve 1LLS must bewired directly to relay RY1. When thematching systemcompressor is operating, the solenoid valve opens.Twin Condensers, Single 4-Pipe Evaporator Unit(ND120-240)Twin two- pipe condensers I heat pumps are required tooperate this single, 4-pipe evaporator unit combination. A "G"call from either condenser I heat pump operates the blower(See Figure 17). No other input signal is required for coolingoperation. The evaporator coil operates with two independent,fully intertwined systems of cooling.MaintenanceFilters must be cleaned or replaced as often as necessary toassure good airflow and filtering action.

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508526-YIM-E-0910

Top View

37

'" 1.718 KNOCKOUT FOR ' " ' \ , . I---- 20.313 ~LECTRIC HEAT.. .: f . ~ . 10 8'if 8 ~ tT.9201.135 ... .f l- 14.590 18.628 -

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'" 1.72 KNOCKOUT ' " ' \ , . ----- 20.31 ---- jELECTRIC HEAT. :1 . ~ .. 8.0 I1 m ~ fT . 912f I-8.22 .L .. ...~ 17.59 15.63 -TOP V1'eN - BLOWER OUTlET

NC090 INOOORTOP VI'eN - BLOWER OUTLETNClNDl20 INDOOR

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508526-YIM-E-0910

Horizontal Configuration

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Figure 24: Unit Dimensions NC090/120 & ND120 (Continued)

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508526-YIM-E-0910

Top ViewIi'! 1.718 KNOCKOUT FOR \ 23.85 -,LECTRIC HEAT

1'>' . \ ,-/. f\. 0 10.00 .. .'"

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112" CONDUITKNOCKOUT'" 0.875CONTROLS ACCESS

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508526-YIM-E-0910


000

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Figure 25: Unit Dimensions NC/ND180 (Continued)

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508526-YIM-E-091 0

Top View

oOPENING

1/4" CO UIT NOC 0-NO K K U1\

(01718;\ (01.718)ELECTRIC HEAT CONTROL ELECTRIC HEAT POWER 22.86 IIRE CONNECTION CONNECTIOND \ \ I "%. \. \ 8. b .0 0

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1-114" CONDUITKNOCKOUT../ L 1-1/4" CONDUITKNOCKOU(01.718) (01.718)ELECTRIC HEAT POWER ELECTRIC HEAT CONTROLCONNECTION WIRE CONNECTIONI--- 18.63 25.30

8LOWER OPENINGI - - 18.63 54.57BLOWEROPENING 75.64

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508526-YIM-E-0910


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Figure 26: Unit Dimensions NC/ND240 (Continued)Table 18: Piping, Electrical and Duct Opening Connection SizesMODEL NC090 NC120 ND120 NC180 ND180 NC240 ND240

SYSTEM DATANo. Refrigeration Circuits 1 1 2 1 2 1 2Suction Line OD (in.) 1 1/8 1318 1 1/8 15/8 13/8 1 5/8 13/8Liquid Line OD (in.) 518 718 518 7/8 5/8 7/8 7/8

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