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40RU
PackagedAir---HandlingUnits
60Hz
R
WithPuron (R---410A)Refrigerant
Sizes25,28,30
Installation,Start---Upand
ServiceInstructions
Chilled Water Coil Freeze Protection ........... 26
TABLE OF CONTENTS
Coil Removal .............................. 26
SAFETY CONSIDERATIONS ................... 1
Cleaning Cooling Coil ....................... 26
PRE--INSTALLATION ......................... 2
Cleaning Insulation ......................... 26
Moving and Storage .......................... 2
Replacing Filt
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PRE--INSTALLATION ! WARNING 1. The power supply (v, ph, and Hz) must correspond to that specified on unit rating plate. ELECTRICAL SHOCK HAZARD 2. The electrical supply provided by the utility must be Failure to follow this warning could cause in personal sufficient to handle load imposed by this unit. injury or death. 3. Refer to Installation, General section (page 2) and Before performing service or maintenance operations Fig. 1 and Fig. 2 for locations of electrical inlets, con- on unit, alwa
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Table 1A — 40RUA Physical Data, English — Cooling Units UNIT40RUA* 25 28 30 NOMINALCAPACITY (Tons) 20 25 30 OPERATINGWEIGHT(lb) BaseUnitwithTXV 730 1050 1062 Plenum 225 325 325 FANS Qty...Diam.(in.) 2...15 2...18 2...18 NominalAirflow(cfm) 8000 10000 12000 AirflowRange(cfm) 6000– 10000 7500– 12500 9000– 15000 NominalMotorHp(StandardMotor) 208/230---3---60and460---3---60 5.0 7.5 10.0 575---3---60 5.0 7.5 10.0 MotorSpeed(rpm) 208/230---3---60and460---3---60 1745 1745 1745 575---3---60 1745 1755 17
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Table 1B — 40RUA Physical Data, SI — Cooling Units UNIT40RUA* 25 28 30 NOMINALCAPACITY (kW) 70 87 105 OPERATINGWEIGHT(kg) BaseUnitwithTXV 331 477 482 Plenum 102 148 148 FANS Qty...Diam.(mm) 2...381 2...457 2...457 NominalAirflow(L/s) 3775 4119 5663 AirflowRange(L/s) 2831– 4719 3539– 5899 4247– 7079 NominalMotorkW(StandardMotor) 208/230---3---60and460---3---60 3.73 5.60 7.46 575---3---60 3.73 5.60 7.46 MotorSpeed(r/s) 208/230---3---60and460---3---60 29.1 29.1 29.1 575---3---60 29.1 29.3 29.3 REFR
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Table 1C — 40RUQ Physical Data, English — Heat Pump Units UNIT40RUQ* 25 NOMINALCAPACITY (Tons) 20 OPERATINGWEIGHT(lb) BaseUnitwithTXV 720 Plenum 140 FANS Qty...Diam.(in.) 2...15 NominalAirflow(cfm) 8000 AirflowRange(cfm) 6000---10000 NominalMotorHp(StandardMotor) 208/230---3---60and460---3---60 5.0 575---3---60 5.0 MotorSpeed(rpm) 208/230---3---60and460---3---60 1745 575---3---60 1745 REFRIGERANT R---410A Operatingcharge(lb) 3.5/3.5 { (approxpercircuit) DIRECT---EXPANSIONCOIL Enhanced CopperTube
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Table 1D — 40RUA Physical Data, SI — Heat Pump Units UNIT40RUQ* 25 NOMINALCAPACITY (kW) 70 OPERATINGWEIGHT(kg) BaseUnitwithTXV 326 Plenum 44 FANS Qty...Diam.(mm) 2...381 NominalAirflow(L/s) 3775 AirflowRange(L/s) 2831---4719 NominalMotorkW(StandardMotor) 208/230---3---60and460---3---60 3.73 575---3---60 3.73 MotorSpeed(r/s) 208/230---3---60and460---3---60 29.1 575---3---60 29.1 REFRIGERANT R---410A Operatingcharge(kg) 1.59/1.59 { (approxpercircuit) DIRECT---EXPANSIONCOIL Enhanced CopperTubes,Alu
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Table 1E — 40RUS Physical Data, English — Chilled Water Units UNIT40RUS* 25 28 30 NOMINALCAPACITY (Tons) 20 25 30 OPERATINGWEIGHT(lb) BaseUnit 683 1035 1042 Plenum 225 325 325 FANS Qty...Diam.(in.) 2...15 2...18 2...18 NominalAirflow(cfm) 8000 10000 12000 AirflowRange(cfm) 6000– 10000 7500– 12500 9000– 15000 NominalMotorHp(StandardMotor) 208/230---3---60and460---3---60 5.0 7.5 10.0 575---3---60 5.0 7.5 10.0 MotorSpeed(rpm) 208/230---3---60and460---3---60 1745 1745 1745 575---3---60 1745 1755 175
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Table 1F — 40RUS Physical Data, SI — Chilled Water Units UNIT40RUS* 25 28 30 NOMINALCAPACITY (kW) 70 87 105 OPERATINGWEIGHT(kg) BaseUnit 310 469 473 Plenum 102 148 148 FANS Qty...Diam.(mm) 2...381 2...457 2...457 NominalAirflow(L/s) 3775 4719 5663 AirflowRange(L/s) 2831– 4719 3539– 5899 4247– 7079 NominalMotorkW(StandardMotor) 208/230---3---60and460---3---60 3.73 5.60 7.46 575---3---60 3.73 5.60 7.46 MotorSpeed(r/s) 208/230---3---60and460---3---60 29.1 29.1 29.1 575---3---60 29.1 29.3 29.3 CHILL
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LEGEND TXV — Thermostatic Expansion Valve NOTES: 1. Dimensions in [ ] are in millimeters. 2. Direction of airflow. 3. Recommended clearance: • Rear: 3 in. [914 mm] (2 ft, 6 in. [762 mm] with electric heat accessory) � Front: 2 ft, 6 in. [762 mm] � Right Side: 2 ft, 6 in. [762 mm] � Left Side: 2 ft, 6 in. [762 mm] � Local codes or jurisdiction may prevail. 4. Liquid piping not supplied by Carrier. 5. Duct flange is factory supplied and field installed. UNIT WEI
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LEGEND TXV — Thermostatic Expansion Valve NOTES: 1. Dimensions in [ ] are in millimeters. 2. Direction of airflow. 3. Recommended clearance: � Rear: 3 in. [914 mm] (2 ft, 6 in. [762 mm] with electric heat accessory) � Front: 2 ft, 6 in. [762 mm] � Right Side: 2 ft, 6 in. [762 mm] � Left Side: 2 ft, 6 in. [762 mm] � Local codes or jurisdiction may prevail. 4. Liquid piping not supplied by Carrier. 5. Duct flange is factory supplied and field installed. 6. 40RUS
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 40 R U A A 25 A 1 A 6 – 0 A 0 A 0 _____________ ____ ModelType Brand/Packaging 40RU = Carrier Fan Coil 0=Standard Puronr R–410ARefrigerant NotUsed Type of Coil A=PlaceHolder A = StandardDXCoil Q = Heat Pump ServiceOptions S = Chilled Water Coil 0 = Non-Painted Cabinet 1 = Painted Cabinet RefrigerantOptions A = None NotUsed A=PlaceHolder NominalTonnage 25 = 20 Tons NotUsed 28 = 25 Tons 0=PlaceHolder 30 = 30 Tons DesignRev NotUsed – = Catalog Model Numb
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Typical positioning and alternate return air locations are preferred suspension technique. The unit needs support shown in Fig. 6. Alternate return air locations can be used underneath to prevent sagging. by moving the unit panel from the alternate return air IMPORTANT: Do NOT attempt to install unit with return location to the standard return air location. Refer to air entering top panel of unit. Condensate will not drain from overhead suspension accessory drawing (Fig. 7) for unit. OVERHEAD SU
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Unit Isolation -- Where extremely quiet operation is The 40RU direct--expansion units have internal essential, install isolators between floor and base of unit, factory--installed thermostatic expansion valves (TXVs), or between ceiling and top section of unit. distributors, and nozzles for use with R--410A. See Table 2 for part numbers. Knockouts are provided in the unit Be sure that unit is level and adequately supported. Use corner posts for 40RU refrigerant piping. See Fig. 8, channels at fr
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EQUALIZER LINE TXV UPPER SENSING SPLIT BULB SOLENOID VALVE SIGHT TXV AIRFLOW GLASS 15 DIAMS 10 MIN DIAMS 8 DIAMS MIN EQUALIZER LINE FILTER TXV DRIER SENSING LOWER BULB SPLIT TXV AIRFLOW 15 DIAMS MIN 10 DIAMS 8 DIAMS MIN INDOOR COIL LEGEND: TXV – Thermostatic Expansion Valve NOTE: Component location arrangemetshown for field installation of sight glasses, solenoid valves, filter driers, and TXV sensing bulbs. The TXVs and equilizer lines are factory installed. C10726 Fig. 9 -- Face--Split Coil
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Table 2 – Factory--Installed Nozzle and Distributor Data FEEDER TUBES COILTYPE TXV DISTRIBUTOR NOZZLE { UNIT PER DISTRIBUTOR STD Qty...PartNo. Qty...PartNo. Qty...PartNo. Qty...Size (in.) 3 3 40RUA*25 4Row 2...BBIZE---8---GA 2...D196---18--- / 18... / 2...G6 16 16 3 40RUA*28 4Row 2...BBIZE---15---GA 2...1126 20... / 2...C15 16 3 40RUA*30 4Row 2...BBIZE---15---GA 2...1126 24... / 2...C17 16 3 3 40RUQ*25 4Row 2...BBIZE---12.5---GA 2...113---12--- / 2---12... / 2...G8 16 16 { 1 Feeder tube size is
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Table 3 — Fitting Requirement (cont) † ACCESS CONNECTION FITTINGSREQUIRED UNIT CIRCUIT } HOLENO. TYPE (in.) 3 1 / StreetElbow 8 3 1 / Nipple,11L 1 Suction Lower 8 3 1 / Long RadiusElbow 8 5 / StreetElbow 8 5 1 / Nipple,1 / L 2 Liquid Lower 8 2 5 / Long RadiusElbow 8 5 / StreetElbow 40RUA*28 8 5 1 / Nipple,19 / L 3 Liquid Upper 8 2 5 / Long RadiusElbow 8 3 3 1 / Nipple,4 / L 8 16 3 1 / Long RadiusElbow 8 4 Suction Upper 3 1 1 / Nipple,23 / L 8 4 3 1 / Long RadiusElbow 8 1 2 / Long RadiusElbow 8 1
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Chilled Water Piping -- See Tables 1E and 1F for chilled To size, design, and install chilled water piping, consult water connection sizes. For ease in brazing, it it the Carrier System Design manual. See Fig. 12 for an recommended that all internal solder joints be made example of a typical installation. Recommended fittings before unit is placed in final position. are listed in Table 3. Knockouts are provided in the unit corner posts for To access 40RUS coil vents and drains, remove the unit 4
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Condensate Drain -- Install a trapped condensate drain line to unit connection as shown in Fig. 13. The unit drain connection is a PVC stub. See Fig. 14. Some areas may require an adapter to connect to either galvanized steel or copper pipe. For these applications, install a field--supplied threaded PVC adapter. 3” MIN. [76] C10692 Fig. 14 -- Drain Pan Slope Adjustment As shipped, the unit’s condensate drain pan is NOT sloped towards the drain connection. The pan slope must be changed to pitch t
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21 22 23 Power Supply and Wiring -- Check the unit data plate to FAN SCROLL FAN ensure that available power supply matches electrical CONTACTOR characteristics of the unit. Provide a disconnect switch BOX MOTOR with an integrated lock--out feature of size required to WIRE AND DRIVE ACCESS provide adequate fan motor starting current. See Tables 4--6 for unit electrical data. FAN DRIVE CONDENSATE PULLEY DRAIN CONNECTION ! WARNING (HORIZONTAL) COIL ELECTRICAL SHOCK HAZARD Failure to follow this war
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Table 4 – Electrical Data, Standard Motors FANMOTOR POWERSUPPLY VOLTAGE { UNIT V---PH---Hz Minimum LIMITS Hp(kW) FLA MOCP CircuitAmps 208/230---3---60 187---253 5.0(3.73) 14.7/13.6 18.4/17.0 30/25 40RUA*25 460---3---60 414---506 5.0(3.73) 6.8 8.5 15 40RUQ*25 40RUS*25 575---3---60 518---632 5.0(3.73) 5.1 6.4 15 208/230---3---60 187---253 7.5(5.59) 21.4/19.4 26.9/24.3 45/40 40RUA*28 460---3---60 414---506 7.5(5.59) 9.7 12.1 20 40RUS*28 575---3---60 518---632 7.5(5.59) 7.8 9.8 15 208/230---3---60 1
