Carrier 50CR Manuel d'utilisateur

150CRInfinityt Single--Packaged Heat Pump UnitsWith Puron®(R--410A) RefrigerantSizes 024--060Installation InstructionsNOTE: Read the entire instructio

10Table 1—Physical Data -- Unit 50CRUNIT SIZE 024 030 036 042 048 060NOMINAL CAPACITY (ton) 2 2--1/2 3 3-- 1/2 4 5OPERATING WEIGHT (lb.) 350 350 373 4

11Duct CoversA05301Fig. 11 -- 50CR with Duct Covers On1” (25mm) MIN.2” (50mm) MIN.TRAPOUTLETC99013Fig. 12 -- Condensate TrapStep 7—Install Electrical

12Table 2—Electrical Data—50CRUNIT SIZEV--PH--HZVOLTAGERANGECOMPRESSOR OFMFLAIFMFLAELECTRIC HEATSINGLE POINT POWERSUPPLYNOMINALFLA MCA MOCPMIN MAX RLA

13228 =1v229 =2v227 =2vLEGEND FLA — Full Load AmpsLRA — Locked Rotor AmpsMCA -- Minimum Circuit AmpsMOCP — Maximum Overcurrent ProtectionRLA

147.0A05304Fig. 15 -- Wiring Schematics--50CR Single Phase50CR

155.0A05259Fig. 16 -- Wiring Schematics--50CR Three Phase50CR

16GROUND SCREW(IN SPLICE BOX)BLUYELBLKGROUNDLEADSINGLE-PHASECONNECTIONSTO DISCONNECTPER NEC3-PHASECONNECTIONSLEGENDNEC – National Electrical CodeFiel

17SEC-2 SEC-1F15HK38EA002ABCD1COMM11OAT HUM C W O Y RHEATER1MOTORSTATUSA03169Fig. 19 -- Detail of Printed Circuit BoardPRE--START--UP

1810 seconds). Once communications with User Interface aresuccessful, COMM LED will be lit and held on. At the same time,amber STATUS LED will be lit

19When the motor is commanded to stop, the MOTOR LED will beturned off. The MOTOR LED will not flash to indicatecommunications when it is turned off.U

2SAFETY CONSIDERATIONSInstallation and servicing of this equipment can be hazardous due tomechanical and electrical components. Only trained and quali

20Check system wiring to be sure the User Interface is powered andconnections are made A to A, B to B, etc., and wiring is not shorted.Mis-- wiring or

21COMPRESSORACCUMULATOROUTDOOR COILINDOOR COILLCSLEGENDHPS – High Pressure SwitchLCS – Loss of Charge SwitchAccurater ® Metering De viceArrow indic

22CHECKING AND ADJUSTING REFRIGERANT CHARGEThe refrigerant system is fully charged with Puron (R-- 410A)refrigerant and is tested and factory sealed.N

2375 (24) 82 (28) 85 (29) 95 (35) 105 (41)Pressure(psig)5 10152025Pressure (kPa)3 6 8 11 14024 10.3 ( 5.7 ) 9.8 ( 5.4 ) 9.4 ( 5.2 ) 9 ( 5 ) 8.6 ( 4.7

24Table 6—Electric Heat Pressure Drop TableLarge Cabinet: 042 -- 060CFM1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 25005kw 0

25The minimum maintenance requirements for this equipment are asfollows:1. Inspect air filter(s) each month. Clean or replace whennecessary.2. Inspect

26Balance Point Worksheet010203040506070-20 -10 0 10 20 30 40 50 60Outdoor Air Temp (Deg F)Building Heat Loss, 1000BTUH Unit Integrated Heating Capaci

27airflow across indoor coil, dirty filters, etc. It opens on a pressuredrop at about 20 psig. If system pressureisabovethis, switchshouldbe closed. T

28Step 14—System InformationLOSS --OF-- CHARGE SWITCHThe loss of charge switch is a protective device wired into controlcircuit (low voltage). It shut

29HEAT PUMP WITH PURONREFRIGERATION SECTION QUICK --REFERENCE GUIDEPuron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure t

3Gask et aroundouter edgeInsulateddeck panGask et aroundductS/AR/AHVAC unitbase*Gask etingouter flangeFlashing fieldsuppliedRoofing materialfield

30Table 7—Troubleshooting ChartSYMPTOM CAUSE REMEDYCompressor and outdoor fanwill not startPower failure Call power companyFuse blown or circuit break

31Table 7—Troubleshooting Chart (Cont’d)SYMPTOM CAUSE REMEDYHead pressure too lowLow refrigerant charge Check for leaks, repair and rechargeRestrictio

32START-UP CHECKLIST(Remove and Store in Job File)I. Preliminary InformationMODEL NO.:_________________________________SERIAL NO.:____________________

4ABCMAXIMUM ALLOWABLEDIFFERENCE (in.)A-B B-C A-C1/4 1/4 1/4C99065Fig. 3 -- Unit Leveling TolerancesOPTIONALRETURNAIROPENINGOPTIONALSUPPLYAIROPENINGEVA

5A05299Fig. 6 -- 50CR024 -- 036 Unit Dimensions50CR

6A05300Fig. 7 -- 50CR042 -- 060 Unit Dimensions50CR

7Step 4—Rig and Place UnitRigging and handling of this equipment can be hazardous for manyreasons due to the installation location (roofs, elevated st

8DETAIL A C03017Fig. 8 -- Rigging Bracket Under Unit Rain LipA06113UNIT SIZEMAXIMUM SHIPPING WEIGHTLb Kg50CR024 372 16950CR030 372 16950CR036 395 1795

9Step 5—Select and Install DuctworkThe design and installation of the duct system must be in accordancewith the standards of the NFPA for installation