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Carrier Comfort 50VT C Series, Installation Instructions Manual

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Carrier Comfort 50VT C Series Installation Instructions Manual Download Page 30

30

OUTDOOR FAN

RELAY

Y OUTPUT TO PRESSURE

SWITCHES AND CONTACTOR

THERMOSTAT INPUTS

T1 - ENABLES DEFROST 
       TIMER.MUST BE 
       ENERGIZED FOR 
       DEFROST TIMER 
       TO START 

C - COMMON

O - REVERSING VALVE

SPEEDUP

DEFROST  THERMOSTAT

MUST BE CLOSED BEFORE

DEFROST TIMER BEGINS

A150622

Fig. 19 -- Defrost Control

50V

T

--

C

Summary of Contents for Comfort 50VT C Series

Page 1: ...Charge 18 Indoor Airflow Airflow Adjustments 18 Continuous Fan Operation 19 Defrost Control 20 Defrost 20 MAINTENANCE 28 33 Air Filter 28 Indoor Blower and Motor 28 Outdoor Coil Indoor Coil Condensate...

Page 2: ...panel removal process may require the unit to be on the ground Step 2 Provide Unit Support Roof Curb Install accessory roof curb in accordance with instructions shipped with curb See Fig 4 Install ins...

Page 3: ...3 Fig 2 24 30 Unit Dimensions 50VT C...

Page 4: ...4 Fig 3 36 60 Unit Dimensions 50VT C...

Page 5: ...UNIT SIZE CATALOG NUMBER A IN mm B small common base IN mm B large base IN mm C IN mm D IN mm E IN mm F IN mm G IN mm H IN mm Small or Large CPRFCURB011A00 14 356 10 254 14 356 16 406 47 8 1214 32 4...

Page 6: ...kinds of loads 2 Instruction in any special operation or precaution 3 Condition of the load as it relates to operation of the lifting kit such as balance temperature etc Follow all applicable safety...

Page 7: ...r limit switches may trip at air quantities below those recommended 4 Seal insulate and weatherproof all external ductwork Seal insulate and cover with a vapor barrier all ductwork passing through con...

Page 8: ...to prevent the pan from overflowing Connect a drain tube using a minimum of field supplied 3 4 in PVC or field supplied 3 4 in copper pipe at outlet end of the 2 in 51 mm trap See Fig 9 Do not unders...

Page 9: ...es so that they do not interfere with operation of unit A gray wire is standard on 3 phase units for connection to an economizer If an accessory electric heater is installed low voltage leads from hea...

Page 10: ...0 254 x 254 1 2 1000 10 x 10 254 x 254 1 2 1200 11 x 10 279 x 254 1 2 1350 11 x 10 279 x 254 1 2 1600 11 x 10 279 x 254 1 1750 11 x 10 279 x 254 1 High Pressure Switch psig Cutout Reset Auto 650 15 42...

Page 11: ...11 A150518 Fig 12 Connection Wiring Schematics 208 230 1 60 50VT C...

Page 12: ...12 A150519 Fig 12 Cont Ladder Wiring Schematics 208 230 1 60 50VT C...

Page 13: ...13 A150520 Fig 13 Connection Wiring Schematics 208 230 3 60 50VT C...

Page 14: ...14 A150521 Fig 13 Cont Ladder Wiring Schematics 208 230 3 60 50VT C...

Page 15: ...15 A150522 Fig 14 Connection Wiring Diagram 460 3 60 50VT C...

Page 16: ...16 A150523 Fig 14 Cont Ladder Wiring Diagram 460 3 60 50VT C...

Page 17: ...RT UP Checking Cooling and Heating Control Operation Start and check the unit for proper control operation as follows 1 Place room thermostat SYSTEM switch or MODE control in OFF position Observe that...

Page 18: ...and high pressure gauge hoses to low and high pressure service fittings respectively 3 Start unit and let run until system pressures stabilize 4 Measure and record the following a Outdoor ambient air...

Page 19: ...ire on the LOW connection on the interface board IFB Verify that static pressure is in the acceptable range for the speed tap to be used for dehumidification cooling 7 Use any spare vinyl plugs to cap...

Page 20: ...nd standard defrost speed up capability This section describes the sequence of operation and trouble shooting methods for this control Defrost Sequence The defrost control is a time temperature contro...

Page 21: ...CFM 1187 1124 1061 996 930 896 840 776 698 610 BHP 0 36 0 36 0 37 0 37 0 38 0 38 0 39 0 39 0 39 0 40 36 Low Blue CFM 1117 1042 969 893 869 802 741 677 590 582 BHP 0 17 0 18 0 19 0 19 0 21 0 21 0 22 0...

Page 22: ...0 74 0 69 60 Low Blue CFM 1330 1277 1232 1191 1147 1103 1060 1004 963 919 BHP 0 26 0 27 0 29 0 30 0 31 0 32 0 33 0 34 0 36 0 37 Med Low Pink CFM 1475 1436 1399 1351 1317 1270 1236 1188 1152 1105 BHP 0...

Page 23: ...75 1198 1139 1085 1023 48 Low Blue CFM 1402 1351 1311 1263 1224 1172 1136 1080 1041 Med Low Pink CFM 1457 1404 1367 1318 1284 1233 1197 1144 1104 Medium 1 Red CFM 1736 1695 1642 1601 1553 1512 1465 14...

Page 24: ...34 0 35 0 37 0 37 High Black CFM 1536 1470 1405 1333 1263 1204 1239 1181 1122 1055 WATTS 411 423 429 441 453 464 473 477 488 489 BHP 0 44 0 45 0 46 0 47 0 49 0 50 0 51 0 51 0 52 0 52 42 Low Blue CFM...

Page 25: ...60 Low Blue CFM 1479 1436 1387 1346 1298 1253 1206 1160 1114 1061 WATTS 224 239 247 262 270 284 300 307 319 330 BHP 0 24 0 26 0 26 0 28 0 29 0 30 0 32 0 33 0 34 0 35 Med Low Pink CFM 1841 1796 1761 1...

Page 26: ...00 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 24 0 03 0 04 0 04 0 05 0 06 30 0 05 0 06 0 07 0 08 0 11 36 0 06 0 06 0 09 0 10 0 11 0 14 42 0 05 0 05 0 06 0 07 0 08 0 08 0 09 0 09 0 11 48 0...

Page 27: ...0 00 0 02 0 04 0 06 0 08 0 09 0 11 0 13 0 15 0 17 0 19 Electric Heat Pressure Drop Table in W C Large Cabinet 36 60 STATIC STANDARD CFM SCFM 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200...

Page 28: ...air filter s at least once each month and replace throwaway type or clean cleanable type at least twice during each cooling season and twice during the heating season or whenever the filter becomes cl...

Page 29: ...under these conditions using the superheat method Weigh in method should be used A150625 To properly check or adjust charge conditions must be favorable for subcooling charging Favorable conditions e...

Page 30: ...ITCHES AND CONTACTOR THERMOSTAT INPUTS T1 ENABLES DEFROST TIMER MUST BE ENERGIZED FOR DEFROST TIMER TO START C COMMON O REVERSING VALVE SPEEDUP DEFROST THERMOSTAT MUST BE CLOSED BEFORE DEFROST TIMER B...

Page 31: ...r to the unit Remove access panels see Fig 22 to locate all the electrical controls and wiring Check all electrical connections for tightness Tighten all screw connections If any discolored or burned...

Page 32: ...ontinuity on a good switch Step 11 Copeland Scroll Compressor Puron Refrigerant The compressor used in this product is specifically designed to operate with Puron R 410A refrigerant and cannot be inte...

Page 33: ...Line Filter Drier The biflow filter drier is specifically designed to operate with Puron Use only factory authorized components Filter drier must be replaced whenever the refrigerant system is opened...

Page 34: ...ils S Vacuum pumps will not remove moisture from oil S Do not use liquid line filter driers with rated working pressures less than 600 psig S Do not leave Puron suction line filter driers in line long...

Page 35: ...Defective run start capacitor overload or start relay Determine cause and replace Defective thermostat Replace thermostat Faulty condenser fan motor or capacitor Replace Restriction in refrigerant sys...

Page 36: ...TIGHTNESS III START UP ELECTRICAL SUPPLY VOLTAGE COMPRESSOR AMPS INDOOR EVAPORATOR FAN AMPS TEMPERATURES OUTDOOR CONDENSER AIR TEMPERATURE DB RETURN AIR TEMPERATURE DB WB COOLING SUPPLY AIR DB WB HEAT...

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