background image

36

START--UP CHECKLIST

(Remove and Store in Job Files)

I. PRELIMINARY INFORMATION

MODEL NO.:
SERIAL NO.:
DATE:
TECHNICIAN:

II. PRESTART--UP (Insert check mark in box as each item is completed)

( ) VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT
( ) REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS
( ) CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS
( ) CHECK THAT INDOOR (EVAPORATOR) AIR FILTER IS CLEAN AND IN PLACE
( ) VERIFY THAT UNIT INSTALLATION IS LEVEL
( ) CHECK FAN WHEEL, AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW 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 PUMP SUPPLY AIR _____________________
ELECTRIC HEAT SUPPLY AIR _____________

PRESSURES

REFRIGERANT SUCTION

PSIG, SUCTION LINE TEMP*

REFRIGERANT DISCHARGE

PSIG, LIQUID TEMP

{

( ) VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS

* Measured at suction inlet to compressor

{

Measured at liquid line leaving condenser.

Copyright 2018 Carrier Corp.

S

7310 W. Morris St.

S

Indianapolis, IN 46231

Edition Date: 05/18

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Catalog No: 50VT---15SI

Replaces: 50VT--- 14SI

50V

T

--

C

Содержание Comfort 50VT C Series

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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

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

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Отзывы: