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START-UP CHECKLIST

(REMOVE AND STORE IN JOB FILE)

I. PRELIMINARY INFORMATION

Model No .............................................................................................................................................................
Serial No ..............................................................................................................................................................
Date .....................................................................................................................................................................
Technician ...........................................................................................................................................................

II. PRE-START-UP

____ Verify that all packing materials have been removed from unit
____ Remove all shipping holddown bolts and brackets per installation instructions
____ Verify that condensate connection is installed 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 propeller for location in housing and setscrew tightness

III. START-UP

Supply Voltage: L1-L2 __________ L2-L3 __________ L3-L1 __________
Compressor Amps: L1 __________ L2 __________ L3 __________
Indoor Fan Amps: __________

Outdoor Motor Amps _______________

AIR TEMPERATURE

Outdoor-Air Temperature: __________ DB
Return-Air Temperature: __________ DB __________ WB
Heating Mode: Heat Pump Supply Air: __________ DB __________ WB

Cooling Mode: Supply Aire Temperature __________ DB __________WB
Electric Heater Supply Air: __________

REFRIGERANT PRESSURES AND TEMPERATURES

Refrigerant Suction __________ psig
Refrigerant Discharge __________ psig
Suction Line Temp*__________
Discharge Line Temp† __________
Liquid Line Temp‡ __________
____ Verify Refrigerant charge using charging tables
____ Verify that 3-phase scroll compressor is rotating in correct direction.

* Measured at suction inlet to compressor

† Measured at discharge outlet from compressor.

‡ Measured at liquid line leaving condenser

Copyright 2002 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231

50jzc1si

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

Book 1 4

Tab 5a 5a

PC 101

Catalog No. 005-00008

Printed in U.S.A.

Form 50JZ-C1SI

Pg 28

2–02

Replaces: New

Содержание 50JZ 024-060

Страница 1: ...e air conditioning equipment Untrained personnel can perform basic maintenance functions of cleaning coils and filters All other operations should be performed by trained service personnel When workin...

Страница 2: ...cant strips roofing and flashing Ductwork must be attached to curb IMPORTANT The gasketing of the unit to the roof curb is critical for a watertight seal Install gasketing material supplied with the r...

Страница 3: ...ER OF GRAVITY IN MM lb kg X Y Z 50JZ024 400 3 50 299 135 6 35 02 889 5 19 0 482 6 18 3 463 6 16 0 406 4 50JZ030 400 3 50 320 145 2 37 02 940 3 20 0 508 0 19 3 489 0 17 6 447 0 50JZ036 400 3 50 328 148...

Страница 4: ...50JZ 048 Unit Dimensions UNIT ELECTRICAL CHARACTERISTICS UNIT WEIGHT UNIT HEIGHT IN MM A CENTER OF GRAVITY IN MM lb kg X Y Z 50JZ048 400 3 50 355 161 0 40 98 1040 9 20 0 508 0 21 3 539 8 18 0 457 2 C0...

Страница 5: ...e b Feed strapping through tension buckle as shown in Fig 8 c Pull strapping through tension buckle unit taut d Snap lever down to lock strap in tension buckle To release strapping squeeze safety latc...

Страница 6: ...must also be used when required by code for hurricane or seismic conditions This bracket is available through Micrometl C00076 Gasket around outer edge Insulated deck pan Gasket around duct S A R A HV...

Страница 7: ...C99065 A B C MAXIMUM ALLOWABLE DIFFERENCE in A B B C A C 1 4 1 4 1 4 Fig 7 Slab Mounting Detail C99096 OPTIONAL RETURN AIR OPENING OPTIONAL SUPPLY AIR OPENING EVAP COIL COND COIL 2 Fig 8 Threading Be...

Страница 8: ...ng Contractors National Association SMACNA and Air Conditioning Contractors Association ACCA mini mum installation standards for residential heating and air conditioning systems 5 Secure all ducts to...

Страница 9: ...Motor HP 800 10x10 1 2 1000 10x10 1 4 1200 10x10 1 2 1600 11x10 1 RETURN AIR FILTERS in throwaway 20x20x1 20x20x1 20x24x1 24x30x1 Required filter sizes shown are based on the larger of the ARI Air Con...

Страница 10: ...2 in 50 8 mm trap See Fig 12 Do not undersize the tube Pitch the drain trough downward at a slope of at least 1 in 25 4 mm every 10 ft 3 05 m of horizontal run Be sure to check the drain trough for le...

Страница 11: ...they enter the duct panel conduit termination at the duct panel must be watertight Run the high voltage leads through the power entry knockout on the power entry side panel See Fig 2 and 3 for locatio...

Страница 12: ...0 8 1 7 3 5 5 0 8 1 14 4 20 6 15 15 25 8 14 20 36 42 47 030 400 3 50 360 440 5 2 35 0 0 8 1 7 3 5 6 9 10 4 5 0 10 0 15 0 9 0 15 3 21 5 21 5 15 20 25 30 9 15 20 9 39 45 50 40 036 400 3 50 360 440 6 5...

Страница 13: ...Fig 14 Wiring Schematics C02004 13...

Страница 14: ...tch or MODE control in OFF position Observe that blower motor starts when FAN mode is placed in FAN ON position and shuts down after proper fan off delay when FAN MODE switch is placed in AUTO positio...

Страница 15: ...ating mode reclaim all refrigerant and charge to nameplate amount This information may be obtained from the physical data table also IMPORTANT When evaluating the refrigerant charge an indi cated adju...

Страница 16: ...just charge by cooling methods while in Heating mode When charging is necessary in Heating mode recoever refridgerant and weigh in according to unit data plate refrigeration data TO USE COOLING CHARGI...

Страница 17: ...occur at airflows below this point 2 Dashes indicate portions of table that are beyond the blower motor capacity or are not recommended Table 6 Wet Coil Air Delivery SI Unit 50JZ 024 048 UNIT MOTOR SP...

Страница 18: ...1 Required Suction Line Temperature Metric SUPERHEAT TEMP C SUCTION PRESSURE AT SERVICE PORT KPA 424 443 463 483 503 524 546 568 591 0 1 7 2 8 3 9 5 0 6 1 7 2 8 3 9 4 10 6 1 2 8 3 9 5 0 6 1 7 2 8 3 9...

Страница 19: ...11 1 11 9 12 8 14 4 16 1 17 8 19 4 20 6 22 2 23 3 25 0 16 3 9 5 6 6 7 8 3 10 0 10 8 11 7 13 3 15 0 16 7 18 3 20 0 21 1 22 2 23 9 18 3 3 5 6 7 2 8 9 9 7 10 6 11 7 13 3 15 0 16 7 18 3 20 0 21 1 22 8 21...

Страница 20: ...35 85 8 11 15 19 22 26 30 33 90 5 9 13 16 20 24 27 31 95 6 10 14 18 22 25 29 100 8 12 15 20 23 27 105 5 9 13 17 22 26 110 6 11 15 20 25 115 8 14 18 23 Where a dash appears do not attempt to charge sys...

Страница 21: ...will be turned off for two 30 sec intervals during this complete defrost cycle as explained previously When Quiet Shift switch is in factory default OFF position a normal and complete defrost cycle w...

Страница 22: ...st and lint Step 2 Indoor Blower and Motor NOTE All motors are prelubricated Do not attempt to lubricate these motors For longer life operating economy and continuing efficiency clean accumulated dirt...

Страница 23: ...rcuit low voltage They shut off compressor if abnormally high or low pressures are present in the refrigeration circuit These pressure switches are specifically designed to operate with Puron R 410A s...

Страница 24: ...n the unit base 4 Perform required service 5 Remove and dispose of any oil contaminated material per local codes Liquid Line Filter Drier The biflow filter drier is specifically designed to operate wi...

Страница 25: ...and feeder tube going into outdoor coil At the end of 1 of the feeder tubes there is a 3 8 in 9 5 mm OD stub tube approximately 3 in 76 2 mm long The defrost thermostat should be located on stub tube...

Страница 26: ...and 200 psig 1379 kpa low side with 520 psig 3585 kpa low side retard Use hoses with 750 psig 5171 kpa service pressure rating Leak detectors should be designed to detect HFC refrigerant Puron as with...

Страница 27: ...tion Correct the direction of rotation by reversing the 3 phase power leads to the unit Compressor cycles other than normally satisfying thermostat Refrigerant overcharge or undercharge Recover refrig...

Страница 28: ...door Air Temperature __________ DB Return Air Temperature __________ DB __________ WB Heating Mode Heat Pump Supply Air __________ DB __________ WB Cooling Mode Supply Aire Temperature __________ DB _...

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