Carrier 50PG20-28 Controls, Start-Up, Operation, Service And Troubleshooting Instructions page 112

UNIT START-UP CHECKLIST
MODEL NO.: SERIAL NO.:
DATE: TECHNICIAN:
I. PRE-START-U P:
[] VERIFY THAT ALL PACKING MATERIALS HAVE BEEN" REMOVED FROM UNIT
[] VERIFY INSTALLATION OF OUTDOOR AIR HOOD
[] VERIFY INSTALLATION OF FLUE EXHAUST AND INLET HOOD (48PG ONLY)
[] VERIFY THAT CONDENSATE CON_TCTION IS INSTALLED PER INSTRUCTIONS
[] VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT
[] VERIFY GAS PRESSURE TO UNIT GAS VALVE IS WITHIN" SPECIFIED RANGE (48PG ONLY)
[] CHECK GAS PIPING FOR LEAKS (48PG ONLY)
[] CHECK THAT INDOOR-AIR FILTERS ARE CLEAN" AND IN PLACE
[] CHECK THAT OUTDOOR AIR INLET SCREENS ARE IN PLACE
[] VERIFY THAT UNIT IS LEVEL
[] CHECK FAN"WHEEL AND PROPELLER FOR LOCATION" 1N HOUSING/ORIFICE, AND VERIFY SETSCREW
IS TIGHT
[] VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED
[] VERIFY THAT SCROLL COMPRESSORS ARE ROTATING IN THE CORRECT DIRECTION
[] VERIFY INSTALLATION OF THERMOSTAT/SPACE SENSOR
[] VERIFY INSTALLATION OF tR?MIDITY SWITCH/SENSOR (tRJMIDI-MIZER
TM
I_TTS ONLY)
[] VERIFY CONFIGURATION VALUES FOR ELECTRONIC CONTROLS (REFER TO CONTROL SET UP CHECKLIST)
[] VERIFY THAT CRANKCASE HEATERS HAVE BEEN" ENERGIZED FOR AT LEAST 24 HOURS
I1. START-UP
ELECTRICAL
SUPPLY VOLTAGE LI-L2 L2-L3 L._-L1
COMPRESSOR AMPS COMPRESSOR A1
COMPRESSOR B1
ELECTRIC HEAT AMPS (IF EQUIPPED)
SUPPLY FAN AMPS
L1 L2 L3
L1 L2 L3
L1 L2 L3
L1 L2 L3
TEMPERATU RES
OUTDOOR-AIR TEMPERATURE
RETURN-AIR TEMPERATURE
COOLING SUPPLY AIR
GAS HEAT SUPPLY AIR (48PG)
ELECTRIC HEAT SUPPLY AIR (50PG)
F DB (Dry Bulb)
F DB
F
F
F
F WB (Wet Bulb)
PRESSURES
GAS INLET PRESSURE
GAS MANIFOLD PRESSURE STAGE NO. 1
REFRIGERANT SUCTION CIRCUIT A
CIRCUIT B
REFRIGERANT DISCHARGE CIRCUIT A
CIRCUIT B
IN. WG
IN. WG
PSIG
PSIG
PSIG
PSIG
STAGE NO. 2
[] VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS ON PAGES 89 AND 90
GENERAL
[] ECONOMIZER MINIMUMVENT AND CHANGEOVERSETTINGSTO JOB REQUIREMENTS
IN. WG
Copyright 2006 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No 04-53480028-01 Printed in U.SA Form 48/50PG-5T Pg CL-6 6-06 Replaces: 48/50PG-2T
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