104
UNIT START-UP CHECKLIST
MODEL NO.:
DATE:
I. PRE-START-UP:
SERIAL NO:
TECHNICIAN:
j VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT
j VERIFY INSTALLATION OF OUTDOOR AIR HOOD
j VERIFY INSTALLATION OF FLUE EXHAUST AND INLET HOOD (48HC ONLY)
j VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS
j VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT
j VERIFY GAS PRESSURE TO UNIT GAS VALVE IS WITHIN SPECIFIED RANGE (48HC ONLY)
j CHECK GAS PIPING FOR LEAKS (48HC ONLY)
j CHECK THAT INDOOR--AIR FILTERS ARE CLEAN AND IN PLACE
j CHECK THAT OUTDOOR AIR INLET SCREENS ARE IN PLACE
j VERIFY THAT UNIT IS LEVEL
j CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND VERIFY SETSCREW IS TIGHT
j VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED
j VERIFY THAT SCROLL COMPRESSORS ARE ROTATING IN THE CORRECT DIRECTION
j VERIFY INSTALLATION OF THERMOSTAT/SPACE SENSOR
j VERIFY CONFIGURATION VALUES FOR ELECTRONIC CONTROLS (REFER TO CONTROL SET UP CHECKLIST)
j VERIFY THAT CRANKCASE HEATERS HAVE BEEN ENERGIZED FOR AT LEAST 24 HOURS
II. START-UP
ELECTRICAL
SUPPLY VOLTAGE L1-L2 L2-L3 L3-L1
COMPRESSOR AMPS — COMPRESSOR A1 L1 L2 L3
—COMPRESSOR B1 L1
L2 L3
ELECTRIC HEAT AMPS (IF EQUIPPED) L1 L2 L3
SUPPLY FAN AMPS L1 L2 L3
TEMPERATURES
OUTDOOR-AIR TEMPERATURE F DB (Dry Bulb) F WB (Wet Bulb)
RETURN-AIR TEMPERATURE
FDB FWB
COOLING SUPPLY AIR
FDB FWB
GAS HEAT SUPPLY AIR (48HC)
F F
ELECTRIC HEAT SUPPLY AIR (50HC)
F F
PRESSURES
GAS INLET PRESSURE IN. WG
GAS MANIFOLD PRESSURE STAGE NO. 1
IN.WG STAGENO.2 IN.WG
REFRIGERANT SUCTION CIRCUIT A
PSIG CIRCUIT A Superheat degF
CIRCUIT B
PSIG CIRCUIT B Superheat degF
REFRIGERANT DISCHARGE CIRCUIT A
PSIG CIRCUIT A Subcooling degF
CIRCUIT B
PSIG CIRCUIT B Subcooling degF
j VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS
GENERAL
j ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS
Copyright 2012 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed i n U.S.A. Edition Date: 05/12
Manufacturer reser ves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No: 48---50HC---C02T
R e p l a c e s : 4 8 --- 5 0 H C --- C 0 1 T
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