Unit start-up checklist, I. pre-start-up, Ii. start-up – Carrier 48/50PM C16-28 User Manual
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UNIT START-UP CHECKLIST
MODEL NO.:
DATE:
______________
SERIAL NO: _____________________________________
TECHNICIAN: ___________________________________
I. PRE-START-UP:
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 (48PG and PM 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 (48PG and PM ONLY)
j CHECK GAS PIPING FOR LEAKS (48PG AND 48PM)
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)
RETURN‐AIR TEMPERATURE
F DB
F WB (Wet Bulb)
COOLING SUPPLY AIR
F
GAS HEAT SUPPLY AIR (48PG AND PM )
F
ELECTRIC HEAT SUPPLY AIR (50PG AND PM)
F
PRESSURES
GAS INLET PRESSURE
IN. WG
GAS MANIFOLD PRESSURE
STAGE NO. 1
IN. WG
STAGE NO. 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 2011 Carrier Corp.
S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 1/11
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No:48-50PGPM-03T
Replaces: 48-50PGPM-02T
48/50PG and PM