Carrier 48XL Start=U P Checklist, Remove and Store in Job File, I. Preliminary information

START=U P CHECKLIST

(Remove and Store in Job File)

I. Preliminary information

MODEL NO.:

SERIAL NO.:

DATE:

TECHNICIAN:

II.PRE-START-UP (insert checkmark 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 GAS PiPiNG FOR LEAKS (WHERE APPLICABLE)

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

ill. 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
GAS HEAT SUPPLY AiR
PRESSURES
GAS INLET PRESSURE			IN.WG
GAS MANIFOLD	PRESSURE		IN.WG
REFRIGERANT	SUCTION		PSIG SUCTION LINE TEMP*
REFRIGERANT	DISCHARGE		PSIG DISCHARGE		TEMPI,
( ) VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS
GAS HEAT TEMPERATURE			RISE
TEMPERATURE RISE (See Literature) RANGE
MEASURED TEMPERATURE			RISE
( ) VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PROPERLY

( ) VERIFY THAT OUTDOOR AIR THERMISTOR (OAT) iS PROPERLY INSTALLED & CONNECTED

*Measured at suction inlet to compressor

1-Measured at liquid line leaving condenser.

Copyright 2008 Carrier Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 08/08

Catalog No:48XL-O4Sl

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations, Replaces: 48XL-3SI

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