Carrier 50HJ004 User Manual

START-UP 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 JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE

VERIFY THAT ALL PACKAGING 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 GAS PIPING FOR LEAKS

CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE

VERIFY THAT UNIT INSTALLATION IS LEVEL

CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW

TIGHTNESS

CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES

OR SHARP METAL EDGES

CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS

III. START-UP

ELECTRICAL

SUPPLY VOLTAGE

L1-L2

L2-L3

L3-L1

COMPRESSOR AMPS

INDOOR-FAN AMPS

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

RETURN-AIR TEMPERATURE

COOLING SUPPLY AIR

PRESSURES (Cooling Mode)

REFRIGERANT SUCTION

PSIG

REFRIGERANT DISCHARGE

PSIG

VERIFY THAT 3-PHASE FAN MOTOR AND BLOWER ARE ROTATING IN CORRECT DIRECTION. IF THEY

ARE NOT ROTATING IN CORRECT DIRECTION, LOCKING COLLAR MUST BE RE--TIGHTENED AFTER

CORRECTING DIRECTION OF ROTATION

VERIFY THAT 3-PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION

VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS

GENERAL

SET ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO MATCH JOB REQUIREMENTS

(IF EQUIPPED)

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

Catalog No:50H--1SI

Replaces:50HJ--31SI

Printed in U.S.A.

Edition Date:09/06

50H