Start-Up Checklist - Carrier 50HE003-006 Installation Instructions Manual

Single-package rooftop electric cooling units with optional electric heat

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Table of Contents

I. PRELIMINARY INFORMATION

MODEL NO.:

DATE:

II. PRE-START-UP (insert checkmark in box as each item is completed)

j VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE

j VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT

j REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS

j VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS

j CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

j CHECK GAS PIPING FOR LEAKS

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

j VERIFY THAT UNIT INSTALLATION IS LEVEL

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

TIGHTNESS

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

OR SHARP METAL EDGES

j CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS

III. START-UP

ELECTRICAL

SUPPLY VOLTAGE

COMPRESSOR AMPS

INDOOR-FAN AMPS

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

RETURN-AIR TEMPERATURE

COOLING SUPPLY AIR

PRESSURES (Cooling Mode)

REFRIGERANT SUCTION

REFRIGERANT DISCHARGE

j 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

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

j VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS

GENERAL

j 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.