Unit Start-Up Checklist - United Technologies Carrier Weathermaker 48A2 Controls, Start-Up, Operation, Service, And Troubleshooting

NOTE: To avoid injury to personnel and damage to equipment or
property when completing the procedures listed in this start-up
checklist, use good judgment, follow safe practices, and adhere to
the safety considerations/information as outlined in preceding sec-
tions of this Controls, Start-Up, Operation, Service and Trouble-
shooting document.
MODEL NO.: _________________________________
SOFTWARE VERSION _________________________
DATE: _______________________________________
PRE-START-UP:
 VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT
 REMOVE ALL COMPRESSOR SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTRUCTIONS
 VERIFY INSTALLATION OF ECONOMIZER HOOD PER INSTRUCTIONS
(including relocation of OAT sensor if necessary)
 VERIFY INSTALLATION OF ALL OPTIONS AND ACCESSORIES
 VERIFY PROPER INSTALLATION AND LOCATION OF STATIC PRESSURE TRANSDUCERS
(Supply Duct and Building Pressure when applicable)
 VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT
 VERIFY INSTALLATION AND LOCATION OF LAT SENSORS (multi-staged gas, SCR electric, hydronic heat only)
 CHECK GAS PIPING FOR LEAKS (48A ONLY)
 CHECK THAT RETURN-AIR FILTER AND OUTDOOR-AIR FILTERS ARE CLEAN AND IN PLACE
 VERIFY THAT UNIT IS LEVEL WITHIN TOLERANCES FOR PROPER CONDENSATE DRAINAGE
 CHECK FAN WHEELS AND PROPELLERS FOR LOCATION IN HOUSING/ORIFICE, AND SETSCREW IS TIGHT
 VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED
 VERIFY THAT SUCTION, DISCHARGE, AND LIQUID SERVICE VALVES ON EACH CIRCUIT ARE OPEN
 VERIFY THAT CRANKCASE HEATERS HAVE BEEN ON 24 HOURS BEFORE START-UP
START-UP:
ELECTRICAL
SUPPLY VOLTAGE L1-L2
COMPRESSOR AMPS — COMPRESSOR NO. 1 L1
COMPRESSOR AMPS — COMPRESSOR NO. 2 L1
SUPPLY FANS AMPS (CV/SAV)
(VAV)
*VAV fan supply amps reading must be taken with a true RMS meter for accurate readings.
TEMPERATURES
OUTDOOR-AIR TEMPERATURE
RETURN-AIR TEMPERATURE
COOLING SUPPLY AIR
GAS HEAT SUPPLY AIR
ELECTRIC HEAT SUPPLY AIR

UNIT START-UP CHECKLIST

SERIAL NO.: ______________________________________
TECHNICIAN: ____________________________________
__________ L2-L3 __________
__________
__________
_________ EXHAUST FAN AMPS __________
_________ *
__________ F DB (Dry Bulb)
__________ F DB __________ F WB (Wet Bulb)
__________ F
__________ F (48A ONLY)
__________ F (50A ONLY, IF EQUIPPED)
CL-6
L3-L1 __________
L2 __________ L3 _________
L2 __________ L3 _________