Carrier 48AK, 48EW, 48EY024-068, 48AW, 48AY020-060, 48EK, 48AJ, 48EJ specifications START-UP Checklist

START-UP CHECKLIST

MODEL NO.: _________________________________	SERIAL NO.: ______________________________________
SOFTWARE VERSION (SEE FIG. 27): ____________	TECHNICIAN: ____________________________________
DATE: _______________________________________

PRE-START-UP:

…VERIFY THAT DIP SWITCH SETTINGS ARE CORRECT

…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

…VERIFY INSTALLATION OF ALL OPTIONS AND ACCESSORIES

…VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT

…CHECK GAS PIPING FOR LEAKS

…CHECK THAT RETURN-AIR FILTER AND OUTDOOR-AIR FILTERS ARE CLEAN AND IN PLACE

…VERIFY THAT UNIT IS LEVEL WITHIN TOLERANCES FOR PROPER CONDENSER 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	__________ L2-L3 __________ L3-L1 __________
COMPRESSOR AMPS — COMPRESSOR NO. 1			L1	__________	L2	__________	L2 _________
COMPRESSOR AMPS — COMPRESSOR NO. 2			L1	__________	L2	__________	L2 _________
SUPPLY FANS AMPS	(CV)	________		EXHAUST FAN AMPS		__________
	(VAV)	________ *
*VAV fan supply amps reading must be taken with a true RMS meter for accurate readings.
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		__________ F

PRESSURES
GAS INLET PRESSURE	__________ IN. WG
GAS MANIFOLD PRESSURE	STAGE NO. 1 __________ IN. WG
REFRIGERANT SUCTION	CIRCUIT NO. 1 __________ PSIG
REFRIGERANT DISCHARGE	CIRCUIT NO. 2 __________ PSIG

STAGE NO. 2 __________ IN. WG

CIRCUIT NO. 2__________ PSIG

CIRCUIT NO. 2__________ PSIG

…VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS ON PAGES 93 AND 94.

CL-1