Carrier 48FK, JK034-074, 50FK specifications Pre-Start-Up, II. Preliminary Checklist Items

	START-UP CHECKLIST
MODEL NO.:		SERIAL NO.:
DATE:		TECHNICIAN:
I. PRE-START-UP:
VERIFY THAT UNIT IS LEVEL

VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT

LOOSEN ALL SHIPPING HOLDDOWN BOLTS AND REMOVE SHIPPING BRACKETS PER INSTRUCTIONS

VERIFY THAT COMPRESSOR SUSPENSION SPRINGS HAVE BEEN LOOSENED PER INSTRUCTIONS

VERIFY OPENING OF ECONOMIZER HOODS

VERIFY INSTALLATION OF EXHAUST HOODS

CONFIRM THAT TUBING FOR SPACE AND SUPPLY DUCT PRESSURES HAS BEEN INSTALLED

VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS

VERIFY THAT POWER SUPPLY MATCHES UNIT DATA PLATE

VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT

CHECK GAS PIPING FOR LEAKS (48FK,JK ONLY)

CHECK THAT INDOOR-AIR FILTERS ARE CLEAN AND IN PLACE

CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE, AND VERIFY SET SCREWS ARE TIGHT

VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED

OPEN SUCTION, DISCHARGE, AND LIQUID LINE SERVICE VALVES

CHECK COMPRESSOR OIL LEVEL SIGHT GLASS AND VERIFY PROPER LEVEL

VERIFY THAT CRANKCASE HEATERS HAVE BEEN ENERGIZED FOR 24 HOURS

CHECK VOLTAGE IMBALANCE

LINE-TO-LINE VOLTS:	AB	V	AC		V	BC	V
(AB + AC + BC)/3 = AVERAGE VOLTAGE =				V
MAXIMUM DEVIATION FROM AVERAGE VOLTAGE =						V
VOLTAGE IMBALANCE = 100 X (MAX DEVIATION)/(AVERAGE VOLTAGE) =								%

IF OVER 2% VOLTAGE IMBALANCE, DO NOT ATTEMPT TO START SYSTEM!

CALL LOCAL POWER COMPANY FOR ASSISTANCE.

II. PRELIMINARY CHECKLIST ITEMS:

CONTROL SETTINGS

DIP SWITCHES SET TO MATCH INSTALLED ACCESSORIES:

SUPPLY AIR SET POINT RESET (DIP SWITCH NO. 4 ON)

MORNING WARM-UP (DIP SWITCH NO. 4 ON)

DEMAND LIMIT (DIP SWITCH NO. 5 ON)

SUPPLY AIR SET POINT (P1) SET BETWEEN 45 AND 70 F

ECONOMIZER MINIMUM POSITION (P5) SET PER PLANS

SUPPLY AIR SET POINT RESET SETTINGS:

RESET INITIATION TEMPERATURE (P7) (TYPICALLY 68 TO 72 F)

RESET LIMIT TEMPERATURE (P3) (TYPICALLY 60 TO 70 F)

MORNING WARM-UP TEMPERATURE (TYPICALLY 50 TO 65 F)

IGV/VFD DUCT PRESSURE SET POINT PER PLANS

BUILDING PRESSURE (MODULATING POWER EXHAUST) SET PER PLANS

DEMAND LIMIT SETTINGS PER PLAN:

SINGLE STEP DEMAND LIMIT (P4) SET (TYPICALLY 25 TO 50%)

TWO-STEP DEMAND LIMIT

DLCM-P1 SET (TYPICALLY 50 TO 75%)

DLCM-P2 SET (TYPICALLY 0 TO 25%)

OCCUPIED/UNOCCUPIED SWITCH INSTALLED PER FIG. 21 (CLOSE TO START UNIT)

CL-1