START-UP CHECKLIST
MODEL NO.:
DATE:
SERIAL NO.:
TECHNICIAN:
I. PRE-START-UP:
Ⅺ VERIFY THAT UNIT IS LEVEL
Ⅺ VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT
Ⅺ LOOSEN ALL SHIPPING HOLDDOWN BOLTS AND REMOVE SHIPPING BRACKETS PER INSTRUCTIONS
Ⅺ VERIFY THAT COMPRESSOR SUSPENSION SPRINGS HAVE BEEN LOOSENED PER INSTRUCTIONS
Ⅺ VERIFY ASSEMBLY OF ECONOMIZER HOOD
Ⅺ VERIFY INSTALLATION OF EXHAUST HOOD
Ⅺ VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS
Ⅺ VERIFY THAT POWER SUPPLY MATCHES UNIT DATA PLATE
Ⅺ VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT
Ⅺ CHECK GAS PIPING FOR LEAKS (48MP ONLY)
Ⅺ CHECK THAT INDOOR-AIR FILTERS ARE CLEAN AND IN PLACE
Ⅺ CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE, AND VERIFY SET SCREW
IS TIGHT
Ⅺ VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED
Ⅺ OPEN SUCTION, DISCHARGE, AND LIQUID LINE SERVICE VALVES
Ⅺ CHECK COMPRESSOR OIL LEVEL SIGHT GLASS AND VERIFY PROPER LEVEL
Ⅺ VERIFY THAT CRANKCASE HEATERS HAVE BEEN ENERGIZED FOR 24 HOURS
Ⅺ 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 (DETERMINE BEFORE CONFIGURING CONTROLS):
CONTROL SETTINGS FOR NON-NETWORKED, FREESTANDING UNIT
Ⅺ UNIT TO BE OPERATED ON CONSTANT AIR VOLUME (CV) RATHER THAN VARIABLE-AIR VOLUME (VAV)
Ⅺ CONFIRM THAT SPACE TEMPERATURE SENSOR (T55) HAS BEEN WIRED CORRECTLY PER SPACE
TEMPERATURE SENSOR (T55) SECTION ON PAGE 17.
Ⅺ CONFIRM THAT TUBING FOR SPACE AND SUPPLY DUCT PRESSURES HAS BEEN INSTALLED
Ⅺ SET ENTHALPY CONTROL SET POINT ON ECONOMIZER
Ⅺ SET SUPPLY FAN AND ‘‘CHECK FILTER’’ STATUS SWITCHES FOR JOB REQUIREMENTS
UNIT OPTION CHECKLIST
ITEM PRESENT?
A Ⅺ CONSTANT VOLUME POWER EXHAUST
B Ⅺ VARIABLE VOLUME POWER EXHAUST
C Ⅺ VARIABLE FREQUENCY DRIVE ON SUPPLY FAN (VAV ONLY)
D Ⅺ HOT GAS BYPASS
E Ⅺ VAV WITH OCCUPIED HEAT
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1 1
Tab 1a 1b
PC 111 Catalog No. 534-893 Printed in U.S.A. Form 48/50MP-1SI CL-1 12-98 Replaces: 50MP-1SI
