55
UNIT START-UP CHECKLIST
(Remove and Store in Job File)
NOTE: To avoid injury to personnel and damage to equipment or property when
completing the procedures listed in this start---up checklist, use good judgement,
follow safe practices, and adhere to the safety considerations/information as
outlined in the preceding sections of this Installation Instructions document.
MODEL NO.:
SERIAL NO.:
I. PRE-START-UP
j
VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT
j
VERIFY INSTALLATION OF OUTDOOR AIR HOOD
j
VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS
j
VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT
j
CHECK THAT INDOOR--AIR FILTERS ARE CLEAN AND IN PLACE
j
CHECK THAT OUTDOOR AIR INLET SCREENS ARE IN PLACE
j
VERIFY THAT UNIT IS LEVEL
j
CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND VERIFY
SETSCREW IS TIGHT
j
VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED
j
VERIFY THAT SCROLL COMPRESSORS ARE ROTATING IN THE CORRECT DIRECTION
j
VERIFY INSTALLATION OF THERMOSTAT
II. START-UP
COOLING CYCLE --
ELECTRICAL
SUPPLY VOLTAGE
L1--L2
L2--L3
L3--L1
COMPRESSOR AMPS 1
L1
L2
L3
COMPRESSOR AMPS 2
L1
L2
L3
SUPPLY FAN AMPS
L1
L2
L3
TEMPERATURES
OUTDOOR--AIR TEMPERATURE
_
F DB (DRY BULB)
RETURN--AIR TEMPERATURE
_
F DB
_
F WB (WET BULB)
COOLING SUPPLY AIR TEMPERATURE
_
F
PRESSURES
REFRIGERANT SUCTION
CIRCUIT A
PSIG
CIRCUIT B
PSIG
REFRIGERANT DISCHARGE CIRCUIT A
PSIG
CIRCUIT B
PSIG
j
VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS
HEATING CYCLE --
ELECTRICAL
SUPPLY VOLTAGE
L1--L2
L2--L3
L3--L1
COMPRESSOR AMPS 1
L1
L2
L3
COMPRESSOR AMPS 2
L1
L2
L3
SUPPLY FAN AMPS
L1
L2
L3
Summary of Contents for 548J*14D Series
Page 5: ...5 a548J 011 Fig 2 Unit Dimensional Drawing Size 14 Unit...
Page 6: ...6 a548J 012 Fig 2 Unit Dimensional Drawing Size 14 Unit cont...
Page 10: ...10 a548J 013 Fig 6 Roof Curb Details...
Page 17: ...17 a50 9707 Fig 26 Typical 548J Size 14 Control Wiring Diagram...
Page 43: ...43 a50 9711 Fig 49 RTU Open Controller System Wiring Diagram...