Start-Up Checklist; Electrical Start-Up Checklist; Refrigeration System Start-Up Checklist - Greenheck DGX Installation, Operation And Maintenance Manual

Start-Up Checklist

(continued)
All motor(s) / compressor(s) have been checked for
rotation. If blower rotation is incorrect, wiring must
be changed at the disconnect to ensure all motor(s) /
compressor(s) are corrected.
CAUTION
Operation of scroll compressor(s) in this unit is
directional and the compressors will be damaged if
run in the wrong direction.

Electrical Start-Up Checklist

Crankcase Heaters Working
Check line voltage at unit disconnect
_______ L1-L2 volts
_______ L2-L3 volts
_______ L1-L3 volts
Correct fan rotation direction
Condenser Fans
Refrigeration Start-Up Checklist
NOTE
Refrigeration System Start-Up Checklist must be
performed by a Qualified Refrigeration Technician.
Apply power to terminal Y1 on the terminal strip. If
necessary, adjust thermostat TS5 to call for maximum
cooling.
Outdoor Air Temperature
Wet Bulb Reading or Dew Point or Outdoor Air
Relative Humidity
(indicate which)
 Condensing Fan 1:
_______ L1 amps
_______ L2 amps
_______ L3 amps
 C ondensing Fan 2:
_______ L1 amps
_______ L2 amps
_______ L3 amps
 C ondensing Fan 3:
(if present)
_______ L1 amps
_______ L2 amps
_______ L3 amps
12
Packaged DX Module for Make-Up Air Unit
Compressors
Each DX unit is equipped with either one or two
compressors. Each compressor is part of a separate
refrigeration circuit.
CIRCUIT A
 Compressor:
Superheat
Subcooling
Yes / No
Discharge Pressure
Discharge Line Temperature
Suction Line Pressure
Suction Line Temperature
Moisture Indicating Sight Glass located on copper
Yes / No
tube liquid line
Color of Center Dot
CIRCUIT B - if present
 Compressor:
__________ Deg. F.
___________ % RH
Superheat
Subcooling
Discharge Pressure
Discharge Line Temperature
Suction Line Pressure
Suction Line Temperature
Moisture Indicating Sight Glass located on copper
tube liquid line
Color of Center Dot
_______ L1 amps
_______ L2 amps
_______ L3 amps
_______ Crankcase Heater
Should be between 8º and 12ºF.
Should be between 12º and 18ºF.
Bubbles Visible
If bubbles are visible in sight glass, stop the start-up
process. Refrigerant charge may not be adequare.
.
Consult factory
_______ L1 amps
_______ L2 amps
_______ L3 amps
_______ Crankcase Heater
Should be between 8º and 12ºF.
Should be between 12º and 18ºF.
Bubbles Visible
If bubbles are visible in sight glass, stop the start-up
process. Refrigerant charge may not be adequare.
.
Consult factory
_______Deg. F.
_______Deg. F.
________ PSIG
_______Deg. F.
________ PSIG
_______Deg. F.
Yes / No
Green / Yellow
_______Deg. F.
_______Deg. F.
________ PSIG
_______Deg. F.
________ PSIG
_______Deg. F.
Yes / No
Green / Yellow
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