Temperature Control Replacement For Cabinets Larger Than 1/3 Hpcompressors - True GDM Series Technical & Service Manual

INSTALLATION INSTRUCTION
TEMPERATURE CONTROL REPLACEMENT
(For Cabinets With Larger Than 1/3 H.P. Compressors)
WARNING:
Failure to disconnect power to
the unit may result in
electrocution to field personnel.
Qualified Repair Personnel:
These repairs should be performed
by a qualified service technician.
Required Tools:
• Phillips-head Bit
• 1/4" Nut Driver Bit
• Wire Cutters
• Drill
• Needle-Nose Pliers
• Wire Strippers
• Crimping Tool
• Voltmeter
• Plastic Mallet or Hammer
• Slotted Screw Driver
Contents of Relay Kit:
• Relay (and mounting screws)
• Relay Shield (and mounting screws)
• (4) Relay wires: 2 blacks, 1 pink,
1 white with insulated female spade
connectors on one end.
• Grommet
• (4) Sta-con connectors
• New temperature control
• Instructions
___________ STEP 1 ___________
Removing Power:
A. Disconnect power to the unit.
(Slide Door)
Remove Louvered Grill:
A. To remove grill, loosen upper
screw on each end of grill and
remove lower screws. Gently swing
grill forward and up.
Figure 1. Removing louvered grill
(slide door model)
Accessing Wire Connections:
A. Remove ballast box cover by backing out two hex head screws.
(See Figure 2).
NOTE: Wiring diagram is positioned on inside cover.
Figure 2. Removing ballast box cover
43
STEP 2
(Swing Door)
Remove Louvered Grill:
A. Remove screws as indicated by
arrows.
Figure 1A. Removing louvered grill
(swing door model)
STEP 3