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548086-XIM-C-0814
Ground
Lug
Low
Voltage
Box
"Fingered"
Bushing
FIGURE 6: Outdoor Unit Control Box (Single Phase)
Ground
Lug
Low
Voltage
Box
"Fingered"
Bushing
FIGURE 7: Outdoor Unit Control Box (Three Phase - GCGA36-60)
8
Contactor
Dual
Run/Fan
Reversible High
Capacitor
Voltage Conduit Plate
Contactor
Fan
Capacitor
Reversible High
Voltage Conduit Plate
Low
Voltage
Box
"Fingered"
Bushing
A0155-001
FIGURE 8: Outdoor Unit Control Box (GCGA76 With Transformer)
FIELD CONNECTIONS CONTROL WIRING
1.
Route low voltage wiring into bottom of control box as shown in
Figure 6. Make low voltage wiring connections inside the low volt-
age box per Figures 7 - 11.
2.
The complete connection diagram and schematic wiring label is
located on the inside surface of the unit service access panel.
3.
Replace the corner cover removed in Step 2.
4.
All field wiring to be in accordance with national electrical codes
(NEC) and/or local-city codes.
NOTE: A Start Assist Kit is available and recommended for long line set
applications or in areas of known low voltage problems.
5.
Mount the thermostat about 5 ft. above the floor, where it will be
exposed to normal room air circulation. Do not place it on an out-
side wall or where it is exposed to the radiant effect from exposed
glass or appliances, drafts from outside doors or supply air grilles.
6.
Route the 24-volt control wiring (NEC Class 2) from the outdoor
unit to the indoor unit and thermostat.
A0156-001
To eliminate erratic operation, seal the hole in the wall at the ther-
mostat with permagum or equivalent to prevent air drafts affecting
the operation of in the thermostat.
Ground Lug
Reversible High
Voltage Conduit Plate
NOTICE
Johnson Controls Unitary Products
Contactor
Fan
Capacitor
A0157-001
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