5167515-YIM-H-0518
Johnson Controls Ducted Systems 19
Figure 23: Field Wiring Disconnect - Cooling Unit With Gas Heat Without VFD Option
Thermostat Wiring (Not applicable to units with VFD)
The thermostat should be located on an inside wall
approximately 56 inch above the floor where it will not be
subject to drafts, sun exposure or heat from electrical fixtures or
appliances. Follow the manufacturer's instructions enclosed
with thermostat for general installation procedure. Color-coded,
insulated wires should be used to connect the thermostat to the
unit. Refer to Table 8 for control wire sizing and maximum
length.
L1
T1
L2
T2
T3
L3
THREE
PHASE
POWER
SUPPLY
FACTORY OR FIELD
SUPPLIED DISCONNECT
GROUND
LUG
CONTACTOR 1M
Table 8: Control Wire Sizes
Wire Size Maximum Length
1
1.From the unit to the thermostat and back to the unit.
18 AWG 150 Feet
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