Control Wire Sizes; Heat - York ZF Series Installation Manual

GROUND
LUG
Figure 14: Field Wiring Disconnect - Cooling Unit With/Without Electric Heat
Thermostat Wiring
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. Seven (7) 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.
Johnson Controls Unitary Products
TERMINAL BLOCK TB1
FACTORY OR FIELD
SUPPLIED DISCONNECT
Space Sensor
The space sensor, if used, should be located on an inside wall
approximately 56 inches above the floor where it will not be
subject to drafts, sun exposure or heat from electrical fixtures or
appliances. Follow manufacturer's instructions enclosed with
sensor for general installation procedure.
Table 8: Control Wire Sizes
Wire Size
18 AWG
1. From the unit to the thermostat and back to the unit.
5326601-XIM-A-0117
THREE
PHASE
POWER
SUPPLY
1
Maximum Length
150 Feet
15