Wiring Connections - Control 4 CCZ-T1-W Installation Manual

Wiring Connections

To see which relays are triggered when certain modes of the Thermostat are called
for, see "Additional Information" and "Thermostat Relays" described previously.
Terminal
RH 24VAC power for heating—connect to low voltage heating system transformer. (See Note 1 below.)
RC 24VAC power for cooling—connect to low voltage cooling system transformer. (See Note 1 below.)
B Heat Pump—heat changeover valve
G Fan Relay
Y1 Conventional—air conditioner compressor
Heat Pump—primary stage relay
Y2 Conventional—2nd stage compressor
Heat Pump—2nd stage relay
W1 Conventional—heat relay
Heat Pump—auxiliary heat relay
W2 Conventional—2nd stage heat relay
Heat Pump—emergency heat line
O Heat Pump—cool changeover valve
TS Remote sensor (optional accessory)
TS/C Remote sensor (optional accessory)
NOTES:
1. Install the U-shaped Terminal jumper wire provided between RC and RH for a single stage system.
2. When connecting the common wire, ensure that power stealing is disabled as described in "Installation
Instructions," Step 14.
3. Refer to the table in Step 14 of "Installation Instructions" for information about switch settings.
Description
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