Wireless Thermostat Installation Guide and the Control4

Wiring ConnectionsTo see which relays are triggered when certain modes of the Thermostat are calledfor, see “Additional Information” and “Thermostat Relays” described previously.TerminalRHRCBGY1Y2W1W2OTSTS/CDescription24VAC power for heating—connect to low voltage heating system transformer. (See Note 1 below.)24VAC power for cooling—connect to low voltage cooling system transformer. (See Note 1 below.)Heat Pump—heat changeover valveFan RelayConventional—air conditioner compressorHeat Pump—primary stage relayConventional—2nd stage compressorHeat Pump—2nd stage relayConventional—heat relayHeat Pump—auxiliary heat relayConventional—2nd stage heat relayHeat Pump—emergency heat lineHeat Pump—cool changeover valveRemote sensor (optional accessory)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 “InstallationInstructions,” Step 14.3. Refer to the table in Step 14 of “Installation Instructions” for information about switch settings.29