Lux Products Corporation

Wiring Information and Trouble Shooting

This page provides general guidance for wiring your Lux 24VAC digital thermostat. For more detailed information please refer to the instructions that came with your thermostat. Those instructions can be viewed in PDF format here.

Please make specific note regarding LOW VOLTAGE and LINE VOLTAGE directions. Do not install LINE VOLTAGE wires to a LOW VOLTAGE control. Do no install a wire labeled "C" or "TC" from the previous thermostat to any of our controls. Installation of a "C" wire may cause damage to your system.

Do NOT wire by color of the wire, wire by the LETTER designation to which the wire was attached on the previous control.

If there were no letter designations on your old thermostat, contact our Technical Assistance Department for assistance.

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	WIRING INFORMATION
Model	DHP2110
Description
ALL	Never connect a low voltage thermostat to line voltage.

Five wires control a Heat Pump with an auxiliary heat stage. They were labeled: G, Y, R or RH or RC, and W or W2. Either B or O was used.	Do not connect wires to both B and O. Connect the reversing valve wire to B or O, just as the previous thermostat. Connect 24 VAC wire to R. Connect compressor wire to Y, fan wire to G, and auxiliary wire to W2. Add jumper from W2 to E. It is not necessary to wire the X terminal.

Six wires control a Heat Pump with an auxiliary heat stage. They were labeled: G, Y, R or RH or RC, and W or W2. Either B or O was used. And Emergency wire E is present.	Do not connect wires to both B and O. Connect the reversing valve wire to B or O, just as the previous thermostat. Connect 24 VAC wire to R. Connect compressor wire to Y, fan wire to G, and auxiliary wire to AUX. Connect Emergency Heat wire E. It is not necessary to wire the X terminal.

For further assistance	Contact your HVAC service company or our Technical Assistance Line if not resolved.