The HTC-5 temperature controller is primarily designed for the control of 2 Stage Heat and 2 Stage Cool Air-conditioning units.

All output relays are voltage free, permitting use on either 240 V or 24 Volt circuitry. Stage switch on points are adjustable with their ON/OFF status displayed via LED indicators.

The HTC-5 also incorporates a random time delay on the fan relay output enabling multiple A/C Unit startups using only one Time Clock or System Start Switch.