Crestron HZA-CONV-THSTAT-2WIRE Common Wire Adapter for HZ-THSTAT

It is a common wire adapter for the Horizon HZ-THSTAT thermostat. It lets the thermostat power itself and make HVAC calls without taking power from the call relay connections, which removes the need to add a common wire to the HVAC system in retrofit applications.

It is made for the Crestron Horizon HZ-THSTAT Wireless Thermostat, which is sold separately. Crestron's details for the HZ-THSTAT name this adapter as the way to use the thermostat where there is no common wire.

On the thermostat side it has reference (R) and common (C) connections to the HZ-THSTAT. On the HVAC side it connects to common (C), reference (R) and the heat and compressor relay (W/Y). Crestron says it works with as few as two wires.

The adapter's relay is rated at 1 A at 24 VAC. Check the existing heat and compressor call circuit against this rating when planning a replacement or upgrade, as the adapter sits between the HVAC system and the thermostat.

It measures 51 mm high, 67 mm wide and 20 mm deep and weighs 28 g. The housing is Noryl plastic, and it surface mounts using the two screws supplied with it. Its relay is rated at 1 A at 24 VAC.

Crestron asks its dealers to give the price of the HZA-CONV-THSTAT-2WIRE directly rather than publish it online. Add it to your quote list and we will send you a written quote, with delivery, and installation and programming if you need them.

Yes. 1Install is an authorised Crestron Elite Partner with offices in Skerries, Co. Dublin and Cork. We can supply the HZA-CONV-THSTAT-2WIRE on its own, or install, set up and programme it as part of your system. Installation visits are €440 for 4 hours or €880 for a full day, plus VAT and travel.

Yes. Everything we supply is new, genuine Crestron with Crestron's standard warranty. If the HZA-CONV-THSTAT-2WIRE develops a fault, contact us and we will handle the claim with Crestron. If we installed it, our workmanship is guaranteed for the lifetime of the system.

We order Crestron for each quote, so availability depends on Crestron's stock at the time. We check it before we quote and put the expected delivery date on your quote, so you know where you stand before you pay.

Yes. We supply Crestron to end users, with or without installation. Like most Crestron devices of this type, it needs setting up or programming before it works in a system, and we can quote for that too.