Crestron HZA-CONV-THSTAT-2WIRE – Common Wire Adapter for HZ-THSTAT
Crestron HZA-CONV-THSTAT-2WIRE – Common Wire Adapter for HZ-THSTAT is backordered and will ship as soon as it is back in stock.
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Crestron HZA-CONV-THSTAT-2WIRE – Common Wire Adapter for HZ-THSTAT
Product Overview
The Crestron HZA-CONV-THSTAT-2WIRE is a common wire (C-wire) adapter for the Crestron HZ-THSTAT thermostat. It enables installation of the HZ-THSTAT in HVAC systems that do not have a common wire available, converting a 2-wire HVAC circuit to provide the constant 24 VAC power required by the thermostat.
Product Description
Many older residential and light commercial HVAC systems were wired with only 2 conductors — typically R (power) and W (heat) or R and Y (cool) — without a dedicated common (C) wire. Modern smart thermostats, including the Crestron HZ-THSTAT, require a C-wire for continuous 24 VAC power to operate reliably. The HZA-CONV-THSTAT-2WIRE solves this problem without requiring new thermostat wire to be run.
This adapter is specifically designed for the HZ-THSTAT and should not be used as a generic C-wire adapter for other thermostat brands or models. It is a necessary accessory for any HZ-THSTAT installation in a 2-wire system.
Key Features
- Enables HZ-THSTAT installation in 2-wire HVAC systems lacking a common wire
- Eliminates the need to run new thermostat wiring to add a C-wire
- Specifically designed and certified for use with Crestron HZ-THSTAT
- Simplifies retrofit thermostat installations in older buildings
- Compact adapter for discrete installation at the HVAC equipment or thermostat location
Typical Applications
- Retrofit thermostat installations in older buildings with 2-wire HVAC wiring
- Commercial or light commercial spaces upgrading to Crestron thermostat control
- Residential integration projects where thermostat wiring predates C-wire inclusion
Technical Specifications
| Specification | Value |
|---|---|
| SKU | HZA-CONV-THSTAT-2WIRE |
| Compatible Device | Crestron HZ-THSTAT thermostat |
| Function | Common wire (C-wire) adapter for 2-wire HVAC systems |
| HVAC Voltage | 24 VAC (standard low-voltage HVAC) |
FAQs
Q: Is the HZA-CONV-THSTAT-2WIRE compatible with thermostats other than the Crestron HZ-THSTAT?
A: No. This adapter is designed specifically for the Crestron HZ-THSTAT thermostat and is not a universal C-wire adapter.
Q: Where is the adapter installed — at the thermostat or at the HVAC equipment?
A: Installation location depends on the HVAC system configuration. Refer to Crestron's installation documentation for the HZA-CONV-THSTAT-2WIRE for specific wiring instructions.
Q: Does my system need a C-wire?
A: If your existing thermostat wiring has only 2 conductors and does not include a C wire, this adapter is required when installing the HZ-THSTAT.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
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