HZA-CONV-THSTAT-2WIRE - Thermostat Crestron - Free user manual and instructions

Product Type	Thermostat
Brand	Crestron
Model	HZA-CONV-THSTAT-2WIRE
Dimensions (approx.)	4.5 x 4.5 x 1.2 inches (114 x 114 x 30 mm)
Weight (approx.)	0.5 lb (227 g)
Power Supply	24 VAC, 2-wire system
Compatibility	Most 24V HVAC systems (gas, electric, heat pump)
Temperature Range	50°F to 90°F (10°C to 32°C)
Programmable Schedules	7-day, 4 periods per day
Display Type	Backlit LCD
Control Interface	Touch screen or push buttons
System Modes	Heat, Cool, Auto, Off
Fan Modes	On, Auto
Maintenance	Clean with a soft, dry cloth. Avoid liquids.
Safety	Low voltage (24V) for safe operation
Spare Parts & Repairability	Contact Crestron customer service for replacement parts or service
Warranty	Limited, refer to Crestron policy

Frequently Asked Questions - HZA-CONV-THSTAT-2WIRE Crestron

How do I install the Crestron HZA-CONV-THSTAT-2WIRE thermostat?

Installation involves connecting the two wires from your HVAC system to the thermostat terminals. Typically, one wire is for power (24V AC) and the other for control. Always turn off power at the breaker before installation. Refer to the manual for detailed wiring diagrams.

Is this thermostat compatible with my heat pump system?

Yes, the HZA-CONV-THSTAT-2WIRE is compatible with most 24V heat pump systems, but it requires a dedicated heat pump configuration. Check the manual for specific wiring and setup instructions for heat pumps.

What should I do if the display is blank?

First, ensure the circuit breaker is on and the thermostat is receiving power. Check the wiring connections. If the display remains blank, the unit may need replacement. Contact Crestron support.

Can I program a weekly schedule?

Yes, the thermostat supports 7-day programmable scheduling with 4 periods per day (Morning, Day, Evening, Night). You can set different temperatures for each period via the menu.

How do I reset the thermostat to factory settings?

To perform a factory reset, navigate to the settings menu and select 'Reset'. Confirm the action. The thermostat will revert to default settings. Note that all programmed schedules will be erased.

What does the 'Hold' feature do?

The 'Hold' feature temporarily overrides the programmed schedule and keeps the temperature at a fixed setting until cancelled. It is useful for when you want a constant temperature for a period of time.

How can I save energy with this thermostat?

Use the programmable schedule to lower the temperature when you are away or asleep. The thermostat also has an energy-saving mode that optimizes temperature setbacks. Set the fan to 'Auto' to reduce electricity consumption.

Why does my thermostat show an error code?

Error codes indicate a problem with the system. Common codes include 'E1' (sensor failure) or 'E2' (communication error). Refer to the manual to interpret the code. Try resetting the thermostat; if the error persists, contact a technician.

How do I clean the thermostat?

Clean the exterior with a soft, dry cloth. Do not use any liquids, sprays, or abrasive cleaners, as they may damage the electronics. Avoid cleaning the internal components.

Where can I find replacement parts or service?

For replacement parts or authorized service, contact Crestron customer support directly. Have your model number and proof of purchase ready. Do not attempt to open the thermostat yourself.

USER MANUAL HZA-CONV-THSTAT-2WIRE Crestron

HZA-CONV-THSTAT-2WIRE

Common WireAdapter forHZ-THSTAT

Quick Start

The Crestron® HZA-CONV-THSTAT-2WIRE is an adapter for the Horizon® HZ-THSTAT Wireless Thermostat (sold separately) that eliminates the need to add a common wire in retrofit applications. The adapter allows the HZ-THSTAT to power itself and perform an HVAC call, with as few as two wires, without stealing power from the HVAC call relay connections. The adapter can also be used to add an additional wire for a system upgrade if a common wire is already present. The HZA-CONV-THSTAT-2WIRE is installed near the HVAC equipment and can be mounted with either mounting screws (included) or double-sided tape (included).

HZA-CONV-THSTAT-2WIRE

In the Box

1 HZA-CONV-THSTAT-2WIRE, Common Wire Adapter for HZ-THSTAT

Additional Items

2 Screw, 6-20 BSD, #2 PT, Self Drill, 1/2 in. Hex, Steel (2056229)

2 Tape, 1.5 in. x 0.75 in., Double Sided (2048130)

HZA-CONV-THSTAT-2WIRE

Common WireAdapter forHZ-THSTAT

Quick Start

Install the Device

Install the HZA-CONV-THSTAT-2WIRE near the HVAC equipment. It can be mounted to most flat surfaces with self-drill mounting screws (included) or double-sided tape (included).

Mounting with Double-Sided Tape

Two pieces of double-sided tape are provided. The illustration below, depicts the recommended placement for the double-sided tape on the HZA-CONV-THSTAT-2WIRE. Make sure the HZA-CONV-THSTAT-2WIRE and the mounting surface are both clean before attaching the tape.

Mounting with Included Screws

Before mounting the HZA-CONV-THSTAT-2WIRE, prepare the mounting surface. A power drill is required for the installation.

1. Place the HZA-CONV-THSTAT-2WIRE on the mounting surface.
2. Make a center mark through both of the HZA-CONV-THSTAT-2WIRE mounting holes.
3. Partially screw one of the included screws to the mounting surface.
4. Align the HZA-CONV-THSTAT-2WIRE with the screw, and continue tightening the screw.

HZA-CONV-THSTAT-2WIRE

Common WireAdapter forHZ-THSTAT

1. With one side fastened, use the second included screw to secure the other side of the HZA-CONV-THSTAT-2WIRE to the mounting surface.

Isometric line drawing of a mechanical component with no visible text or symbols

Wire the Device

Turn the HVAC system power off, and make the necessary connections as called out in the illustrations that follow. Apply power after all connections have been made.

NOTES:

• Always wire the HZA-CONV-THSTAT-2WIRE to the R/RC and C connections on the HZ-THSTAT.
Keep the R CONNECTIONS switch set to R/RC ONLY.
- The W/Y connection on the HZA-CONV-THSTAT-2WIRE, always replaces the Y connection when there is a Y connection for the system type selected.
For Heat only systems, the W/Y connection will replace the W connection.
For Radiant.Floor only systems, the W/Y connection will replace the W2 connection.

HZA-CONV-THSTAT-2WIRE

Quick Start

Common WireAdapter forHZ-THSTAT

Single Stage Heat-Only System without Common Wire Single Stage Heat/Cool System without Common Wire

HZA-CONV-THSTAT-2WIRE

Common WireAdapter forHZ-THSTAT

For detailed setup information, refer to the HZ-THSTAT Product Manual (Doc. 8622).

Visit the Product Page

Scan the QR code to visit the product page.

HZA-CONV-THSTAT-2WIRE

www.crestron.com/model/6511526

Quick Start

Additional Information

Original Instructions

The U.S. English version of this document is the original instructions. All other languages are a translation of the original instructions.

Regulatory Model: M202016001

Crestron product development software is licensed to Crestron dealers and Crestron Service Providers (CSPS) under a limited nonexclusive, nontransferable Software Development Tools License Agreement. Crestron product operating system software is licensed to Crestron dealers, CSPs, and end-users under a separate End-User License Agreement. Both of these Agreements can be found on the Crestron website at www.crestron.com/legal/software_license_agreement.

The product warranty can be found at www.crestron.com/warranty.

The specific patents that cover Crestron products are listed at www.crestron.com/legal/patents.

Certain Crestron products contain open source software. For specific information, visit www.crestron.com/opensource.

Crestron, the Crestron logo and Horizon are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and names of others. Crestron is not responsible for errors in typography or photography.

©2021 Crestron Electronics, Inc.

Doc ID 8958A

05/26/21