Unit installation

DCN: 141-00885-16 1/26/06 TZ40 Thermostat Manual 28

TZ40 ZWave Adapter

The TZ40 comes with an external ZWave adapter (ZWB) that connects to the TZ40 RS485 port. The

RS485 port is dedicated to the ZWave adapter and cannot be used for other communications.

NOTE: DO NOT CHANGE THE DEFAULT RS485 ADDRESS OF THE THERMOSTAT (SET TO 1).

The TZ40 supports the standard ZWave protocol for thermostats.

Connect the adapter as shown and proceed with enrolling the device into your ZWave network.

ZWB ZWave Thermostat Adapter Wiring

1. Place the ZWB in a convenient location that gets good ZWave reception. You must have access

to the ZWB module to set the ZWave network address.

2. Connect the ZWB to the TZ40 HVAC control unit with 22-24Ga wiring. (Category 3-5 wiring

acceptable). Wiring can be up to 1000ft.

3. Connect the D+, D- and Gnd terminals on the ZWB module to the RS485 connection on the TZ40

control unit.

4. Connect the 12V terminal on the ZWB to the 12V terminal on the WDU terminal on the TZ40

control unit.

5. Power up TZ40 HVAC control unit and observe that the ZWB Power LED is on.

6. Enroll the ZWave adapter in to the ZWave network using a ZWave network remote or other

control system interface.

7. Confirm ZWave message traffic with the Network LED.

TZ40

Control Unit

ZWBT-485

ZWave Thermostat

Adapter

RX/D-

TX/D+

12V

Gnd

Program

button

Power LED

Network

Data LED

WDU

12V

GND

RS485

GND

D -

D +