TemperZone UC8 User Manual

Temperzone UC8 Operation, OSA models with inverter, issue 1
Page 8 of 27
3. Digitally communicating thermostats: SAT-3 and TZT-100
The unit can connect to one SAT-3 or to one TZT-100 room thermostat.
It is strongly recommended to use a shielded cable with twisted pair wires. Signals from UC8 terminals
A2 and B2 must form one twisted wire pair. The cable shield should connect to terminal “0V” at the
UC8.
12V DC power is available on terminals “0V” (-) and “12” (+) and can be used to power the
thermostat. If the cable length between the UC8 and thermostat is greater than about 20m and
communications do not work or are intermittent then place UC8 jumper “J2” on the centre and left
pins, otherwise place jumper “J2” on the centre and right pins.
It is recommended to keep the thermostat cable separate from other cables as much as is practical.
When the UC8 and room thermostat are communicating a small
“satellite dish antenna” symbol is visible on the thermostat display:
3.1. Temperzone SAT-3 room thermostat
A typical connection to a SAT-3 room thermostat:
3.2. Temperzone TZT-100 room thermostat
A typical connection to a TZT-100 room thermostat:

TemperZone UC8 Specifications

General

Brand	TemperZone
Model	UC8
Category	Controller
Language	English