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Electrical Circuit

HT4tz Information

The HT4tz is a vertical thermostat that is one of Heatwell's dual purpose thermostats.  The HT4tz is designed to operate underfloor heating and heated towel rails with the same thermostat. 

 

Underfloor heating and towel rails can be operated independently.

 

Zone 1 controls the underfloor heating.  Zone 2 controls the heated towel rails.

If you do not need independent programming for underfloor heating and heated towel rails, please have a look at the very easy to program HT4t.

All HT4tz's come preprogrammed, and are tested in New Zealand.

HT4tz Programming Videos

Introducing the HT4tz (1 of 4)

Operating the HT4tz (2 of 4)

Programming the HT4tz (3 of 4)

Operational setup of the HT4 and HT4tz (4 of 4)

HT4tz Product Specifications

Modes:
Manual
Program
Independent towel rail / floor heating

Settings:
(F) Floor probe
(A) Air Sensor

Possible schedules:
7 day

Programmable:
2 time periods per day

​Time:
12-hour clock

​Lockable
​Standby battery
Touch screen
Temperature differential  available

Dimensions:
12cm x 8cm x 1.8cm
​Weight:
0.3kg

​Volts - electrical block:
230-240 VAC
​Volts – thermostat:
5V
​Max Capacity:
16 Amps

Maximum temp:
40 degrees Celsius

Minimum temp:
5 degrees Celsius

Frost Protection:
3 degrees Celsius

​Floor probe options (kohms):
3 / 10 (default) / 15 / 25 / 50 / 100

Wiring Diagram

HT4t Wiring Diagram
Back to HT4 Range
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