HotWire TR8100 DUAL Control Instructions Download Page 3

Installation and Wiring

Carefully separate the front half of the thermostat from the back plate by placing a 
small flat head terminal driver into the slots on the bottom face of the thermostat.
Carefully unplug the ribbon connector which is plugged into the front half of 
the thermostat. Place the thermostat front half somewhere safe. Terminate the 
thermostat as shown in the diagrams below. 

Screw the thermostat back plate onto the flush box

Re-connect the thermostat ribbon cable and clip the two halves together.

Holiday Function

Temporary Temperature Override

With thermostat turned off, press and hold OFF for 5 seconds until you can 

see -- : -- on LCD.

Manual Mode

Press 

MODE

 to select Auto/Manual mode. In Manual mode(

 ), the

thermostat maintains a constant set temperature manually set by the user. 

Simply press the temperature and increase it to the required level.

In Auto mode, the thermostat executes the preprogrammed schedules.

The Holiday function reduces the temperature in your room to the frost 

protection temperature. The thermostat will maintain this temperature for the 

duration of the holiday and will then automatically return to the programme 

mode on your return.

Touch the temperature display, and it will start to flash. Use up or down buttons 

to adjust. Press 

DONE

 to accept, and you will see “Override” above the 

temperature display. Thermostat will maintain the new set temperature until the 

next programmed event (comfort level). To cancel the override setting, press

Run Schedule

Press 

HOLIDAY

 enter the duration of your holiday by or 

 or 

Press 

DONE

 To cancel a Holiday, reduce the holiday period to 00 days.

Lock the Keypad

To lock the keypad, press and hold the top left corner of display for 5 seconds,

you will see a lock symbol  . To unlock, repeat the steps above and the lock 

symbol will disappear.

Reset to Factory Setting

This   product   should   be   installed   by 

a   qualified   electrician. 

Connect green wires to house earth. 

Hotwire

Thermostat

Instructions

The following diagram shows how to connect your Hotwire Under Tile Heating 
to your thermostat. Simply replicate the following for a second zone or refer to 
the manufacturers instructions for subsequent devices.

LOAD (16A) 

FEED 

(230 VAC) 

 

Floor Sensor

Brown wire from Heated T

owel Rail

Brown wire from floor heating element

Blue wire from both floor heating and towel rail.

Power

L 2

L 1

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