HotWire HWTH1 Instructions Download Page 3

HotwireThermostat

Instructions

Menu Settings

Press  Power buttton to turn off the thermostat. 

 

Press and hold button Prog for 3 seconds to bring up a configuration menu. Now press Prog button to select different menu number.

Set the temperature readout(AF model only). This gives option to choose to show air 

A= to show air temperature,  

  A - F = to show both in 5 second intervals 

temperature,floor temperature or to show both floor & air in interval.

01 = 5+2 day programmable

02 = 7 day programmable

LOAD (16A)

FEED

230 VAC

Floor Sensor

L

L

N

N

Power Supply:
10%, 50/60Hz

Load Capability: <16 A, 220VAC
Accuracy:   1deg C
Set-point range:  ambient 5~30 deg C
 

floor 5~40 deg C

Storage: -20~50 deg C

Sensor selection. This thermostat is a combination model allowing you to choose

between 3 different models. (A, AF,F,)

A model:      air only , with built in sensor

AF model:   air & floor , with both built in and remote sensor

F model:      floor onl y , with remote sensor

Menu #

 1

Switching differential.

Calibrate the room temperature. This feature is used to compensate for any difference

Calibrate the floor temperature. This feature is used to compensate for any  difference

Set the floor temperature limit(AF model only).

Select temperature format  

Select 12 / 24 hour clock

24  

12 / 24  

2

3

4

5

6

7

8

9

10

Feature Description

Factory Default

Feature Value

0°C

ON / OFF

 OFF

01

40 

A

°C

20°C ~ 40 °C

  °C / °F

  °C

A / AF / F 

Press up or down button to select

The numbers of degree difference before switching. The default is

between the displayed room temperature  and a thermometer.  

between the displayed floor temperature  and a thermometer.  

This feature is to protect the floor surface.

 °C or °F. 

Program type selection. This gives user 2 options of program type.(5+2 or 7 day programmable)  
5+2 day will give you 5 days(Monday to Fiday) with the same four events(Wakeup, out, 

7 day will give you individual settings for each day from Monday to Sunday.

home,sleep) and 2 days(Saturday and Sunday) with the same four events.

Frost protection.

This feature is to avoid room temperature goes below 5 °C 

 1°C which means the thermostat will switch the heating on 0.5°C below the set   

temperature and will turn it off 0.5°C above the set temperature. 

 

With a 2°C differential,  the heating will switch on 1°C below the set temperature 

and will switch off 1°C above the set temperature.  

1°C

1°C ~ 5°C

-5°C ~ +5°C

0°C

-5°C ~ +5°C

F=to show floor temperature,

HotwireThermostat

Instructions

Menu Settings

Press  Power buttton to turn off the thermostat. 

 

Press and hold button Prog for 3 seconds to bring up a configuration menu. Now press Prog button to select different menu number.

Set the temperature readout(AF model only). This gives option to choose to show air 

A= to show air temperature,  

  A - F = to show both in 5 second intervals 

temperature,floor temperature or to show both floor & air in interval.

01 = 5+2 day programmable

02 = 7 day programmable

LOAD (16A)

FEED

230 VAC

Floor Sensor

L

L

N

N

Power Supply:
10%, 50/60Hz

Load Capability: <16 A, 220VAC
Accuracy:   1deg C
Set-point range:  ambient 5~30 deg C
 

floor 5~40 deg C

Storage: -20~50 deg C

Sensor selection. This thermostat is a combination model allowing you to choose

between 3 different models. (A, AF,F,)

A model:      air only , with built in sensor

AF model:   air & floor , with both built in and remote sensor

F model:      floor onl y , with remote sensor

Menu #

 1

Switching differential.

Calibrate the room temperature. This feature is used to compensate for any difference

Calibrate the floor temperature. This feature is used to compensate for any  difference

Set the floor temperature limit(AF model only).

Select temperature format  

Select 12 / 24 hour clock

24  

12 / 24  

2

3

4

5

6

7

8

9

10

Feature Description

Factory Default

Feature Value

0°C

ON / OFF

 OFF

01

40 

A

°C

20°C ~ 40 °C

  °C / °F

  °C

A / AF / F 

Press up or down button to select

The numbers of degree difference before switching. The default is

between the displayed room temperature  and a thermometer.  

between the displayed floor temperature  and a thermometer.  

This feature is to protect the floor surface.

 °C or °F. 

Program type selection. This gives user 2 options of program type.(5+2 or 7 day programmable)  
5+2 day will give you 5 days(Monday to Fiday) with the same four events(Wakeup, out, 

7 day will give you individual settings for each day from Monday to Sunday.

home,sleep) and 2 days(Saturday and Sunday) with the same four events.

Frost protection.

This feature is to avoid room temperature goes below 5 °C 

 1°C which means the thermostat will switch the heating on 0.5°C below the set   

temperature and will turn it off 0.5°C above the set temperature. 

 

With a 2°C differential,  the heating will switch on 1°C below the set temperature 

and will switch off 1°C above the set temperature.  

1°C

1°C ~ 5°C

-5°C ~ +5°C

0°C

-5°C ~ +5°C

F=to show floor temperature,

In Auto mode, to temporarily override the current setpoint temperature,
1. Press up or down button once, the set temperature starts flashing.
2. Press up or down button again to adjust the set temperature.
3. Press OK button to confirm the setting with OVERRIDE shown.
Now your thermostat will maintain the new set temperature until the next setpoint.
To cancel the override setting, press Del button once.

Temporary temperature override

Press and hold up button to lock the thermostat. A lock    icon will display.

Key Lock & Unlock

Press and hold down button to unlock the thermostat. The unlock icon will dissapear.

Your thermostat has the ability to reset all settings to the factory defaults. In standby 
mode(when thermostat is turned off), press and hold Clock button and
Day button for 5 seconds until --:-- is shown(shown for 5 seconds only)

* Note no program changes are possible while the unit is locked.

Resetting factory defaults

Defaults are as follows:
Event 1 7:00 am 
Event 2 9:30 am
Event 3 4:30 pm
Event 4 10:30 pm

Installation Instructions

Using  a  screwdriver  unscrew  the  front  plate  from  the  back  plate.  Then  pull 
the  bottom  of  the  thermostat  towards  you  off  the  back  plate.  Wire  up  the  
thermostat as per the wiring diagram below, then place the back plate into the flush 
box and tighten it with the screws provided. To replace the thermostat put the top 
into the backing plate and then push the bottom of the thermostat in. Then replace 
screw holding both parts together. 

Blue wire from element

Brown wire from element

Line from switch box

230/240 VAC

Connect green wire from the

element to the house earth

(Cables can go either side)

House Neutral

Event 1 6:00 am
Event 2 8:30 am
Event 3 5:00 pm
Event 4 10:00 pm

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