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HTR24(20) Wired electronic thermostat – non-programmable

The HTR24(20) is a room thermostat designed for surface heating/cooling control, suitable for surface mounting or flush-box installation, and known for its high thermal inertia.

Technical Specifications

Available in

France, Germany, Netherlands

Product type

Thermostat

Mounting type

Wall

Power supply type

24V

Suitable for underfloor heating

Yes

Output voltage

24V

Frost Protection

Yes

Manual override

Yes

Temperature control algorithm

PWM

Warranty

5 years

ErP (efficiency class)

I

Noise-free coupling (TRIAC)

Yes

Cooling mode function

Yes

Valve protection

Yes

Size (mm)

85x85x30

Temperature range

5°C-35°C

Silent operation

Yes

Voltage

24V

Maximum amperage

0.5A

Input voltage

24V

Quick installation / connection

L/N/NSB/-->/CO

Stand-alone functioning

Yes

Can be part of a system with multiple thermostats

Yes

Night mode

Yes

Change over contact

Yes

Terminals

L/N/NSB/-->/CO

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Available in
France, Germany, Netherlands
Available in
Germany
Product type
Thermostat
Product type
Thermostat
Mounting type
Wall
Mounting type
Wall
Power supply type
24V
Power supply type
24V
Suitable for underfloor heating
Yes
Suitable for underfloor heating
Yes
Output voltage
24V
Output voltage
24V
Frost Protection
Yes
Frost Protection
Yes
Manual override
Yes
Manual override
Yes
Temperature control algorithm
PWM
Temperature control algorithm
PWM
Warranty
5 years
Warranty
5 years
ErP (efficiency class)
I
ErP (efficiency class)
I
Noise-free coupling (TRIAC)
Yes
Noise-free coupling (TRIAC)
Yes
Cooling mode function
Yes
Cooling mode function
Yes
Valve protection
Yes
Valve protection
Yes
Size (mm)
85x85x30
Size (mm)
85x85x25
Temperature range
5°C-35°C
Temperature range
5°C-35°C
Silent operation
Yes
Silent operation
Yes
Voltage
24V
Voltage
24V
Maximum amperage
0.5A
Maximum amperage
0.5A
Input voltage
24V
Input voltage
24V
Quick installation / connection
L/N/NSB/-->/CO
Quick installation / connection
L/N/NSB/-->/CO
Stand-alone functioning
Yes
Stand-alone functioning
Yes
Can be part of a system with multiple thermostats
Yes
Can be part of a system with multiple thermostats
Yes
Night mode
Yes
Night mode
Yes
Change over contact
Yes
Change over contact
Yes
Terminals
L/N/NSB/-->/CO
Terminals
L/N/NSB/-->/CO
- Compatible with floor sensor
Yes
- Adjustable hysteresis
Yes
- LCD
Yes
- Temperature blocking option
Yes
- Display temperature resolution
0.5
- Predefined programs
Yes
- Customizable programs
Yes
- Daily / Monday - Sunday programming
Yes
- Temporary overwriting
Yes
- Holiday option
Yes
- Memory back-up
Yes
- Party mode
Yes
- Record consumption history
Yes