HERZ laying system

With thermal reset
To keep the room temperature fluctuations
low, the membrane sensor is heated up in
combination with a thermal resistor. The
interacting maximum excess temperature
of 0.5 K is greater then the switching
difference. Therefore the thermostat
independently switches on and off even
if the room temperature is constant. If the
room temperature matches the preset value
the on and off impulses are equally long
(Switching on proportion = 0.5)
When the room temperature increases the
switching on impulse is shorter and the
switching off impulse longer. Consequently
a continuous P regulating is achieved with
a P-range of Xp = 3 K and a maximum and
constant control difference of Xp/2. With the
impulse modulation the room temperature
changes to the same value as it does
with a switching period (10 minutes On,
10 minutes Off). As a result the temperature
fluctuation is only 0.1…0.5 K depending on
the time constant.
Order no. 3 F791 00 230 V~, 50 Hz.
Order no. 3 F791 01 24 V
Order no. 3 F791 00 230 V~, 50 Hz.
With signal lamp
Order no. 3 F791 00 230 V~, 50 Hz.
With signal lamp and resistor for faster
response time,
Switching differential at 20 °C = 0.4 °K
Electronic room thermostat for floor
heating
For controlling the room temperature
via a switch for comfort. Night reduction
operation via an external time switch.
Temperature range 5 °C to 50 °C
Switching differential at 20 °C = 0.5 °K
Triac output maximum 15 W
Protection category IP30
Temperature sensor for floor heating
Can be used as a temperature limiter for the
control of floor heating.
Length 3 m
Order no. 3 F790 06
Set with electronic room thermostat
Order no. 3 F792 04 230 V
Order no. 3 F792 05 24 V
Electronic room thermostat
HERZ control
Displays the room temperature digitally
and the operation mode for controlling the
room temperature or the floor temperature in
conjunction with a temperature sensor.
With thermal night time temperature
decrease
The membrane is heated up in combination
with a heat resistor to decrease the room
temperature. Consequently the temperature
level in the housing is approximately 5 K
higher and the controller reacts with a
corresponding room temperature decrease.
The night time temperature decrease can
be activated with an external timer.
“BELUX” mechanical room thermostat
Room temperature – target value is
adjustable mechanically
Temperature range 5 °C to 50 °C
Switching differential at 20 °C = 0.6 °K
Protection category IP30
Output 2 or 3 contact ( alternator)
Order no. 3 F792 00 230 V~, 50 Hz.
Order no. 3 F792 01 24 V
Electronic room thermostat for
Underfloor heating
For controlling the room temperature or
floor temperature in conjunction with a
temperature sensor.
This temperature sensor must be designed
as a temperature limiter. There is the option
of connecting an external time switch for
night reduction.
Temperature range, 5 °C to 50 °C
Switching differential at 20 °C = 0.5 °K
Triac output maximum 15 W
Protection category IP30
This temperature sensor must be designed
as a temperature limiter.
There is the option of connecting an
external time switch for night reduction.
Temperature range, 5 °C to 50 °C
Switching differential at 20 °C = 0.5 °K
Triac output maximum 15 W
Protection category IP30
Order no. 3 F793 00 230 V~, 50 Hz.
Order no. 3 F793 01 24 230 V
Set with temperature sensor
Order no. 3 F793 00 230 V~, 50 Hz.
Order no. 3 F793 03 24 V
Order no. 3 F792 00 230 V~, 50 Hz.
Order no. 3 F792 03 24 V
32
Room heating and cooling for floors, walls and ceilings