6
4
Technical data
4.1
Performance data
Temperature setting range:
5 to 35°C
Switching temperature
difference:
about ±1K
Operating voltage:
230 V AC, 50/60Hz
Power:
< 2 W
Fuse:
3 A (ohmic)
1 A (capacitive)
Protection:
IP 30
4.2
Dimensions / Connection dimensions
Illustr. 4.1 Dimensions
5
Construction and function
5.1
Summary / Functional description
The digital room thermostat is used for fan drive in fan
coil units. The temperature of the fan convectors is
steadily controlled by a valve which is activated by an
actuator. When the room temperature has reached the
set nominal value, the valve will be closed and the fan
will keep running.
Setting of the nominal value via touch screen,
visualisation on a large LCD display with blue
backlighting which is active when pressing the keys.
Operating functions: Heating, cooling, ventilation. Fan
speed: slow, medium, fast or automatic. The settings
can be stored. The valve and fan coil are relay-
controlled.
5.2
Application range
The digital room thermostat can be used with 3-stage
fans in combination with Oventrop two point actuators
(M30x1,5) for room temperature control.
Illustr. 5.1 Display and key functions
6
Installation
6.1
Extent of supply
Before installing the room thermostat, please check delivery for
completeness and any damages caused during transit.
6.2
Installation
Switch off current supply.
Attention!
Do not apply pressure onto the display during installation!
Open casing by pushing back the snap hooks at the lower side with a
3.5 mm screwdriver. Carry out wiring according to the wiring diagram
(illustr. 6.1). Fix casing with the enclosed screws (illustr. 6.2) and close
it again.
2 pipe system
4 pipe system
Operating
function
Heating
Terminal V1
Actuator
NC
Terminal V2
Actuator
NC
Cooling
Terminal V1
Actuator
NO
Terminal V1
Actuator
NC
Illustr. 6.1 Wiring diagram Heating/Cooling in 2/4 pipe systems
Illustr. 6.2 Installation of the thermostat
