The thermal actuator is suitable to be mounted on all underfloor heating manifolds, thermostatic valves bodies and three-way valves. Allows automatic shut-off of the system fluid under the control of a room thermostat or another electrical switching device.
Features:
- Normally closed
- 2 wires as standard
- No tools required for fitting
- Silent operation
- Compact design
- CE marked in accordance with EN 60529
Mounting onto the manifold
- Remove the existing isolating cap
- Position the actuator onto the port value
- Tighten the ring nut by hand- do NOT use a spanner or similar tool.
- Connect the electrical wiring to complete.
Function of Normally Closed Version (NC)
- When applying the operating voltage, the expansion system of the actuator will be heated. After passing the dead time a uniform procedure will follow.
- When the voltage supply is cut off, the actuator will automatically close after passing the dead time due to calling of the expansion system.
Note: in case of any functional testing, be aware of the dead time behaviour and take this into consideration. The opening and closing ties will depend upon the ambient temperature.
Technical Data |
Operating voltage |
230v/AC, 25v/DC (+10%/-15%) |
Frequency |
0 up to 60Hz |
Power consumption |
3w (VA) in continuous operation |
Starting phase |
90w (VA) |
Version |
NC |
Closing and opening times |
approx. 3min |
Overvoltage protection |
Varistor |
Approvals |
CE |
Type of protection |
acc. To EN 60529 |
Connecting cable |
standard type 1m fixed; 2*0.75 mm² |
Ambient temperature |
0°c up to 50°c during operation |
Medium temperature |
max. 100°c |
Storage temperature |
-20°c up to +70°c |
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