The controller can operate a circulation pump, which
stops when there is no demand for heating or cooling.
NOTE!
See the documentation from the circulation
pump supplier as well as relevant Uponor
wiring diagrams before connecting the pump.
• The controller cannot supply power for the pump.
• The controller uses a dry contact connection on the
terminal block to control the circulation pump.
• The electrical circuits of the pump must be
protected by a circuit breaker with a maximum
rating of 8 A.
The circulation pump is connected to the controller.
The illustration below shows how to connect a
circulation pump to the controller.
PUMP
PUMP
To connect a circulation pump to the controller:
Electrical installation and service behind
secured 230 V AC covers must be carried
out under the supervision of a qualified
electrician.
1. Study the wiring diagram, in the end of the manual
or inside the cover of the controller, to locate the
connector positions.
2. Ensure that the power is disconnected from both
the controller and the circulation pump.
3. Remove the screw and open the cover for the
optional connections compartment.
4. Route the cable to/from the pump via a cable entry.
5. Connect the L wire to/from the pump via the
connection labelled PUMP.
NOTE!
There is no power in the controller to supply
the pump. The pump connector in the
controller provides only a dry contact to switch
off and on the power connection to the pump.
6. Secure the pump cable with a cable clamp in the
enclosure.
7. Close and secure the lid to the optional connections
compartment.
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