3 Product description
2017/02
994536093x-mub-en – V01
9
3.5
Pump [specialist]
Isolation of the pump
The pump can be completely isolated. It can be replaced and maintained without draining the
HeatBloC.
1.
Close the ball valves in the flow and the return (A-2, F-2).
2.
Remove the actuator from the mixing valve.
3.
Turn the rotary knob of the mixing valve such that the black nose is directed to "VL zu"
(flow closed).
3.5.1
Pump settings
The pump has been correctly adjusted at the factory. In the case of a breakdown of the control
(no PWM signal), the pump runs at maximum rotation speed. To assure a proper functioning of
the heating circuit, the pump must be set as follows:
•
PWM profile (heating)
3.5.2
Pump settings Grundfos UPM3 Hybrid
The following code must appear on the pump display. The code can be verified by briefly
pressing the push button. Please observe the separate instructions of the pump!
Yellow
Off
Off
Yellow
Red
