4.7. Pump
Subject
Description
Function of Part
It pressurises the water in the closed-circuit installation
and provides water circulation. In addition, it ensures the
removal of air in the installation with water circulation.
Impact in Case of Malfunction
1-
The boiler gives overheating error.
2-
Heated water does not transmitted to the installation.
3-
The cryoprotection function does not work properly.
4-
In case the air
purge
on the pump fails, water can be
discharged instead of air and the installation pressure
decreases.
Main Associated Error Codes
E03, F37, E80
Diagnostics and Test Method
1- Visual inspection of electrical connection.
2- Voltage measurement between phase and neutral
inputs while the power is on.
3- Resistance measurement between phase and
neutral inputs while the power is off.
Maintenance Requirement
There is no special maintenance requirement.
Test definition
Test Method
Voltage Measurement
In operating condition, the voltage measured between
the blue and brown cables should be 210-240 VAC.
Resistance measurement
When the pump's cable is disconnected, there should be no
short-circuit when the resistance is measured between the
pins where the blue and brown cables are connected. If
there is a short-circuit, it means that the pump motor has
burned out.
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