Heat exchangers
6
Flow sensor Uniflow SW4000 or Weber 4120M
Function:
Monitoring the water flow in order to lower the water consumption depending on
workload of the DMI-motor
Verification:
Readings should say “Zero” when the valve is shut. Compare with the other flow
sensor/meter when valve is opened
Adjustment:
Contact ABB
7
Leakage water detector, SIE07065
Function:
Top- and side-mounted heat exchangers:
If a water leakage occurs or if there is condensation inside the heat
exchanger, water will be evacuated through the leakage air filter canal and an
alarm goes off.
Verification:
Top-mounted heat exchangers:
Remove the make-up filter box from the heat exchanger as seen in picture 25.
Then remove the filter and the grating. The alarm must go off when touching the
sensor by hand or pouring some water on it.
Side-mounted heat exchangers:
Unscrew the detector from the heat exchanger. The alarm must go off when
touching the sensor by hand or pouring some water on it.
Adjustment:
The setting depends on the type of heat exchanger. The settings from the factory
will be sufficient for most cases. However, if the humidity is high a slight
adjustment as per the attachment might be necessary on site.
7. Water leakage detector
12. Water tray
13. Leakage air filter with grating
Picture 25 The leakage air filter box removed
