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Replacing the Low water pressure switch
Before carrying out the following instructions it is advisable to protect the area and the boiler's PCB housing
A
against accidental water spillage.
Cleaning or replacing the flowmeter
Before carrying out the following instructions it is advisable to protect the area and the boiler's PCB housing
A
against accidental water spillage.
5
•
Isolate the power supply and close the Gas isolation valve to the boiler.
•
Remove the diverter valve motor head (see fig. 47).
•
Close the cold water inlet isolation valve and open a hot water tap in the property
•
Release the retaining clip "4" and remove the flowmeter assembly "5" by pulling upwards.
•
The flowmeter components can thus be cleaned or replaced (see fig. 48 and fig. 49).
38
3
1
2
fig. 46
4
fig. 47- Flowmeter
cod. 3541T010 - Rev. 00 - 10/2019
BLUEHELIX PRO RRT 24 C
•
Isolate the power supply and close the Gas isola-
tion valve to the boiler.
•
Turn off the Flow & Return isolation valves & drain
the boiler (see system draining fig. 16).
•
Remove the electrical connection "1" and fasten-
ing spring clip "2".
•
Remove the water pressure switch "3".
•
Clean or replace the LWP switch then apply sili-
cone grease to the 'O' ring before replacing.
1 - Flow-rate limiter
2 - Impeller
3 - Filter
4 - Clip
5 - Flowmeter
1
2
3
EN
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