Flexit EcoNordic WH4 - 5. Routine Maintenance; 5.2. Internal Module and Safety Valve

5. Periodic maintenance
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instructions in this chapter. All other maintenance
should be carried out by service personnel.
Component Remedy ΖQWHUYDO
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6–12
months
Gaskets &KHFNWKDWWKHJDVNHWVVHDOVRIWKHYHQWLODWLRQXQLWGRRUDQGWKHȴOWHUJDVNHWVDUHXQGDPDJHG
and tight.
12 months
Valves ΖQWDNHDQGRXWOHWDLUȴOWHUVLQEDWKURRPVEHGURRPVODXQGU\HWFPXVWEHFOHDQHGDWOHDVW
once per year. Check how many turns are needed to unscrew the valve. Screw it in again with
the same number of turns.
12 months
Air intake Check that no leaves or other objects have become stuck in the grid.
During the winter the air intake may freeze, and this should be checked regularly
(daily, if necessary).
If necessary, scrape to remove impurities so that the air can pass through.
12 months
Roof hood If the unit has a roof hood, this should be checked for leaves, etc. Also check that the drainage
channels are not blocked.
12 months
Ducts Check that the ducts are clean. 10 years
Inside the
ventilation
module
The combination of a very low outdoor temperature and damp outlet air can lead to ice
formation. This is not usually a problem; as soon as the operational conditions return to
normal, the ice crystals are converted into steam and removed with the exhaust air. If
extremely cold temperatures persist for a long period, the unit should be checked for ice.
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6–12
months
General inspection
of the product
In order for the warranty to be valid, a general inspection of the product, including fans, rotor,
brush strips etc. should be carried out by an authorised service technician.
3 years
Safety valve Open and close the safety valve to make sure the overpressure protection is working. See
Chap. 5.5.
The valve may drip slightly during hot water production. If the dripping is extensive and for long
periods, contact your distributor.
6 months
Drainage cup Clean the drainage cup by removing any leaves, etc. See Chap. 5.6. 6 months
Addition for WH4
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heating medium side
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6 months
Pressure on heating
medium side
Check that the heating system maintains its original pressure according to the installer’s
instructions.
6 months
!
DANGER
Put the product in service mode
and then disconnect the power
before service is performed.
Service mode
1. Start the Flexit GO app and select the
product you want to service.
2. Enter the service menu (More >
Service)
3. Select ”Service mode”. The product
will now make a controlled
shutdown. The shutdown time
depends on the operating mode.
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Service can now be carried out.
e
17
ECONORDIC WH4/W4