Condensate Drain; Safety Valves; Expansion Vessel - Airwell PAC BTE UI 4 Manuel D'utilisation

8 - MAINTENANCE

8.8 - CONDENSATE DRAIN

Dirt or scale can give rise to clogging.
Also, microorganisms and mould can flourish in the bowl.
Foresee periodical cleaning with suitable detergents and,
eventually, disinfect with sanitising products.
Once cleaning is completed, pour water inside the bowl to
check the regular outflow.
8.9 - PERIODIC SYSTEM CHECKS
Charge check of expansion tanks
Water filter cleaning check
Check system and aqueduct operating pressures

8.10 - SAFETY VALVES

The safety valves must be checked regularly.
Almost all losses are caused by impurities deposited inside
the valve.
It's normal if some water drops from the hole of saftey valve
during operation.
But, if there is a great amount of water, call your service agent
for instructions.
Please beware of burn, beware of the hot water from the
valve.
To carry out a wash:
1 - manually open the valve
2 - rotate the knob in the sense indicated by the arrow in the
knob.
A
A System valve (3 bar)
B DHW valve (6 bar)
8.11 - EXPANSION VESSEL- (not supplied)
Check the expansion vessel charge (at least once a year).
First check that the expansion vessel is totally drained of
water.
If you necessary load with nitrogen, take care that the
pressure does not exceed the value indicated on the label.
8.12 - DRAINING TAPS
1. Prior to starting the emptying, position the systems
general switch in the 'off' position
2. Check that the system charging/reintegration tap is
closed.
3. Screw the hose mount onto the drain fitting (C); connect
a duct to the hose mount and direct it towards a suitable
drainage spot.
4. Connect a duct to taps (A-B-D-E) and direct it towards a
suitable drainage spot.
5. Open the unit and system draining taps and all of the
bleeding valves.
Any anti-freeze liquid contained in the system should not be
discharged freely as it is a pollutant.
It must be collected and reused.
A
C
RIGHT Side
B
A System draining tap
System draining tap
B
C Storage draining tap (DHW)
D Solar draining tap
Solar draining tap (DHW)
E
A
B
D
E
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