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4 | Maintenance
hot water
cold water
4.1.
Venting
1.
Shut off electric supply
2.
Open the hot water tap in order to vent the water installation (for about 15-30 seconds),
until the flow of water becomes constant and even
3.
Close the valve
4.
Switch electric supply on
4.2.
Operating
The unit is equipped with a differential pressure switch. It switches heating automatically when there is a proper water flow through the unit.
4.3.
Maintenance
1.
Cut off power and cold water supplies
2.
Undo the fittings on the inlet pipe
3.
Take the filter out from the fittings at the cold water inlet
4.
Clean and install the filter in the former position
5.
Connect cold water supply pipe with the inlet pipe
6.
Open the cut-off valve on cold water supply pipe - check connections for leaks
7.
Vent the unit and water system
Do this each time any pipework has been disrupted.
12
ELECTRIC INSTANTANEOUS WATER HEATER EPO
instantaneous
water heater
filter
cut off valve
cut off
valve
cut off
valve
fIlter
hot water
cold water
instantaneous
water heater
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