Fitted Equipment
1. Check that the safety/drain valve in the
cold-water intake is closed. Lever should
be in the horizontal position, position (e).
2. Open the hot tap in the bathroom or
kitchen with pre-selecting mixing taps or
single lever fittings set to hot.
3. Switch on power for water pump (main
switch or pump switch). Leave the tap
open to let air escape while the water
heater is filling. The heater is filled when
water flows out of the tap.
Residues of frozen water can prevent
filling if there is a frost. The water heater
can be defrosted by switching on the
heater for a short period (max 2 mins).
Frozen pipes can be defrosted by heating
the room.
Note: If just the cold water system is being
used, without water heater, the heater tank is
also filled up with water. In order to avoid
damage through frost, the water contents
must be drained by activating the
safety/drain valve, also when the heater has
not been used. As an alternative, two shut-off
valves, resistant to hot water, can be fitted in
front of the cold and hot water connection.
Draining the water heater
1. Disconnect power for water pump (main
switch or pump switch).
2. Open hot water taps in bathroom and
kitchen.
3. Open safety/drain valve: Lever in vertical
position, position (f).
4. The water heater is now drained directly to
the outside via the safety/drain valve.
Check that the water contents have been
completely drained (10 litres).
Gas operating instructions
Attention: Never operate the water heater
without water in it!
If the wall cowl is positioned close to an
opening window (or hatch) - in particular
directly under it - it must remain closed
when the water heater is in use (see
warning plate).
1. Remove cowl cover.
65
2. Open gas cylinder and open quick-acting
valve in the gas supply line.
3. Select required water temperature at rotary
knob (c) infinitely variable from approx. 30°
to 70°C.
4. Switch on water heater at the rotary switch
(a) on the control panel, green indicator
lamp "Operation" lights up.
5. If there is air in the gas supply line, it may
take up to a minute before the gas is
available for combustion. If the appliance
switches to "Failure" during this period,
switch off the appliance - wait 5 minutes -
and switch on again!
a = Rotary switch "On" "Gas operation"
b = Rotary switch "Off'"
c = Rotary knob for temperature
selection (illuminated by green
lamp "Operation")
d = Red indicator lamp "Failure"
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