16
3. installation
IMPORTANT!!
B
E
SURE
TO
REMOVE
THE
DISPLAY
CABLE
FROM
THE
PCB
BEFORE
COMPLETELY
REMOVING
THE
CASING
.
3.8.8. Wall Mounting
Fix the water heater to the wall using suitably sized screws
using both brackets at high and low level.
3.8.9. Connecting the Heater to the Water and Gas Supplies
Before connecting up the appliance it is necessary to
thoroughly fl ush and purge the water and gas pipes in order to
remove fi lings or other waste from them;
Connect the water heater using the corresponding washers
and connectors which are supplied in the bag of accessories;
Place the casing back on and secure it in place;
Replace the gas knob and the temperature selector knob;
IMPORTANT!!
The maximum inlet water pressure must be limited to 6 bar.
If the water supply is more than 6 bar or subject to pressure
fl uctuations above 6 bar, a pressure limiting valve must be
installed to limit the pressure to 6 bar maximum.
3.8.10. Sealing the Water Circuit
Open the water inlet tap into the appliance by turning the cold
water inlet valve on the heater fully on. Bleed any air from the
water pipes by opening all the taps: hot and cold. Then turn off
all the taps and check for water tightness.
Sealing the Gas Circuit
IMPORTANT!
Test for tightness in accordance with current regulations.
3.8.11. Connecting the Water Heater to the Electrical Mains
The water heater is fi tted with an electrical supply cable for a
220-230V~50Hz mains supply.
It is to be connected to a single phase power supply with an
earth.
In order to protect the heater it is necessary to have a bipolar
switch with a minimum opening distance of 3mm.
IMPORTANT : Whenever carrying out an operation on the
electrical installation of the heater, make sure that the
heater is disconnected from the mains electrical supply
The new power cable is to have the same specifi cations as the
one originally installed in the heater.
The means to isolate the power supply should be easily
accessible.
3.8.12. Purging the Gas Supply
Once all the above checks are complete, it will be necessary
to purge the gas supply of air.
Do not
under any circumstances
attempt to purge the gas pipe of air by continually pressing the
On/Off button to reset. If it is necessary to do this, you must
wait at least three minutes between each press of the On/Off
button.
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