Wall mounting
Precautions
The appliance must be installed on a suitable wall that allows for the
installation of a horizontal or vertical flue.
- To allow maintenance operations, leave the minimum distances
shown (Fig. 8) around the appliance.
Location
- If the appliance is positioned in areas exposed to the risk of frost,
the water heater must be disconnected and drained of water – see
Winterisation section.
Fig. 8 - Minimum required distances
Connection of the water heater to the water, gas and flue
gas exhaust systems and the room where the heater is to
be installed must comply with the rules and regulations in
force, see above.
Following installation of the water heater, check the tight-
ness of all the gas and water connections.
Installation of this appliance should be carried out by a Gas
Safe Engineer in the UK or other qualified personnel.
Verify if the available gas type and pressure corresponds
to that indicated on the appliance data plate.
Install an isolation valve on the gas supply, upstream of the
appliance, in a visible and accessible position and as close
as possible to the appliance.
Check the water hardness (200 ppm maximum allowable
total hardness). If it exceeds 200 ppm a scale reducing
device must be fitted upstream from the appliance for
softening water. Hard water will slowly reduce the
operational efficiency and reliability of the water heater.
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