Maintenance - Chaffoteaux & Maury BRITONY SX 14 FF Installation, Servicing And User's Manual

IMPORTANT:
In the event that there is a risk of the appliance freezing, close the cold water inlet valve and drain the water heater by opening a
hot water tap, see Section 2.5 Useful Information.

2.4 Maintenance

Note: Before carrying out any maintenance or repair work on the appliance, the water heater MUST be disconnected
from the electrical mains and the gas and water isolating valves MUST be closed.
CHAFFOTEAUX & MAURY recommends that the water heater be serviced by authorised personnel once a year.
The checks to be carried out are the following :
• The electrical installation is in good condition (the cable is not worn, there are no deposits of oil or grease on the
electrical connections, etc.);
• Check the appliance for leaks of gas and water;
• The combustion product ducts should be free from obstacles, correctly sealed and in good condition;
• The flow of gas and the gas pressure must be within the indicated values (See 3.2);
• Clean the burner and the heat exchanger.
Cleaning the burner
Remove the burner and clean the nozzles with a soft brush or with compressed air. Do not use chemical products (See 7.2.3);
Remove the ionisation and ignition spark devices in order to clean the tips (See 7.2.2);
Every 3 years the set of electrodes should be replaced.
Cleaning the heat exchanger
Clean the heat exchanger with hot water. If it is very dirty, leave the heat exchanger to soak in hot soapy water.
Refit the heat exchanger using new washers.
Cleaning the casing
Clean the casing with a damp cloth (
Preventing lime scale build-up
If the appliance is installed in an area where the water is very hard, and over time it is observed that:
• there is a decrease in the temperature of the hot water, or
• there is a decrease in the flow of hot water
this means that lime scale has built up in the body of the heater.
In order to reduce this effect, we recommend that the desired water temperature is obtained by adjusting the power and gas con-
trols and the temperature selector, and not by mixing the hot water from the heater with cold water.
In hard water areas a scale reducer is recommended to reduce the likelihood of scale formation in the heat exchanger.
Device for controlling the extraction of combustion products (air pressure switch).
Important : The user is not permitted to tamper with the device in any way. Under no circumstances is it to be disconnected,
modified or replaced by a different piece.
2.5 Useful Information
During cold spells, and if the appliance is situated in a place where it is subject to freezing conditions, the water circuit in the
appliance should be emptied in the following manner:
Turn off the cold-water tap supplying the water heater.
Turn on a hot-water tap which is fed by hot water from the water heater (this tap must be lower than the water heater itself).
Open the drain screw which can be found on the water valve (See 7.3.3).
DO NOT USE ANY DETERGENTS
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