Alarko SERADENS SRD 20, Инструкция по установке, эксплуатации и обслуживанию

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54
Safety thermostat (see fi g. 26)
● Disconnect the connecting wire;
● Unscrew the fi xing screws and remove the
thermostat;
● Replace the thermostat and re-assemble
the components following the above proce-
dure in reverse order;
● Switch on the electricity, water and gas sup-
plies and restart the appliance.
Heating sensor (see fi g. 26)
● Un-Plug the connecting wire;
● Replace the sensor and re-assemble the
components following the above procedure
in reverse order;
● Switch on the electricity, water and gas sup-
plies, open the shut-off valves and fi ll the
central heating circuit. Then restart the ap-
pliance, remembering to discharge any air
that may be trapped in the system;
Gas valve (see fi g. 27)
● Disconnect the joints and remove the gas
pipe connecting the gas valve to the ven-
turi.
● Disconnect the gas feed pipe and valve
ring-nut at the bottom of the room-sealed
chamber.
● Remove the fl anged elbow coupling of the
existing valve and fi t it to the new valve;
also fi t a new cork washer.
● Replace the gas valve and re-assemble the
components following the above procedure
in reverse order.
● Replace all the gas seals.
● Fully tighten the gas connections.
● Switch on the electricity, water and gas sup-
plies and check for any gas leaks using a
soapy solution or leak detector spray;
heating
sensor
safety
thermostat
gas valve
Fig. 2
Fig. 1
26
27