PENSOTTI PCH 34B-H Instruction Manual page 60

Safety thermostat (see fig. 1)
Disconnect the connecting wire;
Unscrew the fixing screws and remove the
thermostat;
Replace the thermostat and re-assemble the
components following the above procedure in
reverse order;
Switch on the electricity, water and gas supplies
and restart the appliance.
Heating sensor (see fig. 1)
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 supplies,
open the shut-off valves and fill the central
heating circuit. Then restart the appliance,
remembering to discharge any air that may be
trapped in the system;
Gas valve (see fig. 2)
Unscrew the screws connecting the gas
valve to the venturi.
Disconnect the gas feed pipe and valve ring-nut
at the bottom of the room-sealed chamber.
Remove the flanged elbow coupling of the
existing valve and fit it to the new valve; also fit
a new cork washer and a new fiber gasket.
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 supplies
and check for any gas leaks using a soapy
solution or leak detector spray;
MAINTENANCE INSTRUCTIONS
heating
sensor
Fig 1
gas valve
safety
thermostat
Fig 2
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