Radiant RK 34/B Ekobox, Инструкция по эксплуатации

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MAINTENANCE INSTRUCTIONS
40
Electric fan
(see fig. 1)
•
Remove and dismantle the entire burner unit (see
6.6.1 “Cleaning the burner unit”).
•
Use an 8 mm spanner to unscrew the four nuts
securing the electric fan to the gas manifold and then
remove the electric fan, noting the positions of the
washer and diaphragm.
•
Remove the air intake duct, unscrew the two fixing
screws from the venturi and remove the electric fan,
paying particular attention not to damage the cork
gasket.
•
Replace the electric fan and re-assemble the
components following the above procedure in
reverse order.
•
Switch on the electricity, water and gas supplies and
check the soundness of the joint by measuring the
CO
2
levels;
Expansion vessel
(see fig. 2)
•
Close the shut-off valves and drain the central heating circuit of the boiler.
•
Use a 19 mm spanner to unscrew the pipe coupling to the vessel.
•
Unscrew the fixing screws and remove the upper mounting bracket. Remove the expansion vessel from the front
of the boiler.
•
Replace the expansion vessel and re-assemble the components following the above procedure in reverse order.
•
Switch on the electricity, water and gas supplies and fill the system with water. Check for any leaks from the
joints and bleed off any air from the circuit;
venturi
electric fan
Fig. 1