MAINTENANCE INSTRUCTIONS
52
Circulating pump
(motor body) (see fig. 1)
•
Close the shut-off valves and drain the central
heating circuit of the boiler;
•
Use a 5 mm Allen key to unscrew the four screws
securing the motor body to the impeller body;
•
Remove the motor body and check the condition of
the washer. If necessary, replace the washer;
•
Replace the circulation pump 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.
Restart the boiler.
Diverter valve
(see fig. 2)
Replacing the diverter valve body
•
Close the shut-off valves and drain the central
heating circuit of the boiler;
•
Unscrew the fixing screws securing the transparent
cover of the diverter valve and remove the cover;
•
Unscrew the four fixing screws and remove the
diverter valve body and washer;
•
Replace the valve body 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.
Restart the boiler.
diverter valve body
diverter valve motor
Fig. 1
circulating
pump
Fig. 2
Summary of Contents for RKA 34
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