MAINTENANCE INSTRUCTIONS
56
Circulating pump
(motor body) (see fig. 1)
• Close the shut-off valves and drain the central
heating circuit of the water heater;
• 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 water heater.
Diverter valve
(see fig. 2)
Replacing the diverter valve body
• Close the shut-off valves and drain the central
heating circuit of the water heater;
• 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 water heater.
Replacing the motor
• Unscrew the fixing screws securing the transparent cover of the diverter valve and remove the cover;
• Unscrew the two motor fixing screws and disconnect the wires;
• Replace the motor and re-assemble the components following the above procedure in reverse order;
• Replace the motor and re-assemble the components following the above procedure in reverse order;
Fig 1
circulating
pump
diverter valve body
diverter valve motor
Fig. 2
To Next Page
Loading...