Heatline SARGON 18S, Installation, Servicing And User Instructions Manual, Page: 37 / 54

33
• Fit the replacement motor in reverse order ensuring the correct polarity of the
electrical connections
• Open the isolating valves on the fl ow and return connections, re fi ll, vent and re-
pressurise the water system to 1.5bar ensuring the pump union joints are sound.
In case of pump body damage:
• Remove the motor as described above.
• Remove the expansion vessel pipe connection 8
by releasing the clip on the pump body.
• Remove the pressure switch connection as detailed
in section 18.12.
• Disconnect the pumps outlet fi tting.( fi gure 38)
• Remove the fi xing screws on the pump and
hydraulic block, located at the bottom right of the boiler.
(
fi gure 39)
• Remove the pump body assembly.
• Detach the pump body from the hydraulic block
by removing the clip.
• Fit the replacement body in reverse order ensuring that the pump washers are fi tted
and the correct polarity of the electrical connections is maintained.
• Open the isolating valves on the fl ow and return connections, re fi ll, vent and
re-pressurise the system ensuring the pump union joints are sound.
18.7 Primary Heat Exchanger and Burner
• Read the notes at the head of this section before commencing any work
on the appliance.
• Disconnect the pipes from the heat exchanger.
• Release the union connections on the pump and hydraulic block, retaining the washers
for re-assembly.
• Remove the pump, heat-exchanger and heat-exchanger three-way valve connecting
pipes.
• Remove the burner as detailed in (17.7)
• Remove the screws from the brackets retaining the exchanger.
Figure 38
Figure 39