48
SERVICING
excel HE -
Installation and Servicing
78 RECUPERATOR REPLACEMENT
1.
Refer to Frame 51.
2.
Remove the boiler front, side and sealing panels. Refer
to Frame 44 and 45.
3.
Drain the boiler water circuits. Refer to Frame 67.
4.
Pull off the electrical connection from the condensate
blockage thermistor.
5.
Unscrew the condensate blockage thermistor.
6.
Pull off the recuperator LH side pipe retention clip and
pull the pipe downwards to disengage 'O' ring seal.
7.
Disconnect recuperator plastic drain connection from
recuperator RH side.
8.
Unscrew the union connection on the recuperator RH
side brass outlet connection and swivel the brass piece
to clear the copper pipe.
9.
Remove the condensate drain point from the top of the
recuperator.
10.
Remove the fan. Refer to Frame 53.
11.
Remove the single fixing screw from the bottom rear of
the recuperator connecting the recuperator to the back
panel.
12.
Carefully pull the recuperator downwards to disengage
the flue turret connection.
13.
Fit the new recuperator and reconnect all flue, water
pipe, condensate drain and thermostat connections
with the new gaskets provided. Ensure the recuperator
and fan are aligned correctly before tightening the
recuperator fixing screw.
14.
Re-assemble in reverse order.
15.
Refill the boiler. Refer to Frame 32.
16.
Check the operation of the boiler. Refer to Frame 50
and 51.
SER
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