52
Response SE Combi -
Installation
83 CH EXPANSION VESSEL REPLACEMENT
1.
Refer to Frame 60.
2.
Remove the boiler casing. Refer to
Frame 53.
3.
Drain the boiler. Refer to Frame 72.
4.
Undo the expansion vessel flexible hose
connection.
5.
Undo the top retaining bracket screw
and remove.
6.
Slide the expansion vessel out of the
support rails.
7.
Fit the new vessel and re-assemble in
reverse order.
8.
Check the operation of the boiler.
SERVICING
IMPORTANT
Before starting the removal procedure, protect the gas and
electrical controls with a waterproof sheet or plastic bag.
1.
Refer to Frame 60.
2.
Remove the boiler casing. Refer to Frame 53.
3.
Remove the boiler sealing panel. Refer to Frame 54.
4.
Drain the boiler. Refer to Frame 72.
5.
Drain the heat exchanger via the drain point.
6.
Remove the flue thermostat. Refer to Frame 61.
7.
Remove the fan assembly. Refer to Frame 55.
8.
Remove the burner assembly . Refer to Frame 56.
9.
Remove the condensate trap. Refer to Frame 73.
10.
Remove the CH expansion vessel. Refer to Frame 83.
11.
Remove the pump. Refer to Frame 79.
12.
Remove the water pressure switch (hidden). Refer to
Frame 82.
13.
Undo the 2 back retaining screws.
14.
Disconnect the flow and return thermistor sensor leads.
84 HEAT EXCHANGER REPLACEMENT
SER
VICING
