IBC Technologies Inc.
1-844-432-8422
|
www.ibcboiler.com
120-538E0
-
October 20, 2023
- Released Document
3 of 6
Note
A ladder or step may be required to have a clear vertical view of the work area.
Do not attempt to remove the assemblies without a clear view, as damage to the connectors,
screws or refractory may occur.
CX 150 Heat Exchanger Lid Replacement
Preparing the Unit for Servicing
1. Remove call(s) for heat.
2. Remove power to the unit at a wall switch or a breaker.
3. Shut off gas supply to the boiler.
4. Allow the boiler to cool down.
5. Remove the front cover, and then remove the four Torx 20 head screws on the top panel of the combi
boiler.
Accessing the Service Area
A. Removing the Gas Line and Gas Valve:
a. Unplug the electrical connection to the gas valve.
b. Undo the union nut (A) at the gas inlet(B).
c. Undo the union nut (C) connecting the gas valve
outlet pipe to the mixer (D).
d. Carefully remove the gas line and valve assembly
and set aside for re-installation.
Figure 1
CX Gas Line Assembly Removal
B. Removing the Fan/ Mixer assembly:
a. Remove the electrical connection to the fan.
b. Unscrew the two nuts at the base of the fan, and retain for re-installation.
c. Carefully lift and tilt the fan/ mixer assembly backwards to safely remove it from the heat
exchanger lid.
d. Remove and retain the fan gasket.
