4.2.2
To Clean and Replace the ComfoAir CA155CM Heat Exchanger
•
Clean approximately at two year intervals.
•
Replace approximately at five year intervals.
HR155CM heatexchanger step1
2
3
1
HR155CM heatexchanger step2
Step 1
Isolate ComfoAir CA155CM from the
Mains Supply. Rotate and unlock the tabs
(
u
), Slightly pull down the top part (
v
) of
the front panel and pull out (
w
) of locating
tabs and condensate connection located
at the bottom of the unit.
Step 2
Unscrew the six heat exchanger locating
screws and remove panel.
Note: Ensure you support the Heat
Exchanger cover when removing the
final screw.
Note: Take care when removing lid as a small amount of water maybe present.
HR155CM heatexchanger step3
HR155CM heatexchanger step4
Step 3
Supporting with your hand, gently
remove the heat exchanger, taking care
not to tilt it to an angle as water will be
present. Clean each face of the heat
exchanger with a vacuum cleaner and
wash with warm water, take care not to
cause damage to the unit. Ensure heat
exchanger is dry before continuing to
Step 4.
Step 4
Re-insert the cleaned or new heat
exchanger, taking care not to cause
damage. Support in place with hand until
completing Step 5.
HR155CM heatexchanger step5
HR155CM heatexchanger step6
2
1
3
Step 5
Reposition the panel against the unit and
secure with the six locating screws.
Step 6
Re-connect the front panel (
u
) into the
condensation connection point and the
bottom locating tabs and position back
against the unit (
v
). Rotate the two
retaining latches to secure (
w
). Turn
the Mains Supply back on. Reset Heat
Exchanger Status
(See Section 4.1.5)
.
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