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6.3 - Replacing the capacitor
a) Disconnect the power supply to the ICM before carrying out
any work on the unit.
b) Loosen the securing collar and disconnect the fresh air
supply duct.
c) Unscrew the 6 hexagon head screws securing the fan access
panel. Remove the panel.
d) Unscrew the capacitor securing collar(s). Each collar is held
in place by a hexagon head screw (8 mm AF).
e) Disconnect the capacitor by withdrawing the flat spade
connectors from the back of the capacitor.
f) Reversing the above procedure, replace, secure and connect
the new capacitor.
16
Flat spade connectors
7 - WATER COIL
7.1 - Removing the water coil
WARNING:
Disconnect the power supply to the ICM before carrying out
any work on the unit.
a) Close the isolating valves on the manifolds.
b) Unscrew the 1/2" gas connections to disconnect the flexible
water pipes.
c) Disconnect the quick connect power supply cables at the
Carrier numeric controller. Do not disconnect the on/off valves
used with the electromechanical controller (wall-mounted
thermostat).
d) Remove the two-way or three-way water flow control valve
bodies. Depending how the ICM is configured, the coupling
on a three-way valve may be fitted with a heating/cooling
changeover switch. If so, do not remove it.
e) Disconnect the flexible condensate drain pipe which is held
in place by a collar (the collar is not supplied by Carrier).
f) Remove the 4 hexagon head screws (8 mm AF) and slide
out the coil and drain pan assembly.
g) Reverse the removal procedure described above to instal the
replacement coil and drain pan assembly. Ensure that all joints
are made correctly and are leaktight.
WARNING:
Bleed all air from the coil when it is refilled.
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