Icom IC-M71 Instruction Manual page 134

CONTAINERIZED KITCHEN (CK)
UNIT MAINTENANCE PROCEDURES
Exhaust Fan: Turn OFF and lock or tag Intake/Exhaust Fan circuit breakers #2 and #4 on the
Power Distribution Panel. Remove and retain the four mounting bolts on the exhaust duct and
remove the fan assembly. Disconnect the power cable and replace the fan using the retained
hardware.
Intake Fan: Turn OFF and lock or tag Intake/Exhaust Fan circuit breakers #2 and #4 on the
Power Distribution Panel. Remove the intake filter and disconnect the power cable. Remove
and retain the fan mounting bolts. Install the replacement fan, replace the mounting bolts and
connect the power cable. Insert the intake air filter in the duct.
Air Conditioner:
Shut off and tag the ECU circuit breaker at the Power Distribution Panel
before performing any maintenance on the air conditioners.
Removal: Shut off and tag the ECU circuit breaker at the Power Distribution Panel. Detach the
fabric air duct. Remove the access panel from the side of the air conditioner. Label and
disconnect the wires from the terminal block. Reattach the access panel. Disconnect the
condensation drain line.
Remove the two access panels in the food preparation area. Remove the bolts connecting the
air conditioner shock mounts to the support frame. A forklift is required to remove the air
conditioner from the Mechanical Room. Using a forklift, lift the replacement air conditioner
through the double doors of the Mechanical Room being careful that the air conditioner clears
the doorway. Remove and retain the shock mounts.
Install: Install the shock mounts.
conditioner with the corresponding holes in the support frame. When the air conditioner is
properly aligned, tighten all the mounting bolts.
Insert the power wiring through the hole in the electrical enclosure behind the electrical cover
plate. Connect the power cables and attach the electrical enclosure cover plate.
Reattach the air duct and the condensation drain line. Install the two access panels in the food
preparation area. Turn on power at the Power Distribution Panel and check for proper operation
as described under TEST, earlier.
ECU Controller Board: The ECU Control Box (Figure 4) is located in the Mechanical Room
next to the air conditioners. Make sure the Air Conditioner and the ECU Control circuit breakers
on the Power Distribution Panel are turned OFF and tagged or locked. Open the front panel of
the ECU Control Box and label the wires to terminal boards P1 through P5 as shown in Figure
1. Remove the wires and the four mounting screws. Install the replacement PC board and the
mounting hardware. Reconnect all wires to the terminal boards P1 through P5. Turn on the
circuit breakers and check the air conditioners for proper operation as described earlier under
TEST.
TM 10-7360-226-13&P
WARNING
Align the four mounting holes of the replacement air
0018 00-5
0018 00