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Removal and replacement procedures 78
Removing the HEX coupling
1. Shut off the water flowing into the MCS unit. ("Shutting off the water" on page 25)
2. Remove the corresponding fan unit. ("Removing the fan unit" on page 51)
3. Remove the corresponding air deflector plate. ("Removing the air deflector plate" on page 33)
4. Disconnect the temperature sensor cable from the heat exchanger unit.
5. Slide back the insulation on either the In or Out water hose.
6. Using the water hose fitting wrench and the counter hold wrench, disconnect either the In or Out
water hose from the heat exchanger unit.