Water inlet coupling

6.Connect the seven electrical cables to the front of the water group controller.

7.Replace the AC transfer switch ("Replacing the AC transfer switch" on page 28).

8.Complete the operation checklist (on page 111).

The water inlet coupling is located on the inlet water hose connected to the MCS unit.

The following tools are required for installation:

•5-mm Allen wrench

Removing the water inlet coupling

1.Power down the MCS unit. ("Powering down the MCS unit" on page 24)

2.Shut off the water flowing into the MCS unit. ("Shutting off the water" on page 25)