CME1356R and CME1656R
Removal and Replacement
Transformer and Compressor Starting
Components
Single phase compressors use a start relay, start capacitor and run capacitor. All are located in a sheet metal box to the right of the AutoIQ Controller. The compressor contactor is also located in that box.
1.Disconnect electrical power.
2.Remove front panel.
3.Remove 2 screws at the front edge of the metal box, and pull the cover forward and out.
4.To check components, reconnect electrical power.
Note: The contactor coil is 24 volt.
Evaporator Support Bracket
In the unlikely event that the evaporator support bracket needs to be replaced, two people will be needed.
1.Remove both front panels and the top panel.
2.Push and hold the Off button until the machine stops.
3.Remove evaporator cover.
4.Remove the interior splash panels.
5.Remove the hoses from the water distributors.
6.Use wire ties to hang the front of the evaporators from the upper cross brace.
7.Place a clean rag under the planned cut point and saw the old bracket in half and remove it.
8.While holding the bracket so that the right end is higher than the left, insert the right end in the vertical channel in the right side of the freezing compartment.
Then, while the helper lifts the
The freezing compartment walls may be pushed apart slightly to make this easier.
9.Push up enough on the left end of the bracket until it snaps into the vertical channel in the left side of the freezing compartment.
10.Check that all evaporators are properly seated front and back.
11.Remove the wire ties, and return the splash panels, hoses, and evaporator cover to their
normal positions. Check that water distributors are in place.
12.Push and release the Freeze button to start the machine.
13.Check operation.
14.Return the top and front panels to their normal positions.
Refrigeration System Components
Due to the expected level of training and experience of a refrigeration mechanic, detailed instructions regarding the replacement of refrigeration components will not be presented. However, critical items will be noted here.
Evaporators
In the unlikely event that an evaporator may need to be replaced, do NOT braze the evaporator joints when the evaporators are seated in the freezing compartment, instead lift them up slightly so that the joints to be brazed are above the top edge of the freezing compartment.
Compressor
The compressor should not be replaced until it has been determined that it has definitely failed. If it will not start check the starting components first. If the machine has low capacity, check for proper charge, TXV operation, hot gas valve leak thru or inlet water valve leak thru.
The metal bracket in front of the compressor must be removed to access the compressor.
March 2003
Page 42
