Service manual

Evaporator Replacement
1 Go through all steps to remove the gear
reducer.
2 Add temporary refrigeration system access
valves to the discharge and suction sides of the
refrigeration system .
3 Recover the refrigerant.
4 Un-sweat the suction line and cap tube
connections from the evaporator.
5 Remove original dryer.
6 Attach permanent access valves to system.
7 Attach dry nitrogen to system and purge at
about 1 lb pressure while brazing all
connections, including access valves, dryer
and evaporator.
8 Remove nitrogen source, evacuate system to
300 microns or less.
9 Weigh in the nameplate charge.
Water Reservoir
1 Pull unit out to get access to top and back
panel.
2 Shut water supply off.
3 Pull drain plug and drain all water. Return plug
to its original position.
4 Loosen nut at water valve inlet and separate
inlet tube from reservoir valve.
5 Pull outlet hose off reservoir tank.
6 Remove screws holding reservoir to unit and lift
off.
7 Reverse steps to reassemble.
Controller
1 Pull out to get access to top panel.
2 Remove top panel.
3 Disconnect electrical power.
4 Remove control box cover
5 Unplug all wires.
6 Remove screws holding controller to box.
7 Remove controller.
8 Before touching replacement controller, touch a
metal surface of the cabinet to discharge any
static electricity.
9 Place new controller in control box, connect all
wires previously removed.
10 Reverse remaining steps to reassemble.
Ice level sensor
1 Pull out to get access to top panel.
2 Remove top panel.
3 Disconnect electrical power.
4 Remove control box cover
5 Unplug wire at J9.
6 Remove 5 screws and lift sensor from control
box.
7 Replace with new part.
8 Reverse remaining steps to reassemble.
May 2011
Page 18
SCN60
Service
Ice Level
Sensor