32
WATER VALVE REMOVAL
The water valve is connected to the refrigeration system by
capillary tube brazed to the discharge line.
A.
Turn off and disconnect the water supply. Blow out
the water lines with compressed air or CO
2
.
B.
Recover refrigerant charge per instructions in
Section 5.2.
C.
Leave the suction and discharge ports open to
prevent pressure buildup during water valve removal.
D.
Unsweat the capillary tube from the discharge line.
E.
Remove the clamps from the water lines at the
valve.
F.
Remove the two screws holding the water valve to
the frame and remove the valve.
WATER VALVE REPLACEMENT
To replace the water valve, perform the following proce-
dures:
A.
Position the water valve and attach to the frame
using the two screws.
B.
Install the water lines onto the valve with hose
clamps.
C.
Leave the suction and discharge ports open to
prevent pressure buildup during water valve
installation.
D.
Braze the capillary tube into the system.
E.
Connect the water supply line and turn on the water
supply.
F.
Check for leaks in the water lines. If there are no
leaks, turn off the water supply.
G.
Replace the filter drier. Refer to Section 5.8 for
details.
H.
Evacuate and recharge system per instructions in
Section 5.2.
I.
Turn on the water and check for leaks in the water
lines with the refrigeration system running.
J.
Adjust the valve as necessary.
5.7 SOLENOID
Solenoid valves are installed on the liquid and suction lines
of each freezing cylinder evaporator and on the liquid line of
the hopper evaporators (Refer to Figure 5-11 and Figure 5-
12). A solenoid valve has a magnetic coil that, when
energized, lifts a plunger and allows refrigerant to flow. The
solenoids are activated by the IntelliTec control and deter-
mine which evaporator receives refrigeration.
The suction line solenoid prevents refrigerant flow in the
evaporator when the suction pressure drops due to the
operation of the other evaporators in the system.
ACTIVATING A SOLENOID
To open a solenoid, follow these steps:
A.
Turn the Main Power OFF/ON switch and both
Freezing Cylinder OFF/ON switches to the OFF
position.
B.
Locate the compressor contactor behind the right
side panel and disconnect the two blue wires at
terminal #82.
C.
Wrap electrical tape around disconnected terminal
to insulate it.
D.
Remove belts from the pulleys to allow drive motors
to spin freely.
E.
Connect power to the machine.
F.
Turn the Main Power OFF/ON switch and Freezing
Cylinder OFF/ON switches to the ON position.
G.
Press the Push To Freeze button on both IntelliTec
controls. This will energize the solenoid valves.
Figure 5-11 Liquid Line Solenoid Valve
Figure 5-12 Suction Line Solenoid Valve
Summary of Contents for Stoelting E131-OT2
Page 1: ...Model E131 OT2 F131 OT2 SERVICE MANUAL Manual No 513648 Rev 0 https appliancetechmanuals com ...
Page 2: ...https appliancetechmanuals com ...
Page 14: ...8 https appliancetechmanuals com ...
Page 16: ...10 https appliancetechmanuals com ...
Page 26: ...20 Figure 4 2 IntelliTec Control Menu Settings https appliancetechmanuals com ...
Page 52: ...46 8 2 AUGER SHAFT AND FACEPLATE PARTS https appliancetechmanuals com ...
Page 60: ...54 8 9 REFRIGERATION DIAGRAM WIRING DIAGRAM 01 2 3 3 3 3 https appliancetechmanuals com ...
