41
CS200
Control Systems
To make adjustments to a sensor assembly in a refrigerator filled with LN
2
, the following procedure can be
used:
• Measure the LN
2
liquid level in the refrigerator.
• Take this measured level and subtract the offset to determine how many sensors should be in liquid.
• Select
MENU
, Change Settings, Level, Thermistor Status. “L” means a sensor is in liquid while “G” means
a sensor is in gas.
• Move the sensor up or down so that the appropriate numbers of sensors are in liquid “L”.
• Get back to the Thermistor status screen and the level indicated should match the physically measured
reading. The Sensor Offset, the Start Fill and the Stop Fill can all be set through the MENU, Change
Settings, Level, Sensor Position.
Removing/Installing the Solenoid Valve
Remove the controller using the procedures outlined for your particular refrigerator model in the Removing/
Installing the Controller section. Disconnect only the solenoid valve lead connection from the controller board.
Remove the back plumbing cover of the refrigerator to gain access to the plumbing and solenoid valve.
To remove the solenoid valve loosen the compression fitting that connects the plumbing tubing to fill tube.
Unscrew the two (2) mounting screws that hold the solenoid valve to the solenoid bracket. Then remove the
solenoid valve and its associated plumbing. Disconnect the plumbing from the inlet and outlet side of the
solenoid valve.
To install a new solenoid valve, attach the connecting plumbing to the inlet and outlet connections of the valve
using Teflon tape. Attach the compression fitting to the fill tube first and then connect the compression fitting to
the elbow that is connected to the outlet side of the solenoid valve. Position the solenoid valve onto the solenoid
valve bracket and tighten the two (2) mounting screws. Attach the solenoid valve lead connection to the
controller board. At the completion of maintenance or repairs, install the controller using the procedure outlined
for your refrigerator model in the Removing/Installing the Controller section.
Controller
Operation
Содержание CS200
Страница 2: ......
