Duke GES-102, Руководство оператора с иллюстрированным перечнем запчастей, Страница: 72 / 107

Soft Serve Freezer Model GES-102
62 184559
15 VQM Error Codes
(continued)
COMP. LO
PSI
Occurs when low
pressure control is
activated.
Action: Cylinder
refrigeration is off,
Cabinet refrigeration
Continues to operate.
Reset Method: Main
Power Switch, once
the condition has been
rectified.
1. System is Short on
refrigerant
2. Solenoid valve not
activating
3. Low pressure control
is Faulty.
4. Restriction is
refrigeration system.
5. Faulty wire
connection.
6. System component
failure
1. Locate refrigerant leak and repair as
needed. Ensure refrigeration system is
evacuated to at least 200 microns.
2. Determine if Solenoid coil is
receiving proper voltage (208/230
Volts), If coil is receiving voltage,
ohm out coil windings. If coil is
not receiving voltage, check relay
responsible for activating coil and
repair as needed.
3. Confirm Low pressure control is
faulty by installing manifold gauges to
confirm suction pressure is above cut-
in set point of control. Replace control
as needed
4. Locate and remove restriction i.e.
restricted drier, AXV closed down,
Solenoid valve not opening etc.
5. Repair connection as needed i.e.
faulty connection on LPCO, etc.
6. Locate failed component
(Diagnostics Mode in Technician
Menu will aid in locating) i.e. solenoid
coil, AXV valve not opening, control
relay, Compressor contactor staying
energized causing unit to pump down,
etc. and repair as needed.
COMP. HIGH
PSI
Occurs when the High
pressure control is
activated.
Action: Cylinder
refrigeration is off,
Cabinet refrigeration
Continues to operate
Reset Method: Main
Power Switch, once
the condition has been
rectified.
1. Dirty Condenser Air
Cooled
2. Bad Condenser Fan
Motor (A/C Only)
3. Dirty Condenser
(Water Cooled)
1. Blow out and clean Air cooled
condenser re-start system and check
unit operation.
2. Replace Condenser motor as
needed. Check system operation
3. Check inlet and outlet water
temperature on condenser, it should
be at least 20°F difference from inlet
to outlet. If there is no temperature
change, condenser is fouled out and
will need to be cleaned, or changed.
If this condition is present, contact the
H.C. Duke & Son Technical Support
Line.