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Replacement Procedures
Service Manual
SKOPE Reflex Underbench Fridge and Freezer
• Intrinsically safe refrigeration vacuum pump, rated by the manufacturer as suitable for use
with hydrocarbon refrigerant
• Charging scales, rated by the manufacturer as suitable for use with hydrocarbon
refrigerant, accurate to 1.0 gm
• Hydrocarbon refrigerant supply cylinder
Refrigeration Cartridge
The following test is useful to do in a hydrocarbon-compliant workshop (see “Off-site Work” on
page 29) to work out if the system is short of gas. Always perform it before opening the
refrigeration system.
It is helpful to have a correctly operating cassette running beside the cassette being serviced
to compare behaviour
Note: This diagnostic procedure is indicative only.
Procedure 14: To diagnose lack of gas
1. Unplug the cabinet from the power supply (see “Disconnect the Cabinet from the Power Supply”
on page 24).
2. Remove the refrigeration cartridge (see “Removing the Cartridge” on page 31), including the
controller and wiring loom assembly.
3. Unplug the evaporator fan motor (white 4-pin plug) from the wiring loom.
4. Install the door switch jumper (white 2-pin plug) into the wire harness.
5. Remove the evaporator tub cover and install a blocker to prevent the condenser airflow from
affecting the evaporator coil.
6. Connect the refrigeration cartridge to the power supply and allow to run for approximately
10 minutes until the evaporator temperature stabilises.
7. Optional: For enhanced diagnostics, connect to the controller via a Bluetooth-enabled device with
the WDT SCS Connect Field app installed.
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