Operator`s manual

VirTis BenchTop 2K, 4K and 6K Optional Components

Revision 004, 12/09 33

BenchTop Cold Plate

The optional BenchTop cold plate can be cooled to -40 °C within 30 minutes when

fully insulated and covered. The cold plate will remain lower than -40 °C after the

cover is removed. These specifications are based on SP Industries test data from

similar units operating with no load.

Initial Setup of the BenchTop Cold Plate

Remove all packing materials carefully and inspect for shipping damage. In the event

that shipping damage has occurred, retain all packing material and immediately

contact your freight carrier.

PROPERTY CAUTION! THE COLD PLATE IS CONNECTED TO THE BENCHTOP UNIT BY A FLEXIBLE

HOSE. THE FLEXIBLE HOSE IS CHARGED WITH REFRIGERANT AND THEREFORE SPECIAL CARE

SHOULD BE TAKEN WHEN REMOVING THE COLD PLATE AND BENCHTOP UNIT FROM THE SHIPPING

CONTAINERS. THE FLEXIBLE HOSE MAY BE SHAPED OR FORMED WHEN THE UNIT IS AT ROOM

TEMPERATURE. DO NOT BEND THE HOSE WHILE AT LOW OPERATING TEMPERATURES

1. Position the BenchTop unit on a stable, flat surface. The cold plate must be

fully insulated and have a removable cover (i.e., 1/2-inch thick Styrofoam

board or polyurethane foam). This will ensure that the lowest possible

temperatures will be achieved. The hose between the plate and the unit is

very flexible and can also be inserted into the rear of the unit (approximately

10 inches) so that the length can be adjusted.

2. Verify the outlet you intend to use provides the same voltage and ampacity

listed on the serial tag of your unit (i.e., 100-115 Volts, 15 Amps, 60Hz).

3. Verify the shelf thermocouple probe is inserted into the well at the rear of the

cold plate, and the thermocouple connector is plugged into the shelf probe

receptacle at the rear of the BenchTop cabinet.

Cold Plate Operation

1. Ensure that the power cord is plugged in. Switch the circuit breaker on the

rear of the BenchTop cabinet to the “ON” position.

2. Press the COND button on the front panel of the BenchTop to start the

compressor and begin cooling the cold plate. Wait approximately 30 minutes

for the condenser temperature to reach -40 °C. After about an hour, the unit

will be capable of achieving lower temperatures (i.e., -50 °C).

3. The cold plate is now ready for use.

Note: When the cold plate is in operation and no product is being added, the cold plate

should be covered to prevent frost build-up.

4. When finished, press the COND button to disable the refrigeration system and

disable cooling to the cold plate.

PRACTICAL OPERATING TIP. THE ONLY BUTTON REQUIRED FOR OPERATING THE COLD PLATE IS

THE CONDENSER (COND) BUTTON. THE DEFROST, VACUUM AND AUTO BUTTONS DO NOT HAVE A

FUNCTION FOR THE COLD PLATE APPLICATION.