Helmer Scientific i.Series
®
Ultra-Low Freezer
Service and Maintenance Manual
360173-A/C
26
4.5
Clean Ultra-Low Freezer
WARNING
Disconnect the freezer from AC power prior to cleaning the condenser with a liquid cleaner to prevent an electrocution hazard.
CAUTION
•
Avoid sharp edges when removing and installing the condenser grill and filter.
• Use appropriate gloves when handling stored inventory.
NOTICE
• Protect items in freezer from extended exposure to adverse temperature.
• Allow chamber temperature to stabilize at setpoint before moving product back into the freezer.
Condenser
Clean the condenser
1. Lift the condenser grill upward and pivot the top edge away from the freezer. Then lift the bottom edge of the grill upward to
disengage the tabs at the bottom of the grill from the freezer base and remove.
2. Clean the condenser using a soft brush and a vacuum cleaner.
3. Reinstall the condenser grill by inserting the tabs at the bottom of the grill into the corresponding holes in the freezer base.
Pivot the top of the grill toward the freezer until the magnets engage.
Condenser Filter
In environments where freezer is exposed to excessive lint or dust, the condenser filter may require cleaning more frequently than
stated in preventive maintenance schedule.
Clean the condenser filter
1. Pivot the top of the condenser grill away from the freezer.
2.
Lift the filter upward and remove from the slots on the back of the grill.
3.
Clean the condenser filter with warm water and a mild detergent.
4.
Rinse the filter under warm water. The filter must be rinsed from back to front so water flows in the opposite direction of
the airflow.
5.
Allow the condenser filter to dry thoroughly.
6.
Reinstall the condenser filter by inserting the filter into the slots on the back of the grill. The filter must be installed so the wire
mesh faces toward the condenser (inside).
7. Pivot the top of the grill toward the freezer until the magnets engage.
Exterior
Clean the exterior surfaces of the unit with a soft cotton cloth and non-abrasive liquid cleaner.
i.C
3
®
Touchscreen
Note
Do not use solvent or alcohol-based cleaners to clean the i.C
3
touchscreen.
Clean the i.C
3
touchscreen with a soft, dry cotton cloth.
