Cleaning
CAUTION!
Use only non-chlorine-based cleaners. Use of cleaners containing chlorine can cause staining and
pitting of the stainless steel
Interior
Using a sponge or soft cloth, clean unit with a non-abrasive, non-chlorinated, all-purpose detergent.
Exterior
Wipe exterior with a soft cloth in the direction of grain as needed. Stainless steel polish may be used to enhance
the finish of the unit.
Annual Cleaning
Removal of dust and other particulates from air intake areas and the condenser is important for proper operation.
Under certain conditions, some environments with large amounts of dust may require more frequent cleaning.
1. Move the power switch on lower rear panel to OFF and unplug
the freezer.
2. Remove rear panel (Fig. 20.1).
3. Clean drain pan (Fig. 20.2) with a non-abrasive, non-
chlorinated all-purpose detergent.
4. Use a vacuum cleaner with brush attachment to clean
condenser, compressor motor, and related parts.
5. Reinstall rear panel.
Fig. 20
1
2
Operation
The temperature control board and probe (P1) indicate when the refrigeration system is required to turn on and
off.
The refrigeration system removes heat from the cabinet interior and rejects it to the surrounding room air.
When the cabinet interior temperature rises above the controller cut-in temperature, the controller turns the
refrigeration system on. The controller energizes the evaporator fan and solid-state control relay which energizes
the condensing unit. The compressor uses a current-style starting relay and a starting capacitor to start the
compressor motor.
When the cabinet interior falls below the predetermined cut-out temperature, read by the P1 (control probe),
the controller de-energizes the solid state compressor relay and condenser fan motor. The evaporator fan
continuously runs to acheive desired product temperature.
Any accumulated frost on the evaporator coils melts during the electric defrost cycle. The condensate drains
out of the unit to the condensate tray to the left of the condensing unit. The heat from the condensing unit
evaporates any condensate in the drain pan.
12
FZR1/FZR2 Compact Freezers