SECTION 5

SEQUENCE OF OPERATIONS

5.1 LIGHTS

On/Off light switch is independent of all other switches. When on, the light transformer is operational and the lights illuminate.

5.2 SWITCHES

 

 

On/Off/Clean

Mode

 

Switch

Switch

 

Position

Position

Sequence of Operations

Clean

Serve

-Drive Motor and Condenser Fan Motor start and run together,

 

or

No time limit exists.

 

Standby

-Power Transformer, torque switch, compressor, liquid level

 

 

control, and mix low light are non-operational.

On

Serve

-Drive Motor and Condenser Fan start and run together

 

 

continuously.

 

 

-Power Transformer is on.

 

 

-Liquid level control and mix low light are operational.

 

 

-With liquid mix or loose slush in the freezing cylinder, the torque

 

 

switch is closed. The delay-on-make timer starts the compressor

 

 

after a 10-30 second delay.

 

 

-When the slush reaches consistency, the torque switch opens

 

 

and the compressor immediately shuts off. The drive motor and

 

 

condenser fan motor continue to run.

On

Standby

-Power transformer, liquid level control and mix low light are

 

 

operational only when the temperature control is closed.

 

 

-Drive motor, condenser fan motor, and compressor cycle on and

 

 

off with the temperature control (compressor start delays 10-30

 

 

seconds).

NOTE

If the temperature control is set too cold, control will default to the torque switch to prevent freeeze-up.

5.3 SAFETY SWITCH

Door Switch - If the front door is removed, the freezer will not function.

Motor Internal Thermostat - If the motor overheats, the freezer will not function.

Warning - The motor internal thermostat automatically resets as the motor cools. The freezer will automatically restart. Disconnect freezer from power source for servicing.

High Pressure Cutout Switch - If the compressor discharge pressure exceeds 470 PSIG, the freezer will not function.

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