Sea Frost Bait Freezer manual Voltcircuit, Re-Chargingor Adding Refrigerant

220-VOLT CIRCUIT

A separate 10-amp breaker is required for the 220-volt supply. This circuit powers the thermostat through a built in transformer. For operation, it is necessary to have power at all times.

RE-CHARGING OR ADDING REFRIGERANT

Adding refrigerant will not change the suction (low) side pressure. Do not charge more than 12 oz of R-134a in an empty system. Typical head pressure will be about 25 degrees above air temp. If you are adding refrigerant and exceed the calculated head pressure you are overcharging and may risk breaking the compressor valves. Do not adjust the charge to prevent frost back. The return line may be well below freezing in normal operation. Contact the factory if you have questions.

READING THE SIGHT GLASS

SIGHT GLASS DETAIL

Clear or empty

Stationary bubbles

Foam (low charge)

A clear sight glass, when the compressor is operating, signifies a sufficiently charged system. To determine the meaning of "clear", notice the appearance of the RFD sight glass when the system is at rest with the compressor off. This is a "clear" glass.

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