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148 OLD CONCORD TURNPIKE BARRINGTON, NH 03825 USA
DESCRIPTION
The Sea Frost Bait Freezer system consists of several parts: The cold plates or
wrapped box liner (hidden cooling coils), a refrigerant control valve, copper connecting
lines, a receiver filter drier with sight glass, a compressor / condensing unit and a
thermostat.
OPERATION
With the thermostat in the "on" position, the compressor, fan, and pump will operate.
Within a few minutes of starting the Bait Freezer, the tubing in close proximity to the
valve and the valve itself will be noticeably cold. (see drawings in back of manual for
valve location) (If after 10 minutes of operation the cooling in this area is not
observed, do not continue to operate the system.)
After several hours, the box temperature will cool to well below freezing.
The first plate or the top section of a wrapped box will cool first. Because it freezes first,
all the moisture suspended in the air within the box condenses and freezes at this plate.
Frost is not a good indication of proper operation; check the temperature with a
thermometer. When the box and contents cool to the desired setting, the compressor
and fan will cycle off and on periodically to maintain the set temperature.
SEA FROST BAIT FREEZER
BF 3.5 404a
Pre- charged System
Air & Water
110 OR 220 volt
TEL (603) 868-5720
1
www.seafrost.com
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Summary of Contents for Sea Frost BF 3.5
- Page 1 110 OR 220 volt DESCRIPTION The Sea Frost Bait Freezer system consists of several parts: The cold plates or wrapped box liner (hidden cooling coils), a refrigerant control valve, copper connecting lines, a receiver filter drier with sight glass, a compressor / condensing unit and a thermostat.
- Page 2 The condensing unit should be mounted with the compressor at the bottom parallel to the boat’s water line at rest. The BF 3.5 is both water and air cooled. Air is drawn through the unit and discharges at the fan screen on the upper left side. The unit depends on a water pump to cool it.
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Page 3: Quick Connect Fitting Instructions
Tighten the screws. For fully welded solution filled plates SEA FROST holdover plates mount with a "Wellnut" expandable neoprene blind hole fastener. A template or the part itself should be used to locate the mounting hole tabs. - Page 4 If installing this compressor in an existing system. Use LSA line adapters to interface with the new compressor. Attach the LSA fittings to the existing lines from the cold plates or wrapped coils, evacuate using a vacuum pump, leak check, and then add a vapor charge of R-404a before connecting to the pre- charged condensing unit.
- Page 5 THERMOSTAT Thermostat Location The BF 3.5 Ranco ETC thermostats are low voltage and are connected and powered by the built-in transformer in the compressor cabinet. Mount the thermostat in a dry location. The thermostat is not weather proof. The sensing bulb wires may be extended if needed to reach the insulated box.
- Page 6 After assembly, externally mounted, valves will need to be insulated to prevent frost and sweating. BF 3.5 R-404a units are set at 15 psi. Factory set valves have heat shrink over the plastic cap. This indicates the valve has been set at the factory. Do not remove, unless troubleshooting.
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Page 7: Reading The Sight Glass
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. - Page 8 RE-CHARGING OR ADDING REFRIGERANT Refrigerant R-404a is a mix of refrigerants. It must be liquid charged. SINGLE ZONE SYSTEMS (1 Box) Adding refrigerant will not change the suction (low) side pressure when the system is built with a CPV valve. The low side pressure with the compressor running will be fixed depending on the CPV valve setting.
- Page 9 Thermostat Operation – Ranco The thermostat is pre-set and locked at the factory. When locked the keypad is disabled and changes to the settings cannot be made. To change the settings the lockout switch must be placed in the unlock position. To access the lockout switch: 1.
- Page 10 DEFROSTING The unit will require defrosting from time to time as the frost layer builds up. Bait Freezer Specifications BF 3.5 110 VOLT BF 3.5 220 VOLT Amp Start (LR) A.C. amp draw Horsepower BTU per hour 1044 1044 Height 16”...
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