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DC Operation, Belt-Driven Systems
MARINER SERIES
MARINER MODELS
Grunert
Holdover Refrigeration Systems
Designed for use with 12 or 24 volt DC power supplies,
the Mariner Series has been proven to be the ideal system
for seafaring vessels with or without on-board AC power.
Its unique design allows for automatic operation by either
the alternator or energized battery charger. An electrical
interlock prevents accidental battery drain.
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Unique compact base fits any application.
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Standard equipped with cupronickel seawater
condenser for improved efficiency and lower
operating pressure.
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Effectively cools one or multiple boxes of virtually
any configuration.
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Remote electrical box is completely enclosed
to protect all components.
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Condensing units can be installed in any
convenient location.
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Continuous duty cycle rating,
and replaceable brushes
on all DC motors.
MODEL No. DC425BD DC450BD DC475BD DC4100BD
Refrigerant Charge: 26 oz. 26 oz. 55 oz. 55 oz.
Capacity BTU/H • 26°F
1
: 1800 3400 5000 6500
Capacity BTU/H • 0°F
1
: 1600 2800 4200 5500
Electrical
Motor Voltage (DC): 12 12 / 24 12 / 24 12 / 24
Amperage: 21 40 / 20 58 / 29 80 / 39
Max. Circ. Breaker
2
: 30 50 / 30 70 / 40 100 / 50
Dimensions
Depth: 18" 18" 18" 18"
Width: 14.5" 14.5" 16.5" 16.5"
Height: 11" 11" 12" 12"
Weight: 86 lbs. 90 lbs. 95 lbs. 98 lbs.
1
BTU/H ratings are the average rate of heat extraction from holdover plates and are not the capacity of the compressor or condensing unit. These gures are to be used to determine
run times to maintain box design temperatures.
2
For wire size, ampacity, etc., refer to ABYC Standards, section E-9. (DC Voltage)