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PRESSURE CONTROLS (RANCO)

» » PRESSURE CONTROLS (RANCO)

RANCO pressure controls are designed to switch electrical loads such as contactors, relays, fans and motors in HVAC and Commercial applications in response to changes in sensed refrigerant pressure.

APPLICATIONS INCLUDE: Control of suction pressure in either an operating or limit control role. Control of high side pressure in either an operating or limit control role. Condenser fan cycling. Compressor Lube Oil Protection.

RANCO oil differential pressure controls / switches are for use with all refrigeration with compressors using external oil pumps with refrigerants. It protects the compressor against loss of lubricating oil pressure which could otherwise cause severe bearing damage resulting in a compressor breakdown. Connected to the crankcase and oil pump by capillaries, the pressure switch senses the difference between the pressure in the crankcase and that of the outlet side of the oil pump.

APPLICATIONS INCLUDE: Time delay to avoid nuisance shutdown. Choice of safety timings.

 

Product Models

ModelFunctionRangeDifferentialCapillary LengthResetMinimumMaster Carton

G20-4051

High / Low Pressure7 to 7719 to 7060"AutoPER UNIT1
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010-1402

Low Pressure12" to 505 to 3536"AutoPER UNIT21
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010-1483

Low Pressure10" to 10010 to 4036"AutoPER UNIT21
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012-1502

Dual Pressure12" to 50 / 150 to 4505 to 35 / 70 fixed36"AutoPER UNIT18
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012-1506

Dual Pressure12" to 50 / 100 to 2505 to 35 / 70 fixed36"AutoPER UNIT18
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012-1549

Dual Pressure10" to 100 / 150 to 45010 to 40 / 70 fixed36"AutoPER UNIT18
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012-1594

Dual Pressure10" to 100 / 150 to 45010 fixed / 70 fixed36"ManualPER UNIT18
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012-4834

Dual Pressure10" to 100 / 150 to 45010 to 40 / 70 fixed48"ConvertiblePER UNIT18
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016-200

High Pressure150 to 45040 fixed48"ManualPER UNIT21
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P30-3601

Oil Pressure60 Sec.8 to 60 Adj.36"ManualPER UNIT20
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P30-3701

Oil Pressure90 Sec.8 to 60 Adj.36"ManualPER UNIT24
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P30-5826

Oil Pressure120 Sec.9 fixed36"ManualPER UNIT24
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