The P70, P72, and P170 Controls for Dual Pressure Applications are designed primarily for use as combination high and low pressure controls on commercial refrigeration and air conditioning applications. These controls are available in several pressure ranges and are compatible with most common refrigerants. Ammonia compatible models are also available. These controls respond directly to system pressure changes on both high and low sides, and can provide single-device control of the compressor.

Johnson Controls C878-3

Ranco O10-1402 Single Low Pressure Control, SPST Opens On Low Pressure Switch, 36" Capillary, Import

Robertshaw C900-24

Johnson Controls C878-90 Limit Control 7-150 psi
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Johnson Controls C878-36

Ranco C900-24 Low Pressure Switch Auto Reset SPDT,
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Robertshaw C900-22

Roberetshaw C900-22 Low Pressure Control SPDT Auto Reset,
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Robertshaw C900-10

Johnson Controls C879 Manual Reset Lube Oil Pressure Cutout Control with Time Delay 8 - 70 psi,
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Johnson Controls C878-90

Ranco O10-1483 Automatic Reset Low Pressure Switch, 10 - 100 psig, 10 - 40 psig Differential, 36" Capillary with Flare Nut

Motors & Armatures 43331

Ranco O12-4834 Compact Dual Pressure Control, 10 - 100 psig Low, 150 - 450 psig High, SPST

Robertshaw C900-64

Ranco C900-62 Dual Pressure Control
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Robertshaw C900-60

The Ranco dual pressure controls combine the functions of a single high-pressure limit control and a single low-pressure control in one unit with a single pole, single throw (SPST) switch.

• A high-pressure limit is combined with suction pressure sensing to provide temperature control and/or pump down
• High limit adjustments screw
• Low pressure differential and range adjusting screws
• High impact plastic cover with centre mount screw
• Super Cap capillary protection system
• Color-coded for easy identification of pressure line
• Low pressure scale plate
• High pressure scale plate
• High side capillary flare nut (silver)
• Low side capillary flare nut (brass)
• NEMA 1 enclosure with non-conductive cover
• Universal mounting and compact design

Sid Harvey Item #:C900-60: Replaces Part #:'s : AP32-1021 | AP32-1297 |,

Robertshaw C900-55

Ranco O12-1549 Dual Pressure Control, 150 - 450 psi, 70 psi Differential, 1/4" SAE Flare Nut, SPST, 120/240 VAC

Robertshaw C900-62

Ranco O12-4833 Dual Pressure Control, 12 - 50 psig Low, 150 - 450 psig High, SPST

Robertshaw C900-72