Johnson Controls C878-90 Limit Control 7-150 psi
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The P70, P72, and P170 Controls for low pressure applications are designed primarily for low pressure cut-out control, pump-down control, and capacity control on commercial refrigeration and air conditioning applications. These controls are available in several pressure ranges and are compatible with most common refrigerants. They may also be used on other non-corrosive fluid applications. Ammonia-compatible models are also available. Controls also are available in several different electrical ratings and switch configurations. The P72 models provide direct control of 208 to 240 volt single-phase motors up to 3 horsepower, and 208 to 220 volt three-phase motors up to 5 horsepower.

Johnson Controls C878-1

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

Robertshaw C900-70

Johnson Controls C879-8 Oil Lube Control 1/4" Male Flare 120 Seconds Manual Reset
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Johnson Controls Penn P70MA-1C Dual Pressure Control, 20" Hg - 100 psig Low, 100 - 500 psig High, SPST, 1/4" Flare Nut

Johnson Controls C878-26

Johnson Controls Penn P7 1-Unit Low Pressure Control, 12" Hg - 8 psi Control, SPST Opens on Low Pressure Switch, Import

Johnson Controls C878-3

Roberetshaw C900-22 Low Pressure Control SPDT Auto Reset,
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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 C878-33

Johnson Controls Penn P70CA-3C Single Pressure Control, 50 - 500 psi, SPST, 1/4" Flare Nut

Johnson Controls C878-16

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

Robertshaw C900-10

Johnson Controls C878 Single Pressure Control 40 Open (psi) Opens On Low Pressure,
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Johnson Controls C878-10 Hi Pressure Control 0-150 Lbs,
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Johnson Controls C878-10