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 C901-60 Temperature Control SPST 0/55 Degrees SPST,
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Robertshaw C901-60

Sealed Unit Parts Stainless Steel Auto Reset High Pressure Switch, 24/120/240 VAC, SPST, 10 psi Open, 25 psi Close

Sealed Unit Parts C900-181

Sealed Unit Parts Stainless Steel Auto Reset High Pressure Switch, 24/120/240 VAC, SPST, 5 psi Open, 90 psi Close

Sealed Unit Parts C900-184

Sealed Unit Parts Stainless Steel Auto Reset High Pressure Switch, 24/120/240 VAC, SPST, 25 psi Open, 65 psi Close

Sealed Unit Parts C900-183

Sealed Unit Parts Stainless Steel Auto Reset High Pressure Switch, 24/120/240 VAC, SPST, 5 psi Open, 20 psi Close

Sealed Unit Parts C900-180

The single-stage A19BAC and the two-stage A28AA thermostats incorporate single-pole double-throw (SPDT) switches for controlling automatic ventilation or heating in livestock barns, poultry houses, milk houses, brooder houses and other buildings. The 30 to 110°F (0 to 43°C) and 0 to 140°F (-15 to 60°C) temperature ranges permit use for many space applications.

Johnson Controls C877-1

Sealed Unit Parts Stainless Steel Auto Reset High Pressure Switch, 24/120/240 VAC, SPST, 425 psi Open, 300 psi Close

Sealed Unit Parts C900-179

Sealed Unit Parts Stainless Steel Auto Reset High Pressure Switch, 24/120/240 VAC, SPST, 350 psi Open, 250 psi Close

Sealed Unit Parts C900-175

Sealed Unit Parts Stainless Steel Auto Reset High Pressure Switch, 24/120/240 VAC, SPST, 400 psi Open, 200 psi Close

Sealed Unit Parts C900-177

Sealed Unit Parts Stainless Steel Auto Reset High Pressure Switch, 24/120/240 VAC, SPST, 275 psi Open, 195 psi Close

Sealed Unit Parts C900-170

Ranco A30-262 Constant Differential Temperature Control, 3 - 43 deg F, 24/120/240/277 VAC, 84" Capillary

• Laser-welded stainless steel bellows
• High-amperage contacts
• Pneumatic action provided by vapor-filled capillary or capillary with bulb sensing elements
• Standard 1/4" quick connect terminals with optional screw terminals

Sid Harvey Item #:C904-30: Replaces Part #:'s : A-12365 | A-12756 | A-12765,
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Robertshaw C904-30