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Culmi Air-Cond & Refrigeration Parts Supply Sdn Bhd
24, Jalan Industri USJ 1/5,
Taman Perindustrian USJ 1,
47600 Subang Jaya,
Selangor, Malaysia.
+603-8024 7376 +603-8081 3378
+603-8024 7387Johnson Controls P74 Series Differential Pressure Controls
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Johnson Controls P74 Series Differential Pressure Controls
Model
PENN P74JA-2C Floating Contact
Replaced With
P74JA-3C Type Differential Pressure Control With Floating Action Switch
Model
PENN P74JA-2C Floating Contact
Replaced With
P74JA-3C Type Differential Pressure Control With Floating Action Switch
Description
Series P74 measures the pressure difference between two sources: supply lines and return lines. A change in differential pressure will reposition the switching mechanism to cause corrective action of the supplementary control equipment.
Features
• field-proven Pennswitch with a completely enclosed contact mechanism
• pressure differential setting is easily changed without removing the cover
Applications
• differential pressure sensing on chillers or water-cooled condensers
• lube oil failure cutout for refrigeration compressors (same as the P28, but does not incorporate time delay)
• positioning M100 Series motor-actuated valves (P74JA-2)
• to prove pump operation
Accessories
All models on this page include a universal mounting bracket.