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The Johnson Controls P74FA-1C Differential Pressure Control; SPDT; F/Water SYS.; DIFF 2# SNAP ACTING 1/4″ MALE FT.
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
| Weight | 4 lbs |
|---|---|
| Dimensions | 13 × 6 × 3 in |
| Part Number | P74FA-1 |
| Manufacturer |
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