Johnson Controls P100AP-354 Pressure Control
The Johnson Controls P100AP-354 is a professional-grade encapsulated pressure control designed for heavy-duty condenser fan cycling in commercial refrigeration and HVACR systems. Built for direct-mount applications, this SPST pressure switch features an automatic reset mechanism that opens on focus pressure drop at 210 PSIG and closes at 275 PSIG. The JCI P100 series is engineered with a compact, dust-tight open construction, allowing it to be mounted directly to refrigeration piping without additional brackets, which reduces vibration stress and installation time. Compatible with all non-corrosive refrigerants, its 120/240 Vac contact ratings ensure seamless integration with standard motor control circuits. The 1/4 inch SAE female flare fitting includes an internal Schrader valve depressor for high-integrity connections. Technicians rely on the P100AP-354 for precise, factory-calibrated setpoints that maintain stable head pressure during low-ambient conditions, ensuring optimal compressor efficiency and system longevity in demanding environments.
Key Benefits- Direct Mount Design: Lightweight and compact form factor allows for mounting directly onto the system piping, minimizing the risk of leaks associated with capillary tubes.
- Environmental Protection: Encapsulated switch assembly provides a dust-tight seal, protecting internal contacts from contaminants and moisture common in outdoor condensing units.
- Precision Calibration: Factory-set 210/275 PSIG thresholds provide repeatable performance without the risk of field-tampering or calibration drift.
- Broad Compatibility: Rated for both 120V and 240V circuits and suitable for use with R-22, R-404A, R-410A, and other non-corrosive refrigerants.
- What is the primary application for this switch? It is specifically calibrated for condenser fan cycling to maintain proper head pressure in refrigeration and air conditioning systems.
- Does this unit require a separate mounting bracket? No, its direct-mount 1/4 in. SAE female flare fitting allows it to be threaded directly onto a 1/4 in. male flare access port.
- Can it be used as a high-pressure cutout? While it senses pressure, its specific 210/275 PSIG range and "open on drop" logic are optimized for fan cycling; always verify that setpoints match your safety requirements.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
QUESTIONS & ANSWERS
Ask a Question-
How does this work? It has continuity at zero psi. My fan is running at start up and it doesn't get to 275 psi. I want it to cycle my fan for low ambient conditions.
Description
P100 Series switches are encapsulated,
nonadjustable, single-pole, single-throw
(SPST), direct-mount switches for use with
non-corrosive refrigerants. The switches are
available with automatic reset in both open
low and open high configurations and manual
reset with open high action.
Refer to the P100 Series Encapsulated
Pressure Controls Product Bulletin
(LIT-121485) for important product
application information.
Features
• compact size and light weight allow for
direct mounting
• trip-free manual reset (manual reset
models); contacts cannot be overridden by
continued depression of the reset button
• use with all non-corrosive refrigerants
• encapsulated switch, dust tight
• 1/4 in. Internal flare fitting with built-in
Schrader type depressor is standard
• electrical connections are made to 48 in.
leads
Applications
• low limit, high limit, and fan cycling control
in commercial refrigeration
• ice machines
• food service equipment
Repair Information
If the P100 Series Encapsulated Pressure
Switches fails to operate within its
specifications, replace the unit. For a
replacement switch, contact the nearest
Johnson Controls® representative.