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JOHNSON CONTROLS Differential Pressure Control: SPDT, Open/Close on Rise and Fall, 208V/240V - Differential Controls
JOHNSON CONTROLSDifferential Controls

JOHNSON CONTROLS Differential Pressure Control: SPDT, Open/Close on Rise and Fall, 208V/240V

The JOHNSON CONTROLS P74FA-1C is a Differential Pressure Control (SPDT) with automatic reset, rated for 240V. It features Open/Close on Rise and Fall switch action and a 1.5 psi differential pressure setting.

SKU 3G-OTH-66796

Also listed as: P74FA1C · P74FA 1C

Brand
JOHNSON CONTROLS
Item
Differential Pressure Control: SPDT, Open/Close on Rise and Fall, 208V/240V
Category
Differential Controls
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Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
P74FA-1C
Type
Open/Close on Rise and Fall, 208V/240V, Auto Reset, 1.5 psi
Reset Type
Automatic
Rated Voltage
240V
Switch Action
Open/Close on Rise and Fall

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JOHNSON CONTROLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JOHNSON CONTROLS P74FA-1C is a Differential Pressure Control (SPDT) with automatic reset, rated for 240V. It features Open/Close on Rise and Fall switch action and a 1.5 psi differential pressure setting.

Frequently Asked Questions

What is a Johnson Controls P74FA-1C differential pressure control used for?

The Johnson Controls P74FA-1C is a differential pressure control used in HVAC and industrial systems to monitor pressure differences. It opens or closes a circuit on rise or fall at a 1.5 psi setpoint, protecting equipment like pumps and compressors from unsafe pressure conditions.

What are the specifications of the Johnson Controls P74FA-1C?

The Johnson Controls P74FA-1C is a SPDT differential pressure control rated for 240V. It features automatic reset and open/close on rise and fall switch action at a 1.5 psi differential. The part number is P74FA-1C.

Where to buy a Johnson Controls P74FA-1C worldwide?

3G Electric supplies the Johnson Controls P74FA-1C differential pressure control worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this part.

How to install a Johnson Controls P74FA-1C differential pressure control?

Install the Johnson Controls P74FA-1C by connecting it to the pressure sensing lines per the wiring diagram. Ensure the 240V supply is off during installation. Mount the control in a dry location and verify the 1.5 psi setpoint before energizing.

Used in

Common applications for JOHNSON CONTROLS
Industrial refrigeration — Johnson Controls P170SA-1C dual pressure control for compressor protection in ammonia or halocarbon systems
Chiller plant automation — Johnson Controls VA7810-HGA-2 electric globe valve actuator for modulating chilled water flow in VG7000 series valves
Pneumatic HVAC retrofit — Johnson Controls T-4002-302 conversion kit for upgrading existing Robertshaw thermostats in commercial buildings
Cooling tower water management — Johnson Controls V-4332-1007 pneumatically actuated diaphragm valve for 3-way diverting of water flow
Boiler fuel oil pressure monitoring — Johnson Controls P545NCB-25C electronic lube oil pressure control with alarm for burner management systems
Process pressure sensing — Johnson Controls P599AAPS105C pressure transmitter with IP67 rating for washdown zones in food and beverage plants

JOHNSON CONTROLS Products

3G Electric supplies JOHNSON CONTROLS differential controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Single Pressure Control: High Limit, Manual Reset, 200 psi to 610 psi, Open on Rise, SPST (MPN P170DA-400C)
JOHNSON CONTROLS
Single Pressure Control: High Limit, Manual Reset, 200 psi to 610 psi, Open on Rise, SPST (MPN P170DA-400C)
Single Pressure Control: High Limit, Manual Reset, 50 psi to 500 psi, Open on Rise, SPST (MPN P170DA-1C)
JOHNSON CONTROLS
Single Pressure Control: High Limit, Manual Reset, 50 psi to 500 psi, Open on Rise, SPST (MPN P170DA-1C)
High Pressure Control: High Limit, Manual Reset, 200 psi to 610 psi, Open on Rise, SPST (MPN P70DA-400C)
JOHNSON CONTROLS
High Pressure Control: High Limit, Manual Reset, 200 psi to 610 psi, Open on Rise, SPST (MPN P70DA-400C)
High Pressure Control: High Limit, Manual Reset, 50 psi to 500 psi, Open on Rise, SPST (MPN P70DA-2C)
JOHNSON CONTROLS
High Pressure Control: High Limit, Manual Reset, 50 psi to 500 psi, Open on Rise, SPST (MPN P70DA-2C)
Single Pressure Control: Low Limit, Auto Reset, 20 in Hg to 100 psi, 7 psi to 50 psi, Open on Rise (MPN P170CA-1C)
JOHNSON CONTROLS
Single Pressure Control: Low Limit, Auto Reset, 20 in Hg to 100 psi, 7 psi to 50 psi, Open on Rise (MPN P170CA-1C)
High Pressure Control: High Limit, Manual Reset, 50 psi to 500 psi, Close on Rise/Open on Rise, SPST (MPN P70KA-1C)
JOHNSON CONTROLS
High Pressure Control: High Limit, Manual Reset, 50 psi to 500 psi, Close on Rise/Open on Rise, SPST (MPN P70KA-1C)

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This differential pressure control features SPDT switch action that opens and closes on both rise and fall of differential pressure. It is rated for 208V/240V with automatic reset and a setpoint of 3.5 psi. Commonly used in HVAC, refrigeration, and industrial fluid systems to monitor and switch electrical circuits based on pressure differential changes
JOHNSON CONTROLS
This differential pressure control features SPDT switch action that opens and closes on both rise and fall of differential pressure. It is rated for 208V/240V with automatic reset and a setpoint of 3.5 psi. Commonly used in HVAC, refrigeration, and industrial fluid systems to monitor and switch electrical circuits based on pressure differential changes
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