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Johnson Controls P70AA-118C Single Pole High Pressure/Condenser Fan Cycling Control

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Special Price $139.38 Regular Price $160.29
In stock
SKU
P70AA-118C
The Johnson Controls P70AA-118C High Pressure/Condenser Fan Cycling Control is a pressure-dependent component used to regulate the operation of the condenser fans depending on the pressure in the system. It operates on an internal pressure-sensing diaphragm that opens or closes the SPST switch in a 100-400 PSIG range with a 1/4-inch external flare connector to measure refrigerant pressure in operation in air conditioning and refrigeration HVAC systems. It is mounted to the refrigerant pressure line, whereby the connector is connected to the system piping and the electrical terminals are connected to the fan control circuit.
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HVAC Accessories, Condensers & Evaporators
Manufacturer:
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Specifications

  • Type: Condenser Fan Cycling Control
  • Switch Type: SPST
  • Range: 100 to 400 psi
  • Connection: 1/4 in Flare Nut
  • Differential Pressure: 35 to 200 PSI
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Product Questions (2)
Customer Questions
What maintenance is required for the Johnson Controls P70AA-118C Fan Cycling Control?

Regularly inspect the control for dust, corrosion, or loose wiring. Clean surrounding components and ensure secure electrical connections. Test the control to verify proper cycling of the condenser fan. Proper maintenance ensures accurate system operation and prevents overheating.

What are common issues with the Johnson Controls P70AA-118C Fan Cycling Control?

  • Condenser fan running continuously or not activating.
  • Delayed response to high-pressure conditions.
  • Control misreading system pressure.
  • Burnt or damaged contacts affecting functionality.

Installation Steps

Step 1: Turn off all power to the HVAC or condenser unit.

Step 2: Locate the existing fan cycling control and remove it from the mounting bracket.

Step 3: Mount the new securely in the same position.

Step 4: Connect the wiring according to the unit’s schematic, ensuring proper voltage and polarity.

Step 5: Adjust the pressure setting if needed, following the manual.

Step 6: Restore power and test fan operation for correct cycling.