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Emerson Flow Control (Alco) 097998 36" Pressure Switch 145-623 PSI PSC-B6S

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Special Price $113.00 Regular Price $129.95
In stock
SKU
097998
The Emerson Flow Control (Alco) 097998 36” Pressure switch is suitable for complex HVAC systems. This switch works as a safety relief switch that can operate at pressures ranging from 145 PSI to 623 PSI. It measures system pressure and if the pressure goes higher than the set limit it turns on a switch to stop the equipment. This helps in avoiding the effects of overpressure conditions and safeguarding parts such as compressors, pumps, heat exchangers in chillers, boilers as well as large air conditioning systems. Advantages are reduction of repair and time losses, the proper functioning of systems, and increasing safety.
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Emerson Air Conditioner Parts, Emerson Heat Pump Parts,
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Specifications

  • Type: Pressure Switch
  • Size: 36"
  • Pressure Range: 145-623 PSI
  • Model: PSC-B6S
Manufacturer Name: Emerson Flow Control (Alco)
Product Number: 097998
OEM Part Number: 097998
Product Description: Psc-B6s # Switch 145-623# 36"
Weight:0.59lbs/267.62g

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Product Questions (2)
Customer Questions
What maintenance is required for the Emerson Flow Control (Alco) 097998 Pressure Switch?

Regularly inspect the pressure switch for secure connections, signs of wear, and physical damage. Verify that pressure sensing lines remain unobstructed and free from leaks. Keep the surrounding area clean to prevent contaminants from affecting operation. Always disconnect power and follow equipment safety procedures before performing inspections or service.

What are common issues with the Emerson Flow Control (Alco) 097998 Pressure Switch?

  • Drifting setpoint or loss of calibration accuracy.
  • Electrical contact wear, arcing, or sticking during operation.
  • Pressure port clogging or leakage causing inaccurate sensing.
  • Erratic switching due to vibration or pressure spikes.
  • Loose or faulty wiring connections leading to intermittent response.

Installation Steps

Step 1: Shut off power and fully depressurize system; wear PPE to avoid high-pressure release.

Step 2: Mount switch securely on designated port using proper thread sealant.

Step 3: Connect pressure line and ensure leak-free fitting.

Step 4: Wire electrical terminals per schematic diagram.

Step 5: Set operating range and check differential adjustment per system specs.

Step 6: Restore pressure slowly, test the cut-in/cut-out operation and check for leaks safely.