Diversitech PLP75100 Low Pressure Control Switch

Product Description

The DIVERSITECH PLP75100 is a single-circuit low pressure control switch designed for use in HVAC and refrigeration systems. It monitors refrigerant-side pressure and actuates a single control circuit when pressure drops to an unsafe threshold. When triggered, the switch interrupts operation to protect the compressor and system components from damage caused by low refrigerant pressure, loss of charge, or restricted airflow conditions. Licensed HVAC technicians and refrigeration service pros install this control as part of system safety and protection circuitry.

This pressure control switch is suited for residential and light commercial air conditioning and refrigeration applications where compressor protection against low pressure faults is required. It is wired into the control circuit so that the system shuts down before low-side pressure conditions cause compressor damage. Typical installation scenarios include split-system air conditioners, heat pumps, and commercial refrigeration equipment.

Key Features

• Single-circuit switching action for straightforward control wiring
• Monitors low-side refrigerant pressure to protect compressors from damage
• Interrupts operation automatically when unsafe low pressure is detected
• Suited for air conditioning and refrigeration system safety circuits

Compatibility

Designed as an OEM-style replacement or new-installation low pressure control switch for residential and light commercial HVAC and refrigeration systems requiring single-circuit low pressure protection.

Installation Notes

Installation of refrigerant-side pressure controls must be performed by an EPA Section 608 certified HVAC technician. Before servicing, shut off power to the unit at the disconnect and recover or isolate refrigerant per local and federal regulations. The switch is wired into the low-voltage or line-voltage control circuit depending on system design — verify wiring configuration against the system schematic before making connections. Follow all applicable local mechanical and electrical codes during installation.

Technical Specifications

• Switch Type: Single
• Function: Low Pressure Control
• Application: HVAC and Refrigeration

Standard Information

• Brand: DIVERSITECH
• Manufacturer Part Number: PLP75100