Description
The Johnson Controls P66AAB-38 is a precision-engineered Electronic Fan Speed Control designed to maintain optimal system performance by modulating condenser fan motor speed in response to refrigerant head pressure. Featuring a single input sensor and a 60″ capillary, this control continuously monitors system pressure and adjusts fan speed accordingly — helping to stabilize head pressure, improve energy efficiency, and extend equipment life.
Key Features
- Electronic fan speed control for condenser fan applications
- Single input sensor configuration for straightforward installation
- Operating pressure range: 360–450 Psig for high-pressure refrigerant systems
- 60″ capillary length provides flexible sensor placement
- Modulates fan motor speed to maintain stable head pressure
- Helps reduce energy consumption during low-ambient conditions
- Extends compressor and system component life by preventing pressure extremes
Product Specifications
- Brand: Johnson Controls
- SKU / Part Number: P66AAB-38
- Control Type: Electronic Fan Speed Control
- Sensor Input: Single Input Sensor
- Operating Pressure Range: 360–450 Psig
- Capillary Length: 60″
Application
The P66AAB-38 is ideal for commercial refrigeration and air conditioning systems where consistent head pressure control is critical. By automatically varying condenser fan speed in response to measured refrigerant pressure, it ensures reliable operation across a wide range of ambient conditions — making it a trusted solution for HVAC/R technicians and contractors.
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