Description
The A.J. Antunes JD-2-BLUE is a precision-engineered, multi-function pressure switch designed for reliable monitoring of air differential, vacuum, and positive pressure in HVAC and light commercial applications. Its auto-reset functionality eliminates the need for manual intervention after a trip event, reducing downtime and service calls.
Key Features
- Sensing range of .07 to 1.7 inches water column (“wc) for accurate low-pressure differential detection
- Single-Pole Double-Throw (SPDT) switching action for versatile normally-open or normally-closed circuit configurations
- 1/8″ NPT port connection for straightforward installation into standard pneumatic or air-side piping
- Automatic reset operation — switch returns to normal position once pressure returns within range, no manual reset required
- Suitable for monitoring air differential, vacuum, and positive pressure conditions
- Compact, durable construction suited for commercial HVAC equipment and controls applications
Typical Applications
- Air handler and furnace pressure proving
- Combustion air and draft proving in heating equipment
- Filter status monitoring via differential pressure
- Fan and blower airflow verification
- Vacuum and low-pressure system monitoring
Specifications
- Model / SKU: JD-2-BLUE
- Brand: A.J. Antunes
- Pressure Range: .07 – 1.7″ w.c.
- Switch Type: SPDT (Single-Pole Double-Throw)
- Port Connection: 1/8″ NPT
- Reset Type: Automatic
- Sensing Media: Air differential, vacuum, and positive pressure
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