Description
The ACI 145361 FreezeStat is a professional-grade freeze protection control designed to safeguard air handling units, coils, and ductwork from freeze damage. Equipped with a 50-foot averaging capillary sensing element, this controller detects the lowest temperature along the entire length of the capillary — not just at a single point — providing comprehensive freeze protection across large coil faces and air handling sections.
Key Features
- 50-foot capillary sensing element for wide-area, averaging temperature detection
- Manual reset (M/R) operation — requires deliberate operator action to restore after a freeze event, preventing automatic restart before the cause is addressed
- Dual-circuit (2-circuit) output for simultaneous control of multiple loads, such as shutting down the fan and opening a heating valve in a single trip event
- Responds to the coldest point along the capillary, ensuring no cold spot goes undetected
- Rugged construction suited for commercial and industrial HVAC applications
Application
The ACI 145361 is ideal for installation in air handling units, make-up air units, and fan coil systems where freeze protection is critical. The 50-foot capillary is routed back and forth across the coil face in a serpentine pattern to monitor the entire coil surface. Upon detecting a freeze condition, the manual reset mechanism locks out the system, requiring a technician to inspect and clear the fault before resuming normal operation — a critical safety feature that helps prevent repeated freeze events and costly coil damage.
Why Choose Manual Reset?
Automatic reset freezestats can allow equipment to restart before the root cause of a freeze condition is resolved, potentially leading to repeated freeze events and equipment damage. The manual reset design of the ACI 145361 ensures that a qualified technician evaluates the system before it is returned to service, providing an added layer of protection for your HVAC investment.
Specifications
- Brand: ACI (Automation Components Inc)
- Model / SKU: 145361
- Capillary Length: 50 feet
- Reset Type: Manual Reset (M/R)
- Circuit Configuration: 2-Circuit (dual output)
- Application: Freeze protection for AHUs, coils, and ductwork
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