Daikin-McQuay 107193101 Stat

The Daikin-McQuay 107193101 Automatic Freeze Stat is a critical low-limit safety control designed to protect hydronic heating coils and cooling coils from catastrophic freeze-up conditions. Featuring a 240-inch vapor tension capillary element, this freeze protection thermostat ensures comprehensive coverage across large coil faces, detecting the coldest spot along any one-foot section of the sensing bulb. Operating as a SPDT low limit controller, it triggers an automatic reset once temperatures rise above the fixed differential, managing fan circuits or damper actuators to mitigate frost risk. This Daikin OEM replacement part is engineered for integration into commercial HVAC air handling units and rooftop systems. Its precise setpoint calibration and robust capillary tube sensor provide reliable HVAC freeze protection in high-demand environments, preventing ruptured tubes and subsequent water damage in mechanical rooms.

• Extensive Sensing Range: The 20-foot capillary length allows for serpentine installation patterns, ensuring total coil surface monitoring.
• Automatic Reset Logic: Eliminates unnecessary manual interventions by restoring circuit continuity once safe operating temperatures are reached.
• High-Voltage Compatibility: Rated for standard control circuits, providing versatile integration with diverse motor starters and building automation systems.
• OEM Precision: Direct replacement for Daikin-McQuay 107193101, ensuring exact fitment and electrical alignment with original equipment specifications.

How do I properly install the 240-inch capillary to prevent false trips?
The capillary should be installed in a horizontal serpentine pattern across the downstream side of the coil, covering areas most susceptible to cold air bypass or stratification.

Can this freeze stat be used in 24V or 120V control loops?
Yes, the SPDT switch is designed to handle common industrial voltages, making it suitable for various HVAC safety circuit configurations.

What is the reaction time for the vapor-charged sensing element?
The vapor tension technology reacts rapidly when any 12-inch segment of the 20ft freeze stat bulb drops below the setpoint, providing immediate logic switching to protect the coil.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.