Dwyer DFS2-DA10 Offers

Protect cooling coils from frost damage with the Dwyer DFS2-DA10 Series DFS2 Low Limit Freeze Protection Switch. Designed to detect temperature drops below your fixed safety value, this frost-protection switch relays the signal to your building management system and cuts off the fan. This switch is crafted with a thermostat, a vapor-filled capillary sensing element and an easy-to-install design.

Features

• Helps prevent frost buildup on cooling coils in air-handler systems
• Thermostat and vapor-filled capillary sensing element detect the lowest temperature along any 1' (30.5 cm) section of capillary
• Automatic reset relays signal to the building management system and cuts off the fan
• Detects temperature drops below the fixed safety value
• Safety value can be set as low as 34° F (1° C) using visual indicator and set-point screw
• Joint spring protector at capillary-bellow connection
• Crafted with a galvanized-steel base, an ABS cover and copper capillary material
• Factory set at 39° F (4° C) and safety lock secured
• M20 compression fitting for cable entry
• Terminal wire connection with wire-retaining screws (14 AWG max)
• 2 each NO/NC/Common electrical connections
• 0 to 95% RH, non-condensing humidity limit and 14 to 54deg; F (-10 to 12deg; C) operating temperature
• Capillary overload temperature is 392deg; F (200deg; C) for a maximum of 60 minutes
• 24 to 250 VAC, 15 (8) A electrical rating
• 1.8° F (fixed) deadband
• NEMA 1 (IP40) enclosure rating
• Easy installation and wiring for simple setup