Aci A/FLS-50-A Freeze Stat 50 feet Capillary

Product Description

The ACI A/FLS-50-A is a freeze stat with a 50' capillary and automatic reset, featuring 4 wires and 2 circuits with simultaneously switching contacts. Designed for HVAC equipment, it provides low-temperature cutout protection to prevent cooling coils from freezing. It responds to the lowest temperature sensed along a section of the sensing element.

• Protects heating and cooling coils
• Features a low temperature limit switch for temperature stratification applications
• Available with automatic reset

Product Highlights

The ACI A/FLS-50-A freeze stat protects coils from freezing with its low-temperature cutout and automatic reset.

Product Information

Standard Information

• Brand: ACI
• Manufacturer Part Number: A/FLS-50-A
• Country of Origin: United States

Technical Specifications

• Thermostat Type: Self-contained, electromechanical
• Sensing Element: Vapor Pressure
• Sensing Media: Temperature in air
• Adjustable Trip Point Range: 15°F to 55°F (-9°C to 13°C); Factory set with Stop at 35°F(1.7°C)
• Reset Options: Model Dependent: Manual or Automatic
• Approximate Switching Differential: Auto Reset only: Approximately 5°F (2.8°C), Non-adjustable
• Contact Form: 4 Wires, 2 Circuits (Two simultaneously switching contacts (Circuits))
• Contact Type: Line to M2 (Main): Open on Temperature Drop Line to M1 (Auxiliary/Alarm): Close on Temperature Drop
• Wiring Connections: Screw Terminals; Copper wire only rated to 90ºC (194ºF) minimum
• Sensing Response: To lowest temperature sensed along any 14 to 16” (35.6 to 40.6 cm) length of sensing element
• Sensing Capillary Material: Copper
• Sensing Capillary Length: 50'
• Sensing Capillary Diameter: 0.125” (3.18 mm)
• Enclosure Rating: NEMA 1 (IP10)
• Enclosure Material: Steel, galvanized
• Enclosure Color: Black | Baked Enamel
• Conduit Knockouts: ½” conduit knockout
• Operating Temperature Range: 0 to 140°F (-18 to 60°C)
• Storage Temperature Range: -40 to 158°F (-40 to 70°C)
• Sensing Capillary Overload Temperature: 400°F (204.4°C) maximum
• Operating RH Range: 0 to 95% RH, non-condensing
• Product Weight: A/FLS-20-x: 2.31 lbs. (1.046 kg)
• Product Dimensions: A/FLS-50-x: 10.125” (25.72 cm) x 3.375” (16.19 cm) x 5.500” (13.97 cm)
• Agency Approvals: UL File # SA516 UL 873 | CSA File # LR948 C22.2 No. 24-199 | C-Tick # ACN 002 968 103
• RoHS Compliant: RoHS Compliant
• Stages: Single
• System Switching: No
• Fan Switching: No
• Type: Low Limit
• Differential: 1.8F
• Controls Outputs: 2 Sets SPDT Contacts
• Output: A/FS-1, -3, -5: one SPDT Form 1C Relay
• Contact Rating: 250 VAC, 15 (8) A
• Setpoint Range: 14° to 54°F (-10° to 12°C) field adjustable
• Setpoint Differential: 1.8°F (1.0°C), fixed for auto reset
• Setpoint Safety Lock: 35.6°F (2.0°C) factory set; field adjustable
• Housing Rating: NEMA 1 IP40
• Operating Humidity: 0 to 95%, non-condensing
• Dimensions: 3.4" H x 4.25" W x 2.1" D (8.6 x 10.8 x 5.3 cm)
• Switch: (1)DPDT
• Reset Functionality: Manual Reset
• Manufacturer: ACI
• Component: Freeze Stat
• Brand: ACI
• Model: 145360 A/FLS-50-A
• MPN: 145360 A/FLS-50-A
• Country of Origin: United States