Resideo L4029E1227/U limit control - fixed 125 °F range, 3 in insert manual reset

Product Description

The RESIDEO L4029E1227/U Limit Control is a single function aquastat designed to open a line or low voltage circuit when air temperature reaches a critical level. This device functions as a fire thermostat within AC and ventilating system ducts, ensuring fan shutdown if air temperature indicates a fire. It provides high limit cutout with manual reset in warm air or air conditioning systems, serving as a secondary high limit for positive burner shutdown on fan failure or reverse airflow.

• Shuts off the fan when air temperature is indicative of fire
• Internal snap-acting switch actuated by a bimetal strip responds rapidly to temperature changes
• Requires manual reset for operation

Product Highlights

Ensures fire safety by rapidly responding to critical air temperatures and requiring manual reset for system control.

Product Information

Standard Information

• Brand: RESIDEO
• Manufacturer Part Number: L4029E1227/U
• Country of Origin: Import

Technical Specifications

• Type: Single Function Aquastat
• Approvals and Standards: UL Listed: File No. MP466, Vol. 8, Guide No. MBPR2; CSA Certified: File No. LR95329-5
• Maximum Ambient Operating Temperature: 190 °F (88 °C)
• High Limit Differential Temperature: 25 °F (14 °C)
• Electrical Ratings (Full Load): Limit: 2 A @ 30 V AC; 10 A @ 120 V AC; 5 A @ 240 V AC
• Electrical Ratings (Locked Rotor): Limit: 60 A @ 120 V AC; 30 A @ 240 V AC
• Pilot Duty Rating: 0.25 A @ 0.25 to 12 V DC
• Switch Action: Normally closed SPST switch opens on temperature rise to the set point; Switch must be manually reset to operate
• Element Insertion Length: 3 in (76 mm)
• Finish: Smooth Gray