Overview
Controls high limit and fan motors in forced air heating systems.
Features
- Three wiring terminal options available for easy installation.
- Push-in receptacles for stripped wire.
- Female receptacles for 1/4 inch male flag connectors.
- Auxiliary screw terminals.
- Field adjustable fan and high limit settings.
- L4064B,W, and R models have a manual fan switch that overrides the fan control to keep the fan running continuously.
- TRADELINE models with mounting adapters for easy installation and strain relief bushings to protect wiring from field abuse..
Product Specifications
- Application
- Forced warm air heating systems
- Dimensions (in.)
- 4 9/32 in. high x 3 in. wide x 1 19/32 in. deep excluding element
- Dimensions (mm)
- 109 mm high x 76 mm wide x 40 mm deep excluding element
- Comments
- Turns fan on and off according to plenum temperature. With helical bimetal sensing element. High limit stop set at 250F (121 C). Small Case. With manual fan-auto switch.
- Item Type
- Product
- Mounting
- Surface mounting or bracket (rigid or swivel)
- Electrical Ratings
- Fan- (AFL)-- 14 A @ 120 Vac: 7 A @ 240 Vac; Fan- (ALR)-- 84 A @ 120 Vac: 42 A @ 240 Vac; Limit- (AFL)-- 8 A @ 120 Vac: 4 A @ 240 Vac; Limit- (ALR) 48 A @ 120 Vac: 24 A @ 240 Vac
- Approvals, Underwriters Laboratories Inc.
- Listed File MP466, Guide MBPR
- Approvals, Canadian Standards Association
- Certified: File No. LR1622
- Tradeline Value
- Tradeline
- Temperature Ratings (C)
- Maximum Ambient-- At switch: 88 C: At element: 121 C above limit setting; High Limit-- 66 C to 177 C; Fan-on-- 38 C to 152 C; Fan-off-- 27 C to 143 C
- Temperature Ratings (F)
- Maximum Ambient-- At switch: 190 F: At element: 250 F above limit setting; High Limit-- 150 F to 350 F; Fan-on-- 100 F to 305 F; Fan-off-- 80 F to 290 F; High Limit Stop-- 250 F; Fan-on Stop-- 125 F; Fan-off Stop-- 100 F
- Operating Temperature Range (F)
- -40 F to +190 F
- Operating Temperature Range (C)
- -40 C to +88 C
- Differential Temperature (F)
- High limit 25 F
- Differential Temperature (C)
- High limit 14 C
- Switching Action
- Fan switch makes and high limit switch breaks on temperature rise.
- Element Insertion Length (in.)
- 11 1/2 in.
- Element Insertion Length (mm)
- 292 mm
- Pilot Duty Ratings
- 0.25 A @ 0.25 to 12 Vdc; 2 A @ 24 Vac
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