Product Specifications Application High Limit and Circulator Dimensions (in.) 3 7/8 in. high x 4 1/8 in. wide x 2 3/4 in. deep. Temperature Range (F) Maximum--150 F at switches; 265 F at sensing element Mounting Horizontal Electrical Ratings 0.25 A @ 0.25 to 12 Vdc; At Full Load-- 8A @ 120 Vac: 5.1A @ 240 Vac; At Locked Rotor-- 48A @ 120 Vac: 30.6A @ 240 Vac Operating Humidity Range (% RH) 0 to 95% RH, non-condensing Operating Temperature Range (F) High Limit-- 130 F to 240 F; Low Limit-- 110 F to 220 F Differential Temperature (F) High limit : 10 F fixed; low limit: 10-25 F adj. Insulation Depth (in.) 1 1/2 in. Electrical Ratings, Ignition Transformer Load: 360 VA Replaces Honeywell L4018B1013, L4081B1021 and L4081B1047 Operation: High Limit The high limit opens and turns off the burner when the water temperature reaches the setpoint. The high limit automatically resets after the water temperature drops past the setpoint and through the 10°F (6°C) differential. Low Limit and Circulator On a temperature rise, with the adjustable differential at the minimum setting of 10°F (6°C) (also applies to fixed 10°F [6°C] differential models), the burner circuit (R-B) breaks and the circulator circuit (R-W) makes at the control setpoint. On a temperature drop of 10°F (6°C) below the setpoint, the R-B circuit makes and the R-W circuit breaks. At any differential setting greater than 10°F (6°C), the R-B make temperature and R-W break temperature remain the same control setting minus 10°F (6°C). The R-B break and R-W make temperatures are the setpoint temperature plus the difference between the differential setting and 10°F (6°C).

• Replaces Honeywell L4018B1013, L4081B1021 and L4081B1047
• Operating Temperature Range (F) High Limit-- 130 F to 240 F; Low Limit-- 110 F to 220 F
• Differential Temperature (F) High limit : 10 F fixed; low limit: 10-25 F adj.
• Insulation Depth (in.) 1 1/2 in.

Replaces Honeywell L4018B1013, L4081B1021 and L4081B1047Honeywell