A separate electromechanical high-limit is not required in a system that uses this control to meet Underwriters Laboratories Inc. requirements for oil-fired boiler assemblies, UL 726. On the L7224 models, the High Limit, Low Limit, Low Limit Differential, and Anti Short-Cycle time can be adjusted to the setting recommended by the boiler OEM. On the L7248 models, the High Limit, and Anti Short- Cycle time are also adjustable, see “Adjusting Settings”. The overall range of the High Limit is from 130° F to 240° F (54° C to 116° C). Select devices may have different ranges. Some models have limited ranges on the High Limit setpoint; this limited range is listed on the device label.
Some models also have a Low Limit and Low Limit Differential adjustment. The range of the Low Limit is from 110° F to 220° F (43° C to 104° C). Select devices may have different ranges. The L7224A and L7248 are designed for use with 24 Vac electronic and electromechanical thermostats or EnviraCOM enabled thermostats, and have screw-type terminals for easy field connection.
Features:
- Application: Oil Aquastat Controller with Outdoor Reset Module
- Operating Range, Low Limit (F): 110 F to 220 F
- Operating Range, Low Limit (C): 43 C to 104 C
- Operating Range, High Limit (F): 130 F to 240 F
- Operating Range, High Limit (C): 54 C to 116 C
- Differential Temperature (F) – High limit : 5-20 F adj.; low limit: 10-25 F adj.
Specifications:
- Electrical Ratings (burner AFL): 7.4 A @ 120 Vac
- Electrical Ratings (burner ALR): 44.4 A inrush
- Electrical Ratings (circulator AFL): 7.4 A @ 120 Vac
- Electrical Ratings (circulator ALR): 44.4 A inrush
- Voltage: 120 Vac
- Frequency: 60 Hz
- Maximum Power Consumption: 2000 VA
- Dimensions (in.): 7 1/8 in. high x 4 1/4 in. wide x 2 5/8 in. deep
- Dimensions (mm): 181 mm high x 109 mm wide x 67 mm deep
- Mounting: Well mount, horizontal or vertical position, or flush mounted remote from the well.
- Operating Humidity Range (% RH): 0 to 95% RH, non-condensing
- Maximum Ambient Temperature (F): 150 F
- Maximum Ambient Temperature (C): 66 C
- Minimum Ambient Temperature (F): -30 F
- Minimum Ambient Temperature (C): -9 C
- Approvals, Underwriters Laboratories Inc: Recognized
- Includes: W8735S1000
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