Features
Immersion-type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems.
Provide multizone control by using a separate circulator and R845 Relay for each zone.
Include diaphragm powerhead and Micro Switch assembly that respond to temperature changes in boiler water.
Mount directly to boiler.
Select models include large transformers and extra terminals for supplying power to low voltage zone valves.
Require 24 Vac thermostat with heat anticipator set at 0.2 A (plus current draw of gas valve on L8124E).
TRADELINE models include tube of heat conductive compound and range stops.
Product Specifications Back To Top
Description Triple Aquastat Relay with High limit : 10 F fixed; low limit: 10-25 F adj. Differential
Application Triple Aquastat Relay with High limit
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 : 10 F fixed; low limit: 10-25 F adj.
Switching Action SPST: High & Low Limit
Maximum Safe Operating Pressure (psi) 200 psi on outside of immersion well, 100 psi on capsule if inserted directly.
Maximum Safe Operating Pressure (kPa) 1378 kPa on outside of immersion well, 690 kPa on capsule if inserted directly.
Electrical Ratings (burner AFL) Line Voltage: 7.4 A @ 120 Vac; 3.7 A @ 240 Vac
Electrical Ratings (burner ALR) Line Voltage: 44.4 A @ 120 Vac; 22.7 A @ 240 Vac
Electrical Ratings (circulator AFL) 3.7 A @ 240 Vac
Electrical Ratings (circulator AFL) 7.4 A @ 120 Vac
Electrical Ratings (circulator ALR) 22.7 A @ 240 Vac
Electrical Ratings (circulator ALR) 44.4 A @ 120 Vac
Voltage 120 Vac
Frequency 60 Hz
Dimensions (in.) 4 3/8 in. high x 6 1/8 in. wide x 3 1/16 in. deep
Dimensions (mm) 111 mm high x 156 mm wide x 78 mm deep
Mounting Horizontal
Operating Humidity Range (% RH) 0 to 95% RH, non-condensing
Maximum Ambient Temperature (F) 150 F at switches, 265 F at sensing element.
Maximum Ambient Temperature (C) 66 C at switches, 129 C at sensing element.
Minimum Ambient Temperature (F) -30 F
Minimum Ambient Temperature (C) -9 C
Electrical Connections Quick-Connect / Screw
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