High Limit Protection, Low Limit & Circulator Triple Aquastat Relay, High = 10-Degree(F), Low Limit = 10-25-Degree Adj Differential, L8124A1007

Immersion-type controllers that combine high limit protection with low limit and circulator control in forced hydronic heating systems, including domestic hot water service.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). Product Specifications Description :High Limit Protection, Low Limit and Circulation Control Triple Aquastat Relay with High limit : 10 F fixed low limit: 10-25 F adj. Differential Application : High Limit Protection, Low Limit and Circulation Control Operating Range, Low Limit (F) : 110 F to 220 F adj. Operating Range, Low Limit (C) : 43 C to 104 C adj. Operating Range, High Limit (F) : 130 F to 240 F adj. Operating Range, High Limit (C) : 54 C to 116 C adj. Differential Temperature (F) : High limit : 10 F fixed; low limit: 10-25 F adj. Maximum Operating Pressure (psi) : 200 psi on outside of immersion well, 100 psi on capsule if inserted directly. Maximum Operating Pressure (kPa) : 1378 kPa on outside of immersion well, 690 kPa on capsule if inserted directly. Electrical Ratings (burner AFL) : 7.4 A @ 120 Vac Electrical Ratings (burner AFL) : 3.7 A @ 240 Vac Electrical Ratings (burner ALR) : 44.4 A @ 120 Vac Electrical Ratings (burner ALR) : 22.2 A @ 240 Vac Electrical Ratings (circulator AFL) : 7.4 A @ 120 Vac Electrical Ratings (circulator AFL) : 3.7 A @ 240 Vac Electrical Ratings (circulator ALR) : 44.4 A @ 120 Vac Electrical Ratings (circulator ALR) : 22.2 A @ 240 Vac Voltage : 120 Vac Dimensions (in.) : 6 1/8 in. high x 4 3/8 in. wide x 3 1/16 in. deep Dimensions (mm) : 156 mm high x 111 mm wide x 78 mm deep Insulation Depth (in.) : 1 1/2 in. Insulation Depth (mm) : 38 mm Mounting : Vertical Mount 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. Approvals, Underwriters Laboratories Inc : UL Listed (models with well): File No. MP466, Guide No. MBPR UL Component Recognized (models without well): File No. MP466, Guide No. MBPR2 Approvals, Canadian Standards