Boiler Reset Control; Item Reset Control; Type Microprocessor PI Control, Two Stage; Applicable Standard CSA; Overall Dimensions 2-7/8" Width x 7/8" Depth x 4-3/4" Height; Current Rating 5 Amp; Input Supply Rating 3 VA at 24 Volt AC; Inclusions/Features Adjustable Interstage Delay Setting, Boiler Staging Using Proportional, Integral and Derivative (PID) Logic, Optional Boiler Rotation, a Domestic Hot Water Demand Output; Application Indoor, Boiler; Relay Detail 24 Volt AC 5 Amp, Pilot Duty 240 VA; Boiler Temperature 35 to 150 Deg F