Condensing Gas Boiler; Type Hot Water; Supply Connection 1-1/4 Inch Threaded; Return Connection 1-1/4 Inch Threaded; Gas Type Natural/Propane; Gas Connection 3/4 Inch Threaded; AGA Input Rating 43.6 to 240 MBH; DOE Heating Capacity 222 MBH; Net IBR Rating 193 MBH; AFUE Rating 95 Percent; Air Inlet Connection 3 Inch; Boiler Dimensions 19-3/4 Inch Width x 17-5/16 Inch Depth x 36-9/16 Inch Height; Boiler Material Stainless Steel; Water Content 4.5 Gallon; Ignition Type Direct Spark; Burner Type Stainless Steel; Venting Type Automatic; Vent Size 3 Inch; Relief Valve Details 3/4 Inch NPSC, 30 PSI ASME Relief Valve Supplied; Mounting Type Wall; Warranty 10 Year Limited (Heat Exchanger); Options Warm Weather Shutdown, Freeze Protection; Inclusions/Features 6 Navigation Button, Built-In Mixing Valve Control, Variable Speed Blower, Integrated Pressure and Temperature Gauge, Outdoor Temperature Sensor, Alarm and Flame Status Contact; Applicable Standard ANSI Z21.13, AHRI, ASME H, ETL (Canada and US), CSA 4.9; Turndown Ratio 5.5:1
Graphical display with 6 navigation buttons Ez setup allows quick and easy boiler settings adjustment Presets allow quick configuration of 4 circulator outputs Each circulator output is fully configurable for custom applications Outdoor temperature reset to maximize efficiency Accepts two space heating call inputs with independent outdoor reset curves Simultaneously heat dual temperature heating systems with built-in mixing valve control Domestic hot water priority with optional time-out Integrated cascade control for up to 6 prestige boilers 0-10 volt DC modulation input Modbus building management system (bms) interface, lonworks and is and bacnet and is interface optional Adjustable warm weather shutdown Adjustable boiler freeze protection Logging function records sensor readings for system optimization and troubleshooting Describes lockouts in plain english and suggests solutions while storing last 8 errors Energy Star rated