2000 Precision Boilers Hot Water Boiler. Model: BF100W4. Rated capacity 3,348,000 Btuh. Maximum working pressure: 160 psi @ 250 °F. Heating surface area: 416 sq. ft. Input: 4,180,000 Btuh. Relief valve capacity: 4,426,110 Btuh. Gordon-Piatt Manual Firing Rate Control, Model: R10.1-G-30, with a Honeywell Burner Control. Blower with a Marathon Electric Motor, 3 hp, 3450 rpm, 208-230/460 V, 8.9-8.4/4.2 amps, 60 Hz, 3 phase. Guarddog Low-Water Cutoff, Model 750. Asco General Control HydRam Industriesotor Gas Valve, 120 V, 60 Hz. Inlets: (1) 4 in. dia. port, (1) 2 in. dia. NPT (male). Outlets: (1) 4 in. dia. hot water outlet. Boiler dimensions: 11 ft. 9 in. L x 6 ft. 8 in. W x 6 ft. 10 in. H. Siemens APOGEE Automation Electric control panel mounted on floor stand with a Square D Company I-Line panelboard. (2) Taco Pumps, Model: VI3006AA, Impeller: 5 in. dia. Baldor Motors, 3 hp, 1725 rpm, 208-230/460 V, 8.5-8.2/4.2 amps. 5 hp, 1725 rpm, 208-230/460 V, 15-13.2/6.6 amps, 60 Hz, 3 phase. Taco Inc. Expansion Tank-100 Gallons. MAWP: 125 PSI @ 240 F. MDMT -20 F @ 125 PSI. Inlet: (1) 1 in. dia. NPT (male), (1) 2 in. dia. NPT (female). Tank dimensions: 28-1/2 in. L x 1 ft. 11 in. W x 6 ft. 11 in. H.(H17)(ACN340).