133-071-304 Weil McLain LGB-7W 81% AFUE Natural Gas Water Boiler With LWCO 780 Input MBH 549 Net Output MBH

• Gas Fired Water Boiler
• Type Water
• Applicable Standard ASME H, AGA, CSA, DOE, AHRI, IBR, UL
• Supply Connection 3"
• Return Connection 3"
• Gas Type Natural
• Gas Connection 1-1/4"
• AGA Input Rating 780 MBH
• DOE Heating Capacity 632 MBH
• Net IBR Rating 549 MBH
• AFUE Rating 81 Percent
• Air Inlet Connection 1"
• Boiler Dimensions 36" Length x 64-1/2" Width x 50-3/8" Height
• Boiler Material Cast Iron
• Water Content 63.9 Gallon
• Ignition Type Intermittent Pilot Spark
• Burner Type Aluminized Steel
• Venting Type Vertical
• Vent Size 12"
• Relief Valve Details 30 PSI ASME Relief Valve
• GPH Recovery 76 GPH
• ASME Code Yes
• Pressure Rating 80 PSI
• Mounting Type Floor Mount
• Warranty 10 Year (Heat Exchanger), 1 Year (Parts)
• Options Manual Main Shut-Off Valve, Diaphragm Gas Valve with Regulator, Manual Leak Checking Valve, Leak Test and Shutoff Cock, Solenoid Valve, CSD-1 Control Panel
• Inclusions/Features Insulated Extended Jacket, Aluminized Steel Controller Hood and Draft Hood, 24/120 Volt Control Transformer, Gas Manifold, Aluminized Steel Base Panel, Insulated Board, Junction Box and Pre-Wired Flexible Conduit, Flame Guardian Panel with Flame, Rectification Electronic Control, Terminal Block, Ignition Control Module, Integral Spark Generator, Electronically Supervised Pilot Burner, Main Flame Sensor Rod, Combination Operating and High Limit Temperature Control, Combination Temperature Pressure Gauge, Air Eliminator End Section, Low Water Cut-Off
• Application Commercial, Apartment and Commercial Building, Schools and Other Institutions, Multiple Boiler, Indirect-Fired Water Heating

Install Instructions
Specification Sheet

Short Draw Rods Permit Faster, Easier Assembly of Boiler Sections; Factory-Assembled Base and Burners and Simplified Piping for Quick and Easy Installation; Compact Design Allows for More Piping and Venting Headroom: The Highest Efficiency Commercial Cast Iron Atmospheric Gas Boiler Available; Built-In Air Separator Diverts Air to the Expansion Tank; Gas Natural Draft Water and Steam Boiler with Cast Iron Sections; 81 Percent Operating Efficiency Saves Energy; Cast Iron Sections for Corrosion Resistant and Long Life; 10 Year Heat Exchanger, 1 Year Parts Warranty