Utica Boilers DXL717503240303 Hot Water Boiler 175 Mbh

Product Description

The UTICA BOILERS DXL717503240303 is a gas-fired cast iron hot water boiler rated at 175 MBH input capacity with mid-efficiency atmospheric combustion. It is designed for residential and light commercial hydronic heating systems and is installed by licensed plumbers and HVAC technicians. The boiler ships as a complete, factory-assembled unit with burners, gas valve, manifold, and circulator pump pre-installed and wired. Key performance features include an electronic ignition system with intermittent pilot control and a motorized vent damper for improved energy efficiency during standby cycles.

This boiler is suited for replacement and new-installation hydronic heating applications where chimney venting is available. The low-profile integral draft diverter reduces installation height compared to models with external diverter hoods, making it a practical fit in tight mechanical rooms. The factory-installed 3/4-inch circulator pump means the unit is ready for connection to existing distribution piping without sourcing a separate pump. It is appropriate for residential forced hot water systems requiring atmospheric-combustion, chimney-vented equipment.

Key Features

• Proven cast iron heat exchanger with dry-leg end sections for long service life
• Pull-out burner drawer and removable burner tube tray allow fast field service access
• Low-profile integral draft diverter reduces installation height by up to 30 percent versus external diverter hood designs
• Internal Hydrolevel operating control adjusts water temperature based on system demand
• Built-in Low Water Cutoff (LWCO) protects against potentially dangerous low-water conditions
• Flame roll-out safety shut-off and manual reset plus blocked vent safety shut-off included
• Temperature LED display with dial-type settings and diagnostic indicator lights
• 20-year non-prorated limited warranty on heat exchanger

Compatibility

Designed as an OEM-style replacement or new-installation unit for residential and light commercial chimney-vented hydronic heating systems requiring a 175 MBH atmospheric gas-fired hot water boiler.

Installation Notes

Installation must be performed by a licensed plumber or HVAC technician in accordance with local codes, IFGC requirements, and the manufacturer installation manual. Shut off gas supply and electrical power before servicing or making connections. The unit requires a properly sized chimney vent; verify draft and venting conditions before startup. The ASME relief valve and drain valve are factory-supplied and must be piped to a safe discharge location per applicable codes.

Technical Specifications

• Boiler Type: Hot Water Boiler
• Input Capacity: 175 MBH
• Efficiency: Mid-Efficiency (84 percent AFUE)
• Heat Exchanger Material: Cast Iron
• Combustion Type: Atmospheric
• Venting: Chimney Vent with Integral Draft Diverter
• Ignition: Electronic Intermittent Pilot with Continuous Retry 100 Percent Shut-Off
• Gas Valve: Automatic Redundant Combination Gas Valve
• Control Voltage: 24 volts
• Circulator Pump: 3/4 inch, factory installed
• Safety Controls: Built-in LWCO, Flame Roll-Out Shut-Off with Manual Reset, Blocked Vent Shut-Off
• Gauges: Combination Temperature/Pressure Gauge
• Relief Valve: ASME Relief Valve included
• Drain Valve: 3/4 inch included
• Warranty: 20-Year Non-Prorated Limited

Standard Information

• Brand: UTICA BOILERS
• Manufacturer Part Number: DXL717503240303