- Electronic ignition
- Built-in draft diverter (indoor models) simplifies installation
- Integral pump assures proper water flow (Models 500-1825)
- Automatic gas valve
- Stainless steel burners, with slide-out burner tray for easy maintenance and long life (Models 500-1825)
- High temperature refractory firebox liner to 2000� F for greater efficiency
- Easy-to-service header flanges
- Corrosion-resistant glass-lined or bronze headers
- CSD-1 and other options available. Contact factory for part numbers
Additional Design advantages Include:
- Control system includes automatic temperature control, temperature limit, gas pressure regulator, redundant electric gas valve, water flow sensing, electronic flame safety supervision and manual gas shut-off valve. The standard control system operates on 24 VAC with a 120 VAC power supply. Standard units are intermittent (spark) ignition.
- Working pressure of 160 psi complies with section IV of the ASME Boiler and Pressure Vessel Code. Units are registered with the National Board of Boiler and Pressure Vessel Inspectors
- Pressure relief valve is ASME rated and is selected to provide discharge capacity in excess of unit heating input.
- Combustion chamber is cast refractory with a 2000° F (1093°C) working temperature
- Burners are atmospheric type constructed of AISI alloy 430(models 500-1825) or AISI 439(models 2000-5000) Stainless steel.
- Chassis and jacket parts are of galvanized steel meeting ASTM Standard for G90 coating. Exterior is finished with acrylic paint, thermoset at 325° F(163° C).
- Integral flow control valve on models 2000-5000 accepts flows up to 300 GPM