GWA Gas-Fired Water Boiler
GWI Gas-Fired Water Boiler
GWS Gas-Fired Water Boiler
GSA Gas-Fired Steam Boiler
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 GWA Gas-Fired Water Boiler
52,000 to 245,000 Btuh Input
Natural or Propane
Dimensions and Specifications
In PDF format:
User Information
Literature
Manual
Control Supplement |
Construction
• Atmospheric (chimney) venting
• Factory Packaged
• Factory Tested
• Easy service
+ One-piece access door
+ All controls in easy reach
• High efficiency
+ Flue baffles
+ Stainless steel burners
+ Automatic vent damper
• Cast iron sections
• Insulated heavy-gauge steel jacket
• Limited lifetime warranty
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Equipment
• Cast iron sections with built-in air separator
• Vertical draft hood
• Electrical junction box
• 24-VAC combination gas valve
• Combination relay receptacle and 40VA
transformer and plug-in circulator relay
• Taco 007 circulator
• High temperature limit control
• 30 PSIG ASME relief valve
• Combination pressure/temperature gauge
Standing Pilot Models
• Constant-burning pilot system, thermally
supervised
Intermittent Pilot Models
• Spark-ignited (intermittent) pilot system
• Electronic ignition/flame supervisory control
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 GWI Gas-Fired Water Boiler
47,500 to 190,000 Btuh Input
Natural or Propane
Dimensions and Specifications
In PDF format:
User Information
Literature
Manual
|
Construction
• Induced-draft combustion system allows
sidewall or chimney venting
• Factory Packaged
• Compact Design
• Factory Tested
• Easy to service
+ One-piece access door
+ All controls in easy reach
+ Color-coded wiring
• High Efficiency
+ AFUEs to 83.3%
+ Spark-ignited pilot with electronic control
• Cast iron sections with built-in air separator
• Insulated heavy-gauge steel jacket
• Limited lifetime warranty |
Equipment
• Insulated extended steel jacket
• Induced-draft blower assembly
• Air Pressure switch
• Stainless steel burners
• Electrical junction box
• 24-VAC combination gas valve
• Combination relay receptacle and 40VA
transformer and plug-in circulator relay
• Taco 007 circulator
• High temperature limit control
• 30 PSIG ASME relief valve
• Combination pressure/temperature gauge
• Spark-ignited (intermittent) pilot system
• Electronic ignition/flame supervisory
control
|
 GWS Gas-Fired Water Boiler
63,000 to 158,000 Btuh Input
Natural or Propane
Dimensions and Specifications
In PDF format:
User Information
Literature
Manual
Venting |
Construction
• Sealed combustion option allows
use of outside combustion air
• Factory Packaged
• Compact Design
• Factory Tested
• Easy to service
+ One-piece access door
+ Plug-in wiring
+ Control module with diagnostic lights
• High Efficiency
+AFUEs to 85.3%
+Spark-ignited pilot with electronic control
• Cast iron sections with built-in air separator
• Insulated heavy-gauge steel jacket
• Limited lifetime warranty |
Equipment
• Insulated extended steel jacket
• Induced-draft blower assembly
• Air Pressure switch
• Stainless steel burners
• Electrical junction box
• 24-VAC combination gas valve
• 40VA control transformer
• Plug-in wiring
• Taco 007 circulator
• High temperature limit control
• 30 PSIG ASME relief valve
• Combination pressure/temperature gauge
• Spark-ignited (intermittent) pilot system
• Electronic ignition/flame supervisory
control
|
 GSA Gas-Fired Steam Boiler
75,000 to 250,000 Btuh Input
Natural or Propane
In PDF format:
User Information
Manual
|
Construction
• Atmospheric (chimney) venting
• Factory Packaged
• Factory Tested
• Easy service
+ One-piece access door
+ All controls in easy reach
• High efficiency
+ Generous heating surface
+ Automatic vent damper
• Cast iron sections
• Rugged construction for long life
+ Integral cast iron legs
+ Integral draft diverter
+ Insulated heavy-gauge steel jacket
+ Heavy-gauge aluminized steel flue collector
• 10-Year warranty on boiler sections
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Equipment
• Factory assembled cast iron sections
• 24-VAC combination gas valve
• Gauge glass and guard assembly
• Pressure gauge and siphon assembly
• Pressure limit control
• Probe low water cutoff
• High temperature limit control
• Automatic vent damper
• 15 PSIG ASME relief valve
• Constant-burning pilot system,
thermally-supervised
• Drain valve |
