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Bosch Aquastar 2400ES Tankless Water Heater Techs & Specs
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Bosch AquaStar 2400ES - Applications and Sizing
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BTU Input
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NG: 19,900 to 175,000
LP: 19,900 to 175,000
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Energy Factor
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.82
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Thermal Efficiency
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82%
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Ignition
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Electronic (120V plugs in)
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Minimum Flow Rate to Activate
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0.65 GPM
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Flow Rates (gpm)
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6.4 @ 45°F rise
5.3 @ 55°F rise
4.6 @ 65°F rise
3.8 @ 77°F rise
3.2 @ 90°F rise
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Weight
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67 lbs.
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Dimensions
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30 1/2" H by 17.875" W by 11 1/4" D
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Modulating Gas Valve
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Yes
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Optional Accessories
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Outdoor Kit (AQOK)
Remote Thermostat (TSTAT2)
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Life Expectancy
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20+ years
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Model AquaStar Bosch 2400ES - Installation Specifications
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Voltage
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120 VAC
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Exhaust Vent Size
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3-inch Stainless Steel
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Combustion Air Pipe Size
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3-inch PVC / Alum. / Galv.
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Vent Termination
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Horizontal or Vertical
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Min / Max Vent Lengths
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Minimum length: 3 feet
Maximum length: 26 ft. (8m) with one 90 degree elbow.
Less 2.5 ft. for each additional 90 degree elbow (1.25 ft for each 45 degree elbow)
Max 3 90 degree elbows.
May require an Condensate Drain - see Install Manual
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Gas Connection
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3/4 inch Male NPT
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Water Connections
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3/4 inch Male NPT
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Natural Gas Pressure
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Min: 4" WC
Max: 14" WC
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Propane (LP) Gas Pressure
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Min: 9" WC
Max: 14" WC
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Water Pressure
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Min: 30 PSI
Max: 150 PSI
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Model AquaStar Bosch 2400ES - High Altitude Operation
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Propane or Natural Gas
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Altitude 0 - 2,000 ft
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No modification
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Altitude 2,000 ft - 8,000 ft
(For FD Codes higher than 892)
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CO2 adjustment with flue gas analyzer required
see manual supplied from unit for instructions
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For operation at elevations above 2,000 ft (610 m) the equipment
ratings shall be reduced at the rate of 4% for each 1000 feet (305m)
above sea level.
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For more information on the Bosch AquaStar 2400ES Water Heater download an
installation PDF manual - Click Here
