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Bosch Aquastar 2700ES Tankless Water Heater Techs & Specs
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Bosch AquaStar 2700ES - Applications and Sizing
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BTU Input
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NG: 19,000 to 199,000
LP: 19,000 to 199,000
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Energy Factor
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NG: .82
LP: .82
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Thermal Efficiency
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NG: 82%
LP: 82%
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Ignition
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Electronic (120V plugs in)
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Minimum Flow Rate (gpm)
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0.65
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Flow Rates (gpm)
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7.15 @ 45°F rise
5.9 @ 55°F rise
5.0 @ 65°F rise
4.2 @ 77°F rise
3.6 @ 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 7/8" 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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Horizontal Vent Kit AQ3 (Without the Flexible intake Pipe)
Outdoor Kit (AQOK)
Remote Thermostat Control
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Life Expectancy
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20+ years
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Model AquaStar Bosch 2700ES - 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 Sealed Cat III
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Combustion Air Pipe Size
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3-inch PVC Galvanized or another rigid pipe
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Vent Options
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Horizontal or Vertical, Direct Vent Room Sealed Combustion
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Exhaust 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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What does Direct Vent or Room sealed mean? The 2700ES can be installed in a small space
with the ability to take in air from the outside via a 3 inch intake vent.
The Bosch AquaStar 2700ES can be vented vertically or horizontally to the
outside. The 2700ES requires a dedicated 3" stainless steel single wall
vent pipe. Other vent types will void the warranty and present a health
hazard. The 2400E also requires an electrical connection for the electronic
ignition.
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Model AquaStar Bosch 2700ES - 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 2700ES Water Heater download an
installation PDF manual - Click Here
