Bosch Appliances GWH 2700 ES NG, GWH 2700 ES LP, ESVVT manual Specifications Technical data

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Appliance details

2.2Specifications (Technical data)

Approved in US/Canada

Capacity

Maximum flow rate: 7.15 GPM (27 l/min) at a 45°F (25°C) rise.

Maximum output

160,500 Btu/h (47.0 kW)

Maximum input

199,000 Btu/h (58.3 kW)

Efficiency in %

Thermal efficiency > 82%

Min. Input

19,900 Btu/h (5.8 kW)

Temperature Control

Selection range: 100°F (38°C) - 140°F (60°C)

Default temperature: 122°F (50°C)

Stability: +/- 2°F (+/- 1°C)

Gas Requirement

Gas connection (inches) - ¾”

Inlet gas pressure under operation (with a high hot water flow rate)*

Propane: 8” - 13” water column

Natural Gas: 3.5” - 10.5” water column.

*To measure gas pressure, see Measuring Gas Pressure, chapter 3.12.

Water

Hot water connection (inches) - ¾”

Cold water connection (inches) - ¾”

Water valve material: Polymer (PPS) (Polypropylene Sulfid)

Minimum water flow: 0.65 gallon/minute (2,5 l/m).

Note: Activation varies with inlet water temperatures from 0.65 - 1.6 gallon/minute.

Minimum recommended water pressure: 30 PSI (2.07 bar)

Minimum recommended well pressure: 40 PSI (2.75 bar), see chapter 3.9.

Connections:

– Bottom of heater

Combustion

NOx 40 Ng/J (Nanograms of NOx (calculated as NO2) per Joule of heat output).

CO 250 ppm (measured)

CO2 level set from factory, see chapter 6.4.

Dimensions

Depth (in): 11¼” (286 mm)

Width (in): 17 7/8” (452 mm)

Height (in): 30½” (775 mm)

Weight: 67 pounds (30,5 kg).

Gas types

Natural Gas. LP Gas.

Converting the gas type can only be done by a certified gas technician with a calibrated CO2 analyzer.

Call Bosch Water Heating through Bosch thermotechnology corp. for conversion instructions.

Voltage

120 V AC (60 Hz) nominal

Amperage

Idle - 40 mA

Operation - 2.5 A

Noise

45 - 65 db (A)

Safety devices

Flame failure device (ionization flame rod sensor)

Pressure relief valve (supplied with heater)

Over heat prevention (temperature limiter)

Inlet temperature sensor

Outlet temperature sensor

Backflow temperature sensor.

Water protection

IP X4 (protection against water drops)

If appliance is installed at elevations above

i2000ft, refer to section 3.3.6 Fan speed adjustment.

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Contents What to do if you smell gas Intended for variable flow applicationsIndex For your safety Appliance details FeaturesSpecifications Technical data GWH 2700 ES is not approved or designed for To remove combustion cover service onlyUnpacking the heater Venting General rules to follow for safe operationDimensions Dimensions and Minimum installation clearancesTools required for installation Installation instructionsIntroduction VentingFittings or Piping Equivalent Feet Installation instructions Horizontal venting systems onlyVenting Specifications Twin pipe termination clearances Installation instructions Condensate drain requirementsMinimum combustion air and exhaust pipe length Maximum combustion air and exhaust pipe lengthCanadian installations1 Installations2 Canadian installations1 Horizontal twin pipe penetration Vent connections Vertical venting installation twin pipe penetra- tionVenting Flex ProTech Heat Fab Installation instructions Condensate drain installationExhaust Total equivalent vent length calculationIntake ExampleLevel Vent length1 Speed P2 Adjusting minimum power fan speed P2Adjusting maximum power fan speed P1 Installation instructions Twin pipe and Concentric pipe Combustion air requirementsMounting installation Proper location for installing your heaterHeater placement and clearances Gas piping & connections GAS Line Sizing For Natural GAS Water quality Water connectionsGWH Domestic hot water recirculationMeasuring gas pressure Connecting manometerStatic Pressure Test Operating Pressure TestPosition of the fuses in control unit Electrical power supplyElectrical connections LCD Display functions Operation instructionsTemperature selection For your safety read before operating your water heaterPower Reset button Use of optional remote control Accessory part no. TSTAT2Operation Program buttonAnnual maintenance table Every year Maintenance and serviceAnnual maintenance Winterizing for seasonal useMineral scale build-up Adjusting CO2 carbon dioxideDescaling using a pump Adjusting CO2 Measuring CO2 combustion cover must be installedReturning to Service Once Gas Pressure is adequate% 3.0 % 60 ppm Final ReadingsComment Program Description Factory DefaultProgram values Diagnostic menu Control board diagnosticsTroubleshooting TroubleshootingWater is too hot Water is not hot enoughNoisy burner/heater during operation Hot water temperature fluctuates at tapLow water flow/pressure Lack of adequate gas pressure. Inadequate gas Error code diagnostics Problem solvingVenting may cause this failure Problem solving Display Cause SolutionOver-temperature detected by No flame ionization detected with Electrical diagram Electrical diagramSensor resistance charts Back Flow characteristics Functional scheme GWH 2700 ES Functional schemeInterior components Interior components diagram and parts listInterior components diagram and parts list Appliance overview Description Reference Components diagramGroup Interior components diagram and parts list Group 1211 6720608158-73.1AL Interior components diagram and parts list Group 708 300 Protecting the environment Protecting the environmentPacking ComponentsLimited Warranty Limited Warranty 6720608542