Bosch Appliances ESVVT, GWH 2700 ES LP, GWH 2700 ES NG manual Installation instructions

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Installation instructions

Attention residents of the Commonwealth of Massachusetts:

In the Commonwealth of Massachusetts the following regulation went into effect on 12/30/2005:

(a)For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:

1.INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the floor level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for the installation of hard wired carbon monoxide detectors.

a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an at tic, the hard wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.

b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of thirty (30) days to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed.

2.APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

3.SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one half (1/2) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".

4.INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and

signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.

(b)EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:

1.The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the most current edition of NFPA 54 as adopted by the Board; and

2.Product approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelling, building or structure used in whole or in part for residential purposes.

(c)MANUFACTURERS REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM REQUIRED. When the manufacturer of Product Approved side wall horizontally mounted gas equipment provides a venting system design or venting system components with the equipment, the instructions provided by the manufacturer for the installation of the equipment and the venting shall include:

1.Detailed instructions for the installation of the venting system or the venting system components: and

2.A complete parts list for the venting system design or venting system.

(d)MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a product approved side wall horizontally vented gas fueled equipment does not provide the parts for the venting of flue gases, but identifies "special venting systems," the following requirements shall be satisfied by the manufacturer:

1.The referenced "special venting system" instructions shall be included with the appliance or equipment installation instructions; and

2.The "special venting systems" shall be product approved by the Board, and the instructions for that system shall include a parts list and detailed installation instructions.

(e)A copy of all installation instructions for all products approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation.

6 720 608 542

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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 Unpacking the heater To remove combustion cover service onlyGWH 2700 ES is not approved or designed for Venting General rules to follow for safe operationDimensions Dimensions and Minimum installation clearancesVenting Installation instructionsTools required for installation IntroductionVenting Specifications Installation instructions Horizontal venting systems onlyFittings or Piping Equivalent Feet Maximum combustion air and exhaust pipe length Installation instructions Condensate drain requirementsTwin pipe termination clearances Minimum 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 installationExample Total equivalent vent length calculationExhaust IntakeAdjusting maximum power fan speed P1 Adjusting minimum power fan speed P2Level Vent length1 Speed P2 Installation instructions Twin pipe and Concentric pipe Combustion air requirementsHeater placement and clearances Proper location for installing your heaterMounting installation Gas piping & connections GAS Line Sizing For Natural GAS Water quality Water connectionsGWH Domestic hot water recirculationOperating Pressure Test Connecting manometerMeasuring gas pressure Static Pressure TestElectrical connections Electrical power supplyPosition of the fuses in control unit LCD Display functions Operation instructionsPower For your safety read before operating your water heaterTemperature selection Program button Use of optional remote control Accessory part no. TSTAT2Reset button OperationWinterizing for seasonal use Maintenance and serviceAnnual maintenance table Every year Annual maintenanceDescaling using a pump Adjusting CO2 carbon dioxideMineral scale build-up Once Gas Pressure is adequate Measuring CO2 combustion cover must be installedAdjusting CO2 Returning to Service% 3.0 % 60 ppm Final ReadingsProgram values Program Description Factory DefaultComment Diagnostic menu Control board diagnosticsWater is not hot enough TroubleshootingTroubleshooting Water is too hotLow water flow/pressure Hot water temperature fluctuates at tapNoisy burner/heater during operation 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 diagram and parts list Interior components diagram and parts listInterior components Appliance overview Group Components diagramDescription Reference Interior components diagram and parts list Group 1211 6720608158-73.1AL Interior components diagram and parts list Group 708 300 Components Protecting the environmentProtecting the environment PackingLimited Warranty Limited Warranty 6720608542