Boiler Installation; Installer Qualifi Cations; Compliance Requirements; Location - Bosch Singular 4000 Installation Instructions Manual

3 Boiler Installation

3.1 Installer Qualifi cations
A licensed professional must install and inspect the appliance. A
licensed professional is a person who is licensed for the following:
 Connecting gas lines, water lines, valves, electricity
 Vent installation through walls and roofs
 Applicable of local, state, and national codes

3.2 Compliance Requirements

 National electrical code.
 National fuel gas code, ANSI Z223.1/NFPA 54 and/or CSA B149.1,
natural gas and propane installation codes.
 Local, state, provincial, and national codes, laws, regulations, and
ordinances.
 For Canada only: B149.1 installation Code, CSA C22.1 Canadian
Electricity supply enters the building.

3.3 Location

For installation:
Observe the current national and local codes and regulations.
 Observe country-specific requirements.
 Observe installation instructions of the venting system accessories and
their clearances.
When considering a location for installation, the installer, must ensure the
following:
 Access to utilities
 Humidity and contact with water
 Water quality
 Drainage
 Venting and ventilation
 Proximity to fixtures and appliances
 Clearances
 Clean, debris and chemical-free combustion air
 High elevation Installations
Singular Combi Boiler - BTC 439003301 B (2021/07)

3.3.1 Access to Utilities

 Electricity – Close to where the electrical supply enters the building
 Water – Close to where the domestic water supply enters the building
 Gas – Close to where the gas supply enters the building

3.3.2 Humidity and Contact with Water

Avoid places with excessive humidity. The boiler has electric gas ignition
components. If water gets inside the boiler, the ignition system can be damaged.
The boiler must be installed in such a way as to ensure that the gas ignition system
components are protected from water (dripping, spraying, rain, etc.) during
operation and service.

3.3.3 Drainage

A signifi cant amount of condensate is produced during the boiler operation.
Install the boiler near a suitable drain and where damage from a possible leak will
be minimal. Installing the boiler without a drain will void the warranty. For more
information about condensate drainage, refer to "Connecting the Condensate
Drain" on page 19.
The Boiler must be located in an area where leakage of the unit or connections will
not result in damage to the area adjacent to the appliance or to lower fl oors of the
structure. When such locations cannot be found, installation of an adequately-
draining drain pan under the boiler is recommended. When installing the drain pan,
ensure that the installation does not restrict combustion air fl ow.

3.3.4 Venting and Ventilation

Consider venting restrictions caused by windows, doors, air intakes, gas meters,
foliage and other buildings, and select a location that requires minimal venting.
When considering an adequate venting and ventilation, ensure the following:
 Maintain a minimum clearance of 4 feet (1.2 meters) from heating and
cooling vents
 Maintain proper clearances from any openings in the building
 Install the boiler vent termination with a minimum clearance of 12 inches
(300 mm) above an exterior grade or as required by local codes
 Install the exhaust vent in an area that is free from obstructions and does
not allow the exhaust to accumulate
 Do not enclose the vent termination
 Do not install the boiler where moisture from the exhaust may discolor or
damage walls
 Do not install the boiler in bathrooms, bedrooms, or any other occupied
rooms that is normally kept closed or that is not adequately ventilated
For more information about venting, refer to "Installing a Vent" on page 29.
Installation Instructions
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