Navien LCB700-21LC Installation & Operation Manual Download

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18 Installing the Boiler

Adequate Drainage

The boiler produces a significant amount of condensate during
operation. The boiler should be located near a suitable drain and
where damage from a possible leak will be minimal. Installing
the boiler in a location without a drain will void the warranty and
Navien will not be responsible for water damages that occur as a
result. For more information about condensate drainage, refer to
“4.3 Connecting the Condensate Drain Line” on page 25.

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 floors of the structure. When such
locations cannot be found, installation of an adequately drained
drain pan under the boiler is highly recommended. When
installing the drain pan, ensure that the installation does not
restrict combustion air flow.

Adequate Flue and Ventilation

The boiler must be located so that the grilles of the premises are
not obstructed and normal boiler maintenance is possible even
if installed between items of furniture.

Select a location that requires minimal flue. Consider flue
restrictions caused by windows, doors, air intakes, foliage, and
other buildings. For more information about flue system, refer to
“6. Flue System” on page 34.

To ensure adequate flue and ventilation, follow these guidelines:

Maintain proper clearances from any openings in the building.

Install the boiler with a minimum clearance of 300 mm above
an exterior grade or as required by local codes.

Do not enclose the flue termination.

Install the exhaust flue in an area that is free from any
obstructions, where the exhaust will not accumulate.

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 are normally kept closed or not
adequately ventilated.

The requirements and recommendations stipulated in the
Regulation for Heating Installations in Buildings (RITE) and any
other applicable legislation in this field must be observed.

3.2 Choosing an Installation Location

When choosing an installation location, you must ensure
that the location provides adequate clearance for the boiler,
adequate venting and drainage options, and sufficient access to
fuel, water, and electrical supplies.

Carefully consider the following factors when choosing an
installation location.

Compliance Requirements

This boiler must be installed by qualified personnel in
compliance with the applicable Laws and Regulations. In
general, these Laws and Regulations are the Heating, Air
Conditioning and Domestic Water Installation Regulation and all
other local regulations.

Access to Utilities

Water – the installation location should be near where the
domestic water supply enters the building.

Fuel – the installation location should be near where the fuel
supply enters the building.

Electricity – the installation location should be near where the
electrical supply enters the building.

Humidity and Contact with Water

When installing the boiler, avoid places with excessive humidity.
The boiler has electric ignition components. Water spray or
droppings can get inside the boiler and damage the ignition
system. The boiler must be installed in a way to ensure that the
ignition system components are protected from water (dripping,
spraying, rain, etc.) during operation and service.

Proximity to Fixtures and Appliances

Install the boiler near fixtures that deliver or use hot water,
such as bathroom, kitchen, and laundry room faucets. Select
a location that minimises the water piping required between
major fixtures. If the distances are long or if the user requires
“instant“ hot water, installation of a recirculation line which
circulates domestic hot water back to the boiler from the
furthest fixture is recommended. Insulate as much of the hot
water supply and recirculation lines as possible. For more
information about the water supply, refer to “4.2 Installing a
System Application” on page 23.