Navien LST-58K, Instruction Manual

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Install the boiler on the surface with a structure capable of enduring the load of the boiler
(weight). (Refer to the specifications presented in the user’s manual.)
Install the boiler in a horizontal, upright position so that the boiler does not lean toward
one side.
Installation shall be made for the front side of the boiler to face forward.
Install the boiler to be fixed on the floor, in order to prevent vibration during operation.
Sufficient light shall be provided with the boiler room in order to help to observe the boiler
equipment by sight and offer the warranty service for the equipment.
Boiler installation
Be sure to install the boiler in the dedicated boiler room.
(The boiler room shall be designed for the gas emitted from the boiler not to flow into the
living room, and the wall between the boiler room and the living room shall be made of the
fireproof materials, except for the entrance / exit door.)
The dedicated boiler room shall not be equipped with the ventilating fan which causes the
negative pressure (the pressure lower than the atmosphere pressure).
The dedicated boiler room shall not be equipped with the exhaust duct of the gas range
(hood) which leads to air flowing in and out of the living room and the kitchen.
Installation of the boiler shall not be made nearby the place for storage and treatment of the
combustible or inflammable objects. A sufficient space shall be provided for boiler installation
as presented in the following figure, in order to perform the control, combustion, check-ups
and repair of the boiler.
The top of the boiler body shall be kept at least 1.2m away from the structures such as the
ceiling and the piping.
The boiler body shall be kept at least 450mm away from other structures on the side of the
boiler such as the wall and the piping.
The front of the boiler shall be kept at least 1m away from the structures in front of the wall.
Precautions for boiler installation in a dedicated
boiler room