Navien NHB H Series, Инструкция по установке и эксплуатации

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53 Venting for Combustion Air
The boiler must be properly vented to ensure a
constant supply of clean intake air and to ensure
that exhaust air is properly removed from living
areas. When venting the boiler, follow these
guidelines:
●
Do not install the boiler in areas with
contaminated air (containing a high level of dust,
sawdust, sand, flour, aerosols, or any other such
airborne contaminants), as contaminants can
cause operational problems. The warranty does
not cover damage caused by contaminants in the
installation area. If you must install the boilers
in an area with contaminated air, use direct
venting to supply air from outside the building.
We recommend regular filter cleaning and
maintenance in these areas.
●
For best results, keep the venting system as short
and straight as possible.
●
Locate the boiler as close as possible to the vent
termination.
●
Do not connect the boiler vent to a vent for any
other gas boiler or vent stack.
●
For horizontal runs, slope the horizontal section
upward toward the vent termination at a rate of
1
/
4
in per foot (2 % slope).
●
Create an airtight seal at each joint in the exhaust
and intake air pipes from the boiler collar to the
vent termination (see below).
Note
Do not cover any non-metallic vent
materials with thermal insulation.
5.1 Venting the Boiler
DANGER
This appliance is certified as a Category IV
appliance and requires a special venting system.
The vent system operates with a positive
pressure in the pipe.
To prevent serious injury or death:
●
ALWAYS vent exhaust gases directly outdoors
using the vent materials and following these
instructions.
●
DO NOT connect vent connectors serving
appliances vented by natural draft into
any portion of mechanical draft systems
operating under positive pressure.
WARNING
Improper venting of the boiler can result in
excessive levels of carbon monoxide and can
lead to serious injury or death.
This boiler must be vented in accordance with
the “Venting of Equipment” section of the latest
edition of the ANSI Z223.1/NFPA 54 Natural Fuel
Gas Code in the USA and/or the “Venting systems
and air supply for boilers” section of the latest
version of the CAN/CGA B149.1 Natural Gas and
Propane Installation Code in Canada, as well as all
applicable local building codes and regulations.
To prevent serious injury or death:
●
ONLY licensed professionals should install
venting.
●
ALWAYS follow all regulations, codes, and
instructions when venting the boiler.
●
ALWAYS seal the venting system gastight to
prevent flue gas leakage and carbon monoxide
emissions.
●
The building owner is responsible to maintain
the exhaust and intake terminations free of
snow, ice, or other potential blockages, as well
as scheduling routine maintenance.
●
ALWAYS seal the venting system gastight to
prevent flue gas leakage and carbon monoxide
emissions.
●
The building owner is responsible to maintain
the exhaust and intake terminations free of
snow, ice, or other potential blockages, as well
as scheduling routine maintenance.