Lochinvar Knight Wall Mount Soiler 51-211 - Manual (Page 18)

3
General venting
18
Installation & Operation Manual
If the boiler combustion air inlet is located
in a laundry room or pool facility, for
example, these areas will always contain
hazardous contaminants.
To prevent the potential of severe personal
injury or death, check for areas and products
listed in Table 1A, page 10 before installing
the boiler or air inlet piping.
If contaminants are found, you MUST:
• Remove contaminants permanently.
—OR—
• Relocate air inlet and vent
terminations to other areas.
ƽ WARNING
ƽ WARNING
Optional room air
Commercial applications utilizing the Knight wall mount
boiler may be installed with a single pipe carrying the flue
products to the outside while using combustion air from
the equipment room. In order to use the room air venting
option the following conditions and considerations must be
followed.
• The unit MUST be installed with the appropriate
room air kit (Table 3C).
• The equipment room MUST be provided with
properly sized openings to assure adequate
combustion air. Please refer to instructions provided
with the room air kit.
• There will be a noticeable increase in the noise level
during normal operation from the inlet air opening.
• Using the room air kit makes the unit vulnerable to
combustion air contamination from within the
building. Please review Section 1, Prevent
Combustion Air Contamination, to ensure proper
installation.
• Vent system and terminations must comply with the
standard venting instructions set forth in this
manual.
ƽ WARNING
When utilizing the single pipe method,
provisions for combustion and ventilation
air must be in accordance with Air for
Combustion and Ventilation, of the
latest edition of the National Fuel Gas
Code, ANSI Z223.1, in Canada, the latest
edition of CGA Standard B149 Installation
Code for Gas Burning Appliances and
Equipment, or applicable provisions of the
local building codes.
Model Kit Number
51 - 106 KIT30051
151 - 211 KIT30052
Table 3C Optional Room Air Kit
NOTICE
Optional room air is intended for
commercial applications. Combustion air
piping to the outside is recommended for
residential applications. Air contamination
Pool and laundry products and common household and hobby
products often contain fluorine or chlorine compounds. When
these chemicals pass through the boiler, they can form strong
acids. The acid can eat through the boiler wall, causing serious
damage and presenting a possible threat of flue gas spillage or
boiler water leakage into the building.
Please read the information given in Table 1A, page 10,
listing contaminants and areas likely to contain them. If
contaminating chemicals will be present near the location of the
boiler combustion air inlet, have your installer pipe the boiler
combustion air and vent to another location, per this manual.