lp-666 Rev. 003 Rel. 001 Date 2.25.20
12
Approved Carbon Monoxide Detectors: Each carbon monoxide
detector as required in accordance with the above provisions shall
comply with NFPA 70 and be ANSI/UL 2034 listed and IAS certified.
H. Prevent Combustion Air Contamination
Install intake air piping for the boiler as described in the Venting
Section, this manual. Do not terminate exhaust in locations that can
allow contamination of intake air.
WARNING
!
Ensure that the intake air will not contain any of the contaminants
in Table 1. Contaminated air will damage the boiler, resulting in
possible substantial property damage, severe personal injury, or
death. For example, do not pipe intake air near a swimming pool or
laundry facilities. These areas always contain contaminants.
Products to Avoid
Areas Likely to Have
Contaminants
Spray cans containing
fluorocarbons
Dry cleaning / laundry areas
and establishments
Permanent wave solutions
Swimming pools
Chlorinated waxes / cleaners
Metal fabrication plants
Chlorine-based swimming pool
chemicals
Beauty shops
Calcium chloride used for
thawing
Refrigeration repair shops
Sodium chloride used for water
softening
Photo processing plants
Refrigerant leaks
Auto body shops
Paint or varnish removers
Plastic manufacturing plants
Hydrochloric or Muriatic acid
Furniture refinishing areas and
establishments
Cements and glues
New building construction
Antistatic fabric softeners used in
clothes dryers
Remodeling areas
Chlorine-type bleaches, laundry
detergents, and cleaning
solvents
Garages and workshops
Adhesives used to fasten
building products
Table 1 - Products and Areas Likely to Have Contaminants
NOTE: DAMAGE TO THE BOILER CAUSED BY EXPOSURE TO
CORROSIVE VAPORS IS NOT COVERED BY WARRANTY.
(Refer to
the limited warranty for complete terms and conditions.)
I. Removing a Boiler from a Common Vent System
WARNING
!
Failure to follow all instructions can result in flue gas spillage and
carbon monoxide emissions, causing severe personal injury or death.
DANGER
!
Do not install the boiler into a common vent with any other
appliance. This will cause flue gas spillage or appliance malfunction,
resulting in possible substantial property damage, severe personal
injury, or death.
When removing an existing boiler, follow the steps below.
1. Seal any unused openings in the common venting system.
2. Visually inspect the venting system for proper size and horizontal
pitch to determine if there is blockage, leakage, corrosion, or other
deficiencies that could cause an unsafe condition.
Closed loop water must be free of corrosive chemicals, sand, dirt,
and other contaminates. It is up to the installer to ensure the water
J. Water Chemistry Requirements*
WARNING
!
Chemical imbalance of the water supply may affect efficiency
and cause severe damage to the appliance and associated
equipment. It is important that the water chemistry on both the
domestic hot water and central heating sides are checked before
installing the appliance. Water quality must be professionally
analyzed to determine whether it is necessary to treat the water.
Various solutions are available to adjust water quality. Adverse
water quality will affect the reliability of the system. In addition,
operating temperatures above 135
o
F will accelerate the build-up
of lime scale and possibly shorten appliance service life. Failure of
an appliance due to lime scale build-up, low pH, or other chemical
imbalance IS NOT covered by the warranty.
Figure 8 - CO Warning Label
3. If practical, close all building doors, windows, and doors between
the space in which the boiler remains connected to the common
venting system and other spaces in the building. Turn on clothes
dryers and any appliances not connected to the common venting
system. Turn on any exhaust fans, such as range hoods and bathroom
exhausts, at maximum speed. Do not operate a summer exhaust fan.
Close all fireplace dampers.
4. Place in operation the appliance being inspected. Follow the
lighting instructions. Adjust the thermostat so the appliance will
operate continuously.
5. Test for spillage at the draft hood relief opening after 5 minutes of
main burner operation. Use the flame of a match or candle or smoke
from a cigarette.
6. After it has been determined that each appliance remaining
connected to the common venting system properly vents when
tested as outlined, return doors, windows, exhaust fans, fireplace
dampers, and any other gas burning appliances to their previous
condition of use.
7. Any improper operation of the common venting system should
be corrected to conform to the National Fuel Gas Code, ANSI Z223.1.
When resizing any portion of the common venting system, the
system should approach the minimum size as determined using the
appropriate tables in Appendix G of ANSI Z223.1.
