Install Instructions

Table 3 Contaminants to avoid
Part Number 550-110-639/0512
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EGH Gas-firEd boilErs — sEriEs 4 — boilEr manual
Products to avoid
Spray cans containing chloro/uorocarbons
Permanent wave solutions
Chlorinated waxes/cleaners
Chlorine-based swimming pool chemicals
Calcium chloride used for thawing
Sodium chloride used for water softening
Refrigerant leaks
Paint or varnish removers
Hydrochloric acid/muriatic acid
Cements and glues
Antistatic fabric softeners used in clothes dryers
Chlorine-type bleaches, detergents, and cleaning solvents
found in household laundry rooms
Adhesives used to fasten building products and other
similar products
Areas likely to have contaminants
Dry cleaning/laundry areas and establishments
Swimming pools
Metal fabrication plants
Beauty shops
Refrigeration repair shops
Photo processing plants
Auto body shops
Plastic manufacturing plants
Furniture renishing areas and establishments
New building construction
Remodeling areas
Garages with workshops
Figure 3 Terminations with Type B vent fitted with listed cap, provided
vent is at least 8 feet from any vertical wall or similar
obstruction
Vent System (continued)
Chimney or vent requirements
1. Ventingmustbe installedaccordingtotheNationalFuelGas Code,
ANSIZ223.1–latesteditionandapplicablebuildingcodes.Canadian
installations must comply with B149.1 or B149.2 Installation Codes.
2. See “Ratings” on page 38 for minimum chimney or vent sizes. Chimney
or vent termination:
• Achimney,oranyventotherthanaTypeBventwithlistedventcap,must
extend at least 3 feet above the highest point where it passes through a roof
of a building, and at least 2 feet higher than any portion of a building within
a horizontal distance of 10 feet.
• TypeBventswithlistedcapsmayterminateasinFigure3ifnocloserthan
8 feet from a vertical wall or similar obstruction.
• Otherwise,TypeBventsmustterminateatleast2feetabovetheroofpen-
etration and at least 2 feet higher than any portion of a building within 10
feet.
3. A lined chimney is preferred and must be used when required by local,
state, provincial and national codes, laws, regulations and ordinances.
Vitreoustileliningswithjointsthatpreventretentionofmoistureand
linings made of noncorrosive materials are best. Advice for flue connec-
tions and chimney linings can be obtained from local gas utility. Type B
double-wall metal vent pipe or single-wall vent pipe may be used as a
liner.
4. Cold masonry chimneys, also known as outside chimneys, typically have
one or more walls exposed to outside air. When any atmospheric gas-
fired boiler with automatic vent damper is vented through this type of
chimney, the potential exists for condensation to occur. Condensation
can damage a masonry chimney. The following are recommended to
prevent possible damage.
a. Line chimney with corrosion-resistant metal liner such as AL29-4C®
single-wall stainless steel or B-vent. Size liner per National Fuel Gas Code
ANSIZ223.1–latestedition.
b. Provide drain trap to remove any condensate.
5. Where two or more gas appliances vent into a common chimney or vent,
equivalent area should be at least equal to area of vent outlet on largest
appliance plus 50 percent of vent outlet area of additional appliances.
Air contamination
1. Please review the following information on potential
combustion air contamination problems.
2. See Table 3 for products and areas which may cause
contaminated combustion air.
To prevent potential of severe personal
injury or death, check for products or
areas listed below before installing boiler.
If any of these contaminants are found:
•Removecontaminantspermanently.
— OR —
 •Isolateboilerandprovideoutsidecom-
bustion air. See national, provincial
or local codes for further informa-
tion.
Prepare boiler location