Vent System; Chimney Or Vent Requirements - Weil-McLain GOLD CGa Installation And Maintenance Manual

GOLD
1c
Prepare boiler location —
Failure to follow all instructions can result in flue gas spillage and carbon monoxide emissions, causing severe
personal injury or death.
Inspect existing chimney before installing boiler. Failure to clean or replace perforated pipe or tile lining will cause
severe personal injury or death.
Do not alter boiler draft hood or place any obstruction or non-approved vent damper in breeching or vent system.
CSA certification will become void. Flue gas spillage and carbon monoxide emissions will occur causing severe
personal injury or death.
When removing boiler from
existing common vent system:
At the time of removal of an existing boiler, the following
steps shall be followed with each appliance remaining
connected to the common venting system placed in
operation, while the other appliances remaining
connected to the common venting system are not in
operation.
a.
Seal any unused openings
system.
b.
Visually inspect the venting system
size and horizontal pitch and determine there is no
blockage or restriction, leakage, corrosion or other
deficiencies which could cause an unsafe condition.
c.
Test vent system
building doors and windows and all doors between
the space in which the appliances remaining
connected to the common venting system are
located and other spaces of the building. Turn on
clothes dryers and any appliance not connected to
the common venting system. Turn on any exhaust
fans, such as range hoods and bathroom exhausts,
so they will operate at maximum speed. Do not
operate a summer exhaust fan. Close fireplace
dampers.
d.
Place in operation
Follow the lighting/operating instructions. Adjust
thermostat so appliance will operate continuously.
e.
Test for spillage
5 minutes of main burner operation. Use the flame
of a match or candle.
f. After it has been determined that
remaining connected to the common venting system
properly vents when tested as outlined above, return
doors, windows, exhaust fans, fireplace dampers,
and any other gas-burning appliance to their
previous conditions of use.
Any improper operation of common venting system
should be corrected so the installation conforms with
the National Fuel Gas Code, ANSI Z223.1-latest edition.
Correct by resizing to approach the minimum size as
determined using the appropriate tables in Part 11 of
that code. Canadian installations must comply with
B149.1 or B149.2 Installation Code.
8
CGa Gas-Fired Water Boiler
in the common venting
— Insofar as is practical, close all
the appliance being inspected.
at draft hood relief opening after
each appliance

vent system

Chimney or vent requirements

1. Venting must be installed according to Part 7,
Venting of Equipment, of 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 table on page 67 for minimum chimney
or vent sizes. A chimney or vent
should extend
cap
where it passes through a roof of a building
point
for proper
and
at least 2 feet higher
building within a horizontal distance of 10 feet
A chimney or vent must not extend less than the
distances stated above.
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 connections and chimney linings can
be obtained from local gas utility.
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. Weil-McLain
recommends the following 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
appliance
additional appliance.
without a listed
at least 3 feet above the highest
than
any portion of a
Type B
to area of vent outlet on largest
of vent outlet area on
plus 50 percent
Part Number 550-110-593/1099
.
double-