Part Number 550-110-710/0200
8
GOLD CGi Series 2 Gas-Fired Water Boiler
Prepare boiler location — vent system
Do not install the CGi into a
common vent with any other
appliance. This will cause flue gas
spillage or appliance malfunction,
resulting in possible severe personal
injury, death or substantial property
damage.
1c
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 in the common venting
system.
b. Visually inspect the venting system for proper
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 — Insofar as is practical, close
all 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 the appliance being inspected.
Follow the operating instructions. Adjust
thermostat so appliance will operate continuously.
e. Test for spillage at draft hood relief opening after
5 minutes of main burner operation. Use the flame
of a match or candle.
f. After it has been determined that each appliance
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.
Failure to follow all instructions can
result in flue gas spillage and carbon
monoxide emissions, causing
severe personal injury or death.
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 without a listed
cap should 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.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. 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. 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.
Inspect existing chimney before
installing boiler. Failure to clean or
replace perforated pipe or tile lining
will cause severe personal injury or
death.
CGi venting
