Prepare Boiler - Weil-McLain CGt 2 Series Manual

CGt
GAS-FIRED WATER BOILER — Series 2 —
1d
Prepare boiler location — vent system
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.
Direct exhaust venting (Category III)
system (Category III). Connecting more than one appliance to a direct exhaust system will cause flue gas spillage
or appliance malfunction, resulting in possible severe personal injury, death or substantial property damage.
When removing boiler from an
existing common vent system:
At the time of removal of an existing boiler, the following
steps shall be followed with each appliance remaining con-
nected to the common venting system placed in operation,
while the other appliances remaining connected to the
common venting system are not in operation.
Seal any unused openings
a.
system.
Visually inspect the venting system
b.
size and horizontal pitch and determine there is no
blockage or restriction, leakage, corrosion or other
deficiencies which could cause an unsafe condition.
Test vent system
c.
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 vent-
ing 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.
Place in operation
d.
Follow the operating instructions. Adjust thermostat
so appliance will operate continuously.
Test for spillage
e.
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 13 of that
code. Canadian installations must comply with B149.1 or
B149.2 Installation Code.
8
— Do not common vent (sidewall vent only) the CGt in a direct exhaust
in the common venting
for proper
— Insofar as is practical, close all
the appliance being inspected.
at draft hood relief opening after 5
each appliance
Boiler Manual
Chimney or vent require-
ments
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 chim-
ney or vent sizes. A chimney or vent
listed cap
should extend
the highest point
of a building and
any portion of a building within a horizontal
distance of 10 feet
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 reten-
tion 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
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.
without a
at least 3 feet above
where it passes through a roof
at least 2 feet higher
. A chimney or vent must not
double-wall metal vent pipe or
Part Number 550-110-290/0219
than