MN702GE 060320
– 5 –
2. Pre-fire inspection • preparation
Vent system
Vent/chimney sizing
1.
Follow all local codes when sizing the vent and chimney.
2.
Refer to the appliance manufacturer’s manual, when available, for venting
recommendations.
Combustion air/ventilation openings
Combustion air/ventilation opening checklist
•
Verify that air openings are unobstructed.
•
Verify that appliance space and air source spaces are free of:
•
Gasoline or other flammable liquids or vapors.
•
Combustible materials.
•
Air contaminants, such as laundry products, paint, thinner, varnish, etc.
•
Confirm with user that the area will be kept free of these materials at
all times.
•
All air from inside building (building must be well-ventilated):
Size air openings for a free area (after louver deduction) of at least 1
square inch per 1,000 Btuh input of all appliances in the space.
•
All air through openings directly from outside the building through an
adjacent outside wall:
If air openings connect directly to outside, provide two openings, one
within 12 inches of the ceiling, the other within 12 inches of the floor. Each
opening must have a free area (after louver deduction) of:
•
If directly through side wall: 1 square inch for each 4,000 Btuh of all
appliances in the space.
•
If through vertical ducts: 1 square inch for each 4,000 Btuh of all
appliances in the space.
•
If through horizontal ducts: 1 square inch for each 2,000 Btuh of all
appliances in the space.
Do not install or operate the burner if any component is dam-
aged or if burner does not comply with other guidelines of this
manual and the appliance manual.
Inspect, repair and/or replace vent
system
Do not install this burner unless you have verified
the entire vent system and the appliance are in
good condition and comply with all applicable codes.
And . . .
The vent and chimney must be sized and constructed
in accordance with all applicable codes for gas firing.
The vent system must not be pressurized unless the
vent piping and vent system are designed accordingly.
The vent must provide draft at all times (negative pres-
sure in vent).
Do not install or use an existing manual damper in the
vent connector or vent.
Do not connect the appliance vent connector to a
chimney or vent serving a fireplace, incinerator or
solid-fuel-burning apparatus.
In a cold climate, do not vent into a masonry chimney
that has one or more sides exposed to the outside.
Install a listed stainless steel liner to vent the flue
products.
A defective vent system could result in severe personal
injury, death or substantial property damage.
Mount burner in appliance
1.
Verify the bolt pattern on the appliance chamber matches the flange
pattern.
2.
Verify the insertion depth (UTL) matches the depth of the appliance
opening (so the end of the air tube is flush with, or slightly short of, the
inside surface of the combustion chamber).
3.
Place gasket onto boiler front plate.
4.
Slide the end of the air tube into the opening and secure the flange to
the boiler front plate.