Model 201GAS burner — Instruction manual
Carlin part number MN201GAS Rev. 03/14/11
– 5 –
Where appliance instructions differ from this manual, follow the appliance instructions.
1. Prepare site • prepare burner • mount burner
(continued)
Prepare installation site
Verify combustion/ventilation air openings
(Figure 2)
Installing the burner/appliance in a space that does not provide
enough air for combustion and ventilation can result in severe
personal injury, death or substantial property damage. Follow
all applicable codes and guidelines below to ensure space
has sufficient air openings.
Large spaces
For appliances located in basements, ventilated crawl spaces or other large areas, no
additional air openings should be necessary. Exception: If the building construction
is unusually tight (see National Fuel Gas Code, NFPA 54/ANSI Z223.1, or B149.1/
B149.2 Installation Code for Canadian installations for definition), you will need to
provide air openings into the building if appliance air comes from inside. Provide
one opening within 12 inches of the ceiling, and one opening within 12 inches of
the floor. Size each opening to provide free area (after deduction for louvers) of 1
square inch per 1,000 Btuh input of all fuel-burning appliances in the building
.
Confined spaces — air from inside building
If air openings connect to areas inside the building, 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 deduction for louvers) of 1 square
inch per 1,000 Btuh of all appliances in the space. If the building construction
is unusually tight (see National Fuel Gas Code, NFPA 54/ANSI Z223.1, or
B149.1/B149.2 Installation Code for Canadian installations for definition),
you will need to provide air openings into the building. Provide two openings
sized and located as for the openings into the boiler space.
Confined spaces — air from outside
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 ap
-
pliances in the space.
• If through horizontal ducts: 1 square inch for each 2,000 Btuh of all
appliances in the space.
Optional air inlet boot
For spaces not fitted with large enough air openings, you may be able to
apply the optional Inlet air boot, with air ducted directly to the air boot from
outside. You must use a vent outlet/air inlet termination approved by the
appliance manufacturer. Refer to the appliance instructions and Inlet air
boot instructions for correct application.
You will also have to apply this option if the appliance space may contain corrosive
contaminants, such as laundry products, paints, varnishes or other chemicals.
Even when using the optional Inlet air boot, make sure the
space provides enough ventilation to prevent overheating of
the appliance, burner and controls. If there is risk of over-
heating, you must install ventilation air openings sized large
enough to provide air for cooling the equipment. Failure to
provide ventilation can result in severe personal injury, death
or substantial property damage.
Figure 2
Locating & sizing air openings
