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Commercial Combustion Air
In-Forcer™ Support Documents |
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| THE
PROBLEMS:
Insufficient combustion
air causes:
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Flue gas spillage, flame roll-outs, decreased efficiencies, and
reduced heating equipment life.
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Conventional metal
louvers often are a major cause of these problems: |
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Unregulated outdoor air supply that changes with temperatures, speed and direction of winds.
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Architecturally unsightly large outside wall openings that often
require structural reinforcement. |
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Mechanical room freeze ups in northern climates.
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Often not compatible with below grade or interior mechanical rooms. |
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| THE
SOLUTION:
Tjernlund In-Forcer
combustion air intakes are packaged systems engineered to provide controlled,
interlocked combustion air.
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Wall or roof opening size can be reduced by up to 80%
compared to conventional metal louvers.
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In-Forcer's include matching, low profile intake hoods that
can be mounted on either a roof or sidewall.
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Use small diameter duct to deliver outdoor air up to 100
feet away from intake hood.
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Complies with Mechanical Code requirements for combustion
air supply. |
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Complies with Mechanical
Code requirements for combustion air supply.
Use
in virtually all mechanical room locations
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| The IN-FORCER can be ducted
up to 100 equivalent feet from the intake hood. Even isolated mechanical
rooms can be easily supplied with outdoor combustion air. Cold outdoor
air can be distributed through standard ducts and diffusers at ceiling
level, allowing the air to be tempered as it drops to the floor, eliminating
cold spots in the Mechanical room. Mechanical room noise transfer
to the outside is further reduced since there is no direct wall opening,
typical of standard louvers. |
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Variety
of applications
 Restaurant
kitchens with negative
pressure
caused by exhaust fans |
Confined
space installations |
Interior
mechanical rooms with no
direct
access to an outside wall |
Below
grade mechanical rooms |
Conversions
from electric to gas or
oil heating
appliances |
Factories
where processes cause
back drafting
of heating equipment |
Laundries,
dry cleaners, indoor pools, etc. with
chemically
contaminated atmosphere |
Small
wall opening lowers installation cost
Improves
building's exterior appearance
Compared
to standard louvers, wall openings can be reduced by up to 80%. This
eliminates the need for extra support around the opening that can cost
far more in extra construction labor and materials than the total installed
cost of an IN-FORCER. What's
more, IN-FORCER'S low profile hood blends into a sidewall or roof line
and is designed to keep wind and rain out. Heavy duty 5052 aluminum
construction will not corrode. |
IN-FORCER
MODEL APPLICATION CHART
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Multiple IN-FORCERS may be installed for capacities larger than shown on
chart.
Tjernlund Specified Systems VSUB-Series Variable Speed Universal Blowers are also available
for larger capacity applications.
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DIMENSIONS
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IN-FORCER
DIMENSIONS
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A
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B
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C
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IN/OUTLET
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PAI-4
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12"
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9-1/2"
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20"
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8"
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PAI-6
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13-3/4"
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15-1/4"
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24-1/4"
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10"
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PAI-7
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16-5/8"
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18"
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32"
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12"
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INTAKE
HOOD DIMENSIONS
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A
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B
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C
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D
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PAI-4
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17-1/2"
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17-1/2"
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10-3/4"
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8"
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PAI-6
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24-1/2"
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24-1/2"
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10-1/2"
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10"
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PAI-7
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31"
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31"
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11"
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12"
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