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 Commercial Combustion Air In-Forcer™  
 




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Commercial Combustion  Air
In-Forcer
Support Documents

ACCESSORY CONTROLS FOR MULTIPLE HEATER INTERLOCKS
 

UC1 Inst
MAC1E Inst
MAC4E Inst
WHKE Inst

Complete Doc Library
THE PROBLEMS:  

Insufficient combustion air causes:
 

» Flue gas spillage, flame roll-outs, decreased efficiencies, and reduced heating equipment life.
Conventional metal louvers often are a major cause of these problems:
» Unregulated outdoor air supply that changes with temperatures, speed and direction of winds.
» Architecturally unsightly large outside wall openings that often require structural reinforcement.
» Mechanical room freeze ups in northern climates.
» Often not compatible with below grade or interior mechanical rooms.
Starved for Air

THE SOLUTION:

Tjernlund In-Forcer combustion air intakes are packaged systems engineered to provide controlled, interlocked combustion air.

» Wall or roof opening size can be reduced by up to 80% compared to conventional metal louvers.
» In-Forcer's include matching, low profile intake hoods that can be mounted on either a roof or sidewall.
» Use small diameter duct to deliver outdoor air up to 100 feet away from intake hood.
» Complies with Mechanical Code requirements for combustion air supply.
Commercial In-Forcer

Complies with Mechanical Code requirements for combustion air supply.


Use in virtually all mechanical room locations
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.

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
Vent Hood

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

 
 
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.
 

DIMENSIONS
IN-FORCER DIMENSIONS
A
B
C
IN/OUTLET
PAI-4
12"
9-1/2"
20"
8"
PAI-6
13-3/4"
15-1/4"
24-1/4"
10"
PAI-7
16-5/8"
18"
32"
12"
INTAKE HOOD DIMENSIONS
 
A
B
C
D
PAI-3
14"
14"
8-1/4"
6"
PAI-4
17-1/2"
17-1/2"
10-3/4"
8"
PAI-5
24-1/2"
24-1/2"
10-1/2"
10"
PAI-6
24-1/2"
24-1/2"
10-1/2"
10"
PAI-7
31"
31"
11"
12"

 

 

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