Tmi S-CFD Installation Manual
READ THIS FIRST
Carefully examine the crate(s) for damage before opening. If the carton is damaged, immediately
notify shipping company. If the unit(s) were shipped on wooden skids, remove protective wood
and banding straps securing the carton(s) to the skid. Open the carton(s) and remove all protective
packaging. Immediately verify that the electrical rating nameplate located on the cover matches
electrical power supply available. Retain the shipping carton(s) until the unit(s) is installed and
properly operating. TMI, LLC is not responsible for delayed or late claims.
Read and Save These Instructions
AIR CURTAINS
INSTALLATION INSTRUCTIONS
S-CFD, S-IBD, S-LI, S-MI, S-HD SERIES
TMI, LLC
Managing Environments™
Serial No: ________________ Model #: _______________ Date Purchased: ___________
Warning
To Reduce the Risk of Fire, Electrical Shock, or Injury, Observe the Following:
• Use this unit only in the manner intended by the manufacturer. If you have any questions, contact the manufacturer.
• Before servicing or cleaning unit, switch power off at the service panel and lock the service disconnecting means to
prevent power from being switched on accidentally. When the service disconnecting means cannot be locked,
securely fasten a prominent warning device, such as a tag, to the service panel.
• Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable codes
and standards, including fire-rated construction. Units must be field wired in accordance with all local National
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Electric Codes, including wire size and materials. Units can accept
or either side of unit. Wires from conduit are to be run to junction box inside of unit.
• Sufficient air is needed for proper combustion and exhausting of gases through the flue (chimney) of fuel burning
equipment to prevent back drafting. Follow the heating equipment manufacturer’s guideline and safety standards
such as those published by the National Fire Protection Association (NFPA), and the American Society for Heating,
Refrigeration and Air Conditioning Engineers (ASHRAE), and local code authorities.
• When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities. Do not operate
this fan with any solid state speed control device.
/2” conduit by punching out the knockouts on top
Uncrating and Unpacking
Please read the “READ THIS FIRST” note on the
front cover of this manual before proceeding.
Carefully remove as much of the crate as possible so the inlet screws
are exposed. Use a Phillips head screwdriver to remove the screws that
hold the intake screen in place. Remove the screen and applicable filter(s). Place the screws in a safe place. (See Fig. 1)
Use a 3/8” socket and extension to remove four lag bolts that hold
the unit to the skid. The air curtain is now ready for installation. The
air curtain can be lifted by the blower housing inlets. Use caution.
Do not grasp the unit by the blower wheels. They will bend, pulling
the unit out of balance and alignment. (See Fig. 1 & Fig. 2)
The air curtain is now ready for installation.
IMPORTANT NOTE
Fig. 01
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2
3
4
Fig. 2
If the air curtain(s) was ordered with optional electrical
components and accessories (door switch, control panels,
mounting brackets, etc), the accessories may be found in
the crate containing the air curtain or in an additional crate
or box. Check all of the crates and boxes before disposing
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Fig. 3
Mounting Methods
How your Air Curtain is mounted depends on your doorway opening and what equipment or obstructions are in the way.
Below are the standard methods of mounting. All mounting methods will require additional hardware. to complete the
mounting operation. Lag screws, hex bolts, washers, nuts and threaded rods can be supplied by others, but wall brackets, extension bars and extension plates will have to be ordered from TMI, LLC. Check with a sales representative at 1800-888-9750
Wall
Standard Wall
Mount
Mounting Plate
Mounting
Brackets
Ceiling Mount
with
Threaded Rods
Extension
Plates with
Threaded Rods
Extension Bars
with
Threaded Rods
Wall Mounting
Brackets with
Threaded Rods
Vertical
Mounting
for
Low Ceilings
or
No Space
Above Header
Tandem Mounting
If your installation requires tandem mounting,
there should be no space between units. Wall
mounting brackets cannot be used. Also keep in
mind that the wiring must go from the master unit
to the slave unit by using jumper wires.
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Mounting Notes
IMPORTANT
FLUSH MOUNT
4’’
Minimum
Space
Required
A minimum of 4'' (8'' preferred) is recommended
above the top of the air curtain for the installation
SPACER
SEAL
and removal of the screen or to gain access to
AIR
CURTAIN
AIR
INTAKE
junction boxes.
AIR
CURTAIN
AIR
INTAKE
For optimal performance, the bottom of the unit
1’’
OUTLET NOZZLE
TOP OF DOORWAY
Fig. 4
Maximum
(discharge nozzle) should be no more than 1''
above the top of the door opening with the unit
mounted flush to the wall. (See Fig. 4)
If the unit must be mounted higher, it must be
spaced out from the wall 1/2'' for every inch the
unit is above the door opening. Also a seal must
be placed between the entire length of the unit
2’’
SPACER
OUTLET NOZZLE
TOP OF DOORWAY
Fig. 5
and the wall. (See Fig. 5)
1. Units may be attached to the wall directly, suspended from overhead, or supported by brackets. The style of door will
determine the best mounting method and as a general rule, use the mounting configuration that positions the air curtain
as close to the top of the doorway as possible without interfering with door operation.
2. To achieve optimal protection, the unit should be mounted on the inside of the building, flush to the wall and as close to
the top of the door opening as possible. NOTE: An S-IBD unit can be mounted on the outside of the doorway opening. If
the unit is exposed to the weather, a drip plate should be placed on the motor(s) to protect it from the elements.
3. To ensure peak performance, keep the air stream free of obstructions. Make sure that nothing interferes with the curtain
of air. If the air curtain cannot be installed flush with the wall, be sure to seal the gap between the wall and the back of
the air curtain along the entire length of the unit to prevent airflow through this void. (See Fig. 5). The discharge vane is
directed from 0° to 20° toward the door opening. If the air stream strikes any obstruction (the top edge of the doorway,
a door opening device, etc.), the effectiveness of the unit will be greatly reduced.
4. The air curtain will not perform properly if negative air pressure exists in the building. Under these conditions, a means
for makeup air to the building must be provided so that the air pressure on both sides of the opening is in balance.
5. Before mounting the air curtain, check the supporting structure to verify that it has sufficient load-carrying capacity to
support the weight of the unit(s). The mounting hardware (may be supplied by others) should be capable of supporting
a minimum of three (3) times the weight of the unit.
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Standard Wall Mounting
1. Remove the screws that hold the intake screen in place. Remove the screen
and applicable filter(s). The rear side of the air curtain has four mounting
holes that can accept four 3/8” mounting bolts or lag screws with washers.
(See Fig. 6)
2. Place the Air Curtain into position. Using a pencil, mark the 4 mounting
holes. (See Fig. 7) Remove the unit. If using lag screws, pre-drill the
mounting holes. If using mounting anchors, drill the holes and place the
anchors.
3. Again place the Air Curtain into position. Using a ratchet and socket with a
long extension, screw the unit to the wall. (See Fig. 8) The socket exten-
Fig. 6
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sion should allow you to install the unit without having to remove the
motor/blower plate.
NOTE: Mounting bolts or lag screws of sufficient size and strength should be
installed and tightened through the four 7/8” holes in motor/blower
plate.
4. Replace intake grill.
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4
Fig. 7
If motor/blower plate has to be removed, the junction box inside
the unit must be removed, along with any electrical switches that
might be in the way. The electrical switches have a lever that slides
in one direction to release the switch contacts from the switch
body. All wires will stay intact, making replacing the blower plate
7
/16'' whiz lock nuts holding plate in place and slide
Fig. 8
easy. Remove
the plate out. Rotate the top portion of plate so it comes out first.
Remember when installing the plate to put the bottom of the plate
in first and push and rotate the top of the plate in last.
The unit is now ready to be wired. See page 14. It must be field wired
in accordance with all applicable local, state, provincial, and national
laws, including wire size and materials.
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