DAMAGED FREIGHT CLAIM PROCEDURE
When the diffusers are received, inspect for damage which
may have occured during shipment. If damage is evident, it
should be noted on the carrier’s freight bill. A written request
for inspection by the carrier’s agent should be made at once.
STORAGE
Cartons should always be stacked on end. Do not stack
cartons flat on their sides. Excessive weight may cause
damage to the diffusers.
Do not store at temperatures exceeding 130°F/56°C.
IDENTIFICATION
The model designation is on the diffuser and on the carton.
INSTALLATION PRECAUTIONS
When installing diffusers, make sure construction debris
does not enter the diffuser or duct system.
Because the model TK-HC controls room temperature by
sensing the room air induced up the center of the room,
care should be taken not to disturb room air induction and
entrainment. For example, location next to walls or dropped
lights results in the reflection of primary air back at the
Therma-Fuser diffuser and should be avoided. A three-way
blow Therma-Fuser diffuser should be used in this instance
if either the light or the Therma-Fuser diffuser cannot be
relocated.
INSTALLATION INSTRUCTIONS
1. Inspect the carton for damage before opening. Notify
carrier if external damage exists. Submit all claims for
shipping damage to the carrier.
2. Move diffusers (in cartons) to installation area. Note unit
identification.
3. Remove cardboard box and other packaging. Discard
packing material.
TK-HC
VAV cooling and VAV heating
TK-C
VAV cooling only
TK-D
Manually adjustable blades
TK-RA
Return air
Models:
TABLE OF CONTENTS
Installation Instructions .........................................
1
System Balancing ..................................................
2
Adjusting Miminum Flow .....................................
2
Adjusting Temperature Setpoints .....................
3
Blow Patterns ........................................................
3
Maintenance ..........................................................
4
Controlling the System .........................................
4
Troubleshooting ....................................................
5
Ten Year Warranty ...............................................
6
4. If other than 4 way blow pattern is factory installed, note
the “AIRFLOW” markings on the top of the diffuser and
locate those sides in the proper direction.
5. Install in ceiling grid. Install T-bar support wire close
to each corner of diffuser. Make sure that only wire
suspended T-bars are used to support diffuser weight.
(Adaptor frames are available for other ceilings.)
6. Connect and secure the supply duct to the collar.
Flexible duct should NOT be formed in a centerline
radius of less than 1½ times the duct diameter (9
in/230mm radius).
7. Do NOT reset the temperature set point on the TK-HC
model until the space is occupied. It is factory preset for
average conditions (74°F/23°C).
8. Balance the system. See
System Balancing
.
9. After the air conditioning system is started and
after
the space is occupied
, where necessary adjust the
temperature set point on TK-HC models to suit the
occupant. See Adjusting Temperature.
OPERATING INSTRUCTIONS
Operating instructions for model TK-HC are located on the
back of the appearance panel.
OPENING THE APPEARANCE PANEL
(TK-HC, TK-C, TK-D)
The appearance panel is attached with a latch clip on one
side and hinges on the opposite side.
To open the appearance panel
(on a Therma-Fuser diffuser
installed in the ceiling):
1. Locate the side of the Therma-Fuser diffuser to the right
(clockwise) from the thermostats.
2. Using two hands, one on each side of the latch clip
bracket, place your fingers above the appearance
panel and firmly pull down to disengage the clip. The
appearance panel will rotate and hang down vertically
on the hinges.
To close the appearance panel:
1. Rotate the panel upward.
2. Latch the panel by pushing the clip into the small square
hole in the bracket.
Figure 1. Dimensions
12" Square/305mm
12
5
/
8
" Square/320mm
5
15
/
16
" OD
150mm
1
1
/
2
"
38mm
2
3
/
8
"
60mm
200% of actual size
FORM 051.201 REV 1704
THERMA-FUSER™ SYSTEMS
SQUARE 1’ x 1’ / 300mm - THERMALLY POWERED VAV DIFFUSER
INSTALLATION & OPERATIONS MANUAL
