T3SQ-4-IOM-3.0 05-17-07
Installation, Operation & Maintenance of the T
3
SQ Thermal
VAV Diffuser
Step 1
The units should be shipped assembled except for the backpan.
Remove all packaging from the components. The thermal T
3
SQ is shipped with additional packaging to
protect the actuator assembly. Be sure to remove packaging between the diffuser plaque and the control
disc. Make sure that no packaging is obstructing the thermal element at the top of the actuator or the
induction cap on the plaque.
If unit is not assembled, follow the steps below before proceeding (See Figure 1):
1. Insert induction cap into plaque of diffuser.
2. Insert venturi tube into induction channel until tabs engage.
3. Slide control disc over venturi tube.
4. Insert actuator through center hole in the control disc and snap into induction channel.
Induction Channel
Face Plaque
Venturi Tube
Thermal Actuator
Control Disc
Backpan
IOM Label
Induction Cap
Figure 1.
T
3
SQ-4 Parts & Assembly