Installation Instructions

Document No. 546-00334
Installation Instructions
December 8, 2011
Page 4 of 7 Siemens Industry, Inc.
2. For angle iron hangers. Cut two pieces of
angle iron 4 inches wider than the terminal box
(Figure 3) and mount them to the bottom of the
terminal using sheet metal screws. Mount the
angle iron so that it does not interfere with
internal parts or the access panel.
Figure 3. Angle Iron Installation.
3. Drill holes in the angle iron to accommodate the
‘J’ bolts or threaded rod. If ‘J’ bolts are used,
secure them to the angle iron. Skip to Step 5 if
the terminal will be suspended using hanger
wire. Skip to Step 6 if the terminal will be
suspended using threaded rod.
4. For hanger brackets. Mount the four hanger
brackets to the top of the terminal using sheet
metal screws (See Figure 4) so they do not
interfere with internal parts.
5. For hanger wire. Using hanger wire suspended
from the building’s bar joist or from mounting
anchors properly secured to the building’s
structure with lugs or poured-in-place hangers,
secure the unit and level it in each direction
(Figure 3 and Figure 4). Percussion nails are not
adequate anchors.
6. For threaded rod. Using threaded rod
suspended from the building’s bar joist or from
mounting anchors properly secured to the
building’s structure with lugs or poured-in-place
hangers, secure the unit and level it in each
direction (Figure 3 and Figure 4). Percussion
nails are not adequate anchors.
NOTE: The terminal’s round collars must be
positioned as the supply inlets. If a controls
enclosure is attached to the terminal box,
the controls enclosure must be mounted
vertically.
Figure 4. Hanger Bracket Installation.
7. Connect the supply ductwork to the supply
terminal’s round inlet collars using the accepted
trade practice of welding or bolting the supply
terminal to the ductwork.
8. Seal all ductwork and check that the air supply
duct connections are airtight.
9. Connect the square slip and drive connections
of the supply terminal to the discharge ducts.
Section 2 – Actuation
For application specific actuator wiring, reference
the appropriate controller installation instructions.
For actuator wiring, reference the appropriate
actuator Technical Instructions.
Field Panels and Unitary Controllers (UCs)
Tubing Connections
1. For damper and actuator controls mounted
inside the controls enclosure. Connect the
1/4-inch poly tubing from the 20 to 30 psi supply
line to the port labeled “Supply Air 20–30 psi” on
the side of the controls enclosure (Figure 5).
Figure 5. Dual Duct Supply Terminal Pneumatic
Piping Connections and Terminal Knockout.