Installation Instructions

Table Of Contents
Document No. 546-00449
Installation Instructions
August 10, 2004
Bending Linkages (Horizontal)
NOTE: If more than one UniTrak is mounted on the
fume hood, repeat the following steps for
each UniTrak.
Bends will reduce overall length by 1/2 inch
to 1-1/2 inches.
A 45-degree angle will clear most obstacles.
1. Estimate the mounting position of the linkage
(approximately 1 inch from the top edge of the
sash) (Figure 16).
FUM0345R1
HORIZONTAL
SASH LINKAGE
FUM0358R1
REMEMBER TO
CLOSE THE SASH
Figure 16. Location of Horizontal Linkage.
2. Using the permanent marker, mark the linkage
where it is even with the UniTrak
actuator car.
3. Measure the distance from the edge of the sash
frame to the far edge of the actuator car = X
(Figure 17 and Figure 18).
Figure 17. Linkage Clearance Measurement.
Figure 18. Linkage Clearance Measurement for Dual
UniTrak sensors.
(X+1/8")
MARK LINKAGE
AND BEND HERE
FIRST ACTUATOR
BLOCK MARK
Figure 19. Marking the First Linkage Bend.
4. Add 1/8 inch to X.
5. Using the 1/8 inch + X value, measure from the
first actuator car mark toward the mounting
plate, mark this location (Figure 19).
Page 8 of 13 Siemens Building Technologies, Inc.