Installation Instructions
Document No. 546-00100
Installation Instructions
Rev. 3, February, 2000
Siemens Building Technologies, Inc. Page 5 of 8
Figure 7. Attaching Linkage to Actuator Block.
5. For sensors mounted at a 45 °
°°
°angle. Grip
both
wires of the linkage with the adjustable wrench
and bend the linkage at a 45° angle on the mark
so that the linkage is parallel to the sash. See
Figure8.SkiptoStep8.
MOUNTING BLOCK
FUME HOOD
SASH
LINKAGE
ACTUATOR
FUME HOOD
OUTSIDE WALL
FUM0206R1
Figure 8. Linkage on 45°
°°
° Angle.
6. For sensors mounted at a 90°
°°
°angle. Grip
both
wires of the linkage with the adjustable wrench
and bend the linkage at a 90° angle on the mark
so the linkage is parallel to the sash.
7. Move the sash to the fully open position. Be sure
that the actuator block is at the bottom of the
sash sensor.
8. Attach the linkage to the actuator block by
pinching the upper end of the linkage together
and inserting it through the holes on the side of
the actuator block. See Figure 7.
Section 3: Bending Linkage
Inside sash UniTrak mount:
1. Locate the surface to which the mounting
blocking will be attached.
NOTE: Whenever possible, use the regular
linkage mounting block. If space is
limited, use the mini-mounting block.
2. Measure the distance (x) from the edge of the
sash glass to the edge of the UniTrak. See
Figure 5.
3. If a regular mounting block is used, add 1/8-inch
(3 mm) to the measurement made in Step 2. If a
mini-mounting block is used, subtract 1/4-inch
(6 mm) from the measurement made in Step 2.
4. Measure from the upper end of the linkage to
the value you obtained in Step 3. Use the
permanent marker to mark this point on the
linkage. See Figure 6.
5. Grip
both
wires of the linkage with the adjustable
wrench and bend the linkage at a 90° angle on
the mark so the linkage is parallel to the sash.
6. Move the sash to the fully open position, and be
sure the actuator block is at the bottom of the
sash sensor.
7. Attach the linkage to the actuator block by
pinching the upper end of the linkage together
and inserting it through the holes on the side of
the actuator block. See Figure 7.