Figure 72: Sliding low CFM ERW: Back
Figure 73: Sliding low CFM ERW: Front
Remove wheel segments
WARNING
Remove/install opposing wheel segments to evenly
distribute the weight. This will minimize wheel
imbalance and unwanted rotation during service.
Failure to maintain control of the wheel rotation while
removing/installing segments can cause severe injury
to hands. Always close and secure retaining latches
on wheel segments before rotating the wheel.
WARNING
Before servicing, turn off the main disconnect to the
unit and use site specific lockout-tag out procedure.
1. Access the wheel and slide the wheel frame
out of its cabinet.
2. From the pulley side, rotate the wheel
segment that will be removed to the top of
the wheel.
3. Use a flathead screwdriver to unlock and
open the two segment retaining latches at the
outer corners of the segment being removed.
4. Use a 3/16 in. Allen wrench to remove the
nose bolt securing the segment to the hub
plate.
5. Slide out the outer portion of the wheel
segment before disengaging the nose.
Note:
A flathead screwdriver may be
used for segment removal, being careful
not to bend the segment frame or wheel
rim.
6. Upon removing the wheel segment, close
both segment retaining latches.
WARNING
The wheel will now be unbalanced.
7. Slowly rotate the wheel 180° to remove the
opposite wheel segment in order to rebalance
the wheel.
8. Remove the remaining wheel segments by
repeating the previous steps.
Tempmaster
®
Omni™ Premier 25 Ton to 80 Ton Rooftop Units Installation and Maintenance Guide
103
Tempmaster
