RT-SVX073A-EN
147
WARNING
Toxic Hazards!
Failure to follow instructions below could result in
death or serious injury.
Do not use an energy wheel in an application where
the exhaust air is contaminated with harmful toxins or
biohazards.
The two access doors are accessible from either side of the
rooftop. The horizontally oriented energy wheel cassette is
permanently installed in the section. The individual
segments of the energy wheel are removable for cleaning
or replacement. Two additional access doors are provided
for service access into the filter / evaporator section.
Operation
NOTICE
Energy Wheel Motor Failure!
Failure to follow instructions below could result in
failure of the energy wheel motor
Do not install a variable frequency drive (VFD) to
control the energy wheel speed.
WARNING
Confined Space Hazards!
Failure to follow instructions below could result in
death or serious injury.
Do not work in confined spaces where refrigerant or
other hazardous, toxic, or flammable gas may be
leaking. Refrigerant or other gases could displace
available oxygen to breathe, causing possible
asphyxiation or other serious health risks. Some
gases may be flammable and/or explosive. If a leak in
such spaces is detected, evacuate the area
immediately and contact the proper rescue or
response authority.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is
present with a voltmeter.
WARNING
Rotating Components!
Failure to disconnect power before servicing could
result in rotating components cutting and slashing
technician which could result in death or serious
injury.
During installation, testing, servicing and
troubleshooting of this product it may be necessary
to work with live and exposed rotating components.
Have a qualified or licensed service individual who
has been properly trained in handling exposed
rotating components, perform these tasks.
WARNING
Rotating Components!
Failure to disconnect power before servicing could
result in rotating components cutting and slashing
technician which could result in death or serious
injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized.
Figure 96. Segment retainers
ERW Startup
1. Turn the energy wheel clockwise (as viewed from the
pulley side) by hand to verify that the wheel turns freely
through a full rotation.
2. Confirm that all wheel segments are fully engaged in
the wheel frame and that the segment retainers are
completely fastened. See Figure 97, p. 149.
3. Manually rotate the energy wheel clockwise through
several rotations to confirm the seal adjustment and
proper belt tracking on the wheel rim. Correct belt
tracking is approximately midway between the seal
plate and the outer edge of the rim.
Unit Startup
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