RT-SVX24Q-EN
169
segment into place. Be careful not to bend the
wheel frame or the segment frame with the
screwdriver.
5. Reinstall forked segment retainer(s)
NNoottee:: Only applies when there is an adjacent
segment in place.
6. Close each segment retainer latch under the
segment retaining catch.
7. Rotate the wheel and repeat this sequence with the
remaining segments.
Removing and replacing the segments with a spare
set can be accomplished more quickly. Remove the
dirty segment, replace it with a clean segment, then
move to the next segment.
Filtration
WWAARRNNIINNGG
HHaazzaarrddoouuss VVoollttaaggee!!
FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouulldd
rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..
DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee
ddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerr
lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr
ccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. VVeerriiffyy tthhaatt nnoo
ppoowweerr iiss pprreesseenntt wwiitthh aa vvoollttmmeetteerr..
Galvanized steel permanent filters are provided to
prevent debris from entering the energy wheel section.
The return air filters are mounted in a filter rack
underneath the energy recovery wheel, and are
accessible from either side by means of the double
access doors. The outside air filter rack is attached to
the energy recovery cassette. Use the unit filter /
evaporator coil access doors to service the energy
recovery outside air filters.
1. Disconnect all electrical power.
2. Remove all filter media from the vertical filter rack
providing air filtration for the unit evaporator coil.
3. Remove the sheet metal screws in the hinged
access panel beneath the bypass damper assembly.
4. Rotate the access panel downwards.
5. Reach in past the damper wall to access the flexible
filter puller(s). Pull them towards the evaporator
coil enough to reach the second filter in each slot of
the filter rack. Refer to Table 58, p. 169 for filter
information.
Table 58. ERW Filter Information
Galvanized
Steel Filter
Info
90-118 Ton
Low CFM
ERW Units
(in.)
90-162 Ton
Low CFM
ERW Units
(in.)
90-162 Ton
Standard
CFM ERW
Units (in.)
RA Filters
(size,
number)
24x24x1, 10 24x24x1, 10 24x24x1, 10
FA Filters
(size, number
224x24x1, 8 24x24x1, 6 24x24x1, 8
12x24x1, 2
NNoottee:: Inspect these filters monthly and clean them as
necessary.
Bearing and Motor Lubrication
The wheel drive motor and wheel support shaft
bearings are permanently lubricated and no further
lubrication is necessary.
Service and Repair
Drive Belt Replacement
The drive belt is a urethane stretch belt designed to
provide constant tension throughout the life of the belt.
No periodic adjustment is required. Inspect the belt
annually for proper tracking and tension. A properly
tensioned belt will turn the wheel immediately, with no
visible slippage, when power is applied.
WWAARRNNIINNGG
HHaazzaarrddoouuss VVoollttaaggee!!
FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouulldd
rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..
DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee
ddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerr
lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr
ccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. VVeerriiffyy tthhaatt nnoo
ppoowweerr iiss pprreesseenntt wwiitthh aa vvoollttmmeetteerr..
WWAARRNNIINNGG
RRiisskk ooff EEnneerrggyy WWhheeeell CCoollllaappssiinngg!!
FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd ccaauussee
tthhee eenneerrggyy wwhheeeell ttoo ccoollllaappssee uunnddeerr tthhee
tteecchhnniicciiaann’’ss wweeiigghhtt wwhhiicchh ccoouulldd rreessuulltt iinn sseevveerree
iinnjjuurryy..
BBeeffoorree llaayyiinngg aaccrroossss tthhee eenneerrggyy wwhheeeell,, aadddd eexxttrraa
ssuuppppoorrtt bbyy ppllaacciinngg aa rriiggiidd bbooaarrdd aaccrroossss tthhee ssppaann ooff
tthhee eenneerrggyy wwhheeeell ccaasssseettttee..
1. Disconnect all electrical power.
2. Confirm the model number on the belt replacement
kit matches the model number on the label by the
motor pulley. Remove all remnants of the old belt.
3. Uncoil the belt as necessary. The belt must not twist
when being feed around the wheel rim.
UUnniitt SSttaarrttuupp