RT-SVX24Q-EN
203
Table 78.
Compressor VFD programming parameter 4-18
Unit Tonnage
200-240V
380-480V
525-600V
90
105%
105%
105%
105
110%
110%
110%
120
110%
110%
110%
130
110%
110%
110%
150
110%
110%
110%
Monthly Maintenance
W
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss V
Vo
olltta
ag
ge
e w
w//C
Ca
ap
pa
acciitto
orrss!!
F
Fa
aiillu
urre
e tto
o d
diisscco
on
nn
ne
ecctt p
po
ow
we
err a
an
nd
d d
diisscch
ha
arrg
ge
e
cca
ap
pa
acciitto
orrss b
be
effo
orre
e sse
errv
viicciin
ng
g cco
ou
ulld
d rre
essu
ulltt iin
n d
de
ea
atth
h o
orr
sse
erriio
ou
uss iin
njju
urry
y..
D
Diisscco
on
nn
ne
ecctt a
allll e
elle
eccttrriicc p
po
ow
we
err,, iin
nccllu
ud
diin
ng
g rre
em
mo
otte
e
d
diisscco
on
nn
ne
eccttss a
an
nd
d d
diisscch
ha
arrg
ge
e a
allll m
mo
otto
orr sstta
arrtt//rru
un
n
cca
ap
pa
acciitto
orrss b
be
effo
orre
e sse
errv
viicciin
ng
g.. F
Fo
ollllo
ow
w p
prro
op
pe
err
llo
occkko
ou
utt//tta
ag
go
ou
utt p
prro
occe
ed
du
urre
ess tto
o e
en
nssu
urre
e tth
he
e p
po
ow
we
err
cca
an
nn
no
ott b
be
e iin
na
ad
dv
ve
errtte
en
nttlly
y e
en
ne
errg
giizze
ed
d.. F
Fo
orr v
va
arriia
ab
blle
e
ffrre
eq
qu
ue
en
nccy
y d
drriiv
ve
ess o
orr o
otth
he
err e
en
ne
errg
gy
y sstto
orriin
ng
g
cco
om
mp
po
on
ne
en
nttss p
prro
ov
viid
de
ed
d b
by
y T
Trra
an
ne
e o
orr o
otth
he
errss,, rre
effe
err tto
o
tth
he
e a
ap
pp
prro
op
prriia
atte
e m
ma
an
nu
uffa
accttu
urre
err’’ss lliitte
erra
attu
urre
e ffo
orr
a
allllo
ow
wa
ab
blle
e w
wa
aiittiin
ng
g p
pe
erriio
od
dss ffo
orr d
diisscch
ha
arrg
ge
e o
off
cca
ap
pa
acciitto
orrss.. V
Ve
erriiffy
y w
wiitth
h a
a C
CA
AT
T IIIIII o
orr IIV
V v
vo
ollttm
me
ette
err
rra
atte
ed
d p
pe
err N
NF
FP
PA
A 7
70
0E
E tth
ha
att a
allll cca
ap
pa
acciitto
orrss h
ha
av
ve
e
d
diisscch
ha
arrg
ge
ed
d..
F
Fo
orr a
ad
dd
diittiio
on
na
all iin
nffo
orrm
ma
attiio
on
n rre
eg
ga
arrd
diin
ng
g tth
he
e ssa
affe
e
d
diisscch
ha
arrg
ge
e o
off cca
ap
pa
acciitto
orrss,, sse
ee
e P
PR
RO
OD
D--S
SV
VB
B0
06
6*
*--E
EN
N..
Before completing the following checks, turn the unit
O
OF
FF
F and lock the main power disconnect switch open.
Filters
Inspect the return air and final filters. Clean or replace
them if necessary. Refer to the Service and
Maintenance chapter for filter information.
Cooling Season
W
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss V
Vo
olltta
ag
ge
e!!
F
Fa
aiillu
urre
e tto
o d
diisscco
on
nn
ne
ecctt p
po
ow
we
err b
be
effo
orre
e sse
errv
viicciin
ng
g cco
ou
ulld
d
rre
essu
ulltt iin
n d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y..
D
Diisscco
on
nn
ne
ecctt a
allll e
elle
eccttrriicc p
po
ow
we
err,, iin
nccllu
ud
diin
ng
g rre
em
mo
otte
e
d
diisscco
on
nn
ne
eccttss b
be
effo
orre
e sse
errv
viicciin
ng
g.. F
Fo
ollllo
ow
w p
prro
op
pe
err
llo
occkko
ou
utt//tta
ag
go
ou
utt p
prro
occe
ed
du
urre
ess tto
o e
en
nssu
urre
e tth
he
e p
po
ow
we
err
cca
an
n n
no
ott b
be
e iin
na
ad
dv
ve
errtte
en
nttlly
y e
en
ne
errg
giizze
ed
d.. V
Ve
erriiffy
y tth
ha
att n
no
o
p
po
ow
we
err iiss p
prre
esse
en
ntt w
wiitth
h a
a v
vo
ollttm
me
ette
err..
☐
Check the unit’s drain pans and condensate piping
to ensure that there are no blockages.
☐
Inspect the evaporator and condenser coils for dirt,
bent fins, etc. If the coils appear dirty, clean them
according to the instructions described in “Coil
Cleaning” later in this section.
☐
Inspect the F/A-R/A damper hinges and pins to
ensure that all moving parts are securely mounted.
Keep the blades clean as necessary.
W
WA
AR
RN
NIIN
NG
G
R
Ro
otta
attiin
ng
g C
Co
om
mp
po
on
ne
en
nttss!!
F
Fa
aiillu
urre
e tto
o d
diisscco
on
nn
ne
ecctt p
po
ow
we
err b
be
effo
orre
e sse
errv
viicciin
ng
g
cco
ou
ulld
d rre
essu
ulltt iin
n rro
otta
attiin
ng
g cco
om
mp
po
on
ne
en
nttss ccu
uttttiin
ng
g
a
an
nd
d sslla
assh
hiin
ng
g tte
ecch
hn
niicciia
an
n w
wh
hiicch
h cco
ou
ulld
d rre
essu
ulltt iin
n
d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y..
D
Du
urriin
ng
g iin
nsstta
alllla
attiio
on
n,, tte
essttiin
ng
g,, sse
errv
viicciin
ng
g a
an
nd
d
ttrro
ou
ub
blle
essh
ho
oo
ottiin
ng
g o
off tth
hiiss p
prro
od
du
ucctt iitt m
ma
ay
y b
be
e
n
ne
ecce
essssa
arry
y tto
o w
wo
orrkk w
wiitth
h lliiv
ve
e a
an
nd
d e
ex
xp
po
osse
ed
d
rro
otta
attiin
ng
g cco
om
mp
po
on
ne
en
nttss.. H
Ha
av
ve
e a
a q
qu
ua
alliiffiie
ed
d o
orr
lliicce
en
nsse
ed
d sse
errv
viicce
e iin
nd
diiv
viid
du
ua
all w
wh
ho
o h
ha
ass b
be
ee
en
n
p
prro
op
pe
errlly
y ttrra
aiin
ne
ed
d iin
n h
ha
an
nd
dlliin
ng
g e
ex
xp
po
osse
ed
d rro
otta
attiin
ng
g
cco
om
mp
po
on
ne
en
nttss,, p
pe
errffo
orrm
m tth
he
esse
e tta
asskkss..
☐
Manually rotate the condenser fans to ensure free
movement and check motor bearings for wear.
Verify that all of the fan mounting hardware is tight.
☐
Verify that all damper linkages move freely;
lubricate with white grease, if necessary.
☐
Check supply fan motor bearings; repair or replace
the motor as necessary.
☐
Check the fan shaft bearings for wear. Replace the
bearings as necessary.
N
No
otte
e:: These bearings are considered permanently
lubricated for normal operation. For severe
dirty applications, if relubrication becomes
necessary, use a lithium based grease. See
for recommended greases.
IIm
mp
po
orrtta
an
ntt:: The bearings are manufactured using a
special synthetic lithium-based grease
designed for long life and minimum
relube intervals. Over lubrication can be
just as harmful as not enough.
☐
Use a hand grease gun to lubricate these bearings;
add grease until a light bead appears all around the
seal. Do not over lubricate! After greasing the
bearings, check the setscrews to ensure that the
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