RT-SVX34R-EN
119
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
shaft is held securely. Make sure that all bearing
braces are tight.
☐
Check the supply fan belt(s). If the belts are frayed
or worn, replace them. Refer to the
for belt replacement and
adjustments.
☐
Check the condition of the gasket around the
control panel doors. These gaskets must fit
correctly and be in good condition to prevent water
leakage.
☐
Verify that all wire terminal connections are tight.
☐
Remove any corrosion present on the exterior
surfaces of the unit and repaint these areas.
☐
Generally inspect the unit for unusual conditions (e.
g., loose access panels, leaking piping connections,
etc.)
☐
Make sure that all retaining screws are reinstalled in
the unit access panels once these checks are
complete.
☐
With the unit running, check and record the
following:
–
ambient temperature
–
compressor oil level (each circuit)
–
compressor suction and discharge pressures
(each circuit)
–
superheat and subcooling (each circuit)
Record this data on an “operator’s maintenance log”
like the one shown in
. If the operating
pressures indicate a refrigerant shortage, measure the
system superheat and system subcooling. For
guidelines, refer to
“Charging by Subcooling,” p. 105
.
IIm
mp
po
orrtta
an
ntt:: Do not release refrigerant to the
atmosphere! If adding or removing
refrigerant is required, the service
technician must comply with all federal,
state and local laws. Refer to general
service bulletin MSCU-SB-1 (latest edition).
Heating 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..
Содержание Voyager Commercial
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