68
AC-SVX002C-EN
Maintenance
W
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss V
Vo
olltta
ag
ge
e -- P
Prre
essssu
urriizze
ed
d
F
Flla
am
mm
ma
ab
blle
e F
Fllu
uiid
d!!
F
Fa
aiillu
urre
e tto
o ffo
ollllo
ow
w a
allll e
elle
eccttrriicca
all ssa
affe
etty
y p
prre
ecca
au
uttiio
on
nss
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
Do
o n
no
ott o
op
pe
erra
atte
e cco
om
mp
prre
esssso
orr w
wiitth
ho
ou
utt tte
errm
miin
na
all b
bo
ox
x
cco
ov
ve
err iin
n p
plla
acce
e..
T
Th
he
e m
mo
otto
orrss iin
n tth
he
e cco
om
mp
prre
esssso
orrss h
ha
av
ve
e ssttrro
on
ng
g
p
pe
errm
ma
an
ne
en
ntt m
ma
ag
gn
ne
ett m
mo
otto
orrss a
an
nd
d h
ha
av
ve
e tth
he
e cca
ap
pa
ab
biilliitty
y
tto
o g
ge
en
ne
erra
atte
e v
vo
olltta
ag
ge
e d
du
urriin
ng
g ssiittu
ua
attiio
on
nss w
wh
he
en
n tth
he
e
rre
effrriig
ge
erra
an
ntt cch
ha
arrg
ge
e iiss b
be
eiin
ng
g m
miig
grra
atte
ed
d.. T
Th
hiiss
p
po
otte
en
nttiia
all w
wiillll b
be
e p
prre
esse
en
ntt a
att tth
he
e m
mo
otto
orr tte
errm
miin
na
allss
a
an
nd
d a
att tth
he
e o
ou
uttp
pu
utt o
off tth
he
e v
va
arriia
ab
blle
e ssp
pe
ee
ed
d d
drriiv
ve
ess iin
n
tth
he
e p
po
ow
we
err p
pa
an
ne
ell..
B
Be
effo
orre
e rre
em
mo
ov
viin
ng
g cco
om
mp
prre
esssso
orr tte
errm
miin
na
all b
bo
ox
x cco
ov
ve
err
ffo
orr sse
errv
viicciin
ng
g,, o
orr sse
errv
viicciin
ng
g p
po
ow
we
err ssiid
de
e o
off cco
on
nttrro
oll
p
pa
an
ne
ell,, C
CL
LO
OS
SE
E C
CO
OM
MP
PR
RE
ES
SS
SO
OR
R D
DIIS
SC
CH
HA
AR
RG
GE
E
S
SE
ER
RV
VIIC
CE
E V
VA
AL
LV
VE
E a
an
nd
d 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.. D
Diisscch
ha
arrg
ge
e a
allll m
mo
otto
orr
sstta
arrtt//rru
un
n cca
ap
pa
acciitto
orrss.. F
Fo
ollllo
ow
w 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.. V
Ve
erriiffy
y w
wiitth
h a
an
n
a
ap
pp
prro
op
prriia
atte
e v
vo
ollttm
me
ette
err tth
ha
att a
allll cca
ap
pa
acciitto
orrss h
ha
av
ve
e
d
diisscch
ha
arrg
ge
ed
d..
T
Th
he
e cco
om
mp
prre
esssso
orr cco
on
ntta
aiin
nss h
ho
ott,, p
prre
essssu
urriizze
ed
d
rre
effrriig
ge
erra
an
ntt.. M
Mo
otto
orr tte
errm
miin
na
allss a
acctt a
ass a
a sse
ea
all a
ag
ga
aiin
nsstt
tth
hiiss rre
effrriig
ge
erra
an
ntt.. C
Ca
arre
e ssh
ho
ou
ulld
d b
be
e tta
akke
en
n w
wh
he
en
n
sse
errv
viicciin
ng
g N
NO
OT
T tto
o d
da
am
ma
ag
ge
e o
orr llo
oo
osse
en
n m
mo
otto
orr
tte
errm
miin
na
allss..
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..
This section describes the basic chiller preventive
maintenance procedures, and recommends the
intervals at which these procedures should be
performed. Use of a periodic maintenance program is
important to ensure the best possible performance and
efficiency.
If unit does not operate properly during inspections,
see Diagnostics chapter.
Recommended Maintenance
Weekly
While unit is running in stable conditions.
1. At AdaptiView™ TD7 or Tracer® TU service tool,
check pressure for evaporator, condenser and
intermediate oil.
2. Observe liquid line sight glass on EXV. The
refrigerant flow through the sight glasses should be
clear. Bubbles in the refrigerant indicate either low
refrigerant charge or excessive pressure drop in the
liquid line. A restriction in the line can sometimes
be identified by a noticeable temperature
differential between the two sides of the restriction.
Frost may often form on the liquid line at this point.
Correct refrigerant charges are shown in the
General Data Tables.
3. Inspect the entire system for unusual operation.
4. Inspect the condenser coils for dirt and debris. If the
coils are dirty, see Condenser Coil Cleaning section
of Maintenance chapter.
N
NO
OT
TIIC
CE
E
C
Co
oiill D
Da
am
ma
ag
ge
e!!
U
Usse
e o
off d
de
ette
errg
ge
en
nttss cco
ou
ulld
d cca
au
usse
e d
da
am
ma
ag
ge
e tto
o cco
oiillss..
D
Do
o n
no
ott u
usse
e d
de
ette
errg
ge
en
nttss tto
o cclle
ea
an
n cco
oiillss.. U
Usse
e cclle
ea
an
n
w
wa
atte
err o
on
nlly
y..
Monthly
1. Perform all weekly maintenance procedures.
2. Record the system subcooling.
3. Record the evaporator superheat.
Annual
1. Perform all weekly and monthly procedures.
2. Check oil level while unit is off. See Maintenance
chapter.
3. Have a qualified laboratory perform a compressor
oil analysis to determine system moisture content
and acid level.
4. Contact a Trane service organization to leak test the
chiller, to check operating and safety controls, and
to inspect electrical components for deficiencies.
5. Clean all water strainers.
N
NO
OT
TIIC
CE
E
H
He
ea
atte
err D
Da
am
ma
ag
ge
e!!
F
Fa
aiillu
urre
e tto
o ffo
ollllo
ow
w iin
nssttrru
uccttiio
on
nss b
be
ello
ow
w cco
ou
ulld
d rre
essu
ulltt iin
n
d
da
am
ma
ag
ge
e tto
o tth
he
e h
he
ea
atte
err..
IIff tth
he
e cch
hiilllle
err e
ev
va
ap
po
orra
atto
orr o
orr e
ev
va
ap
po
orra
atto
orr w
wa
atte
err p
piip
piin
ng
g
iiss d
drra
aiin
ne
ed
d o
off w
wa
atte
err,, tth
he
e e
ev
va
ap
po
orra
atto
orr iim
mm
me
errssiio
on
n
h
he
ea
atte
err m
mu
usstt b
be
e d
de
e--e
en
ne
errg
giizze
ed
d..
6. Clean and repaint any areas that show signs of
corrosion.
7. Clean the condenser coils. See Condenser Coil