SCXF-SVX01Q-EN
99
5. Use a steam cleaning machine, starting from the
top of the coil and working downward. Clean the
leaving air side of the coil first, then the entering air
side. Use a block-off to prevent steam from blowing
through the coil and into a dry section of the unit.
6. Repeat step 5 as necessary. Confirm that the drain
line is open following completion of the cleaning
process.
7. Allow the unit to dry thoroughly before putting the
system back into service.
8. Straighten any coil fins that may be damaged with a
fin rake.
9. Replace all panels and parts and restore electrical
power to the unit.
10. Ensure that contaminated material does not contact
other areas of the equipment or building. Properly
dispose of all contaminated materials and cleaning
solutions.
Chemical Cleaning of Condenser and
Economizer Coil
Chemical cleaning removes scale deposits built up by
minerals in the water. For a suitable chemical solution,
consult a water treatment specialist. The condenser
water circuit is composed of copper, steel, and cast
iron. The chemical supply house should approve or
provide all materials used in the external circulating
system, along with the quantity of cleaning material,
duration of cleaning time, and safety precautions
necessary for handling the cleaning agent.
Piping Components
Water Valves
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..
Water valves have a stern packing nut. If there is
evidence of water leakage at the valve stem, proceed as
follows:
1. Remove actuator motor from support plate.
2. Remove shaft coupling.
3. Torque the packing nut to 10-ft.-lbs. of torque.
4. Replace shaft coupling.
5. Replace actuator motor.
Flow Switch
Flow switches have a magnet on the vane assembly
that attracts ferrous particulate may build up on the
magnet to the point that the vane will wedge and not
operate properly. When the flow switch does not
operate, remove and replace.
Maintenance Periodic Checklists
W
WA
AR
RN
NIIN
NG
G
H
Ha
azza
arrd
do
ou
uss S
Se
errv
viicce
e P
Prro
occe
ed
du
urre
ess!!
F
Fa
aiillu
urre
e tto
o ffo
ollllo
ow
w a
allll p
prre
ecca
au
uttiio
on
nss iin
n tth
hiiss m
ma
an
nu
ua
all a
an
nd
d
o
on
n tth
he
e tta
ag
gss,, ssttiicckke
errss,, a
an
nd
d lla
ab
be
ellss cco
ou
ulld
d rre
essu
ulltt iin
n
d
de
ea
atth
h o
orr sse
erriio
ou
uss iin
njju
urry
y..
T
Te
ecch
hn
niicciia
an
nss,, iin
n o
orrd
de
err tto
o p
prro
otte
ecctt tth
he
em
msse
ellv
ve
ess ffrro
om
m
p
po
otte
en
nttiia
all e
elle
eccttrriicca
all,, m
me
ecch
ha
an
niicca
all,, a
an
nd
d cch
he
em
miicca
all
h
ha
azza
arrd
dss,, M
MU
US
ST
T ffo
ollllo
ow
w p
prre
ecca
au
uttiio
on
nss iin
n tth
hiiss m
ma
an
nu
ua
all
a
an
nd
d o
on
n tth
he
e tta
ag
gss,, ssttiicckke
errss,, a
an
nd
d lla
ab
be
ellss,, a
ass w
we
ellll a
ass tth
he
e
ffo
ollllo
ow
wiin
ng
g iin
nssttrru
uccttiio
on
nss:: U
Un
nlle
essss ssp
pe
ecciiffiie
ed
d o
otth
he
errw
wiisse
e,,
d
diisscco
on
nn
ne
ecctt a
allll e
elle
eccttrriicca
all p
po
ow
we
err iin
nccllu
ud
diin
ng
g rre
em
mo
otte
e
d
diisscco
on
nn
ne
ecctt a
an
nd
d d
diisscch
ha
arrg
ge
e a
allll e
en
ne
errg
gy
y sstto
orriin
ng
g
d
de
ev
viicce
ess ssu
ucch
h a
ass 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
n n
no
ott b
be
e iin
na
ad
dv
ve
errtte
en
nttlly
y
e
en
ne
errg
giizze
ed
d.. W
Wh
he
en
n n
ne
ecce
essssa
arry
y tto
o w
wo
orrkk w
wiitth
h lliiv
ve
e
e
elle
eccttrriicca
all cco
om
mp
po
on
ne
en
nttss,, h
ha
av
ve
e a
a q
qu
ua
alliiffiie
ed
d lliicce
en
nsse
ed
d
e
elle
eccttrriicciia
an
n o
orr o
otth
he
err iin
nd
diiv
viid
du
ua
all w
wh
ho
o h
ha
ass b
be
ee
en
n
ttrra
aiin
ne
ed
d iin
n h
ha
an
nd
dlliin
ng
g lliiv
ve
e e
elle
eccttrriicca
all cco
om
mp
po
on
ne
en
nttss
p
pe
errffo
orrm
m tth
he
esse
e tta
asskkss..
Monthly Checklist
The following check list provides the recommended
maintenance schedule to keep the commercial self-
contained equipment running efficiently.
1. Inspect unit air filters. Clean or replace if airflow is
blocked or if filters are dirty.
2. Inspect coils for excess moisture or icing. Icing on
the coils may indicate low airflow supply, restricted
airflow from dirty fins, evaporator frost protection
sensor problems, or a shortage of refrigerant
flowing through the coil.
3. Check that condensate from the evaporator and
economizer coils flows freely through the
condensate piping, traps, drain pan, and drainage
holes. Remove algae and or any airflow
obstructions.
Содержание IntelliPak SCRF 25
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