32
RT-SVX069A-EN
Microchannel (MCHE) Coils
N
NO
OT
TIIC
CE
E
C
Co
oiill 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
cco
oiill d
da
am
ma
ag
ge
e..
D
DO
O N
NO
OT
T u
usse
e a
an
ny
y d
de
ette
errg
ge
en
nttss w
wiitth
h m
miiccrro
occh
ha
an
nn
ne
ell
cco
on
nd
de
en
nsse
err cco
oiillss..
U
Usse
e p
prre
essssu
urriizze
ed
d w
wa
atte
err o
orr a
aiirr O
ON
NL
LY
Y,, w
wiitth
h p
prre
essssu
urre
e
n
no
o g
grre
ea
atte
err tth
ha
an
n 6
60
00
0p
pssii..
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 p
prro
op
pe
err
m
miiccrro
occh
ha
an
nn
ne
ell cco
oiill cclle
ea
an
niin
ng
g p
prro
occe
ed
du
urre
e,, rre
effe
err tto
o R
RT
T--
S
SV
VB
B8
83
3*
*--E
EN
N
Due to the soft material and thin walls of the MCHE
coils, the traditional field maintenance method
recommended for Round Tube Plate Fin (RTPF) coils
does not apply to microchannel coils. Moreover,
chemical cleaners are a risk factor to MCHE due to the
material of the coil. The manufacturer does not
recommend the use of chemical cleaners to clean
microchannel coils. Using chemical cleaners could lead
to warranty claims being further evaluated for validity
and failure analysis.
The recommended cleaning method for microchannel
condenser coils is pressurized water or air with a non-
pinpoint nozzle and an ECU of at least 180 with
pressure no greater than 600 psi. To minimize the risk
of coil damage, approach the cleaning of the coil with
the pressure washer aimed perpendicular to the face of
the coil during cleaning. Optimum clearance between
the sprayer nozzle and the microchannel coil is 1”–3”.
Final Process
For future reference, record the unit data below in the
blanks provided.
Table 13.
Unit data log
Complete Unit Model
Number
Unit Serial Number
Wiring Diagram Numbers
(from unit control panel)
-schematic(s)
-connections
Network ID
