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EDUS281008
Installation of outdoor unit
Installation of indoor / outdoor unit
55
2
3PA60114-14Y
15
English
Transmission wiring connection procedure
7-4
If an excessive force is applied while connecting a cable
•
to the terminal block on the PC board, the PC board may
be damaged.
IN/D
OUT/D
F1 F2 F1 F2
L1
L2
F
1
IN/D
OUT/D
F
2
F
1
F
2
F1 F2
U
s
e the co
n
ductor
of
s
heathed w
i
re
(2 w
i
re) (
n
o polar
i
ty)
I
n
door u
ni
t
CAUTION
Fo
r
lo
w
-nois
e
op
era
tion, it is n
e
c
e
ss
ar
y to inst
a
ll th
e
option
a
l
•
“Ext
er
n
a
l cont
r
ol
ada
pto
r
fo
r
out
d
oo
r
unit”.
Fo
r
de
t
a
ils, s
ee
th
e
inst
a
ll
a
tion m
a
nu
a
l
a
tt
a
ch
ed
to th
e
ada
pto
r
.
Caution on the wiring length between units
Make sure to observe the restrictions below. If they are
not observed, transmission error may occur.
M
a
ximum
w
i
r
ing l
e
ngth: 3280 ft.
Cautions on the wiring between units
Ne
v
er
conn
e
ct 208/230V to th
e
t
er
min
a
l block fo
r
th
e
t
ra
ns-
•
mission
w
i
r
ing.
Doing so
w
ill b
rea
k th
e
e
nti
re
syst
e
m.
Th
e
t
ra
nsmission
w
i
r
ing f
r
om th
e
in
d
oo
r
unit must b
e
con-
•
n
e
ct
ed
to th
e
F1/F2 (TO I
N
/D U
N
IT) t
er
min
a
ls on th
e
PC
bo
ard
in th
e
out
d
oo
r
unit.
∗
M
a
k
e
su
re
to us
e
sh
ea
th
ed
t
w
o-co
re
c
a
bl
e
s of AWG18-16 in
th
e
w
i
r
ing sho
w
n
a
bov
e
.
∗
All cables used in the wiring between the units should
be procured on the site.
CHECKS AFTER COMPLETION OF
8.
WORK
After completing the work, make sure to confi rm the
following items:
Conn
e
ction of
dra
in piping
a
n
d
re
mov
a
l of t
ra
nspo
r
t fi ttings:
1.
R
e
f
er
to “
5. CAUTIONS ON INSTALLATION
”.
Conn
e
ction of po
wer
supply
w
i
r
ing
a
n
d
tight
e
ning of sc
rew
s:
2.
R
e
f
er
to “
7-3 Power supply wiring connection proce-
dure
”.
Conn
e
ction of t
ra
nsmission
w
i
r
ing
a
n
d
tight
e
ning of sc
rew
s:
3.
R
e
f
er
to “
7-4 Transmission wiring connection proce-
dure
”.
F
ree
zing conn
e
ction of
re
f
r
ig
era
nt piping
4.
R
e
f
er
to “
6. REFRIGERANT PIPING WORK
”.
Piping siz
e
a
n
d
h
ea
t insul
a
tion:
5.
R
e
f
er
to “
6-1 Selection of piping material
”, “
6-5 Heat
insulation of the piping
”.
Ch
e
ck of stop v
a
lv
e
:
6.
Confi
r
m th
a
t th
e
stop v
a
lv
e
is op
e
n on both th
e
liqui
d
lin
e
a
n
d
g
a
s lin
e
.
R
e
co
rd
of
a
mount of
add
ition
a
l
re
f
r
ig
era
nt:
7.
R
e
co
rd
th
e
a
mount on th
e
l
a
b
e
l stick
ed
on th
e
b
a
ck of th
e
f
r
ont p
a
n
e
l.
M
ea
su
re
m
e
nt of insul
a
tion in m
a
in po
wer
ci
r
cuit:
8.
Us
e
th
e
m
e
g
a
t
e
st
er
fo
r
500 V.
•
Do not us
e
a
ny m
e
g
a
t
e
st
er
fo
r
lo
w
volt
a
g
e
e
l
e
ct
r
ic ci
r
cuits
•
e
xc
e
pt 230 V.
(Wi
r
ing b
e
t
wee
n th
e
out
d
oo
r
unit
a
n
d
th
e
in
d
oo
r
unit)
CAUTION
<To piping t
e
chnici
a
n>
M
a
k
e
su
re
to op
e
n th
e
stop v
a
lv
e
a
ft
er
fi nishing th
e
piping
•
w
o
r
k.
(Op
era
ting th
e
a
i
r
con
d
ition
er
w
ith th
e
stop v
a
lv
e
shut m
a
y
da
m
a
g
e
th
e
comp
re
sso
r
.)
TEST OPERATION PROCEDURE
9.
A crankcase heater is mounted for smooth startup. Make
sure to turn on the power 6 hours before starting opera-
tion for supplying the power to the crankcase heater.
WARNING
M
a
k
e
su
re
to clos
e
th
e
out
er
p
a
n
e
l b
e
fo
re
l
ea
ving th
e
•
out
d
oo
r
unit in th
e
po
wer
O
N
st
a
tus.
To
a
voi
d
inju
r
y,
a
l
wa
ys m
a
k
e
su
re
th
a
t th
e
ov
er
cu
rre
nt
•
p
r
ot
e
ctiv
e
de
vic
e
on th
e
po
wer
supply p
a
n
e
l of th
e
inst
a
ll
a
-
tion is s
w
itch
ed
off b
e
fo
re
d
oing
a
ny
w
o
r
k.
Cautions before turning on the power
Put the insulating cover securely onto the electric parts box.
•
After turning on the power, check the settings and LED
•
indicators on the PC board (A1P) in the outdoor unit
through the opening of the insulating cover.
Power on and check operation
9-1
M
a
k
e
su
re
to p
er
fo
r
m th
e
ch
e
ck op
era
tion
a
ft
er
inst
a
ll
a
tion.
•
(If th
e
a
i
r
con
d
ition
er
is op
era
t
ed
using th
e
in
d
oo
r
re
mot
e
cont
r
oll
er
w
ithout p
er
fo
r
ming th
e
ch
e
ck op
era
tion, th
e
m
a
l-
function co
de
“U3” is
d
ispl
a
y
ed
in th
e
in
d
oo
r
re
mot
e
cont
r
ol-
l
er
,
a
n
d
no
r
m
a
l op
era
tion is
d
is
a
bl
ed
.)
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