– 27 –
8-2. Outdoor Unit (Inverter Assembly)
220–240 V
~
50Hz
MICR
O-COMPUTER BLOCK DIA
GRAM
D
ri
v
e
r
c
ir
c
u
it
o
f
P
.M
.V
.
Indoor unit
send/receive
circuit
R
e
la
y
c
ir
c
u
it
N
o
is
e
F
ilt
e
r
C
o
n
v
e
rt
e
r
(AC
→
DC)
C
lo
c
k
fr
e
q
u
e
n
c
y
4
M
H
z
H
ig
h
P
o
w
e
r
fa
c
to
r
C
o
rr
e
c
tio
n
c
ir
c
u
it
In
p
u
t
c
u
rr
e
n
t
s
e
n
s
o
r
• PWM synthesis function
• Input current release control
• IGBT over-current detect control
• Outdoor fan control
• High power factor correction control
• Inverter output frequency control
• A/D converter function
• P.M.V. control
• Discharge temp. control
• 4-way valve control
• Signal communication to indoor unit
P.M.V.
: Pulse Motor Valve
M.C.U. : Micro Control Unit
M.C.U
For INDOOR UNIT
4-way valve
P.M.V.
Inverter
(DC
→
AC)
Gate drive
circuit
Gate drive
circuit
Inverter
(DC
→
AC)
H
e
a
t
e
x
c
h
a
n
g
e
r
temp.sensor (TE)
Suction temp.
sensor (TS)
Outdoor air
te
m
p
.
s
e
n
s
o
r
(T
O
)
Discharge
te
m
p
.
s
e
n
s
o
r
(T
D
)
Outdoor
Fan motor
220
−
230V ~60Hz
MCC5009 (P
.C.B)
OUTDOOR UNIT
Current
detect
Current
detect
Compressor
Summary of Contents for RAS-18SAV-E
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