–
30
–
8-2. Outdoor Unit (Inverter Assembly)
Dr
iv
er circuit
of PMV
Rela
y
circuit
Cloc
k
frequency
4MHz
Con
v
er
ter
(A
C
→
DC)
In
v
er
ter
(DC
→
AC
)
In
v
er
ter
(DC
→
AC
)
Input current
sensor
High P
o
w
er
factor Correction
circuit
MICR
O-COMPUTER BLOCK DIA
GRAM
F
or INDOOR UNIT
Heat e
xchanger
temp
.sensor
Suction
temp
. sensor
Outdoor air
temp
. sensor
Discharge
temp
. sensor
Indoor unit
send/receiv
e
circuit
Noise
Filter
MCC5009 (P
.C.B)
•
PWM synthesis function
•
Input current release control
•
IGBT o
v
er-current detect control
•
Outdoor f
an control
•
High po
w
er f
actor correction control
•
In
v
er
ter output frequency control
•
A/D con
v
er
ter function
•
PMV control
•
Discharge temp
. control
•
4-w
a
y v
alv
e control
•
Signal comm
unication to indoor unit
PMV
: Pulse Motor
V
alv
e
M.C
.U
.:
Micro Control Unit
Outdoor
F
an motor
Compressor
OUTDOOR UNIT
PMV
4-w
a
y
v
alv
e
Gate dr
iv
e
circuit
Current
detect
Current
detect
Gate dr
iv
e
circuit
M.C
.U
.
FILE NO. SVM-10050-1
220-240V~, 50Hz
220-230V~, 60Hz
220-240V~, 50Hz (RAS-18,22S
A
V
2
-A)
