8-2. Outdoor Unit (Inverter Assembly)
220–240V
,
~
50Hz
MICR
O-COMPUTER BLOCK DIA
GRAM
Driver circuit of P.M.V.
Heat exchanger temp.sensor
Suction temp.
sensor
Outdoor air temp. sensor
Discharge temp. sensor
Indoor unit send/receive
circuit
Driver
circuit
Noise Filter
Converter (AC
→
DC)
Clock
frequency
4MHz
High Power
factor Correction
circuit
High current
Detector
P.M.V.
: Pulse Mo
dulating
Valve
M.C.U. : Micro Control Unit
I.P.M. : Intelligent Power Module
For INDOOR UNIT
4-way valve
P.M.V.
Inverter
(DC
→
AC)
Inverter
(DC
→
AC)
Outdoor Fan motor
Compressor
WP-0
44
(P
.
C
.
B)
OUTDOOR UNIT
Current detect
Current detect
M.C.U
PWM synthesis functio
n
Input current release contr
ol
I
PM
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
Heater Cord
Driver
circuit
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