– 33 –
220–240 V ~50Hz
220 V ~60Hz
CONT
ROL
BLOK DIAGRAM (Outdoor unit)
Driver circuit of P.M.V.
Noise
filter
Relay
RY701
Converter
(AC
→
DC)
Input current
sensor
4-way valve
A unit
P.M.V.
Unit A
send/receive
circuit
Unit B
send/receive
circuit
B unit
P.M.V.
Inverter
(DC
→
AC)
Gate drive
circuit
Gate drive
circuit
Inverter
(DC
→
AC)
Outdoor fan motor
Compressor
MCC-5015 (SUB P.C.B)
MCC-5009 (SUB P.C.B)
Current
detect
Current
detect
M.C.U
•
Inverter output frequency control
•
A
/D converter function
•
P
.M.V. control
•
D
ischarge temp. control
•
Error displey
•
Signal communication to MCU
M.C.
•
P
WM synthesis function
•
Input current release control
•
IGBT over-current detect control
•
Outdoor fan control
•
High power factor correction control
•
S
ignal communication to MCU
Gas side pipe
temp. sensor
(unit B) (TGb)
Gas side pipe
temp. sensor
(unit A) (TGa)
Outdoor Heat-
exchanger temp.
sensor (TE)
Discharge temp.
sensor (TD)
Suction temp.
sensor (TS)
Outdoor air temp.
sensor (TO)
P.M.V.
: Pulse Motor Valve
PWM
: Pules Width Modulation
IGBT
: Insulated Gate Bipolar Transistor
*1
: Heat Pump Model Only
High power factor
correction circuit
*1
*1
8-2. Outdoor Unit (Inverter Assembly)
RAS-M14GAV-E, RAS-M18GAV-E (Heat pump models)
RAS-M14GACV-E, RAS-M18GACV-E (Cooling only models)
