2. outdoor unit (inverter assembly), Micr o-computer block dia gram – Toshiba CARRIER RAS-15LKV-UL User Manual
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8-2. Outdoor Unit (Inverter Assembly)
208/230-1-60
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
Relay
circuit
Noise
Filter
Converter
(AC
→
DC)
Clock
frequency
4MHz
High Power
factor Correction
circuit
Input current
sensor
• 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)
Outdoor
Fan motor
Compressor
MCC5009 (P
.C.B)
OUTDOOR UNIT
Current
detect
Current
detect
FILE NO. SVM-10020