Toshiba RAS-18UAX4 - Control Block Diagram (Multiple RAS Models)

− 29 −
FILE NO. SVM-05016
6-2. RAS-18NKD-E4 / RAS-18UA-E4, RAS-18NKDX4 / RAS-18UAX4
RAS-18NKD-AR4 / RAS-18UA-AR4, RAS-18NKDX4-T2 / RAS-18UAX4-T2
RAS-24NKD-AR4 / RAS-24UA-AR4, RAS-24NKDX4-T / RAS-24UAX3-T1
REMOTE CONTROL
Heat Exchanger Sensor
Relay RY04
Outdoor Unit
Outdoor unit
ON/OFF Signal
Relay Driver
Indoor Unit Control Panel
Temperature Sensor
Infrared Rays Signal Receiver
Initiallizing Circuit
Clock Frequency
Oscillator Circuit
Power Supply
Circuit
Noise Filter
From Outdoor Unit
220 ~ 240 V AC 50 Hz
(Except RAS-24NKDX4-T / RAS-24UAX3-T1,
RAS-18NKDX4-T2 / RAS-18UAX4-T2 model)
220 V AC 50 Hz (For RAS-24NKPX4-T / RAS-24UAX3-T1, RAS-18NKDX4-T2 / RAS-18UAX4-T2 model)
M.C.U.
Functions

• Louver Control

• 3-minute Delay at Restart for Compressor

• Motor Revolution Control

• Processing

• Timer
Louver ON/OFF Signal
Louver Driver
Operation
Display
Timer
Display
Filter Sign
Display
Fan Only
Sign Display
Indoor
Fan Motor
Hi Power
Sign Display
Louver Motor
Infrared
Rays
Remote
Control
(Temperature Processing)
Air Purifier
Unit
Micro
Switch
RAS-24NKD-E4 / RAS-24UA-E4, RAS-24NKDX4 / RAS-24UAX4
Operation ( )
Operation ( )
Remote Control
Operation Mode Selection
AUTO, COOL, DRY, FAN ONLY
Temperature Setting
Fan Speed Selection
ON TIMER Setting
OFF TIMER Setting
Louver Auto Swing
Louver Direction Setting
ECO
Hi power
Filter Reset
Infrared Rays
SLEEP
Air Purifier
PAP
Sign Display