– 85 –
<1-way Cassette (YH) Type, Floor Standing Type, Concealed Duct High Static Pressure Type,
Floor Standing Concealed Type, Floor Standing Cabinet Type, Fresh Air Intake Type>
RS
U1
U2
RS
U1 U2
DC5V
DC5V
CN2 CN1
DC5V
EEPROM
HA
CPU
CPU
DC5V
DC12V
DC20V
X
Y
B
A
B
A
AB
L
NU1
U1 U2
U2
EEPROM
Power
supply
circuit
Function setting
Key switch
Remote controller
communication circuit
Display
LCD
Display
LED
*3
Rechargeable
battery
LCD
driver
Display
LCD
Function setting
Key switch
Power
supply
circuit
Central
control
remote
controller
(optional)
(In case of
AI-NETWORK)
Switch setting
Power supply circuit
Power supply circuit
Remote controller
communication
circuit
AI-NET
communication
circuit
Transformer
Indoor control P.C. board (MCC-1403)
CPU
H8/3687
PMV
Louver
motor
Drain
pump
Indoor
fan
motor
*
Not applicable to
concealed duct high
static pressure type
* 1-way Type only
*
Not applicable to concealed
duct high static pressure type
*
Not applicable to 1-way
air discharge cassette
type (compact)
Driver
Remote
controller
communication
circuit
CPU
H8/3039
TA sensor
TCI sensor
TC2 sensor
TCJ sensor
Float input
In operation
Alarm
Getting ready
Thermostat ON
COOL
HEAT
FAN
AC
synchronization
signal input circuit
BUS
communication
circuit
External
output
Indoor/outdoor communication
Outdoor
unit
Power source
1Ø 220-240V, 50Hz
1Ø 220V, 60Hz
Outdoor
unit
Outdoor
unit
Power
source
Power
source
Sameas left
*2
Sameas left
*2
#2 #3
Up to 8 units can be
connected. *1
Fan motor
relay circuit
Transformer
“1:1 model” connection interface (optional)
Indoor unit
#1
“1:1 model”
connection
interface P.C.
board
(MCC-1401)
Wired (Simple) header remote controller
(up to 2 units)
Schedule timer
*1 Only up to 7 units if a
“1:1 model” connection
interface is installed with
2 wired (Simple) remote
controllers connected.
*2 The “1:1 model” connection
interface can only be
installed in one unit.
*3 A schedule timer cannot
be connected to a sub
remote controller.
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