IU-19
DUAL, TRIPLE, POKER DC Inverter : 2. Indoor Units
Multi Liberty
DC Inverter
Dedicated connectors (Units “A”, “B”, “C”, “D”) for “PLUG”, on Outdoor Unit
Note: The above diagram refers to HCKU 706 Indoor Unit X4 (4 Indoor Units can be connected).
L
N
Ground
Ground
Outdoor Unit’s terminal block
Power Supply:
1-Phase, 220~240V,
50Hz
Female for “plug”
from Indoor Unit
“A”
Female for “plug”
from Indoor Unit
“B”
Female for “plug”
from Indoor Unit
“C”
INDOOR UNIT “A”:
4-wires cable with
“plug”
(lenght: 6m)
INDOOR UNIT “B”:
4-wires cable with “plug”
(lenght: 6m)
INDOOR UNIT “C”:
4-wires cable with “plug”
(lenght: 6m)
4. Wiring Diagrams of HTFU (206, 266, 356, 536) X Multi Liberty Indoor Units
Femzale for “plug”
from Indoor Unit
“D”
INDOOR UNIT “D”:
4-wires cable with “plug”
(lenght: 6m)
CN3
CN11
CN13
CN2
CN9
CN4
FM
Indoor Unit’s PCB
White
C
Red
Black
L N
Display Board
Transformer
XT1
CN1
XP8
XS8
XP6
XS6
XS7
XP7
XS5
XP5
White
Black
Yellow
/
Green
White
SW1 SW2
CN6
CN10
CN14
S
S
CN7
Condensate
drain pump
M
Function of microswitches on PCB
SW2
Capacity
536
356
ON
1
2
ON
1
2
ON
1
2
ON
1
2
SW2
266
SW2
206
SW2
Compensation value of
temperature in Heating
SW1
+ 6°C
+ 4°C
SW1
+ 2°C
SW1
0°C
SW1
Value
Microswitch
Microswitch
Model
Yellow
B
ro
w
n
Black B
lu
e
Ye
llo
w
/
G
re
en
Yellow/
Green
Room temperature
sensor (T1)
Heat exchanger’s
temperature
sensor (T2)
Flap motor
Indoor
fan motor
ON
1
2
ON
1
2
ON
1
2
ON
1
2
[TO DEDICATED
CONNECTOR ON
OUTDOOR UNIT]
“PLUG”
Float switch
2