14
C
N
2
7
C
N
2
8
C
N
2
3
AC-L
AC-N
CN8
C
N
1
7
CN6
XT1
L N
C
N
2
9
EY2
X2
B
A
P
Q
E
L
N
Q
P
E
Y
X
E
GND1
0..10V
-1
0
V+
XP1 XS1
XP2 XS2
XP3 XS3
CN21
CN20
T2H
CS
ENC1
S2
S3
S4
S1
CN13
CN26
CN37
CN16
N L
CN4
CN24
DC FAN
VALVE-N/VALVE-C/VALVE-H
T1
XP4 XS4
XP5 XS5
T2C
FAN
XP6 XS6
XP7 XS7
Figure 5-21 Cabling diagram (unit with inverter motor I-VM; I-VN)
Cable
Iron plastic strip
Positioning
thread buckle
POWER IN
Y/G
Figure 5-20 Wiring diagram (unit with inverter motor I-VM; I-VN)
PUMP
COOL
WATER
VALVE
HOT
WATER
VALVE
COM
H
I.
SPEED
MED
.
SPEED
L
O
W
.
SPEED
POWER IN
C
O
M
Thermostat
POWER IN
ALARM
BLU
RED
ALARM
PUMP
Bi-directional
communication
Wired controller
O
N
/O
F
F
TO CCM.COMM.BUS
MODBUS RTU
TO UPPER UNIT
ON/OFF
0-10V Wired
controller
Infrared Wired
controller
C
D
A
BE
WATER
MAIN BOARD
Green LED
Red LED
Swing
Motor1
Swing
Motor2
HI MED LOW
(1