Mitsubishi Heavy Industries HMK60, Installation Manual

Page: 237 / 288

31
Electrical installation
Connection between controller and indoor unit
HSB140
Signal cable is connected between controller and indoor unit
with screened 3 core cable for HSB140. Choose correct
terminal according to the type of controller as shown below.
<HSB140 with RC-HY20>
Connect the port 19(A), 20(B) and 21(GND) on X2 terminal
on RC-HY20 to the port 1, 2 and 3 on X4 terminal on AA23
board on HSB140 respectively.
6
5
4
3
2
1
A
B
GND
SMO
A
B
GND
A
B
GND
19
20
21
18
X2
RC-HY20
AA23-X4
HSB140
RC-HY20
X2
<HSB140 with RC-HY40>
Connect the port 1(A), 2(B) and 3(GND) on X4 terminal on
AA5 board on RC-HY40 to the port 1, 2 and 3 on X4 terminal
on AA23 board on HSB140 respectively.
In case several systems are connected to one controller, connect
the port 4, 5 and 6 on X4 terminal on AA23 board on HSB140
close to the controller to the port 1, 2 and 3 on X4 terminal on
AA23 board on another HSB140.
1 2 3
A D N G B
4 5
SMO
6
5
4
3
2
1
A
B
GND
A
B
GND
6
5
4
3
2
1
A
B
GND
A
B
GND
HSB140 HSB140
AA5-X4
AA5-X4
AA23-X4
AA23-X4
RC-HY40
ON
1 2 3 4 5 6 7 8
-X9
-X2
24
20
21
22
23
15
16
17
18
19
10
11
12
13
14
5
6
7
8
9
1
1 E P E P L N
1 2 3 4 5
2
1 2
3 4 5 6 7 8 9
2
3
4
-X8
-X4
-X10 -X1
RC-HY40
Connection between controller and circulation
pump (GP12)
HSB140
For HSB140, circulation pump (GP12) is installed outside of
indoor unit. Choose correct terminal according to the type of
controller.
<HSB140 with RC-HY20>
Connect the port 5, 6 and 7 on X4 terminal on AA2 board on
RC-HY20/40 to the port PE, N and L on circulation pump
respectively. Control signal cable is connected between the
port 1 and 2 on X2 terminal on RC-HY20 and PWM and GND
on circulation pump respectively as shown below.
4 5 6 7 8 9
SMO
Externt
PE
L
N
External
RC-HY 20
AA2-X4
EB101-GP12
2
1
4
3
SMO
Externt
External
RC-HY 20
X2
EB101-GP12
PWM
GND
LEK
L N 1 1 0 2 3 4 PE
AA2-X4
RC-HY20
RC-HY20
X2