Mitsubishi Heavy Industries FDCW60VNX-W, Installation Manual

Page: 33 / 92

31
Electrical installation
<HSB60 with RC-HY40>
t XBZWBMWFGPS)FBUJOH)PUXBUFS 2/
Refer to 3-way valve connection for HSB60 with RC-HY20.
t XBZWBMWFGPS)FBUJOH$PPMJOH 2/
QN12 can be controlled with potential free variable relay.
Connect L and Control wire on 3-way valve to the port C and
NO on X7 terminal on AA3 board on RC-HY40 respectively.
Also, connect L and N wire to power supply as shown below.
C N O N C
Externt
SMO
L
L
N
N
External
RC-HY 40
AA3-X7
RC-HY40
AA3-X7
QN12
CAUTION
The relay outputs may be subjected to a max
load of 2A at resistive load (230V AC).
Connection between controller and 3-way valve
(QN10/QN12)
3-way valve is used for switching heating / hot water
production (QN10), or switching heating / cooling (QN12).
Install appropriate valves according to the system structure on
site.
HSB60
HSB60 is not equipped with 3-way valve. Install the valves on
right position according to the diagram and connect wires on
appropriate port according to the type of controller.
<HSB60 with RC-HY20>
t XBZWBMWFGPS)FBUJOH)PUXBUFS 2/
Connect the N, Control and L wire on 3-way valve to the port
2, 3 and 4 on X4 terminal on AA2 board on RC-HY20/40
respectively as shown below.
1 2 3 4 5 6
SMO
Externt
L
N
External
RC-HY20/40
AA2-X4
QN10
LEK
L N 1 1 0 2 3 4 PE
AA2-X4
RC-HY20/40
t XBZWBMWFGPS)FBUJOH$PPMJOH 2/
QN12 can be controlled with potential free variable relay.
Connect L and Control wire on 3-way valve to the port 15 and
16 on X4 terminal on AA2 board on RC-HY20 respectively.
Also, connect L and N wire to power supply as shown below.
Additional setting is necessary in menu 5.4. See Menu system
for details.
4 1 5 1 6 1 7 1
SMO
Externt
L
L
N
N
External
RC-HY 20
AA2-X4
LEK
L N 1 1 0 2 3 4 PE
AA2-X4
RC-HY20
QN12
CAUTION
The relay outputs can have a max load of 2 A
at resistive load (230V AC).