Mitsubishi Electric CITY MULTI PFD-P250VM-E Manuel D'installation page 4

7
[Fig. 7.3.1]
<A> Model 250
I Control box
B External I/O board
A Transformer
E Connect trasmission
line to outdoor unit
C Transmission line D Fix in place after
terminal block connecting writing.
[Fig. 7.3.2]
Connection changes to be made when connected to a 2-refrigerant circuit
When connected to
a 2-refrigerant circuit
6 5 4 3 2 1
Remove the LEV2B connector
from the adapter board, and
connect it to CN60 on No. 2 board.
6
5
LEV2
4
3
2
1
External input-output
board (IFB)
When using the external input function on the
indoor unit that is connected to a two-refrigerant
AC
circuit, connect the short-circuit plate that is
TB23
A1
supplied with the unit to the appropriate terminals
A
A2
on the external input-output board.
BC
TB21
B1
B
B2
4
<B> Model 500
J Bottom panel
H Fuse
G Earth
F To power supply
B External I/O board
When connected to
a 2-refrigerant circuit
CN60
No. 2 board
1
2
CN3A
3
2
CN2M
1
Connect the connectors to
CN3A and CN2M on No. 2 board.
The case of with-voltage input ... A
The case of no-voltage input .... B
7.3
A Transformer
D No.2 Transmission line
terminal block
(Note: Connect to top
terminal block)
Switch setting changes to be made when connected to a 2-refrigerant circuit.
Model 500
When connected to a
single-refrigerant circuit
(factory setting)
When connected to t a
2-refrigerant circuit
J Bottom panel
H Fuse
C No.1 Transmission line
terminal block
E Connect trasmission line
to outdoor unit
F Fix in place after connecting writing.
SW2 SW3 SW4
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5
ON ON ON
1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5
I Control Box
G Earth