System Control (Fig. 12-1) - Mitsubishi Electric SEZ-A12 Installation Manual

12.System control (Fig. 12-1)

C412
JP17,18
RC00J590B
A Outdoor unit
B Indoor unit (only SEZ)
C Master remote controller
D Subordinate remote controller
E Standard 1:1 (Refrigerant address = 00)
F Simultaneous two groups (Refrigerant address = 01)
G Simultaneous three groups (Refrigerant address = 02)
H Simultaneous four groups (Refrigerant address = 03)
I Indoor controller board.
A A
B E B F
2
1
C
Fig. 12-1
I
52C
A A
B G B H
2 2
1 Wiring from the Remote Control
This wire is connected to terminal block for remote controller of the indoor unit (non-
polar).
2 When a Different Refrigerant System Grouping is Used.
Up to 4 refrigerant systems can be controlled as one group using the MA remote
controller. There is need to set up JP17, JP18 jumper wire of indoor controller board.
Note:
In single refrigerant system, there in no need of wiring 2, and there is need to
cut JP17, JP18 jumper wire of indoor controller board.
The total extention of remote control cable is a maximum of 100 m.
JP17
Refrigerant
E
address = 00
Refrigerant
F
address = 01
Refrigerant
G
address = 02
Refrigerant
H
address = 03
1
D
JP18
The setup at the time shipment. In single refrig-
erant system, there is no need to cut JP17, JP18.
Cut the JP17 jumper wire of indoor controller
board with a pair of nipper.
Cut the JP18 jumper wire of indoor controller
board with a pair of nipper.
Cut the JP17, JP18 jumper wire of indoor con-
troller board with a pair of nipper.
15