Wiring Design; System Configurations - Mitsubishi Electric E Series Data Book

5. Wiring Design

5-1. System Configurations

5. Wiring Design
The system must be configured only by personnel certified by Mitsubishi Electric.
5-1-1. Schematic Diagrams of Individual and Multiple Module Connection Systems
(1) Individual system
Refer to the sections "Switch Types and the Factory Settings" and "Configuring the settings"
for further details.
(2) Multiple module connection system (Max.24 modules)
System leader unit
Group leader unit
Sub unit
Example system
Field-supplied dry
contact switch/relay,
remote controller
or centralized
controller
External temperature
sensor 1 (option)
Flow switch
Pump interlock
External temperature
sensor 2 (option)
External temperature
sensor 1 (option)
Flow switch
Pump interlock
External temperature
sensor 1 (option)
Flow switch
Pump interlock
Refer to the sections "Switch Types and the Factory Settings" and "Configuring the settings" for further
details.
MEES19K040
External temperature sensor 2 (option)
Flow switch
SUB MAIN
Pump interlock
PCB PCB
Field-supplied dry contact
switch/relay, remote controller
The unit controls the identical water system group.
The unit transmits the command from the system leader unit to the sub unit.
The unit is other than leader unit.
1 2
System leader
Sub unit
unit
SUB MAIN SUB MAIN
PCB PCB PCB PCB
M-NET line
7 8
Group leader
Sub unit
unit
SUB MAIN SUB MAIN
PCB PCB PCB PCB
19 20
Group leader
Sub unit
unit
SUB MAIN SUB MAIN
PCB PCB PCB PCB
or centralized controller
6
Sub unit
SUB MAIN
PCB PCB
12
Sub unit
SUB MAIN
PCB PCB
24
Sub unit
SUB MAIN
PCB PCB
Simultaneous
operating group
(Max 6 units)
Simultaneous Identical water
system group
operating group
(Max 6 units) (Max 24 units)
Simultaneous
operating group
(Max 6 units)
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