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Mitsubishi Electric E Series Data Book page 69

Air cooled chilling unit
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5. Wiring Design
5-1-3. Configuring the Settings
The settings must be set only by a qualified personnel.
1. System configuration
(1) Set the dip switches.
Switch settings on the MAIN circuit
Set the dip switches (labeled A in the figure at
right) that correspond to the items below,
according to the local system.
• Water temperature control based on the
external water temperature reading
• Analog signals from a remote location
Refer to "Dip switch settings table" for further
details.
(2) Set the rotary switches. (Address setting)
Example of address setting
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
ON
1
2
3
4
5
6
7
8
9 10
MEES19K040
MAIN circuit board
1
2
System leader
Sub unit
unit
SUB
MAIN
SUB
MAIN
51
1
52
2
M-NET line
7
8
Group leader
Sub unit
unit
SUB
MAIN
SUB
MAIN
57
7
58
8
19
20
Group leader
Sub unit
unit
SUB
MAIN
SUB
MAIN
69
19
70
20
The figure at left shows that the switches 1 through 5 are set to ON and 6 through 10 are set to OFF.
SUB circuit board
A
6
Sub unit
Simultaneous
operating group
(Max 6 units)
SUB
MAIN
56
6
12
Sub unit
Simultaneous
operating group
(Max 6 units)
SUB
MAIN
62
12
24
Sub unit
Simultaneous
operating group
(Max 6 units)
SUB
MAIN
74
24
Identical water
system group
(Max 24 units)
68

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