Mitsubishi Heavy Industries ESA30E-25, Technical Manual

Page: 130 / 239

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'15 • HM-T-246
(4) Address setting
When there are 8 units for 3 systems (3 master units, 1 slave unit, 1 slave unit and 3 slave units)
Hot water
supply
system
Heat
source
water heater
SW1 SW2 SW4-7 SW4-8 Network address
Master
Slave 1
Master
Slave 1
Master
Slave 1
Slave 2
Slave 3
A
B
C
It is necessary to use SW4-7 and SW4-8 for the setting of slave units.
For master unit, set SW4-7: OFF and SW4-8: OFF.
Caution
Address Nos. of slave units are the
master unit address No. +1 to +3.
When setting the address No. for
master unit, take care not to duplicate
it with those of other systems.
You cannot operate if there is a
duplication. (Error display: E-31)
00
01
10
11
20
21
22
23
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
0
0
0
0
0
0
0
0
0
0
1
1
2
2
2
2
Master unit must
be OFF.
Set slave units as shown
in the following list.
Same combination
must be used on
each system.
P CB
SW settings.

connected at the maximum.


SW and SW need to be set in the same way for master and slave units in the same

SW SW
combination is allowed.
master unit address can start from 00.
0 0
0
0
0

This list shows an example. .
When the
.
This is all for the address setting for master and slave units.
SW4-7 SW4-8
ON
OF F
ON
Master OFF OFF
Slave OFF
Slave OFF
SW1,2
SW4-7,4-8
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