Mitsubishi Electric City Multi CMB-P1016NU-G, Service Handbook

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[
IX
Troubleshooting ]
3. System error
Error
Code
Error source
Error definition and error
detection method
Cause Check method and remedy
7100 Heat source
unit Total capacity error
The model total of indoor
units in the system with
one heat source unit ex-
ceeds limitations.
The model total of indoor units
in the system with one heat
source unit exceeds the follow-
ing table. 1) Check the model total (capacity
code total) of indoor units con-
nected.
2) Check the model name (capaci-
ty code) of the connected indoor
unit set by the switch (SW2 on
indoor unit board).
When the model name set by the
switch is different from that of the
unit connected, turn off the power
source of the heat source and the in-
door units, and change the setting of
the model name (capacity code).
7101 Heat source
unit
Indoor unit Capacity code error
The model name (capac-
ity code) of the connect-
ed indoor unit connected
is inappropriate.
The model name (capacity
code) set by the switch (SW2)
is wrong. 1) Check the model name (capaci-
ty code) of the indoor unit which
has the error source address set
by the switch (SW2 on indoor
unit board).
When the model name set by the
switch is different from that of the
unit connected, turn off the pow-
er source of the heat source and
the indoor units, and change the
setting of the capacity code.
*The capacity of the indoor unit
can be confirmed by the self-di-
agnosis function (SW1 opera-
tion) of the heat source unit.
Model
P72
P96 108
144
Capacity Total