Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 262

[7-9 Error Code Definitions and Solutions: Codes [7000 - 7999] ]
7-9-9 Error Code [7130]
1. Error code definition
Incompatible unit combination
2. Error definition and error detection method
The check code will appear when the indoor units and HBC with different refrigerant systems are connected.
3. Error source, cause, check method and remedy
After troubleshooting the error using the check methods and remedies shown below, turn the power back on.
Error source
Outdoor unit
HBC
BS_07_M
Cause
The connected indoor unit is for use with R22,
R407C, or R410A. Incorrect type of indoor
units are connected.
The M-NET connection adapter is connected
to the indoor unit system in a system in which
the Slim Model (A control) of units are con-
nected to the M-NET.
Indoor units with flow control valves and those
without are connected to the outdoor terminal
block (TB3) for indoor/outdoor transmission
line.
Check method and remedy
Check the connected indoor unit model.
Check whether the connecting adapter for
M-NET is not connected to the indoor unit.
(Connect the connecting adapter for M-NET
to the outdoor unit.)
Check the model of the indoor unit connect-
ed to the outdoor terminal block (TB3) for in-
door/outdoor transmission line.
(*) Note that the following indoor units with
the model name P**Y-W are treated the
same as with the indoor units without flow
control valves.
<Applicable indoor units>
PKFY-W**
89
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