Error Code [7110]; Error Code [7111] - Mitsubishi Electric PURY-M200YNW-A1 Service Handbook

[7-9 Error Code Definitions and Solutions: Codes [7000 - 7999] ]
7-9-4 Error Code [7107]
1. Error code definition
Port setting error
2. Error definition and error detection method
The port with wrong number is connected to the indoor unit.The model total connected to the port is greater than the specifi-
cation.
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
HBC (1)
(2)
(3)
(4)
(5)
(6)
84
- chapter 7
Cause
Model total of indoor units per each port or per
each port merge is greater than the specification.
Single branching
Total port
number
Two branches merge
4 or more indoor units are connected to the same
port.
When two ports are used, the port with the smaller
number is not connected to the indoor unit.
For the address of the HBC (Sub 1 - 3), 50 is not
added to the smallest indoor unit address, which is
connected to the HBC (Sub 1 - 3).
In the system to which multiple HBCs are con-
nected, the indoor unit address connected to the
HBC is not set as shown below.
(i) The indoor unit address which is connected to
the HBC (main)
(ii) The indoor unit address which is connected to
the HBC (Sub 1)
(iii) The indoor unit address which is connected to
the HBC (Sub 2)
(iv) The indoor unit address which is connected to
the HBC (Sub 3)
Address setting
(i) < (ii) < (iii) < (iv)
Indoor units (P80 or above) using two branch
ports are connected to two branch ports across
the groups listed below.
[HBC]
Group 1: Branch port No. 1 to No. 3
Group 2: Branch port No. 4 to No. 6
[Sub HBC]
Group 1: Branch port No. 1 to No. 4
Group 2: Branch port No. 5 to No. 8
Group 3: Branch port No. 9 to No. 12(*)
Group 4: Branch port No. 13 to No. 16(*)
* For Sub HBC with 16 branch ports
Check method and remedy
Before resetting the port number using
the port number setting switch or the
model using the model (capacity code)
setting switch, turn off the power of the
80
outdoor unit, the HBC and the indoor
unit.
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BS_07_M