L19 Duplicated Water Heat Exchanger Unit Parallel Array Addresses - Panasonic 2WAY Multi Technical & Service Manual

L19 Duplicated Water Heat Exchanger Unit Parallel Array Addresses

* Only detected when the water heat exchanger unit is connected.
Re-check the settings if it is not the relevant model.
Error detection method
An error is determined in accordance with the criteria shown below when duplicated water heat exchanger unit
parallel array addresses are detected
• When using the RS-485 line to enable the use of the remote controller (CZ-10RTGXA), multiple water
heat exchanger units with the same parallel address (SW6) are connected within the same wiring array.
Duplicated addresses are determined when detected for the fi rst time. (However, duplicated addresses set at
"0" are not detected.)
Troubleshooting
1
Are two or more water heat exchanger units managed by the
1-1
Number
remote controller (CZ-10RTGXA)?
of units
Set "0" on the water heat exchanger unit's control board (SW6) without any connections made
connected
1-2
for TB5-4 or 5 on the terminal board.
check
2
Duplicated
parallel Eradicate the duplicated parallel array addresses on the water heat exchanger unit's control
2-1
array board (SW6) within the RS-485 wiring array.
address
check
● For board and Electrical Wiring Diagram, see Chapter 6.
• Outdoor main board: page VI-2
• Outdoor power board: page VI-3
• Converter board: VI-4
• Indoor control board for DC motor models: page VI-5
• Outdoor Unit Electrical Wiring Diagram: page VI-6
IV–79
Yes 2-1
No 1-2