Panasonic PAW-160MAH3M, Руководство по установке, Страница: 86 / 92

86
AHU Kit – Installation Instructions – 07/2023
Trouble diagnosis
8
8.6 Error codes on A4 PCB (ACC-SP1A)
Green LED display Meaning Action to take
Off Power Off Check the remote control line connection (A4 PCB CN1 terminals
12 & 13 to A1 PCB CN041 blue)
Blinking at 3 s intervals 12VDC
(T10 terminal)
power supply error
Check the power supply line connection (A4 PCB CN1 terminals
14 & 15 to A1 PCB T10 CN061 yellow contacts 2 & 5) Attention
polarity!
On/off out at 1 s intervals Indoor unit alarm Check and clear the indoor unit alarm
On/off out at 100 ms intervals Initializing communications, com-
munications error
Check the remote control line connection (A4 PCB CN1 terminals
12 & 13 to A1 PCB CN041 blue)
On
1
Normal operation –
1 Each time when setting data is transmitted to an indoor unit the LED will be turned off for 200 ms.
8.7 Thermistor curves
Suction Air (TA) temperature sensor and Discharge Air (BL) temperature sensor
Temperature (°C)
Resistance (kΩ)
10 55 50 45 40 35 30 25 20 15
10
9
8
7
6
5
4
3
1
2
Refrigerant Coil (E1, E2, E3) temperature sensor
Resistance (kΩ) Resistance (kΩ)
Temperature (°C) Temperature (°C)
40
35
30
25
20
15
10
5
0
0 5 0 1 5 1 0 2
8
7
-20 -15 -10 -5
6
5
4
3
2
1
0
20 30 60 40 50