48
CLIMATE 5000 RAC SINGLE SPLIT (R32) – 6720894076 (2019/08)
Troubleshooting
Index:
1. Indoor or Outdoor DC Fan Motor (control chip is in fan motor)
Power on and when the unit is in standby, measure the voltage of pin1-
pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not
in the range showing in below table, the PCB may be defect and need to
be replaced.
•
DC motor voltage input and output (voltage: 220-240V~):
No.
Color
Signal
Voltage
1
Red
Vs/Vm
280V~380V
2
---
---
---
3
Black
GND
0V
4
White
Vcc
14-17.5V
5
Yellow
Vsp
0~5.6V
6
Blue
FG
14-17.5V
Table 19.
Red
Black White Yellow Blue
Fig. 71.
2. Indoor AC Fan Motor
Power on and set the unit running in fan mode at high fan speed. After
running for 15 seconds, measure the voltage of pin1 and pin2. If the
value of the voltage is less than 100V(208~240V power supply) or
50V(115V power supply), the PCB may be defect and need to be
replaced.
Red
Red
Input Terminal
Black
Black
White
White
Fig. 72.
Содержание Climate 5000
Страница 1: ...6720894076 2019 08 GB CLIMATE 5000 RAC SINGLE SPLIT R32 SERVICE MANUAL ...
Страница 61: ......
Страница 62: ......
Страница 63: ......
Страница 64: ...Bosch Thermotechnik GmbH Junkersstrasse 20 24 D 73249 Wernau www bosch thermotechnology com ...