Bosch Climate 5000 AA Series - 11 Automatic Wiring;Piping Correction Function; How to Activate this Function

Installation Manual Bosch Climate 5000 AA Series Inverter Multi Split-Type Ductless Air Conditioner / Heat Pump | 23
Bosch Thermotechnology Corp. | 01.2017
Data subject to change
11 Automatic Wiring/Piping Correction Function
Climate 5000 models now feature automatic correction of wiring/piping errors.
Press the "check switch" on the outdoor unit PCB board for 5 seconds until the LED
displays "CE”, indicating that this function is working. Approximately 5-10 minutes
after the switch is pressed, the "CE" disappears, meaning that the wiring/piping error
is corrected and all wiring/piping is properly connected.
Correct wiring
Terminal
block
Liquid/
Gas pipe
Outdoor unit
Indoor unit B
Indoor unit A
B
A
B
A
Incorrect wiring
Terminal
block
Liquid/
Gas pipe
Outdoor unit
Indoor unit B
Indoor unit A
B
A
B
A
Incorrect wiring
Terminal
block
Liquid/
Gas pipe
Outdoor unit
Indoor unit B
Indoor unit A
B
A
B
A
Check switch
LED display
Figure 26
11.1 How To Activate This Function
1. Check that outside temperature is above 41°F (5℃).
(This function does not work when outside temperature is not above 41°F
(5℃))
2. Check that the stop valves of the liquid pipe and gas pipe are open.
3. Turn on the breaker and wait at least 2 minutes.
4. Press the check switch on the outdoor PCB board until the LED displays "CE".