Daikin VRV IV+ Service Manual page 296

3 | Components
To set the DIP switches of the spare part main PCB
Service manual
296
If a spare part main PCB is installed in your unit, the DIP switches need to be set. By
default (factory settings) all switches are in off position.
a
b
c
a ON position
b OFF position
c DS1
e DS2
e Shows the position of a switch
1 Shut the power off.
2 Position the DIP switches for your particular model as shown in the table
below.
Applicable models
REMQ5
REYQ8
REYQ10
REYQ12
REYQ14
REYQ16
REYQ18
REYQ20
3 After replacing main PCBA1P , a test run is required. Refer to Installation
Manual for Test Run. If test run is not carried out successfully, U3 Error will be
triggered.
4 If PJ or UA or U7 Errors are triggered after spare part main PCB A1P
replacement, check the position of the switches accordingly. If the error is not
solved then consult the related error code for troubleshooting.
Is the problem solved?
Yes
No
e
d
Position of DIP switches
Action
No further actions required.
Return to
procedures" [
and continue with the next procedure.
All switches are OFF.
DS2-2 is ON.
DS2-1 and DS2-2 are ON.
DS2-3 is ON.
DS2-1 and DS2-3 are ON.
DS2-2 and DS2-3 are ON.
DS2-1 and DS2-2 and
DS2-3 are ON.
DS2-4 is ON.
"3.11.1 Checking
4
290] of the main PCB
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05