McQuay MDS 100B

88 Service Manual SM-MDS_(ii)
Wrong Hardware and Software combination
Error Code: R22 (For MDS-M PCB)
Error Code: R410 (For MDS-M PCB)
Remove the wire connection
and restart the system
YES
Is the sensor and pressure
sensor correctly connected?
NO
Replace an outdoor PCB and
re-program the PCB
Turn off the unit
Check the connector on
outdoor PCB.
Refer Appendix 7.6
Is there any connection?
Add the wire connection and
restart the system
NO
YES
Replace an outdoor PCB and
re-program the PCB
Turn off the unit
Check the connector on
outdoor PCB.
Refer Appendix 7.6
Is there any connection?
6