Hitachi UTOPIA RAS-4HVRP2E - External Input and Output Setting; Function Setting; Check Mode; Menu Mode Accessing (by 7-Segment Display)

6 Optional functions
RAS-3HVRC2
SMGB0136 rev.0 - 07/2021
106
6.1 RAS-3HVRC2
6.1.1 Menu mode accessing (by 7-segment display)
Make sure to perform external input/output and setting while the outdoor unit is stopped. It cannot be set while the
outdoor is operating or check mode.
PCB1 PCB2
7-segment display, DSWs and PSWs location.
6.1.1.1 Check mode
It is used to check the condition of the outdoor and indoor units. It also displays the last 15 items in alarm code
history. It is mainly used for servicing.
Start setting Exit setting
Press PSW1 for 3 seconds Press PSW1 for 3 seconds
6.1.1.2 External input and output setting
It is used to set the functions by external input and output signals.
Start setting Exit setting
1º Turn ON DSW2 PIN6
2º Turn ON DSW301 PIN4
1º Turn OFF DSW301 PIN4 during indicated external Input/Output setting mode
2º Turn OFF DSW2 PIN6
6.1.1.3 Function setting
It is used to set the operation mode of the indoor units depending on the requirements of the system.
Start setting Exit setting
1º Turn ON DSW2 PIN5
2º Turn ON DSW301 PIN4
1º Turn OFF DSW301 PIN4 during indicated external Input/Output setting mode
2º Turn OFF DSW2 PIN5
? NOTE
• Aftersetting,conrmDSW2andDSW1settingissameassettingbeforeshipment.
• Release“MenuMode”afterthesettingiscompleted.Otherwise,theairconditionermaynotoperateappropriately.