York HIDS006B21S Service Manual page 46

TROUBLESHOOTING
1: If the end terminal resistance (DSW10) is set to OFF for H-LINK connection, set the end terminal
resistance to ON when CN2 is disconnected. Set the end terminal resistance to OFF when CN2 is
reconnected.
2: 12VDC between VCC12 and GND2
5VDC between VCC05 and GND1
12VDC between VCC12 and GND1
15VDC between VCC15 and GND1
24VDC between VCC24 and GND1
12VDC between VCC12T and GND1
Refer to the Service Manual of connected outdoor unit.
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SM-18001-rev.1