Sanyo CHDX09663, CHDXR07263, CHDXR09663 S010 switch, S010 Compressor 1 backup, Compressor 2 backup

16. Backup Operation

W-2WAY ECO-i SYSTEM Control Functions

Outdoor unit tonnage	8 Ton
Switches to turn ON	INV+AC1+BU

(C)Close all service valves at the failed outdoor units.

(D)Reset the power at outdoor unit No.1.

* When the PCB of the main unit is normal, by implementing the above settings while leaving the communica- tion lines between indoor and outdoor units as they are, backup operation of units are possible. In this case,

the outdoor unit that backed up all compressors is not identified as an outdoor unit,	however, it can work as	1
the command controller.

[2] Disabling operation of 1 compressor

At the S010 switch on the PCB of the failed outdoor unit, turn ON the switch for the compressor to disable, and turn ON the “backup” switch.

<S010 switch>

( * )

INV AC1 AC2 Backup

ON

OFF

S010

(A) Compressor 1 backup

ON

OFF

(B) Compressor 2 backup

ON

OFF * AC2 switch is not available.

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