Daikin ERQ Service Manual page 119

ESIE09-05
3.2.2 Cool / Heat Mode Switching
There are the following 2 cool/heat switching modes.
Set Cool / Heat for Outdoor Unit System by Remote Controller
Test Operation
Set cool/heat separately for each outdoor unit system by AHU remote controller (only for Z-
control).
Set cool/heat separately for each outdoor unit system by cool/heat switching remote
controller (X-, Y- and Z-control).
Set outdoor unit PC board DS1-1 to IN (factory set).
Set cool/heat switching to IND (individual) for "Setting mode 1" (factory set).
: http://splitoff.ru/tehn-doc.html
Field Setting
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