Daikin Premium Mini D2270 Owner's Manual & Installation Instructions page 29

Installer Setup
Dry Contact Operation
Dry Contact Polarity (setup step 24)
Open (Normally Open) - The dry
contact is open until the connected
device closes the circuit.
'Idle' 'Active' 'Idle' 'Active'
Closed (Normally Closed) - The
dry contact is closed until the
connected device opens the circuit.
'Idle' 'Active'
Dry Contact Use (Setup Step 25 )
If selected when the
Condensate Pan -
Dry Contact is active, the thermostat
will lockout compressor terminal(s) and
"CONDENSATE PAN" will appear on the
display.
- If Vacation is selected when the dry contact is active,
Vacation
the thermostat will be forced into AWAY/ Unoccupied settings.
If FDD is selected when the dry contact is active, "EQUIP
FDD -
FAULT" will appear on the display.
24