39Key card contact logicWindow contact B1 Key card contact B2 Time ActionContact closed(window closed)Contact closed(key card IN)• —• Delay timer• Time>Reset timer• The unit operatesnormally.• If the reset timer has notexpired, the unit returnsto the previous statebefore opening thecontact.• If the reset timer hasexpired, the unit returnsto the “Default ResetSetting” (see “Externalinput interlock settingsoverview” on page 37).Contact closed(window closed)Contact open(key card OUT)Time Normal indoor unitoperation.Contact closed(window closed)Contact open(key card OUT)Time>Delay timer Unit operation is forced off:• Depending on whetherthe Setback function isenabled, Setback willwork or not.• Not possible to turn on/offthe unit with thecontroller’s ON/OFFbutton.• After the delay timer hasexpired, the reset timerwill start counting.INFORMATION• The “previous state” can be the on/off state, operation mode, cooling setpoint, and heatingsetpoint.• When using the contacts, the fan speed as well as the Setback cooling and heating setpoints canbe changed at any time, without losing changes.• The fan speed is stored independently for the two main operation modes (Heating and Cooling).Separate fan speed settings are saved for Heating operation mode on the one hand, and Cooling,Dry and Fan only operation mode on the other hand.• When closing the contact, changes made while the key card contact is open and the delay timerhas not expired (normal operation) will not be saved.
