Key card contact logic INFORMATION • The “previous state” can be the on/off state, operation mode, cooling setpoint, and heating setpoint. • When using the contacts, the fan speed as well as the Setback cooling and heating setpoints can be 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 timer has not expired (normal operation) will not be saved.
39 Window contact B1 Key card contact B2 Time Action Contact closed (window closed) Contact closed (key card IN) • — • Delay timer Reset timer • The unit operates normally. • If the reset timer has not expired, the unit returns to the previous state before opening the contact. • If the reset timer has expired, the unit returns to the “Default Reset Setting” (see “External input interlock settings overview” on page 37). Contact closed (window closed) Contact open (key card OUT) Time Normal indoor unit operation. Contact closed (window closed) Contact open (key card OUT) Time>Delay timer Unit operation is forced off:
• Depending on whether the Setback function is enabled, Setback will work or not. • Not possible to turn on/of f the unit with the controller’s ON/OFF button. • After the delay timer has expired, the reset timer will start counting.