Daikin EKHBH030BA Operation Manual

Also see for EKHBH030BA: Installation manual

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Operation manual7 EKHBH/X030BAIndoor unit for air to water heat pump system and options4PW62569-1 – 07.2010Schedule timer operationIn schedule timer operation, the installation is controlled by theschedule timer. The actions programmed in the schedule timer will beexecuted automatically.The schedule timer always follows the last command until a newcommand is given. This means that the user can temporarily overrulethe last executed programmed command by manual operation (Referto "Manual operation" on page 6). The schedule timer will regaincontrol over the installation as soon as the next programmedcommand of the schedule timer occurs.The schedule timer is enabled (p icon displayed) or disabled (p iconnot displayed), by pressing the pr button.To set up the SCHEDULE TIMER refer to chapter "Programming andconsulting the schedule timer" on page 8.What can the schedule timer do?The schedule timer allows the programming of:1. Space heating and space cooling (refer to "Programming spaceheating or space cooling" on page 9)Switch on the desired mode at a scheduled time, in combinationwith a set point (weather dependent or manually set). Fiveactions per weekday can be programmed, totalling 35 actions.2. Quiet mode (refer to "Programming quiet mode, booster heatingor domestic water heating" on page 10)Switch the mode on or off at a scheduled time. Five actions canbe programmed per mode. These actions are repeated daily.3. Booster heating (refer to "Programming quiet mode, boosterheating or domestic water heating" on page 10)Allow or disallow booster heating at a scheduled time. Fiveactions can be programmed per mode. These actions arerepeated daily.4. Domestic water heating (refer to "Programming quiet mode,booster heating or domestic water heating" on page 10)Switch the mode on or off at a scheduled time. Five actions canbe programmed per mode. These actions are repeated daily.What can the schedule timer NOT do?The schedule timer can not change the operation mode from spacecooling to space heating or vice versa.How to interpret the programmed actionsTo be able to understand the behaviour of your installation when theschedule timer is enabled, it is important to keep in mind that the"last" programmed command overruled the "preceding" programmedcommand and will remain active until the "next" programmedcommand occurs.Example: imagine the actual time is 17:30 and actions areprogrammed at 13:00, 16:00 and 19:00. The "last" programmedcommand (16:00) overruled the "previous" programmed command(13:00) and will remain active until the "next" programmed command(19:00) occurs.So in order to know the actual setting, one should consult the lastprogrammed command. It is clear that the "last" programmedcommand may date from the day before. Refer to "Consultingprogrammed actions" on page 11.■ Only use the pr button to enable or disable theschedule timer. The schedule timer overrules the ybutton. The y button only overrules the scheduletimer until the next programmed action.■ If the auto restart function is disabled, the scheduletimer will not be activated when power returns to theunit after a power supply failure. Press the pr buttonto enable the schedule timer again.■ When power returns after a power supply failure, theauto restart function reapplies the user interfacesettings at the time of the power supply failure.It is therefore recommended to leave the auto restartfunction enabled.■ The programmed schedule is time driven. Therefore, itis essential to set the clock and the day of the weekcorrectly. Refer to "Setting the clock" on page 5.■ Manually adjust the clock for summertime andwintertime. Refer to "Setting the clock" on page 5.■ A power failure exceeding 2 hours will reset the clockand the day of the week. The schedule timer willcontinue operation, but with a disordered clock. Referto "Setting the clock" on page 5 to adjust the clockand the day of the week.■ The actions programmed in the schedule timer will notbe lost after a power failure so that reprogramming theschedule timer is not required.NOTE When the unit is connected to an external roomthermostat, the schedule timer for space heating andspace cooling is overruled by the external roomthermostat.■ The programmed actions are not stored according totheir timing but according to the time of programming.This means that the action that was programmed firstgets action number 1, even though it is executed afterother programmed action numbers.■ When the schedule timer switches space heating orspace cooling x, the controller will also beswitched off. Note that this has no influence ondomestic water heating.During schedule timer operation, someone may havealtered the actual settings manually (in other words, the"last" command was overruled manually). The icon p,indicating the schedule timer operation, may still bedisplayed, giving the impression that the "last" commandsettings are still active. The "next" programmed commandwill overrule the altered settings and return to the originalprogram.