Installation and operating instructions24DAIKIN EKHHP(3/5)00AA2V3DAIKIN Hot water heat pump008.1423444_05 – 08/20167 x Operation, Parameters7.3.1 ECOIn order to increase the efficiency, we try not to use the integratedelectric Booster-Heater (BSH) in this operating mode (simulta-neous operation of hot water heat pump and Booster-Heater(BSH) is not permitted, other than with activated 'Low-Noise Op-eration").In addition, most individual settings can be made in order to guar-antee convenient and efficient operation. The settings are carriedout using the parameters, as described in Chapter 5.6.If the installation is switched on, it regulates the hot water gener-ation fully-automatically, based on the stipulations set in the con-troller. Icon is shown in the display of the controller. Icon is not shown in the display of the controller.● Use the and keys to set the desiredhot water temperature.The hot water generation can be affected by additional functions:– Low-noise operation– Switching times programming– Automatic defrosting function– Thermal disinfection (Legionella protection)– HT/NT Function– Smart Grid FunctionIf the user enters a value manually, this setting remains activeuntil the user changes it or until set special functions affect it. Atthe end of the special function, we again use the set value.Setting the switching times for the hot water generation is de-scribed in Chapter 7.4.If the set temperature value for hot water generation is notachieved by the heat pump external unit, the controller switchesover to the integrated Booster-Heater (BSH).The Booster-Heater (BSH) is only switched on if the hot watertemperature has been set above the maximum temperaturevalue achievable by the heat pump (THP MAX ) and the valuemeasured by the temperature sensor has reached the temper-ature (THP Max ).7.3.2 AUTOMATICThis operating mode is similar to the operating mode "ECO", but,after 60 minutes, the integrated electric Booster-Heater (BSH) isautomatically added in for heating and other settings are carriedout automatically in order to achieve convenient operation.● Press the key. Icon is shown in the display of the controller.● Press the key or briefly. The current target temperature for hot water is displayedfor 5 s on the display of the controller.● Within the 5 s, use the and keys to setthe required hot water temperature.When you press the key again, the operating mode "auto-matic" is switched off and the icon goes out.7.3.3 Low NoiseLow noise mode means that the exterior heat pump unit is oper-ating at reduced output. This reduces the operating noise causedby the exterior heat pump unit.● Press the key. Icon is shown in the display of the controller.The hot water set temperature should be selected sothat, in combination with the setting for the hysteresis(parameter [6-00]), the tank storage of the DAIKINEKHHP is not cooled excessively before hot watergeneration.Higher power costs can be generated than with otheroperating modes when using this operating mode.The operating mode "Low noise operation" reduces theoutput in DHW heating operation with the result that itmay no longer be possible to reach the preset targettemperatures.