81.4.3 The main operating mode switchThe menu for the main operating switch can be accessed by pressing “+” while in thedefault display. The menu contains the operating mode switch for the controller andthe main switch for the heat pump.The position of the switch can then be selected by using “+” and “-”. The selectedposition can be entered by pressing “OK”.The main operating switch has the following effects on the module library:Heating circuits Domestic hot water circuits Heat pumpSwitch positionOff Off: Valve stays in currentposition, pump offOff: Valve stays in currentposition, pump offOffAuto Automatic operation: Automatic setpoint switching dependingon timer program (day/night)Automaticoperation:Setpointaccording todemandSummer Switch-off operation:Valve closed, Pump off,Frost protection remainsactiveAutomatic operation: Automaticsetpoint switch depending ontimer programHoliday Reduced operation/support operation: Setpoints of non-operatingtime NO (night) applyDuration Nominal operation: Setpoints of operating time 1 OT1 day applyManual Manual operation: Valve and pump function as defined in the “Manual operation”menuTable 1.4: Operating mode switchNOTE:In the “Off“ switch position, the frost protection and pump prerun/extendedrunning functions are not active!You can find further information in the menu “configuration – switch – operatingmode switch“. When the controller is communicating via communication port withthe heat pump(s) you will find in this menu also the main switch of the heat pumpMS-HPx. These parameters substitute the ON/OFF keys of the heat pump and theFORCE key in the operating unit in the heat pump.MS-PxSwitch- position Off Heat pump is switched offAuto Heat pump is controlled by the controller HPMxForce Heat pump is switched on in emergency operation (E-heater inside is active).Table 1.5: Main switch of heat pumpFor more information please refer to the menu “Configuration – switch – heat pumpmain switch”