Daikin EKHBH030BA Operation Manual

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Contents

EKHBH/X030BAIndoor unit for air to water heat pump system and options4PW62569-1 – 07.2010Operation manual6Controller operationsManual operationIn manual operation, the user manually controls the settings of theinstallation. The last setting remains active until the user changes it oruntil the schedule timer forces another setting (refer to "Scheduletimer operation" on page 7).As the controller can be used for a wide variety of installations, it ispossible to select a function which is not available on yourinstallation. In that case the message n will appear.Switching on and setting space heating (h) and space cooling(c)1 Use the = button to select space heating (h) or space cooling(c).Icon h or c appears on the display as well as the correspondingwater temperature set point.2 Use the bi and bj buttons to set the desired watertemperature.• Temperature range for heating: 77°F (25°C) to 131°F (55°C)The temperature for heating can be set as low as 59°F(15°C) (see "Field settings" on page 12). However, thetemperature for heating should only be set lower than 77°F(25°C) during commissioning of the installation. When setlower than 77°F (25°C), only the backup heater will operate.In order to avoid overheating, space heating is not operablewhen the outdoor ambient temperature rises above a certaintemperature (as set through field setting [4-02], refer to "Fieldsettings" on page 12).• Temperature range for cooling: 41°F (5°C) to 71.6°F (22°C)3 Switch on the unit by pushing the y button.The operation LED 0 lights up.Selection and setting of domestic water heating (w)1 Use the v button to activate domestic water heating (w).Icon w appears on the display.2 Use the wi or wj button to display the actualtemperature set point and subsequently, to set the correcttemperature.The actual temperature set point only appears on the displayafter pressing one of the buttons wi or wj. If no button ispressed for 5 seconds, the temperature set point willautomatically disappear from the display again.Temperature range for domestic water heating: 86°F (30°C) to172.4°F (78°C)3 Press the v button to deactivate domestic water heating (w).Icon w disappears from the display.Selecting powerful domestic water heating operation1 Press v for 5 seconds to activate powerful domestic waterheating operation.Icons w and m start flashing.Powerful domestic water heating is deactivated automaticallywhen the set point for the domestic hot water is reached.Selecting quiet mode operation (s)1 Use the s button to activate quiet mode operation (s).Icon s appears on the display.If the controller is set in permission level 2 or 3 (refer to "Fieldsettings" on page 12), the s button will not be operable.Selecting weather dependent set point operation (only inheating mode)1 Press the ba button to select weather dependent set pointoperation.Icon a appears on the display as well as the shift value. Theshift value is not shown in case it is 0.2 Use the bi and bj buttons to set the shift value.Range for the shift value: –9°F (–5°C) to +9°F (+5°C)Displaying actual temperatures1 Push the ba button for 5 seconds.The b icon and the outgoing water temperature are displayed.The icons l and = are flashing.2 Use the pi and pj buttons to display:• The outdoor temperature (u icon is flashing).• The domestic hot water tank temperature (w icon isflashing).• The outgoing water temperature (= are flashing).If no button is pressed for 5 seconds, the controller leaves thedisplay mode.CAUTIONThe actual operation range depends on the values set onfield setting [9].These values shall be determined based on theapplication.In heating mode (h), the water temperature set point canalso be weather dependent (icon a is shown).This means that the controller calculates the watertemperature set point based on the outdoor temperature.In this case, instead of showing the water temperature setpoint, the controller shows the "shift value" which can beset by the user. This shift value is the temperaturedifference between the temperature set point calculated bythe controller and the real set point. E.g. a positive shiftvalue means that the real temperature set point will behigher than the calculated set point.When the unit is connected to an external roomthermostat, buttons = and y are not operable and theicon e is shown. In this case, the external roomthermostat switches the unit on or off and determines theoperation mode (space heating or space cooling).Remark that pushing the y button has no influence onthe domestic water heating. Domestic water heating is onlyswitched on or off by means of the v button.