Daikin EKHBH008BB3V3 Operation Manual

Also see for EKHBH008BB3V3: Installation manual

Contents

EKHBH/X008BBIndoor unit and options for air to water heat pump system4PW62571-1A – 05.2011Operation manual22A PPENDIX (for restricted power supply condition mode only)3. INTRODUCTION3.1. General informationHeating/cooling units and heating only unitsThe unit range consists of two main versions: a heating/cooling(EKHBX) version and a heating only (EKHBH) version.Both versions are delivered with an integrated backup heater. Thebackup heater only serves as a backup in case of malfunctioning ofthe outdoor unit. In this application with restricted power supplycondition mode, the backup heater should be considered asemergency backup heater.Domestic hot water tank (option)An optional domestic hot water tank can be connected to the indoorunit. Only the tank with built-in electrical booster heater (EKHW*) in 3different sizes: 150, 200 and 300 litre, can be connected to the indoorunit.Refer to the domestic hot water tank installation manual for furtherdetails.4. OPERATING THE UNIT4.1. IntroductionThe heat pump system is designed to provide you a comfortableindoor climate for many years at low energy consumption.To get the most comfort with the lowest energy consumption out ofyour system, it is very important to observe the items listed below.Defining possible schedule timer actions for each day and filling outthe form at the very end of this manual can help you minimize theenergy consumption. Ask your installer for support if required.■ Make sure the heat pump system works at the lowest possiblehot water temperature required to heat your house.To optimize this, make sure the weather dependent set point isused and configured to match the installation environment.Refer to "5. Field settings" on page 13.■ It is advised to install the room thermostat connected to theindoor unit. This will prevent excessive space heating and willstop the outdoor unit and the indoor circulation pump when theroom temperature is above the thermostat set point.■ Next recommendations only apply to installations with anoptional domestic hot water tank.■ Make sure the domestic hot water is only heated up to thedomestic hot water temperature you require.Start with a low domestic hot water temperature set point(e.g. 45°C), and only increase if you feel that the domestichot water supply temperature is not sufficient.■ Only for tank with built-in electrical booster heater (EKHW*):Make sure the domestic water heating by booster heater onlystart 1 to 2 hours before you expect domestic hot waterusage.In case you only need a lot of domestic hot water in theevening or in the morning, only allow domestic water heatingby booster heater during early morning and early evening.Also keep hours with low electricity cost tariffs in mind.To do this, program both the domestic water heating andbooster heating schedule timer. Refer to Programming inchapter "4.7. Programming and consulting the scheduletimer" on page 9.■ If the domestic hot water is not used for two weeks or more, aquantity of hydrogen gas which is highly flammable mayaccumulate in the domestic hot water tank. To dissipate thisgas safely, it is recommended that a hot tap be turned on forseveral minutes at a sink, basin, or bath, but not at adishwasher, clothes washer or other appliance. During thisprocedure there must be no smoking, open flame or anyelectrical appliance operating nearby. If hydrogen isdischarged through the tap, it will probably make a sound asof air escaping.INFORMATIONAll information and settings in the manual are applicable forthis application, except the information and settingsmentioned in this appendix.NOTICERestricted power supply condition mode can only be usedfor a tank with built-in electrical booster heater (EKHW*).INFORMATIONFor installations with restricted power supply, the indoorunit allow operation of backup heater only, booster heateronly or outdoor unit only.Read attentively following information to understand theunit operation.