Daikin EKHBHE008BA3V3 Installation Manual Download Page 1

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EKHBHE008BA3V3
EKHBXE008BA3V3

Indoor unit for air to water heat pump system

For installation WITH restricted power supply condition

=6 kW

Summary of Contents for EKHBHE008BA3V3

Page 1: ...INSTALLATION MANUAL EKHBHE008BA3V3 EKHBXE008BA3V3 Indoor unit for air to water heat pump system For installation WITH restricted power supply condition 6 kW ...

Page 2: ...3 4 35 48 142 101 502 2 3 4 5 48 39 96 361 1 1 2 FBSP 1 MBSP 895 922 830 469 260 B B T T 2 350 300 500 1 2x 2x 1x 1x 1x 1 2 3 4 5 30 90 1 2 3 4 ...

Page 3: ...ERLQ heat pumps These units are designed for wall mounted indoor installation See Selecting an installation location on page 12 The units can be combined with Daikin fan coil units floor heating applications low temperature radiators Daikin domestic water heating applications and Daikin solar kit for domestic hot water applications Heating cooling units and heating only units The unit range consis...

Page 4: ...r operation Emergency backup heater operation occurs because of User request to heat up water to the space heating loops The temperature of this water is too low and is out of the operation range during initial start up for example Refer to Initial start up at low outdoor ambient temperatures on page 22 and Re start at low outdoor ambient temperatures on page 22 During heating operation the water ...

Page 5: ...on as the refrigerant pipes may be hot or cold depending on the condition of the refrigerant flowing through the refrigerant piping compressor and other refrigerant cycle parts Your hands may suffer burns or frostbite if you touch the refrigerant pipes To avoid injury give the pipes time to return to normal temperature or if you must touch them be sure to wear proper gloves Do not touch the intern...

Page 6: ...b the control system and cause malfunction of the equipment Where flammable gases may leak where carbon fibre or ignitable dust is suspended in the air or where volatile flammables such as thinner or gasoline are handled Such gases may cause a fire Where the air contains high levels of salt Where voltage fluctuates a lot such as that in factories In vehicles or vessels Where acidic or alkaline vap...

Page 7: ...r tank optional 2 Indoor unit 3 Heat exchanger 11 Booster heater 4 Pump 12 Heat exchanger coil 5 Shut off valve FHL1 3 Floor heating loop 6 Collector field supply T1 3 Individual room thermostat optional 7 Shut off valve 8 Motorised 3 way valve delivered with domestic hot water tank M1 3 Individual motorised valve to control loop FHL1 field supply 9 By pass valve field supply NOTE Details on pump ...

Page 8: ...g mode to achieve the target leaving water temperature With the unit in heating mode the 2 way valve 13 is open Hot water is provided to both the fan coil units and the floor heating loops With the unit in cooling mode the 2 way valve 13 is closed to prevent cold water running through the floor heating loops FHL The ON OFF setting of the heating cooling operation is done by the user interface on t...

Page 9: ...tarts operating depending on the outdoor temperature status of permission signal for the auxiliary boiler When the permission is given towards the boiler the space heating operation by the EKHB unit will be automatically switched off For more details see field setting C 02 C 04 CAUTION Be sure that the boiler and the integration of the boiler in the system is in accordance with relevant European a...

Page 10: ...ler will operate so as to achieve the target leaving water temperature as set on the boiler controller Never set the target leaving water temperature set point on the boiler controller above 55 C Make sure to only have 1 expansion vessel in the water circuit An expansion vessel is already premounted in the Daikin indoor unit NOTE Make sure to configure the DIP switch SS2 3 on the PCB of the EKHB s...

Page 11: ...tat Status signal active not active from the mixing station It is the installers responsibility to make sure no unwanted situations can occur e g too high water temperatures towards floor heating loops etc Daikin does not offer any type of mixing station Dual set point control only provides the possibility to use two set points When only zone A request heating zone B will be fed with water at a te...

Page 12: ...s the installer and user to set up use and maintain the unit 8 Refrigerant liquid connection 9 Refrigerant gas connection 10 Shut off valves accessory The shut off valves on the water inlet connection and water outlet connection allow isolation of the indoor unit water circuit side from the residential water circuit side This facilitates draining and filter replacement of the indoor unit 11 Water ...

Page 13: ...ose The actual outlet of the pressure relief valve Make sure to provide a proper drain Switch box main components 1 Backup heater contactors K1M and K5M 2 Main PCB The main PCB Printed Circuit Board controls the functioning of the unit 3 Booster heater contactor K3M only for installations with domestic hot water tank 4 Booster heater circuit breaker F2B only for installations with domestic hot wat...

Page 14: ... not intended for use in a potentially explosive atmosphere Do not install the unit in places often used as work place In case of construction works e g grinding works where a lot of dust is created the unit must be covered Take care that in the event of a water leak water can not cause any damage to the installation space and surroundings Do not place any objects or equipment on top of the unit B...

Page 15: ...ee packing on the wall and mark the fixation positions 2 on top T and 2 at the bottom B Make sure that the marks 2 by 2 are completely level and the dimensions of the marks are corresponding according to figure 4 When the unit is not installed level air might get trapped in the water circuit resulting in malfunctioning of the unit Pay special attention to this when installing an EKHBX model to pre...

Page 16: ...nections and leaks NOTE The unit is only to be used in a closed water system Application in an open water circuit can lead to excessive corrosion of the water piping NOTE Before continuing the installation of the unit check the following points The maximum water pressure 3 bar static pressure of pump The maximum water temperature is 65 C safety device setting Two shut off valves are delivered with...

Page 17: ...this case refer to Re start at low outdoor ambient temperatures on page 22 Repeated forced defrost stops can in some cases cause severe ice build up on the outdoor unit This will lead to reduced unit performance In most applications this minimum water volume will have a satisfying result In critical processes or in rooms with a high heat load though extra water volume might be required NOTE When c...

Page 18: ...pecting the water in and outlet If air moisture or dust gets in the water circuit problems may occur Therefore always take into account the following when connecting the water circuit Use clean pipes only Hold the pipe end downwards when removing burrs Cover the pipe end when inserting it through a wall so that no dust and dirt enter Use a good thread sealant for the sealing of the connections The...

Page 19: ...ring must be carried out in accordance with the wiring diagram supplied with the unit and the instructions given below Be sure to use a dedicated power supply Never use a power supply shared by another appliance Be sure to establish an earth Do not earth the unit to a utility pipe surge absorber or telephone earth Incomplete earth may cause electrical shock Be sure to install an earth leakage circ...

Page 20: ...s are provided at the bottom of the switch box Fix all cables using cable ties field supply A dedicated power circuit is required for the backup heater Installations equipped with a domestic hot water tank optional require a dedicated power circuit for the booster heater Please refer to the domestic hot water tank installation manual Connection of the indoor unit power supply and communication cab...

Page 21: ...field setting F 00 See Pump operation configuration on page 21 and field setting F 00 in F Option setup on page 29 Connection of the valve control cables Valve requirements Power supply 230 V AC Maximum running current 100 mA Wiring the 2 way valve 1 Using the appropriate cable connect the valve control cable to the X2M terminal as shown on the wiring diagram 2 Fix the cable s with cable ties to t...

Page 22: ...mounted indoors NOTE Be careful not to distort the shape of the lower part of the digital controller by over tightening the mounting screws 1 Unit 2 Rear part of the digital controller 3 Front part of the digital controller 4 Wired from the rear 5 Wired from the top 6 Notch the part for the wiring to pass through with nippers etc 1 P1 P2 1 1 6 2 3 4 5 P1 P2 16a 16 16a 16 NOTE When wiring run the w...

Page 23: ...d off i e chattering and thereby impacting the lifetime of the pump When the room thermostat is connected to the indoor unit the heating and cooling schedule timers are never available Other schedule timers are not affected For more information on the schedule timers refer to the operation manual When the room thermostat is connected to the indoor unit and the button or y button is pressed the cen...

Page 24: ...ater circuit breaker F1B F3B Do not forget to turn on the backup heater circuit breaker F2B in the switchbox F1B F3B depends on the backup heater type Refer to the wiring diagram 4 Booster heater circuit breaker F2B Do not forget to turn on the booster heater circuit breaker F2B in the switch box applies only to units with optional domestic hot water tank installed 5 Earth wiring Make sure that th...

Page 25: ...ue displayed to the right 1 2 Press the bgi button to select the appropriate field setting first code 3 Press the bgj button to select the appropriate field setting second code 4 Press the pfi button and pfj button to change the set value of the select field setting 5 Save the new value by pressing the pr button 6 Repeat step 2 through 4 to change other field settings as required 7 When finished p...

Page 26: ...ion function is turned on 1 or off 0 2 02 Start time time of the day at which the domestic hot water should be heated 2 03 Set point high water temperature to be reached 2 04 Interval time period defining how long the set point temperature should be maintained Tt Target water temperature TA Ambient outdoor temperature Shift value Lo_Ti Lo_A Hi_A TA Tt 05 00 05 Hi_Ti Shift value CAUTION The disinfe...

Page 27: ... i e the heat pump ON temperature and stopped i e the heat pump OFF temperature When the domestic hot water temperature drops below the heat pump ON temperature THP ON heating of the domestic hot water by the heat pump can be started As soon as the domestic hot water temperature reaches the heat pump OFF temperature THP OFF or the user set point temperature TU heating of the domestic hot water by ...

Page 28: ... point for domestic hot water TU Refer to field setting 7 00 and the operation manual to select preferable set point If this high domestic hot water temperature can be a potential risk for human injuries a mixing valve field supply shall be installed at the hot water outlet connection of the domestic hot water tank This mixing valve shall secure that the hot water temperature at the hot water tap ...

Page 29: ...ating set point lower limit minimum leaving water temperature for heating operation 9 02 Cooling set point upper limit maximum leaving water temperature for cooling operation 9 03 Cooling set point lower limit minimum leaving water temperature for cooling operation 9 04 Overshoot setting defines how much the water temperature may rise above the set point before the compressor stops This function i...

Page 30: ...eating by indoor unit will be stopped C 04 Bivalent hysteresis defines the temperature difference between bivalent ON temperature and bivalent OFF temperature Permission signal X1 X2 EKRP1HB D Restricted power supply condition mode Local shift value weather dependent D 02 is set to 1 by default The restricted power supply condition mode is enabled Do not change this value Local shift value weather...

Page 31: ...h an outdoor unit ERLQ or in case the option bottom plate heater kit is installed F 02 Bottom plate heater ON temperature defines the outdoor temperature below which the bottom plate heater will be activated by indoor unit in order to prevent ice build up in the bottom plate of the outdoor unit at lower outdoor temperatures F 03 Bottom plate heater hysteresis defines the temperature difference bet...

Page 32: ...ult value 0 OFF 0 1 2 02 Space heating off temperature 25 14 25 1 C 03 Booster heater operation 3 0 1 2 3 04 Not applicable 2 Read only 5 Equilibrium temperature and space heating priority temperature 00 Not applicable Do not change the default value 1 ON 0 1 01 Not applicable Do not change the default value 0 15 35 1 C 02 Not applicable Do not change the default value 0 OFF 0 1 03 Not applicable ...

Page 33: ...t applicable Do not change the default value 0 0 1 2 3 01 Not applicable Do not change the default value 0 OFF 0 1 2 02 Not applicable Do not change the default value 1 03 Local shift value weather dependent 0 0 1 2 3 4 E Unit information readout 00 Software version Read only 01 EEPROM version Read only 02 Unit model identification Read only 03 Liquid refrigerant temperature Read only C 04 Inlet w...

Page 34: ...indoor unit cover See Opening the indoor unit on page 9 Maintenance activities To display the last resolved error code push the z button 1 time Push the z button again 4 times to return to normal mode NOTE It is not possible to perform a test run if a forced operation from the outdoor unit is in progress Should forced operation be started during a test run the test run will be aborted DANGER ELECT...

Page 35: ... TROUBLESHOOTING This section provides useful information for diagnosing and correcting certain troubles which may occur in the unit This troubleshooting and related corrective actions may only be carried out by your local technician General guidelines Before starting the troubleshooting procedure carry out a thorough visual inspection of the unit and look for obvious defects such as loose connect...

Page 36: ...BLE CAUSES CORRECTIVE ACTION There is air in the system Purge air Water pressure at pump inlet is too low Check on the manometer that there is sufficient water pressure The water pressure must be 1 bar water is cold Check that the manometer is not broken Check that the expansion vessel is not broken Check that the setting of the pre pressure of the expansion vessel is correct refer to Setting the ...

Page 37: ... protector by pressing the reset button refer to Main components on page 10 for location of the reset button Check the reset button of the thermal protector If both the thermal protector and the controller are reset but the AA error code persists the backup heater thermal fuse has blown Contact your local dealer AC Booster heater thermal protector is open applies only to installations with a domes...

Page 38: ... dealer PJ Failure of capacity setting Contact your local dealer U0 Refrigerant failure due to refrigerant leak Contact your local dealer U2 Main circuit voltage failure Contact your local dealer U4 Communication failure Contact your local dealer U5 Communication failure Contact your local dealer U7 Communication failure Contact your local dealer UA Communication failure Contact your local dealer ...

Page 39: ...9 mm 5 8 inch Expansion vessel volume 10 l 10 l maximum working pressure MWP 3 bar 3 bar Pump type water cooled water cooled no of speed 3 3 Sound pressure level Refer to technical data Refer to technical data Internal water volume 5 5 l 5 5 l Pressure relief valve water circuit 3 bar 3 bar Operation range water side heating 15 50 C 15 50 C cooling 5 22 C Operation range air side heating 20 25 C 2...

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