Daikin EHVH08SU18CB6W User Manual Download

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Installer reference guide

Daikin Altherma – Low temperature split

English

Installer reference guide

Daikin Altherma – Low temperature split

ERLQ004-006-008CA

EHVH08SU18CB6W
EHVH08SU26CB6W

Summary of Contents for EHVH08SU18CB6W

Page 1: ...Installer reference guide Daikin Altherma Low temperature split English Installer reference guide Daikin Altherma Low temperature split ERLQ004 006 008CA EHVH08SU18CB6W EHVH08SU26CB6W ...

Page 2: ...4 6 2 4 Installation site requirements of the domestic hot water tank kit 24 6 3 Preparing refrigerant piping 25 6 3 1 Refrigerant piping requirements 25 6 3 2 Refrigerant piping insulation 25 6 4 Preparing water piping 25 6 4 1 Water circuit requirements 25 6 4 2 Formula to calculate the expansion vessel pre pressure 27 6 4 3 To check the water volume and flow rate 27 6 4 4 Changing the pre press...

Page 3: ... Commissioning 74 9 2 Precautions when commissioning 74 9 3 Checklist before commissioning 74 9 4 Checklist during commissioning 74 9 4 1 To check the minimum flow rate 75 9 4 2 Air purge function 75 9 4 3 To perform a test run 76 9 4 4 To perform an actuator test run 76 9 4 5 Underfloor heating screed dryout 76 10 Hand over to the user 78 11 Maintenance and service 78 11 1 Overview Maintenance an...

Page 4: ... It could be too hot or too cold Give it time to return to normal temperature If you must touch it wear protective gloves Do NOT touch any accidental leaking refrigerant WARNING Provide adequate measures to prevent that the unit can be used as a shelter by small animals Small animals that make contact with electrical parts can cause malfunctions smoke or fire CAUTION Do NOT touch the air inlet or ...

Page 5: ...ant may only be charged after performing the leak test and the vacuum drying In case re charge is required refer to the nameplate of the unit It states the type of refrigerant and necessary amount The unit is factory charged with refrigerant and depending on pipe sizes and pipe lengths some systems require additional charging of refrigerant Only use tools exclusively for the refrigerant type used ...

Page 6: ...tible with the inverter resistant to high frequency electric noise to avoid unnecessary opening of the earth leakage protector NOTICE Precautions when laying power wiring Do NOT connect wiring of different thicknesses to the power terminal block slack in the power wiring may cause abnormal heat When connecting wiring which is the same thickness do as shown in the figure above For wiring use the de...

Page 7: ...its and remove their accessories About the units and options How to identify the units Possible combinations of units and options Application guidelines Various installation setups of the system Preparation What to do and know before going on site Installation What to do and know to install the system Configuration What to do and know to configure the system after it is installed Commissioning Wha...

Page 8: ...abel c Multilingual fluorinated greenhouse gases label d Unit mounting plate 3 3 Indoor unit INFORMATION This unit has been tested and approved according to BS EN12897 2016 3 3 1 To unpack the indoor unit 3 3 2 To remove the accessories from the indoor unit 1 Remove the screws at the top of the unit 2 Remove the top panel 3 Remove the screws at the front of the unit 4 Push on the button on the bot...

Page 9: ...To remove the accessories from the domestic hot water tank kit 1 1 2 1 a b c 1 d 2 1 f e g a Installation manual b Tundish c Water piping extension pieces for space heating IN and OUT sealings 38 27 2 mm EKVSU260A only d Water piping extension piece for domestic hot water OUT sealing 24 17 2 mm EKVSU260A only e Sealings for the flexible hoses of the domestic hot water tank kit 24 17 2 mm f Dischar...

Page 10: ...g up of the drain pan It is recommended to install this option in colder regions with possible low ambient temperatures or heavy snowfall For installation instructions see the installation manual of the drain pan heater INFORMATION In case the drain pan heater is used the jumper JP_DP on the service PCB on the outdoor unit MUST be cut After cutting the jumper you MUST reset the outdoor unit to act...

Page 11: ... sensor EKRTETS only in combination with the wireless thermostat EKRTR1 For installation intructions see the installation manual of the room thermostat and addendum book for optional equipment Digital I O PCB EKRP1HB The digital I O PCB is required to provide following signals Alarm output Space heating On OFF output Changeover to external heat source For installation instructions see the installa...

Page 12: ...n external temperature sensor 5 2 Setting up the space heating system The Daikin heat pump system supplies leaving water to heat emitters in one or more rooms Because the system offers a wide flexibility to control the temperature in each room you need to answer the following questions first How many rooms are heated by the Daikin heat pump system Which heat emitter types are used in each room and...

Page 13: ... Main External room thermostat for the main zone A 2 2 4 Code C 05 1 Thermo ON OFF When the used external room thermostat or heat pump convector can only send a thermo ON OFF condition Benefits Wireless The Daikin external room thermostat is available in a wireless version Efficiency Although the external room thermostat only sends ON OFF signals it is specifically designed for the heat pump syste...

Page 14: ...f the heat pump system is used to heat up one floor where all the rooms have the same heat emitters Under floor heating or radiators Thermostatic valves If you are heating up rooms with under floor heating or radiators a very common way is to control the temperature of the main room by using a thermostat this can either be the user interface or an external room thermostat while the other rooms are...

Page 15: ... will only supply leaving water temperature when there is an actual demand INFORMATION To increase comfort and performance Daikin recommends to install the valve kit option EKVKHPC on each heat pump convector Configuration Setting Value Unit temperature control A 2 1 7 Code C 07 1 Ext RT control Unit operation is decided by the external thermostat Number of water temperature zones A 2 1 8 Code 7 0...

Page 16: ... valve output The room temperature is controlled by the user interface which is used as room thermostat For the additional zone The heat pump convectors are directly connected to the indoor unit The desired room temperature is set via the remote controller of the heat pump convectors for each room The heating demand signals of each heat pump convector are connected in parallel to the digital input...

Page 17: ...HW tank n Heat exchanger coil o Booster heater FHL1 3 Under floor heating NOTICE Make sure the auxiliary boiler and its integration in the system complies with applicable legislation Daikin is NOT responsible for incorrect or unsafe situations in the auxiliary boiler system Make sure the return water to the heat pump does NOT exceed 55 C To do so Set the desired water temperature via the auxiliary...

Page 18: ...ys expressed as equivalent hot water volume at 40 C However you can set the DHW tank temperature at a higher temperature example 53 C which is then mixed with cold water example 15 C Selecting the volume and desired temperature for the DHW tank consists of 1 Determining the DHW consumption equivalent hot water volume at 40 C 2 Determining the volume and desired temperature for the DHW tank Determi...

Page 19: ...e tap The DHW pump and the installation are field supply and the responsibility of the installer For more information about connecting the recirculation connection see 7 Installation on page 30 Configuration For more information see 8 Configuration on page 48 You can program a schedule to control the DHW pump via the user interface For more information see the user reference guide 5 4 5 DHW pump f...

Page 20: ...ower meter that covers the entire system is sufficient Setup Connect the power meter to X5M 7 and X5M 8 Power meter type In case of Use a power meter Single phase outdoor unit Backup heater supplied from a single phase grid Single phase In other cases i e a three phase outdoor unit and or a backup heater connected to a three phase grid Three phase Example Single phase power meter Three phase power...

Page 21: ...em In some countries legislation limits the maximum power consumption for space heating and DHW production Pi t DI a b Pi Power input t Time DI Digital input power limitation level a Power limitation active b Actual power input Setup and configuration No additional equipment needed Set the power consumption control settings in A 6 3 1 via the user interface for the description of all settings see ...

Page 22: ...h Ce a b c d e A B C Ph Produced heat Ce Consumed energy A Outdoor unit B Booster heater C Backup heater a Limited outdoor unit operation b Full outdoor unit operation c Booster heater turned ON d Backup heater step 1 turned ON e Backup heater step 2 turned ON 5 7 Setting up an external temperature sensor You can connect one external temperature sensor It can measure the indoor or outdoor ambient ...

Page 23: ...00 350 mm 100 a a a Low sound cover NOTICE Do NOT stack the units on each other Do NOT hang the unit on a ceiling Strong winds 18 km h blowing against the outdoor unit s air outlet causes short circuit suction of discharge air This may result in deterioration of the operational capacity frequent frost acceleration in heating operation disruption of operation due to decrease of low pressure or incr...

Page 24: ...stall a snow cover or shed and a pedestal 6 2 3 Installation site requirements of the indoor unit INFORMATION Also read the precautions and requirements in the General safety precautions chapter The indoor unit is designed for indoor installation only and for ambient temperatures ranging from 5 35 C Mind the following measurements guidelines Maximum refrigerant piping length between indoor unit an...

Page 25: ... of the piping can cause malfunctioning of the unit Connecting piping Tools Only use appropriate tooling to handle brass which is a soft material If NOT pipes will get damaged Connecting piping Air moisture dust If air moisture or dust gets into the circuit problems may occur To prevent this Only use clean pipes Hold the pipe end downwards when removing burrs Cover the pipe end when inserting it t...

Page 26: ...and non brass properly so that they do NOT make contact with each other This to prevent galvanic corrosion Valve Separating circuits When using a 3 way valve in the water circuit make sure that the domestic hot water circuit and the floor heating circuit is fully separated Valve Change over time When using a 2 way valve or a 3 way valve in the water circuit the maximum change over time of the valv...

Page 27: ... by remotely controlled valves it is important that the minimum water volume is guaranteed even if all of the valves are closed FHL1 FHL2 FHL3 M1 T1 M2 T2 M3 T3 f d c b a f g h e a Outdoor unit b Indoor unit c Heat exchanger d Backup heater e Pump f Shut off valve g Collector field supply h By pass valve field supply FHL1 3 Floor heating loop field supply T1 3 Individual room thermostat optional M...

Page 28: ...0 3 0 10 bar 0 3 bar The corresponding maximum water volume at 0 3 bar is 410 l See the graph in the chapter above Because 350 l is lower than 410 l the expansion vessel is appropriate for the installation 6 5 Preparing electrical wiring 6 5 1 About preparing electrical wiring INFORMATION Also read the precautions and requirements in the General safety precautions chapter WARNING If the power supp...

Page 29: ... 1 Power supply for outdoor unit 2 Power supply and interconnection cable to indoor unit 3 Power supply for backup heater 4 Preferential kWh rate power supply voltage free contact 5 Normal kWh rate power supply to power the indoor unit PCB in the event of power supply interruption of the preferential kWh rate power supply 6 5 4 Overview of electrical connections for external and internal actuators...

Page 30: ...ATION Depending on the units and or the installation conditions it might be necessary to connect electrical wiring before you can charge refrigerant 7 2 Opening the units 7 2 1 About opening the units At certain times you have to open the unit Example When connecting the refrigerant piping When connecting the electrical wiring When maintaining or servicing the unit DANGER RISK OF ELECTROCUTION Do ...

Page 31: ...lowing chapters General safety precautions Preparation 7 3 3 To provide the installation structure Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise Fix the unit securely by means of foundation bolts in accordance with the foundation drawing If the unit is installed directly on the floor prepare 4 sets of M8 or M10 anchor bolts...

Page 32: ...allation manual of the low sound cover a b c a Low sound cover b Bottom parts of the low sound cover c U beams 7 3 4 To install the outdoor unit CAUTION Do NOT remove the protective cardboard before the unit is installed properly 1 Lift the outdoor unit as described in 3 2 2 To remove the accessories from the outdoor unit on page 8 2 Install the outdoor unit as follows 2 2 a a 1 a Air outlet NOTIC...

Page 33: ...ollowing figure NOTICE If the drain holes of the outdoor unit are blocked up provide space of at least 300 mm below the outdoor unit An additional drain pan kit EKDP008CA can be used to gather the drain water The drain pan kit consists of b a a Drain pan b U beams 283 mm 5 8 0 m m INFORMATION If you install the drain pan kit with or without drain pan heater in combination with the low sound cover ...

Page 34: ...for floor irregularities The maximum allowed deviation is 1 1 NOTICE Do NOT tilt the unit backwards 0 1 1 7 5 Connecting the refrigerant piping 7 5 1 About connecting the refrigerant piping Before connecting the refrigerant piping Make sure the outdoor and indoor unit are mounted Typical workflow Connecting the refrigerant piping involves Connecting the refrigerant piping to the outdoor unit Conne...

Page 35: ...ng and leaks a b c d a Torque wrench b Spanner c Piping union d Flare nut Piping size mm Tightening torque N m Flare dimensions A mm Flare shape mm Ø6 4 15 17 8 7 9 1 R 0 4 0 8 45 2 90 2 A Ø15 9 63 75 19 3 19 7 7 5 4 Pipe bending guidelines Use a pipe bender for bending All pipe bends should be as gentle as possible bending radius should be 30 40 mm or larger 7 5 5 To flare the pipe end CAUTION In...

Page 36: ...wrench Do NOT place the spanner on the stem cap as this could cause a refrigerant leak a b a Spanner b Torque wrench When it is expected that the operating pressure will be low e g when cooling will be performed while the outside air temperature is low sufficiently seal the flare nut in the stop valve on the gas line with silicon sealant to prevent freezing Silicon sealant make sure there is no ga...

Page 37: ...ed 7 6 2 Precautions when checking the refrigerant piping INFORMATION Also read the precautions and requirements in the following chapters General safety precautions Preparation NOTICE Use a 2 stage vacuum pump with a non return valve that can evacuate to a gauge pressure of 100 7 kPa 1 007 bar 5 Torr absolute Make sure the pump oil does not flow oppositely into the system while the pump is not wo...

Page 38: ...d greenhouse gases label and fixing it to the inside of the outdoor unit Completely recharging refrigerant Before completely recharging refrigerant make sure the following is done 1 All refrigerant is recovered from the system 2 The outdoor unit s external refrigerant piping is checked leak test vacuum drying 3 Vacuum drying on the outdoor unit s internal refrigerant piping is performed NOTICE Bef...

Page 39: ...ting the recirculation piping 2 Connecting the water piping to the indoor unit including the installation of the domestic hot water tank kit 3 Connecting the pressure relief valve of the domestic hot water tank to the drain 4 Filling the water circuit 5 Filling the domestic hot water tank 6 Insulating the water piping 7 8 2 Precautions when connecting the water piping INFORMATION Also read the pre...

Page 40: ...sure the drain valves are positioned between the shut off valves and the unit 1 Install the shut off valves on the space heating water pipes c a b a Space heating water out b Space heating water in c Domestic hot water out NOTICE It is recommended to install shut off valves to domestic cold water in and domestic hot water out connections These shut off valves are field supplied NOTICE To avoid dam...

Page 41: ... cold water inlet in accordance with the applicable legislation An expansion vessel should be installed on the cold water inlet in accordance with the applicable legislation 7 8 5 To connect the pressure relief valve to the drain INFORMATION Heating of the domestic hot water tank causes water to expand As a result the water pressure inside the tank can rise above the tank design pressure Also the ...

Page 42: ...iring to the indoor unit 4 Connecting the main power supply 5 Connecting the backup heater power supply 6 Connecting the user interface 7 Connecting the shut off valves 8 Connecting the electrical meters 9 Connecting the domestic hot water pump 10 Connecting the alarm output 11 Connecting the space heating ON OFF output 12 Connecting the changeover to an external heat source 13 Connecting the powe...

Page 43: ...me in contact with the piping and sharp edges INFORMATION To access the domestic hot water temperature sensor the switch box can be tilted The switch box should NOT be removed from the unit Routing Possible cables depending on unit type and installed options a Low voltage Preferential power supply contact User interface Power consumption digital inputs field supply Outdoor ambient temperature sens...

Page 44: ...backup heater power supply and the earth cable The backup heater capacity can vary depending on the indoor unit model Make sure that the power supply is in accordance with the backup heater capacity as listed in the table below Backup heater type Backup heater capacity Power supply Maximum running current Zmax Ω 6W 3 kW 1 230 V 13 A 6 kW 1 230 V 26 A a b 6 kW 3 230 V 15 A 6 kW 3N 400 V 8 6 A a Equ...

Page 45: ...w should be measured ALWAYS measure the resistance on the contactor clamps K1M K2M and K5M 3 kW 1 230 V 6 kW 1 230 V 6 kW 3 230 V 6 kW 3N 400 V K1M 1 K5M 13 52 9Ω 52 9Ω 52 9Ω K1M 3 105 8Ω K1M 5 105 8Ω 3 kW 1 230 V 6 kW 1 230 V 6 kW 3 230 V 6 kW 3N 400 V K1M 3 K1M 5 26 5Ω 26 5Ω 26 5Ω 105 8Ω K2M 1 K5M 13 26 5Ω 26 5Ω K2M 3 52 9Ω K2M 5 52 9Ω K2M 3 K2M 5 52 9Ω 52 9Ω 52 9Ω 52 9Ω K1M 5 K2M 1 Example meas...

Page 46: ...ear b a PCB 1 4B From the left a PCB b 1 4C From the top a b PCB b 1 4D From the top centre a PCB b b 1 a Notch this part for the wiring to pass through with nippers etc b Secure the wiring to the front part of the casing using the wiring retainer and clamp 7 9 10 To connect the shut off valve 1 Connect the valve control cable to the appropriate terminals as shown in the illustration below NOTICE ...

Page 47: ...B is required 2 Fix the cable with cable ties to the cable tie mountings 7 9 16 To connect the power consumption digital inputs 1 Connect the power consumption digital inputs cable to the appropriate terminals as shown in the illustration below X1M X2M 1 2 3 4 5 A8P X801M S6S S7S S8S S9S a a Installation of EKRP1AHTA is required 2 Fix the cable with cable ties to the cable tie mountings 7 9 17 To ...

Page 48: ...7 10 1 To finish the outdoor unit installation 1 Insulate and fix the refrigerant piping and interconnection cable as follows f b a e d c a Gas pipe b Gas pipe insulation c Interconnection cable d Liquid pipe e Liquid pipe insulation f Finishing tape 2 Install the service cover 7 10 2 To close the outdoor unit 1 Close the switch box cover 2 Close the service cover NOTICE When closing the outdoor u...

Page 49: ...t the PC cable to X10A therefore temporarily disconnect this other cable Do NOT forget to reconnect it afterwards 8 1 2 To access the most used commands To access the installer settings 1 Set the user permission level to Installer 2 Go to A Installer settings To access the overview settings 1 Set the user permission level to Installer 2 Go to A 8 Installer settings Overview settings To set the use...

Page 50: ...ation Data difference detected Please select action Send data Confirm Adjust 5 Select the required action Send data the user interface you are operating contains the correct data and the data on the other user interface will be overwritten Receive data the user interface you are operating does NOT contain the correct data and the data on the other user interface will be used to overwrite 6 The use...

Page 51: ...rid type and the relay setting must be set on the user interface Code Description A 2 1 5 5 0D BUH type 1 1P 1 1 2 6 kW 1 230 V 6W 3 3P 1 1 2 6 kW 3 230 V 6W 4 3PN 1 2 6 kW 3N 400 V 6W Relay setting Relay setting Backup heater operation If backup heater step 1 is active If backup heater step 2 is active 1 1 2 Relay 1 ON Relays 1 2 ON 1 2 Relay 1 ON Relay 2 ON Code Description A 5 1 3 4 07 Enable t...

Page 52: ...chieve the desired leaving water temperature a b a Add LWT zone b Main LWT zone Code Description A 2 1 9 F 0D When the space heating control is OFF by the user interface the pump is always OFF When the space heating control is On you can select the desired pump operation mode only applicable during space heating Pump operation mode 0 Continuous Continuous pump operation regardless of thermo ON or ...

Page 53: ...he installation and configuration on the user interface we distinguish its functionality DHW pump 0 No default NOT installed 1 Secondary rtrn Installed for instant hot water when water is tapped The end user sets the operation timing weekly schedule time of the domestic hot water pump when it should run Control of this pump is possible through the indoor unit 2 Disinf shunt Installed for disinfect...

Page 54: ...O PCB Modification of these settings is only needed when the optional digital I O PCB is installed The digital I O PCB has multiple functionality which need to be configured See 5 Application guidelines on page 12 Code Description A 2 2 6 1 C 02 Ext backup heat src Indicates if the space heating is also performed by means of another heat source than the system 0 No default NOT installed 1 Bivalent...

Page 55: ...r at nominal voltage Default 3 kW Range 0 10 kW in steps of 0 2 kW A 2 3 6 6 07 Bottom plate heater Only applies to an optional bottom plate heater EKBPHTH16A The capacity of the optional bottom plate heater at nominal voltage Default 0 W Range 0 200 W in steps of 10 W 8 2 5 Space heating control The basic required settings in order to configure the space heating of your system are described in th...

Page 56: ...er is required Leaving water temperature Additional zone Only applicable if 2 leaving water temperature zones are present Code Description A 3 1 2 1 N A LWT setpoint mode Fixed The desired leaving water temperature is NOT weather dependent i e does NOT depend on the outdoor ambient temperature fixed in time i e NOT scheduled Weather dep default The desired leaving water temperature is weather depe...

Page 57: ...rature on the user interface Moreover with the modulation turned on the desired leaving water temperature is lowered or raised in function of the desired room temperature and the difference between the actual and the desired room temperature This results in stable room temperatures exactly matching the desired temperature higher comfort level less On OFF cycles lower noise level higher comfort and...

Page 58: ...ximum temperature is NOT applicable during disinfection function See disinfection function 8 2 7 Contact helpdesk number Code Description 6 3 2 N A Number that users can call in case of problems 8 3 Advanced configuration optimization 8 3 1 Space heating operation advanced Preset leaving water temperature You can define preset leaving water temperatures economic denotes the desired leaving water t...

Page 59: ...04 1 C 4 C default 1 C Leaving water temperature compensation around 0 C In heating operation the desired leaving water temperature is locally increased around an outdoor temperature of 0 C This compensation can be selected when using an absolute or a weather dependent desired temperature see illustration below Use this setting to compensate for possible heat losses of the building due to the evap...

Page 60: ...low for detailed information on room frost protection in relation to the applicable unit control method C 07 2 room thermostat control Under room thermostat control room frost protection is guaranteed even if the room temperature home page is OFF on the user interface When room frost protection 2 06 is enabled and the room temperature drops below the room antifrost temperature 2 05 the unit will s...

Page 61: ...o default is NOT influenced by heating demand 1 Yes closes when there is NO heating demand INFORMATION The setting F 0B is only valid when there is a thermostat or external room thermostat request setting NOT in case of leaving water temperature setting Operation range Depending on the average outdoor temperature the operation of the unit in space heating is prohibited Space heating OFF temp When ...

Page 62: ... weather dependent operation the end user cannot adjust the desired tank temperature on the user interface Code Description A 4 6 N A Weather dependent desired tank temperature is Fixed default disabled All desired tank temperature are NOT weather dependent Weather dep enabled In scheduled or scheduled reheat mode the storage comfort temperature is weather dependent Storage economic and reheat tem...

Page 63: ...on is enabled and permission signal for auxiliary boiler is ON the booster heater will be restricted even when Ta 5 03 See C 02 3 default The booster heater is allowed when the heat pump is NOT active in domestic hot water operation Same as setting 1 but simultaneous heat pump domestic hot water operation and booster heater operation is not allowed 4 Booster heater operation is NOT allowed except ...

Page 64: ...g time for domestic hot water operation Domestic hot water heating stops even when the target domestic hot water temperature is NOT reached The actual maximum running time also depends on setting 8 04 When system layout Room thermostat control This preset value is only taken into account if there is a request for space heating If there is NO request for space heating the tank is heated until the s...

Page 65: ... 2 02 Start time 00 23 00 step 1 00 A 4 4 4 2 03 Temperature target 60 C fixed A 4 4 5 2 04 Duration 40 60 minutes default 40 minutes 00 00 22 00 24 00 01 00 23 00 t TDHW TH TU 2 02 2 03 2 04 TDHW Domestic hot water temperature TU User set point temperature TH High set point temperature 2 03 t Time WARNING Be aware that the domestic hot water temperature at the hot water tap will be equal to the v...

Page 66: ...wed for domestic hot water operation then put 4 00 on 1 5 00 on 1 and 5 01 on 15 C Auto emergency When the heat pump fails to operate the backup heater and booster heater can serve as an emergency heater and either automatically or non automatically take over the heat load When auto emergency is set to Automatic and a heat pump failure occurs The backup heater will automatically take over the heat...

Page 67: ...10 C default 3 C step 1 C It is recommended to choose C 04 bigger than the default value to have an optimal operation when choosing possibility 2 Depending on the used boiler the boiler efficiency should be chosen as follows Code Description A 6 A 7 05 0 Very high 1 High 2 Medium 3 Low 4 Very low INFORMATION Electricity price can only be set when bivalent is ON A 2 2 6 1 or C 02 These values can o...

Page 68: ... 15 C 35 C default 0 C Code Description N A 5 04 Set point correction for domestic hot water temperature set point correction for the desired domestic hot water temperature to be applied at low outdoor temperature when space heating priority is enabled The corrected higher set point will make sure that the total heat capacity of the water in the tank remains approximately unchanged by compensating...

Page 69: ...y D 00 Booster heater Backup heater Compressor 0 default Forced OFF Forced OFF Forced OFF 1 Permitted 2 Forced OFF Permitted 3 Permitted Safety thermostat INFORMATION The preferential kWh rate power supply contact is connected to the same terminals X5M 3 4 as the safety thermostat It is only possible for the system to have EITHER preferential kWh rate power supply OR a safety thermostat Code Descr...

Page 70: ...e default Backup heater and booster heater can operate simultaneously 1 BSH The booster heater is prioritized 2 BUH The backup heater is prioritized Power consumption control ENABLED 4 08 1 or 2 0 None default Depending on the power limitation level the booster heater will be limited first before the backup heater is limited 1 BSH Depending on the power limitation level the backup heater will be l...

Page 71: ... pump active when Ta 4 C pump will be activated for 10 minutes and deactivated after 10 minutes Daikin shall NOT be held liable for any damage resulting this functionality Code Description N A F 09 Pump continue operation when flow abnormality 0 Pump will be deactivated 1 Pump will be activated when Ta 4 C 10 minutes ON 10 minutes OFF Pump speed limitation Pump speed limitation 9 0D defines the ma...

Page 72: ...ion modes Running hours Version Energy metering Consumed elec Produced energy Error information Error history Contact helpdesk number Version User interface Indoor unit Outdoor unit User settings Display Temperature lock Set schedules Preset values Allowed operation mode Unit of measurement Display Contrast Backlit LCD time User profile Available home pages Set schedules Room temp LWT main LWT add...

Page 73: ...ter steps Forced off contact Unit control method Number of LWT zones Pump operation mode Power saving possible User interface location Options DHW operation Contact type main Contact type add Digital I O PCB Demand PCB External kWh meter External kWh meter DHW pump External sensor Leaving water Main Additional Delta T source Room thermostat Room temp range Room temp offset Ext room sensor offset O...

Page 74: ...r locally installed protection devices are installed according to this document and have NOT been bypassed The power supply voltage matches the voltage on the identification label of the unit There are NO loose connections or damaged electrical components in the switch box There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units Depending on the backup heater...

Page 75: ...omatically changes the pump speed and switches the position of the 3 way valve between the space heating and the domestic hot water heating mode Typical workflow Purging the air from the system should consist of 1 Performing a manual air purge 2 Performing an automatic air purge INFORMATION Start by performing a manual air purge When almost all the air is removed perform an automatic air purge If ...

Page 76: ...t water control are turned OFF via the user interface 3 Go to A 7 4 Installer settings Commissioning Actuator test run 4 Select an actuator and press Example Pump 5 Select OK and press Result The actuator test run starts It automatically stops when finished To stop it manually press select OK and press Possible actuator test runs Booster heater test Backup heater step 1 test Backup heater step 2 t...

Page 77: ...blank step is programmed OR when 20 consecutive steps have been executed To perform an underfloor heating screed dryout INFORMATION Preferential kWh rate power supply cannot be used in combination with underfloor heating screed dryout Prerequisite Make sure there is ONLY 1 user interface connected to your system to perform an underfloor heating screed dryout Prerequisite Make sure that the leaving...

Page 78: ...ork touch a metal part of the unit in order to eliminate static electricity and to protect the PCB 11 2 1 Opening the indoor unit CAUTION The front panel is heavy Be careful NOT to jam your fingers when opening or closing the unit You just need to remove the front panel of the unit to gain access to most parts which need maintenance In rare cases you may also need to remove the switch box 11 3 Che...

Page 79: ...de based disinfectant approved for use with water intended for human consumption NOTICE When using means for descaling or chemical disinfection it must be ensured that the water quality remains compliant with EU directive 98 83 EC Anode No maintenance or replacement required Pressure reducing valve of the domestic hot water tank kit Depending on local water conditions annual inspection of the inte...

Page 80: ... and make sure that All shut off valves of the water circuit are completely open The water filter is clean Clean if necessary There is no air in the system Purge air if necessary You can purge air manually see To perform a manual air purge on page 75 or use the automatic air purge function see To perform an automatic air purge on page 75 The water pressure is 1 bar The expansion vessel is NOT brok...

Page 81: ...r dealer If the water keeps running out of the unit close both the water inlet and outlet shut off valves first and then contact your dealer 12 3 6 Symptom The space is NOT sufficiently heated at low outdoor temperatures Possible causes Corrective action The backup heater operation is not activated Check and make sure that The backup heater operation mode is enabled Go to A 5 1 1 Installer setting...

Page 82: ... as required 12 3 11 Symptom The water from the hot taps is cold Possible causes Corrective action The thermal cut out s has have operated Check and reset the button s The indoor unit is NOT operating Check unit operation If any faults are suspected contact your dealer 12 3 12 Symptom The water discharge is intermittent Possible causes Corrective action Thermal control failure water will be hot Tu...

Page 83: ...tact your dealer J3 00 OU Malfunction of discharge pipe thermistor Please contact your dealer J6 00 OU Malfunction of heat exchanger thermistor Please contact your dealer Error code Detailed error code Description L3 00 OU Electrical box temperature rise problem Please contact your dealer L4 00 OU Malfunction of inverter radiating fin temperature rise Please contact your dealer L5 00 OU Inverter i...

Page 84: ...t function not completed correctly U4 00 Indoor outdoor unit communication problem U5 00 User interface communication problem U8 01 Connection with adapter lost Please contact your dealer UA 00 Indoor unit outdoor unit matching problem Power reset required UA 17 Tank type problem INFORMATION In case of error code AH and no interruption of the disinfection function occurred due to domestic hot wate...

Page 85: ...If you want to pump down the system and there is a leak in the refrigerant circuit Do NOT use the unit s automatic pump down function with which you can collect all refrigerant from the system into the outdoor unit Possible consequence Self combustion and explosion of the compressor because of air going into the operating compressor Use a separate recovery system so that the unit s compressor does...

Page 86: ...ve with drain fill valve delivered as accessory h Water filter i Space heating water IN 1 1 4 F BSP j Space heating water OUT 1 1 4 F BSP k Domestic hot water cold water IN 3 4 M BSP l Domestic hot water hot water OUT 3 4 F BSP m Low voltage wiring intake Ø24 mm n High voltage wiring intake power supply control signal Ø24 mm o Levelling feet p User interface option kit q Drain valve domestic hot w...

Page 87: ...ace heating water OUT 1 1 4 F BSP k Domestic hot water cold water IN 3 4 M BSP l Domestic hot water hot water OUT 3 4 F BSP m Low voltage wiring intake Ø24 mm n High voltage wiring intake power supply control signal Ø24 mm o Levelling feet p User interface option kit q Drain valve domestic hot water tank circuit r Recirculation connection G 1 2 female s Hole for the recirculation piping or options...

Page 88: ...4 0CuT 4 0CuT 4 0CuT 7 9CuT 7 9CuT 7 9CuT 6 4CuT 6 4CuT M P P 6 4CuT 3TW60815 1 OUTDOOR UNIT OUTDOOR AIR TEMPERATURE THERMISTOR HEAT EXCHANGER HEAT EXCHANGER THERMISTOR CAPILLARY TUBE 1 CAPILLARY TUBE 2 CAPILLARY TUBE 3 CAPILLARY TUBE 4 REFRIGERANT FLOW COOLING HEATING FIELD PIPING FIELD PIPING LIQUID STOP VALVE GAS STOP VALVE WITH SERVICE PORT FILTER FILTER MOTOR OPERATED VALVE MUFFLER WITH FILTE...

Page 89: ...gerant OUT d Plate heat exchanger e Shut off valve with drain fill valve f 3 way valve g Backup heater h Flow sensor i Pressure relief valve j Domestic hot water tank k Components in domestic hot water tank kit EKVSU180 260A k1 Pressure reducing valve k2 Pressure relief valve k3 Expansion vessel 1 k4 Expansion vessel 2 l Heat exchanger m Filter n Air purge o Expansion vessel p Safety valve q Manom...

Page 90: ...r M1F Fan motor MR30 MR306 MR307 MR4 Magnetic relay MRM10 MRM20 Magnetic relay MR30_A MR30_B Connector N Neutral PCB1 Printed circuit board main PCB2 Printed circuit board inverter PCB3 Printed circuit board service Q1DI Earth leakage circuit breaker Q1L Overload protector R1T Thermistor discharge R2T Thermistor heat exchanger R3T Thermistor air S1NPH Pressure sensor S1PH High pressure switch S2 S...

Page 91: ...xt thermistor External thermistor Heat pump convector Heat pump convector Position in switch box English Translation Position in switch box Position in switch box Legend A1P Main PCB A2P User interface PCB A3P On OFF thermostat PC power circuit A3P Heat pump convector A4P Digital I O PCB A4P Receiver PCB Wireless On OFF thermostat A5P Anode driver PCB A8P Demand PCB DS1 A8P DIP switch F1B Overcurr...

Page 92: ...Safety thermostat contact 16 V DC detection voltage supplied by PCB Shut off valve Shut off valve Switch box Switch box 6 Booster heater power supply 6 Booster heater power supply English Translation 7 Option PCBs 7 Option PCBs Alarm output Alarm output Changeover to ext heat source Changeover to external heat source Max load Maximum load Min load Minimum load Only for Only for Only for demand PCB...

Page 93: ... for KRTW wired room thermostat External sensor floor or ambient 2 core 4 core communication 2 core 4 core main X2M 1 4 add X2M 1a 4 main X2M 1 3 4 add X2M 1a 3 4 main X2M 1 4 add X2M 1a 4 Only for KRP1AHTA 2 core 2 core 2 core 2 core Optional part External room thermostat Heat pump convector main and or additional zone Field supply Power limitation demand input 4 Power limitation demand input 3 P...

Page 94: ...n vessels pre charge pressure in domestic hot water tank kit 2 5 bar Expansion valve setting 8 bar Temperature and pressure relief valve Set opening temperature 90 95 C Set opening pressure 10 bar Replacement part number 302810P Operating temperature of thermal cut out when installed with ERHQ or ERLQ 79 85 C Primary heating power input 24 5 kW 21 1 kW Primary flow rate to reach primary heating po...

Page 95: ...090626 1 A External static pressure B Water flow rate C Operation range Operation area is extended to lower flow rates only in case the unit operates with heat pump only Not in startup no backup heater operation no defrost operation ESP External static pressure kPa in the space heating cooling circuit Flow Water flow through the unit in the space heating cooling circuit Notes Selecting a flow outs...

Page 96: ...tain product or application explaining how to install configure and maintain it Operation manual Instruction manual specified for a certain product or application explaining how to operate it Maintenance instructions Instruction manual specified for a certain product or application which explains if relevant how to install configure operate and or maintain the product or application Accessories La...

Page 97: ...1 8 Field settings table Applicable indoor units EHVH04SU18CB6W EHVH08SU18CB6W EHVH08SU26CB6W EHVH11SU26CB6W EHVH16SU26CB6W Notes 1 04 08 2 11 16 4P449983 1 2016 06 ...

Page 98: ...1 C 35 C 7 7 2 1 0 01 Set weather dependent heating Leaving water value for low ambient temp for LWT add zone heating WD curve R W 9 05 9 06 C step 1 C 45 C 7 7 2 1 0 02 Set weather dependent heating High ambient temp for LWT add zone heating WD curve R W 10 25 C step 1 C 15 C 7 7 2 1 0 03 Set weather dependent heating Low ambient temp for LWT add zone heating WD curve R W 40 5 C step 1 C 10 C Ins...

Page 99: ...7 9 0B R W 0 Quick 1 Slow Additional A 3 1 2 1 R W 0 Fixed 1 Weather dep 2 Fixed scheduled 3 WD scheduled A 3 1 2 2 1 9 05 Temperature range Minimum temp heating R W 15 37 C step 1 C 25 C A 3 1 2 2 2 9 06 Temperature range Maximum temp heating R W 37 depending on outdoor unit step 1 C 55 C Delta T source A 3 1 3 1 9 09 R W 3 10 C step 1 C 5 C Room thermostat A 3 2 1 1 3 07 Room temp range Minimum ...

Page 100: ...A 6 3 5 4 5 08 Amp limits for DI Limit DI4 R W 0 50 A step 1 A 50 A A 6 3 6 1 5 09 kW limits for DI Limit DI1 R W 0 20 kW step 0 5 kW 20 kW A 6 3 6 2 5 0A kW limits for DI Limit DI2 R W 0 20 kW step 0 5 kW 20 kW A 6 3 6 3 5 0B kW limits for DI Limit DI3 R W 0 20 kW step 0 5 kW 20 kW A 6 3 6 4 5 0C kW limits for DI Limit DI4 R W 0 20 kW step 0 5 kW 20 kW A 6 3 7 4 01 R W 0 None 1 BSH 2 BUH Averagin...

Page 101: ...R W 0 20 C step 1 C 10 C A 8 5 05 R W 0 50 A step 1 A 50 A A 8 5 06 R W 0 50 A step 1 A 50 A 4 02 R W Do not change this value Is the installer on site Low ambient temp for LWT main zone heating WD curve High ambient temp for LWT main zone heating WD curve Leaving water value for low ambient temp for LWT main zone heating WD curve Leaving water value for high ambient temp for LWT main zone heating...

Page 102: ...C A 8 9 07 5 A 8 9 08 22 A 8 9 09 R W 3 10 C step 1 C 5 C A 8 9 0A 5 A 8 9 0B R W 0 Quick 1 Slow A 8 9 0C R W 1 6 C step 0 5 C 1 C What is the hysteresis to be used in reheat mode Boiler efficiency What is the requested limit for DI3 What is the requested limit for DI4 What is the requested limit for DI1 What is the requested limit for DI2 What is the requested limit for DI3 What is the requested ...

Page 103: ... kWh A 8 D 09 R W 0 No 1 0 1 pulse kWh 2 1 pulse kWh 3 10 pulse kWh 4 100 pulse kWh 5 1000 pulse kWh A 8 D 0A 0 A 8 D 0B 2 A 8 D 0C R W 0 49 0 A 8 D 0D R W 0 49 0 A 8 D 0E R W 0 49 0 A 8 E 00 R O 0 5 0 LT split A 8 E 01 R O 0 8 1 16 A 8 E 02 R O 0 1 1 Type 2 A 8 E 03 R O 0 No BUH 1 1 step 2 2 steps What is the high electricity price Do not use What is the medium electricity price Do not use What i...

Page 104: ...W 0 No 1 Yes A 8 F 05 0 A 8 F 06 0 A 8 F 09 R W 0 Disabled 1 Enabled A 8 F 0A 0 A 8 F 0B R W 0 No 1 Yes A 8 F 0C 1 A 8 F 0D R W 0 Continuous 1 Sample 2 Request What kind of DHW tank is installed Power saving function for outdoor unit Pump operation allowed outside range Bottom plate heater ON temperature Bottom plate heater hysteresis Is a bottom plate heater connected Is the power saving function...

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Daikin EHVH08SU18CB6W, Installer'S Reference Manual

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