INSTALLATION MANUAL
Contents
1. Accessories supplied with the EKUSWW option kit for the sanitary water tank 1 Pressure reducing valve with integrated non return valve line strainer and expansion relief valve 2 Blind stop 2 plastic screw on closing caps for pressure reducing valve 3 T piece 1 2 Female BSP x 15 mm x 15 mm 4 Expansion vessel of 18 litres 5 Tundish 6 Elbow Drain valve 22 mm x 3 4 Male BSP 7 8 9 Instruction sheet Refer to the manual Solenoid 2 way valve 3 4 Female BSP x 3 4 Female BSP 1 Hot water connection Fpiece22mm xH2 Female BSP x22 mm 2 Temperature and pressure relief valve 10 T piece 22 mm x 22 mm x 22 mm 3 Electrical box 11 Adaptor 1 2 Male BSP x 15 mm 4 Electrical box lid 12 Adaptor 22 mm x 3 4 Female BSP 5 Booster heater 43 Expansien etiet valvet e Male BSP x 2 Female BSP 6 Threaded thermistor hole 7 Flow inlet connection 8 Heat exchanger coil 9 Return outlet connection 10 Cold water connection 11 Warning label EKUSWW EKSWWU150 300V3 DAIKIN Installation manual Sanitary water tank with option kit for air to water heat pump system 4PW37176 1 Safety devices m The sanitary tank relief valve connections should not be used for other purpose B Donot install heaters without thermal cut outs Outlook diagram m Thermal protector The booster heater in the sanitary water2. e In case the water keeps running out of the unit close both the water inlet and outlet shut off valves first and then contact your local Daikin dealer Installation manual DAIKIN 9 EKUSWW EKSWWU150 300V3 Sanitary water tank with option kit for air to water heat pump system 4PW371 76 1 TECHNICAL SPECIFICATIONS General Operation range air side Heating cooling models EKHBX Heating only models EKHBH e sanitary water by heat pump 15 35 C 4 15 35 C 4 a Down to 20 C by booster heater and up to 43 C by booster heater Sanitary water tank specifications EKSWWU150V3 EKSWWU200V3 EKSWWU300V3 e Storage capacity e Overall dimensions x H e Booster heater power supply 150 580 x 1015 mm 230 V 50 Hz 1P 200 285 580 x 1265 mm 580 x 1715 mm 230 V 50 Hz 1P 230 V 50 Hz 1P running current 13 A 13 A 13 A Capacity 3 kW 3 kW 3 kW e Operating pressure 2 1 bar 2 1 bar 2 1 bar e Maximum primary working pressure heating side 2 5 bar 2 5 bar 2 5 bar e Expansion vessel pre charge pressure 2 5 bar 2 5 bar 2 5 bar e Preset opening pressure of expansion relel valve 8 bar 8 bar 8 bar e Preset opening temperature of RES RES JES temperature and pressure relief valve ein eRe oe e Set opening pressure of temperature and pressure relief valve ue De pe 10 bar Connections 3 4 FBSP 3 4 FBSP 3 4 FBSP e Weight
3. of this kit so that the expansion vessel is ready for installation Manually operate the temperature and pressure relief valve to ensure free water flow through discharge pipe Turn knob left Water main in 7 Fit the elbow drain valve part 6 of this kit in the cold water connection lt C gt of the sanitary water tank Position the Pressure reducing valve with integrated non return valve line strainer and expansion relief valve part 1 of this kit see also procedure step 2 as high as possible and connect it to the water mains inlet m The pressure reducing valve must be installed higher than the temperature and pressure relief m The pressure reducing valve must be installed with the discharge from the expansion valve horizontal if fitted inverted debris may be deposited on the seat and cause fouling of the seat when the valve operates Check direction of flow arrows Fit a length of copper tube 22 mm field supply inbetween the elbow drain valve procedure step 4 and the pressure reducing valve Make sure to provide for a connection on this pipe to the expan sion vessel part 10 of this kit Fit a length of copper tube 22 mm field supply inbetween the T piece part 10 of this kit and the pre assembled expansion vessel procedure step 5 and 8 Discharge 10 11 12 Install the tundish in a vertical position within a maximum of 500 mm away from the temperature and pressure relief valve and press
4. 2 way valve is wired up properly as described in Connections to be made in the sanitary water tank electrical box on page 4 After completing the installation the installer has to fill in the warning label on the tank with indelible ink Refer to Main components on page 2 for location of the warning label M Do not remove _ Contact the installen re E Should the system develop a rault swi contact the installer NJ WARNING TO INSTALLER BS eee a B This installation is subject to building regulation approval notify Local Authority of intention to install B Use only manufacturer s recommended spare parts Contact your local Daikin dealer B Installed by name address tel No completion date COMMISIONING Filling up Follow the next steps to fill up the tank 1 O O A Q Switch off the power supply Open each hot water tap in turn to expel air from the system pipe work Open the cold water supply valve Check for leaks Close all water taps if all air is expelled Manually operate the temperature and pressure relief valve to ensure free water flow through the discharge pipe turn knob left Refer to Main components on page 2 for location of the temperature and pressure relief valve EKUSWW EKSWWU150 300V3 Sanitary water tank with option kit for air to water heat pump system 4PW37176 1 DAIKIN Installation manual Draining Follow the next steps to drain the tank 1
5. D altnerma by A DAIKIN INSTALLATION MANUAL Sanitary water tank with option kit for air to water heat pump system Do not use the installation manual supplied with the EKSWWU sanitary water tank but use this manual instead EKSWWU150V3 EKSWWU200V3 EKSWWU300V3 EKUSWW EKSWWU150V3 EKUSWW EKSWWU200V3 EKSWWU300V3 CONTENTS Page Introduction tec iscsccccvnctancenteshteducdwsccticsentadhosisiodviaswneseccnedeesosiaasaneseacacteccest 1 General information 6 gc disswasusneswsnahasedesainandsewnsshyaeasidanswddeounssvsgiadaeeae 1 Scope Of this MANMUAl sassen ekain ie kidde 1 Model identification sccasivsarasaniunapiaesdiiamneanaduvpnlacssnavanaanaduvgiiwbetiadeudls 1 PS OFS orca ccesddicadicdacissannacendacideaduddeanuanbiiaiticnadaaaiauinadithdaddaagasasics 2 Accessories supplied with the EKSWWU sanitary water tank 2 Accessories supplied with the EKUSWW option kit for the sanitary water tank ccsscccceessssseeeeeesesseeeeseeseenseeesees 2 Installation of the EKSWWU sanitary water tank 2 Main COMDONSMS rset ioa a sede 2 ER EI sseni A sss nan rts deens 3 Installation guidelines enteren eeen aanhe aid 3 Installing the sanitary water tank nnen nennen 4 Connecting the water CIFCUI S aaerereennnnrererrsenstenssrenrtenndsnddngsnes 4 POR IT e dessen eeeh enne 4 Installation of the option kit on the Sanitary water tank ri Piping FOQU
6. INGIVIGCNIS cisancaasesonconesnctsarensecvoasadaanndceteaneamsasasxenceseoae d Installation procedure of the option kit nne 8 olan andel se ecc G 8 P O O ee E E 8 OENE EE A A AA A NE E T A E A E E 9 YEE E E EEA E EE E T asen 9 TOUDIESNOOIN sisi a g Technical Specifications ssoi caseira aniei 10 CN P E SEL chen EAE EL A ENA EE A E AAA AET T 10 Sanitary water tank specifications u ssnnnn vennen senen 10 PS wiring CAGES esiones E 10 Sanitary water tank with option kit for air to water heat pump system A READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION KEEP THIS MANUAL IN A HANDY PLACE FOR FUTURE REFERENCE PLEASE LEAVE THIS MANUAL WITH THE EKSWWU SANITARY WATER TANK AFTER INSTALLATION IMPROPER INSTALLATION OR ATTACHMENT OF EQUIPMENT OR ACCESSORIES COULD RESULT IN ELECTRIC SHOCK SHORT CIRCUIT LEAKS FIRE OR OTHER DAMAGE TO THE EQUIPMENT BE SURE ONLY TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE SPECIFICALLY DESIGNED FOR USE WITH THE EQUIPMENT AND HAVE THEM INSTALLED BY A PROFESSIONAL IF UNSURE OF INSTALLATION PROCEDURES OR USE ALWAYS CONTACT YOUR DAIKIN DEALER FOR ADVICE AND INFORMATION THE UNIT DESCRIBED IN THIS MANUAL IS DESIGNED FOR INDOOR INSTALLATION ONLY AND FOR AMBIENT TEMPERATURES RANGING 0 C 35 C Installation manual INTRODUCTION General information Thank you for purchasing this attherma vyoamin EKSWWU sanitary water tank The altherma pypamin Sanitary water tank m
7. Safe visible position without forming any risk to persons in the vicinity If in any doubt refer to Building Regulation G3 T Do not install any valves between the sanitary water tank and relief valves expansion vessel Installation manual 7 DAIKIN EKUSWW EKSWWU150 300V3 Sanitary water tank with option kit for air to water heat pump system 4PW37176 1 Installation procedure of the option kit 1 Locate the sanitary water tank in a suitable position to facilitate the installation of water supply discharge fittings and pipework It is therefor recommended to first read through this whole procedure Refer to the figure on the facing page at the start of this chapter for full understanding of next procedure steps Pre assembly 2 Pre assemble the pressure reducing valve part 1 of this kit by mounting the blind stop and the 2 black plastic screw on closing caps part 2 of this kit so that the pressure reducing valve is ready for installation The black plastic plugs in the Pressure reducing valve body are pressure gauge connections to enable pressure monitoring to be carried out should the system develop a fault It is recom mended that these be accessible the pressure reducing valve has two only one need be accessible Pre assemble the T piece and tundish parts 3 and 5 of this kit so that tundish is ready for installation Pre assemble the adaptor and expansion vessel part 12 and 4
8. Switch off the power supply 2 Turn off the cold water supply valve 3 Open the hot water taps 4 Open the drain valve MAINTENANCE In order to ensure optimal availability of the unit a number of checks and inspections on the unit and the field wiring have to be carried out at regular intervals Before carrying out any maintenance or repair activity always switch off the circuit breaker on the supply panel remove the fuses or open the protection devices of the unit A E m Make sure that before starting any maintenance or repair activity also the power supply to the outdoor unit is switched off The described checks must be executed at least once a year 1 Sanitary water tank booster heater It is advisable to remove lime buildup on the booster heater to extend its life soan especially in regions with hard water To do so drain the sanitary water tank remove the booster heater from the sanitary water tank and immerse in a bucket or similar with lime removing product for 24 hours 2 Temperature and pressure relief valve Check for correct operation of the temperature and pressure relief valve Manually operate the temperature and pressure relief valve to ensure free water flow through discharge pipe Turn knob left 3 Pressure reducing valve with integrated non return valve line strainer and expansion relief valve Check for correct operation of the expansion relief valve Manu ally operate the expansion
9. connection Threaded thermistor hole Flow inlet connection see also Installation guidelines on page 3 regarding pipe size to use 4 Return outlet connection see also Installation guidelines on page 3 regarding pipe size to use Cold water connection Temperature and pressure relief valve connection Cable hole to fit PG nipple and nut into for cable connections of booster heater power supply and thermal protection cable 8 Cable hole to fit PG nipple and nut into for cable connections of solenoid valve power supply 9 Cable hole to fit PG nipple and nut into for cable connections of solenoid valve Sanitary water tank model H1 H2 EKSWWU150V3 900 1015 EKSWWU200V3 1150 1265 EKSWWU300V3 1600 1715 Installation guidelines Keep in mind the following guidelines when installing the sanitary water tank m The installation location is frost free m Make sure to make the piping in size 1 or more and reduce to 3 4 at the inlet of the tank as to have sufficient water volume in the piping between indoor unit and sanitary water tank m Locate the sanitary water tank in a suitable position to facilitate easy maintenance remember access is required to the electrical box Installation manual DAIKIN 3 EKUSWW EKSWWU150 300V3 Sanitary water tank with option kit for air to water heat pump system 4PW371 76 1 B The sanitary water tank model Z EKSWWU150V3 can be floor or wall mounted In case of wall mounting wall mounti
10. empty 38 kg 46 kg 60 kg when full 188 kg 246 kg 345 kg e Mounting Wall or floor Floor Floor e Supply temperature time 1 hr 15 min 1 hr 41 min 2 hr 26 min e Maximum water supply pressure 8 bar 8 bar 8 bar Re heat time 1 hr 5 min 1 hr 29 min 2 hr 8 min a FBSP Female British Standard Pipe b The time it takes to increase the temperature from 15 C to 60 C c The time it takes to increase 70 of the contents of the vessel back up to 60 C Field wiring diagram ee BAR eetset Booster heater solenoid l ie ROB ee Fuse booster heater YIS TUERA Fuse 5 A 250 V nn E z KOM enen noen Contactor booster heater l sanitary water tank Eg indoorunit S Lveeseseseseseeseenes Life electrical box switch box l N Neutral GiT Neenee B OND eee reer Thermostat sanitary water tank l l l i i i OZ E Thermal protector booster heater On Thermal protector sanitary water tank YIO annen Solenoid valve l l z ENE Terminal block X5M X7M Terminal block l i l i xM reu RY Sf TR eneen Protective earth l Page a N K3M EEN Field wiring vj i 7 a xm Lj a L eeen ere EKUSWW EKSWWU150 300V3 DAIKIN Installation manual Sanitary water tank with option kit for air to water heat pump system 4PW37176 1 10 DAIKIN EUROPE NV Zandvoordestraat 300 B 8400 Oostende Belgium 4PW371 76 1
11. ensed electrician and must comply with relevant European and national regulations m The field wiring must be carried out in accordance with the wiring diagram sticker supplied with the unit and the instructions given below m The sanitary water tank must be earthed via the indoor unit Power circuit and cable requirements Connections to be made in the sanitary water tank electrical box 1 Prior to upwiring Make sure to ensure strain relief of all cables by correctly mount ing the PG nipples and PG nuts accessories supplied with the sanitary tank parts 4 1 Cable hole to fit PG nipple and nut into for cable connections of booster heater power supply and thermal protection cable 2 Cable hole to fit PG nipple and nut into for cable connections of solenoid valve power supply 3 Cable hole to fit PG nipple and nut into for cable connections of solenoid valve 2 Booster heater power supply Connect the booster heater power supply and thermal protection cable as shown in the wiring diagram A below Wiring diagram A A m Be sure to use a dedicated power circuit Never use a power circuit shared by another appliance DODOS m Use one and same dedicated power supply for the vyvvy outdoor unit indoor unit backup heater and sanitary 8 7 l21 22 water tank En Bp BLK Black BLU BI For cable requirements and specifications refer to Field wiring in i the indoor unit installation manual supp
12. it is described in the indoor unit operation manual Model identification Sanitary water tank optional Booster heater voltage V3 1P 230 V Indication of storage capacity Special version for United Kingdom only Standard version when no letter is mentioned Sanitary Warm Water European Kit Installation manual DAIKIN EKUSWW EKSWWU150 300V3 Sanitary water tank with option kit for air to water heat pump system 4PW37176 1 ACCESSORIES Accessories supplied with the EKSWWU sanitary water tank INSTALLATION OF THE EKSWW U SANITARY WATER TANK Thermistor connection wire 12 m Prewired contactor and circuit breaker assembly Contactor fixing screw PG nipple and nut ao A WO N Installation manual A m The total attherma by parkin System indoor unit and outdoor unit is designed for combination with an altherma y parkin Sanitary water tank In case another tank or a spare part other than native Daikin is being used in combination with the altherma y park n indoor unit Daikin cannot guarantee neither good operation nor reliability of the system For those reasons Daikin cannot give warranty of the system in such case m For safety reasons it is not allowed to add ethylene glycol to the water circuit Adding ethylene glycol might lead to contamination of the sanitary water if a leakage would occur in the heat exchanger coil Main components
13. lied with the EKHB X unit BRN Brown YLW GRN _ Yellow green NOTE Select the power cable in accordance with relevant u local and national regulations Thermistor cable The distance between the thermistor cable and power supply cable must always be at least 5 cm to prevent electromagnetic interference on the thermistor cable EKUSWW EKSWWU150 300V3 DAIKIN Installation manual Sanitary water tank with option kit for air to water heat pump system 4PW37176 1 4 Solenoid valve power supply Connect the solenoid valve power supply cable as shown in the wiring diagram B below Wiring diagram B indoor unit switch box Solenoid valve Connect the solenoid valve as shown in the wiring diagram C below Wiring diagram C solenoid jo valve coil Connections to be made in the indoor unit switch box 5 10 11 12 Mount the prewired contactor K3M and circuit breaker F2B The contactor should be fixed with the two screws supplied Connect the loose ends of the contactor to terminal 7 and 8 on the terminal block and the connector in the socket X13A on the PCB Plug the thermistor cable connector in the socket X9A on the PCB Connect the booster heater power supply and thermal protection cable field supply to terminal 7 8 21 22 and earth on the terminal block Connect the solenoid valve power supply cable to terminal block X7M as shown on Wiring diagram B in paragraph Connections to be made in the sani
14. ng certain troubles which may occur in the unit Before starting the trouble shooting procedure carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring Before contacting your local dealer read this chapter carefully it will save you time and money When carrying out an inspection on the supply panel or on the switch box of the unit always make sure that the circuit breaker of the unit is switched off When a safety device was activated stop the unit and find out why the safety device was activated before resetting it Under no circum stances safety devices may be bridged or changed to a value other than the factory setting If the cause of the problem cannot be found call your local Daikin dealer Symptom 1 No water flow from hot taps CORRECTIVE ACTION Check that all shut off valves of the water circuit are completely open POSSIBLE CAUSES The main water supply is off The strainer is blocked Turn off the water supply remove and clean the strainer see Pressure reducing valve with integrated non return valve line strainer and expansion relief valve on page 9 on how to do this The cold water inlet pressure reducing valve is not fitted properly Check and refit as required see Pressure reducing valve with integrated non return valve line strainer and expansion relief valve on page 9 on how to do this S
15. ng kit EKWBSWW150 is required separate ordering m If installing an EKSWWU sanitary water tank installing the option kit EKUSWW is obligatory Refer to the UK Building Regulation G3 Procedure A Switch off the power supply before making any connections Installing the sanitary water tank 1 Check if all sanitary water tank accessories see Accessories on page 2 are enclosed 2 When floor mounting place the sanitary water tank on a level surface When wall mounting only for EKSWWU150V3 model make sure the wall is sturdy In both cases make sure the tank is mounted level 3 Apply contact glue to the thermistor and insert the thermistor as deep as possible in the thermistor socket Fix using the nut provided Connecting the water circuits Refer to the chapter Typical application examples described in the installation manual delivered with the indoor unit for details on connecting the water circuits and the motorised 3 way valve NOTE To install adequate connections between the indoor hm unit and the sanitary water tank it is important that the 3 way valve is fitted correctly Refer to Installation of the option kit on the Sanitary water tank on page 7 for details on installation in accordance with relevant local and national regulations Field wiring Also refer to Field wiring diagram on page 10 A Bm All field wiring and components must be installed by a lic
16. relief valve to ensure free water flow through discharge pipe Turn knob left Depending on local water conditions annual inspection of the integral line strainer pressure reducing valve cartridge expan sion relief valve cartridge and seating may be necessary m Pressure reducing valve Unscrew the retaining nut of the valve The complete operating mechanism including the strainer can be removed Clean the filter mesh and cartridge under running water Replace cartridge ensuring that strainer is correctly located and reassemble the unit m Expansion relief valve Check for correct operation of the expansion relief valve Manu ally operate the expansion relief valve to ensure free water flow through discharge pipe Turn knob left Depending on local water conditions annual inspection of the expansion relief valve cartridge and seating may be necessary Unscrew the expansion relief headwork from valve body Clean valve seat face and seating do not scratch or damage either seat face or seating Refit in reverse order Do not over tighten 4 Indoor unit switch box m Carry out a thorough visual inspection of the switch box and look for obvious defects such as loose connections or defective wiring m Check for correct operation of contactor K3M by use of an ohmmeter All contacts of this contactor must be in open position TROUBLESHOOTING This section provides useful information for diagnosing and correct i
17. s must be flushed free of all flux and debris prior to the fitting of controls of this option kit Failure to do this may cause irrepairable damage to the controls m All cautions as under chapter Installation of the EKSWWU sanitary water tank on page 2 remain of extreme importance and are equally valid in this chapter Piping requirements Tundish Install the tundish in a vertical position within a maximum of 500 mm away from the temperature and pressure relief valve and pressure reducing valve Tundish pipework Tundish pipework must be 22 mm metal pipe with a minimum vertical length of 300 mm below the tundish Maximum permit ted equivalent length of 22 mm pipework is 9 m Each bend or elbow is equivalent to 0 8 m of pipework All pipework must have a continuous fall Fixed grating Trapped effluent water VILL Sizing of copper discharge pipe D2 for common temperature relief valve outlet sizes Maximum resistance allowed expressed as a Valve Discharge pipe length of straight Resistance pipe i e no created by each elbows or bends elbow or bend up to 9 m 0 8 m outlet Discharge pipe size D2 size size D1 from tundish G1 2 15 mm 22 mm Requirements to discharges m Discharge piping tundish drain valves etc must be positioned away from any electrical components m The discharge pipe away from the tundish must terminate in a
18. tank is equipped with a thermal protector setting 85 C m Secondary thermal protector solenoid 2 way valve The thermal protector will close the solenoid 2 way valve setting 85 C Both thermal protectors are activated when the temperature becomes too high When activated the protectors have to be reset on the sanitary water tank by pressing the red button for access remove the electrical box lid A The electrical box lid must only be opened by a licensed electrician Switch off the power supply before opening the electrical box lid B Thermostat solenoid 2 way valve The thermostat will close the solenoid 2 way valve when the temperature becomes too high setting 75 C B Temperature and pressure relief valve The temperature and pressure relief valve prevents excessive water temperature gt 95 C and excessive water pressure gt 10 bar in the sanitary water tank m Pressure relief valve option kit The pressure relief valve prevents excessive water pressure 8 bar in the water circuit NOTE Refer to Installation of the option kit on the Sanitary u water tank on page 7 for connection of other safety devices in accordance with relevant local and national regulations l 1 2 BSP 6 314 BSP 1 1 2 BSP D 2 A H2 H1 3 630 4 A 5 220 4 110 0 y Y Y y Y A 0 40 580 1 Hot water
19. tary water tank electrical box on page 4 Connect the booster heater power supply cable to the circuit breaker F2B and earthing screw Fix the cables to the cable tie mountings with cable ties to ensure strain relief Set DIP switch SS2 2 on the PCB to ON See DIP switch settings overview in the indoor unit installation manual supplied with the EKHBH X unit for more information Note only relevant field wiring is shown 000 00000 oon OOO000g C Le so a0 Ea ore ETEN 50 mm ON A LNE vy 280 V AC x5M JAN a 7 l RAA DOODDE Installation manual 5 DAIKIN EKUSWW EKSWWU150 300V3 Sanitary water tank with option kit for air to water heat pump system 4PW37176 1 NOTES EKUSWW EKSWWU150 300V3 DAIKIN Installation manual Sanitary water tank with option kit for air to water heat pump system 6 4PW37176 1 INSTALLATION OF THE OPTION KIT ON THE SANITARY WATER TANK A B All pipework and fitting
20. ure reducing valve Procedure step 3 Make sure that you install it so that you can still connect the 1 2 outlet of the expansion relief valve on the pressure reducing valve and the horizontal inlet of the T piece on top of the tundish Procedure step 11 Connect a metal discharge pipe 15 mm field supply from the temperature and pressure relief valve to the vertical inlet of the T piece on top of the tundish lt 500 mm 13 Connect a discharge pipe from the tundish Refer to paragraph Tundish pipework on page 7 All pipework must have a continuous fall and be fitted conform to the requirements of the Building Regulation G3 Flow inlet connection 14 15 16 Fit the solenoid 2 way valve part 8 of this kit on a minimum length of 3 4 threaded pipe connector not supplied with the kit for screwing into the 3 4 FBSP flow inlet connection lt F gt of the sanitary water tank Also refer to Installation guidelines on page 3 m The valve must be mounted so that the valve head is above horizontal level of pipework to prevent that in the highly unlikely event of a leak a safety hazard results m Check direction of the flow arrow cast on the solenoid valve body m Do not grip the valve head while making and tightening up connections Either hold brass body in your hand or attach adjustable spanner across hexagonal or flat faces in valve body at each port s screw thread Make sure that the solenoid
21. ust be installed by a competent person and be installed in compliance with instructions as of subject in this manual all current legislation codes of practice and regulations governing the installation of unvented hot water cylinders in force at the date of installation This installation is subject to building regulation approval notify Local Authority of intention to install The sanitary water tank is to be connected to the altherma y park n EKHBH X indoor unit the indoor part of the reversible air to water Daikin ERYQ heat pumps The EKSWWU sanitary water tank with integrated 3kW electrical booster heater is available in three types 150 200 and 300 All models can be floor mounted while the 150 type model can be wall mounted as well via option kit EKWBSWW150 Scope of this manual This installation manual describes the procedures for installing and connecting the option kit for the EKSWWU sanitary water tanks Please also refer to the indoor unit installation manual supplied with the EKHB X unit for standard installation of the EKSWW sanitary water tank i e in relation to following chapters especially B Typical application examples Overview of the indoor unit Installation of the indoor unit Start up and configuration Test run and final check Maintenance B Troubleshooting NOTE Installation of the ERYQ heat pump outdoor is a described in the outdoor unit installation manual Operation of the indoor un
22. ymptom 2 Water from hot taps is cold CORRECTIVE ACTION Check and reset button s POSSIBLE CAUSES The thermal cut out s has have operated The indoor unit EKHBH X is not Check the indoor unit EKHBH X operating operation Refer to the manual delivered with the indoor unit If any faults are suspected contact your local Daikin dealer Check the wiring F2U and the plumbing connections to the solenoid 2 way valve Check the setting of the thermostat 75 C The solenoid 2 way valve is not operating correctly Symptom 3 Intermittent water discharge POSSIBLE CAUSES CORRECTIVE ACTION Thermal control failure water will be Switch off power to the indoor unit hot When discharge has stopped check the thermal controls and replace if faulty Contact your local Daikin dealer The expansion vessel is broken Replace the expansion vessel Symptom 4 Continuous water discharge CORRECTIVE ACTION Check the pressure reducing valve Replace the pressure reducing valve if the measured pressure is gt 2 1 bar Check and reset button POSSIBLE CAUSES Cold water inlet pressure Temperature and pressure relief valve The expansion relief valve is not functioning properly Check for correct operation of the pressure relief valve by turning the red knob on the valve counter clockwise e If you do not hear a clacking sound contact your local Daikin dealer
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