Mitsubishi Ecodan Hydrobox – Operations Manual
Contents
1. VEL queuing Z E MIE MIE MIE MAE Ayoeded oou ZH 06 ZH 06 ZH 06 u ZH 06 _ Kouenbejj aseyd OEZ NI A OEZ N A OEZ NI A OEZ N jddns x Ver VEL v 9c v6 v6 VEL v 9c v6 veZ veL v 9c v6 _ mice mire wz mise mire 9 9 MIR MAE MIE MAZ Mie MAZ MIE MIZ i 1948009 205 ZHOS ZHOS ZHOS _ _ ZH 0S _ 205 ZHOS 206 ZHOS ZHOS ZHOS 2 09 Aousnbey eseug NOEZ E A 00 E 1062 NI 1062 N A OEZ NI A 00 OEZ NI OEZ N A OEZ A 00 E A OEZ NI A OEZ jddns Aouanbay aseyd ZH 08 A 062 10002 eq 1 edW 20 uedi eq 1 edW Lo eunsseid Duneeu 0 55 uois uedxe 22 99 sulu 2121 0 YUE MHA JO 0 18 6 22 Zx 2 99 eoueuuoned dwa MHA ested ue MHA 2 04 2 042. Bi Main Controller Main controller parts Letter Name Function A Screen Screen in which all information is displayed B Menu Access to system settings for initial set up and modifications Return to previous menu D Confirm Used to select or save Enter key E Power Holiday If system is switched off pressing once will turn system on Pressing again when system is switched on will enable Holiday Mode Holding the button down for 3 secs will turn the system off 1 F1 4 Function keys Used to scroll through menu and adjust settings Function is determined by the menu screen visible on screen A 1 When the system is switched off or the power supply is disconnected the cylinder unit protection functions e g freeze stat function will NOT oper ate Please beware that without these safety functions enabled the indoor unit may potentially become exposed to damage Main screen icons Icon Description 1 Legionella When this icon is displayed Legionella prevention prevention mode is active 2 Heat pump Heat pump is running Defrosting Am Emergency heating 3 Electric heater When this icon is displayed the Electric heaters booster or immersion heater are in use Main screen 4 Target 46 Target flow temperature temperature Target room temperature Compensation curve 5 OPTION Pr
3. 1503 94 VEL V6 v6 VEZ VEL VEL voz v9c v6 V6 v6 MA9 MA9 MA9 MAY MAY _ MAZ MAZ MAZ aere aset MAZ MAZ MAZ yoedeg ZHOS 206 ZHOS _ 2406 ZHOS ZHOS zHOS 2405 ZHOS ZHOS 2 09 _ 208 E ejep jeouper3 NOOP E 7062 21062 N NOEZ N E E 41062 N 4062 NI N NOEZ N Aiddns amod ZH 0S N aseud p1eoq A ddns eq eq _ eq _ _ _ LO LO LO LO LO LO 10 10 10 101 Ze 0 0 dads 552 2eds ees Bunesy psajuesens gt HY 08 5 092 0 Lx jueiquiy 72 ex LON 2 N nyes dw rey 0 08 OL 2 9
4. 2 04 191810 uinuiixey 3 5 oeds yun ees pino peequeuenc m HY 08 5 O S 0 jueiquiy cd 002 7p 0 02 OL Bunee We 1004 eum Buljoo5 ROTER c 5 9 09 SZ Buneag 9 ol3 JeBueuoxe jeeu ld o 9 Syze 64206 602 84606 zoe Bazie 64902 Bazie inj Sort 6786 Boor P100 5x66 Bage Peor 8x96 Peor Peor 6790 Bi Sizer Sizer PILLE Si ovr x UPIM x 1uBrep 089 x 969 x 0091 suoisueuip PUN m pid 1002 jou E gt B MOHW O6WNL 26WX amp 99NW WA odW O36WA O39WA O6NL 26NX 29NW IWA HEURES dk 0015 3 20215 X0ZldH3 XUZldH3 XOZldH3 XOZldH3 0214 3 Q0ZISH3 Q0ZLSH3 00015 4 O0ZISH3 20015 3 20215 3 20215 3 20218 3 20218 3 20018 3 20015 3 1 yun LON S jueiquie 2
5. DHW mode ea 1 Sep 204 12 30 LEGIONELLA SETTINGS gt Hot water temp Frequency Start time Max operation time Duration of max temp normally Menu subtitle Function Range Unit Default value Hot water temp Desired temp of stored hot water 60 70 C 65 Frequency Time between LP mode DHW tank heat ups 1 30 day 15 Start time Time when LP mode will begin 0 00 23 00 03 00 Max operation time Maximum time allowed for LP mode DHW tank heat 1 5 hour 3 Duration of max temp The time period after LP mode max water temp has been reached 1 120 min 30 If you wish to make changes contact installer 10 4 Customising Settings for Your Home Explanation of Legionella Prevention Mode operation At the time entered by the installer Start time flow of useful heat from the sys tem is diverted to heat the water in the DHW tank When the temperature of the stored water exceeds the Hot Water temp set by the installer above 65 primary circuit water is no longer diverted to heat the DHW tank Whilst LP mode is in operation hot water is not directed to the space heating cooling circuit Directly after LP mode operation Duration of max temp will operate The dura tion of this feature is set by the installer and during its operation stored water temperature will be monitored If stored water temperature should drop to LP restart temp LP mode will restart a
6. Heat pumps certification The mark heat pumps is an independent certification program proving that heat pumps performances and production quality of the factory are conformed with the certification reference NF 414 The combinations of indoor units and outdoor units and their applications allowed to use the NF PAC mark can be consulted on the website www marque nf com Abbreviations and glossary No Abbreviations Word Description 1 Compensation curve mode Space heating incorporating outdoor ambient temperature compensation 2 COP Coefficient of Performance the efficiency of the heat pump 3 Cooling mode Space cooling through fan coils or underfloor cooling 4 Cylinder unit Indoor unvented DHW tank and component plumbing parts 5 DHW mode Domestic hot water heating mode for showers sinks etc 6 Flow temperature Temperature at which water is delivered to the primary circuit 7 Freeze stat function Heating control routine to prevent water pipes freezing 8 Flow temperature controller the circuit board in charge of controlling the system 9 Heating mode Space heating through radiators or Underfloor heating 10 Hydrobox Indoor unit housing the component plumbing parts NO DHW tank 11 Legionella Bacteria potentially found in plumbing showers and water tanks that may cause Legionnaires disease 12 LP mode Legionella prevention mode a function on systems wi
7. Do not place a container etc filled with water on the top panel Disposal of the Unit Note This symbol mark is for EU countries only In the European Union there are separate collection systems for used electrical This symbol mark is according to the directive 2012 19 EU and electronic products batteries and accumulators Article 14 Information for users and Annex IX and or to the Please dispose of this equipment batteries and accumulators correctly at your lo directive 2006 66 EC Article 20 Information for end users and cal community waste collection recycling centre Annex Il Your Mitsubishi Electric heating system products have been man Contact your local Mitsubishi Electric dealer for country specific details on with high quality materials and components which disposal Figure 1 1 be recycled and or reused The symbol in Figure 1 1 means that Please help us to conserve the environment we live in electrical and electronic equipment batteries and accumulators at the end of their life should be disposed of separately from your household waste If a chemical symbol is printed beneath the symbol Figure 1 1 this chemical symbol means that the battery or accumulator con tains a heavy metal at a certain concentration This is indicated as follows Hg mercury 0 000596 Cd cadmium 0 00296 Pb lead 0 00496 2 Introduction The purpose of this user manual is to inform users how their a
8. edit screen is displayed 5 Use F2 F3 button to point at a starting month of the Schedule2 then press CONFIRM 6 Use F2 F3 button to point at an ending month of the Schedule2 then press CONFIRM Press F4 to save settings N lt Setting the Schedule timer gt 1 From the main settings menu use F2 and F3 to highlight the schedule icon then press CONFIRM 2 From the schedule 2 period preview screen use F1 and F2 to scroll through the selecting each subtitle in turn by pressing CONFIRM 3 The schedule timer sub menu will be displayed The icons show the following modes Heating Cooling DHW 4 Use F2 and F3 buttons to move between mode icons press CONFIRM to be shown the PREVIEW screen for each mode The preview screen allows you to view the current settings In 2 zone heating operation press F1 to switch between Zone1 and Zone2 Days of the week are displayed across the top of the screen Where day appears underlined the set tings are the same for all those days underlined Hours of the day and night are represented as a bar across the main part of the screen Where the bar is solid black space heating cooling and DHW whichever is selected is allowed 1 2014 30 7 1 204 12 30 gt Schedule timer 1 Oct Schedule timer 2 Nov Mar Jan Dec Schedule2 period preview screen Heating Schedule1 mode sel
9. the weather conditions do not require it Your installer will set the parameters of the graph depending on local conditions and type of space heating used in your home It should not be necessary for you to alter these settings If however you find that over a reasonable operating pe riod the space heating is not heating or is overheating your home please contact your installer so they can check your system for any problems and update these settings if necessary 11 DHW tank temp Stop temp Legionella hot water temp Restart temp Space LP mode heating p mode cooling 1 Time Duration of Max temp LP mode Legionella Prevention mode O 1 Sep 2014 12 30 fem c Heating Heating Compensation TY Zonel 1 2014 12 30 6 60 40 20 30 20 0 8 102030 407 SAW REESE SEN ZR R Flow temp Q Outdoor ambient temp 4 Customising Settings Holiday Mode Holiday mode can be used to keep the system running at lower flow temperatures and thus reduced power usage whilst the property is unoccupied Holiday mode can run either flow temp room temp heating compensation curve heating and DHW all at reduced flow temperatures to save energy if the occupier is absent From the main menu screen press button E should be pressed Be careful not to hold down button E for too long as this will turn off the controller and system Once the holiday mode ac
10. 2 9 Buljoo5 4 T 2 09 SZ BuneeH 9 JeBueuoxo nm 9 98 04 LG 98 6 96 LG 99 06 56 06 vt uie 8 82 By BJ BJ BJ vy vy BJ BJ 83 vy gc ME uideqxuipivxauBred 096 065 008 2 9 AINO BuneeH gt pue B 26NA OZWA OZWA JIN OZWA 26 1 O36WA 26A O39WA 29WA O3cWA OZWA OZWA XdH3 2543 OSH3 SH3 OSHA 0SH3 SH OSHA OSH3 2SH3 2 5 OSHA ASHA ASHA 21 xoqoipAy 4 Customising Settings for Your Home To change the settings of your heating cooling system please use the main con troller located on the front panel of the cylinder unit or hydrobox The following is a guide to viewing the main settings Should you require more information please contact your installer or local Mitsubishi Electric dealer Cooling mode is available for ERS series only However Cooling mode is not avail he indoor unit is connected to PUHZ FRP able when MITSUBISHI ELECTRIC coeno
11. MITSUBISHI CYLINDER UNIT HYDROBOX EHST20 series EHSC series EHSD series EHPT20 series EHPX series ERSC series ERSD series ja hydroboxin k ytt RU OPERATION MANUAL FOR USER For safe and correct use please read this operation manual thoroughly before operating the cylinder unit and English the hydrobox BEDIENUNGSANLEITUNG F RNUTZER Lesen Sie sich zur sicheren und korrekten Verwendung diese Bedienungsanleitung bitte sorgf ltig durch Deutsch DE bevor Sie das Hydraulikmodul inkl Speicher und die Hydrobox verwenden MODE D EM PLOI POUR LES UTILISATEURS Pour garantir une utilisation s re et appropri e lisez attentivement le pr sent mode d emploi avant d utiliser Francais FR l ECODAN hydrobox duo et l ECODAN hydrobox HANDLEIDING VOOR DE GEBRUIKER Voor een veilig juist gebruik moet deze handleiding goed doorlezen alvorens de cilinder en hydrobox in Nederlands NL gebruik te nemen MANUAL DE INSTRUCCIONES _ USUARIO _ Para un uso correcto y seguro del hydrobox duo y del lea est
12. at pump Eco mode takes a little longer to heat the water in the DHW tank but the energy used is reduced This is because heat pump operation is restricted using signals from the FTC based on measured DHW tank temperature Note The actual energy saved in Eco mode will vary according to outdoor ambient temperature Return to the DHW legionella prevention menu Legionella Prevention Mode settings LP mode 1 Use button F3 to choose legionella mode active YES NO 2 To edit the legionella function press down the MENU button for 3 secs and select hot water then press F4 key 3 Use F1 and F2 keys to scroll through the menu selecting each subtitle in turn by pressing CONFIRM See the table below for description of each setting 4 Enter the desired number using the function keys and press CONFIRM During Legionella Prevention Mode the temperature of the stored water is in creased above 60 to inhibit legionella bacterium growth It is strongly recom mended that this is done at regular intervals Please check local regulations for the recommended frequency of heat ups Note When failures occur on the hydrobox the LP mode may not function DHW tank temp DHW max Hmp pe presser MEER DHW max temp drop DHW tank temp DHW max temp DHW max temp drop Time DHW mode Time DHW max operation time restriction gt mode
13. ating 1 Sep 2014 12 30 MON TUE WED THU FRI SAT SUN wp Ug 2 EG BESS Preview screen p Heating 1 Sep 204 12 30 TUE WED THU FRI SAT SUN v v ivJ gt _ Day of week select screen ES 2 TIT Time of period setting screen 1 1Heating 1 Sep 2014 12 30 ZS _____6 80 bes 12 3 477 9 12 4 EA prm Time of period setting screen 2 5 Service and Maintenance E Troubleshooting The following table is to be used as a guide to possible problems It is not exhaustive and all problems should be investigated by the installer or another competent person Users should not attempt to repair the system themselves At no time should the system be operating with the safety devices by passed or plugged Fault symptom Possible cause Solution Cold water at taps Scheduled control off period Check schedule settings and change if necessary systems with DHW tank All hot water from DHW tank used Ensure DHW mode is operating and wait for DHW tank to re heat Heat pump or electric heaters not working Contact installer Heating system does not get up Prohibit schedule or holiday mode selected Check settings and change as appropriate to set temperat
14. ation time has passed If you wish to make changes contact installer Explanation of DHW operation When the DHW tank temperature drops DHW max temp by more than the DHW max temperature drop set by installer DHW mode operates and the flow from the primary heating cooling circuit is diverted to heat the water in the DHW tank When the temperature of the stored water reaches the DHW max temp set by the installer or if the DHW max operation time set by the installer is exceeded DHW mode ceases to operate Whilst DHW mode is in operation primary hot water is not directed to the space heating cooling circuit Directly after DHW max operation time DHW mode restriction will routinely operate The duration of this feature is set by the installer and during its opera tion DHW mode can not normally be reactivated allowing time for the system to deliver primary hot water to the space heating cooling if required However if at this time there is no current demand for space heating cooling the system will automatically resume DHW mode This will continue until it receives a de mand for space heating After the DHW mode restriction operation the DHW mode can operate again and DHW tank heating will continue according to system demand Eco mode DHW mode can run in either Normal or Eco mode Normal mode will heat the water in the DHW tank more quickly using the full power of the he
15. ccurs should be scheduled using the SCHEDULE function see page 12 Ideally this should be during the night time when little space heating is required and economy electricity tariffs can be taken advantage of most situations space heating is best performed using the room tempera ture mode This enables the heat pump to analyse current room temperature and react to changes in a controlled manner utilising the specialised Mitsubi shi Electric controls Using the SCHEDULE and HOLIDAY functions prevent unnecessary Space or DHW heating when the property is known to be unoccupied for instance during the working day Due to lower flow temperatures heat pump heating systems should be used with large surface area radiators or under floor heating This will provide a steady heat to the room whilst improving efficiency and so lowering running costs of the system as the heat pump does not have to produce water at very high flow temperatures Bl Overview of Controls Built into the cylinder unit and hydrobox is the Flow Temperature Controller FTC This device controls the function of both the outdoor heat pump unit and the inder unit or hydrobox The advanced technology means that by using an FTC controlled heat pump you can not only make savings compared to traditional fos sil fuel type heating systems but also compared to many other heat pumps on the market As explained in the earlier section How the Heat Pump Works
16. damaged and fire could occur When installing relocating or servicing the cylinder unit and the hydrobox use only the specified refrigerant R410A to charge the refrigerant lines Do not mix it with any other refrigerant and do not allow air to remain in the lines If air is mixed with the refrigerant then it can be the cause of abnormal high pressure in the refrigerant line and may result in an explosion and other hazards The use of any refrigerant other than that specified for the system will cause mechanical failure or system malfunction or unit breakdown In the worst case this could lead to a serious impediment to securing product safety n heating mode to avoid the heat emitters being damaged by excessively hot water set the target flow temperature to a minimum of 2 C below the maximum allowable temperature of all the heat emitters For Zone2 set the target flow temperature to a minimum of 5 C below the maximum allowable flow temperature of all the heat emitters in Zone2 circuit This appliance is primarily intended for domestic use For commercial applications this appliance is intended to be used by expert or trained users in shops in light industry and on farms or for commercial use by lay persons A CAUTION Do not use sharp objects to press the buttons of the main controller as this will cause damage to the buttons If power to unit is to be turned off for a long time the water should be drained
17. e a note of the error code number and contact installer lt Power failure gt All setting will be saved for 1 week with no power after 1 week Date Time ONLY will be saved Maintenance Maintenance to the cylinder unit and hydrobox should be carried out annually by a competent person only Users should not try to service or replace parts of the cylinder unit or hydrobox themselves Failure to observe this instruction could result in injury to the user damage to the unit and the product warranty becoming invalid In addition to annual servicing it is necessary to replace or inspect some parts after a certain period of system operation Please see tables below for detailed instructions Replacement and inspection of parts should always be done by a competent person with relevant training and qualifications Parts which require regular replacement Parts which require regular inspection Parts Replace every Possible failures Pressure relief valve PRV Air vent Auto Manual Drain cock Primary Sanitary circuit Manometer Inlet control group ICG 6 years Water leakage Parts Check every Possible failures Earth leakage causing Immersion heater 2 years circuit breaker to activate Heater is always OFF Water circulation pump Water circulation pump 20 000 hrs 3 years failure OPTIONAL PARTS for UK Parts which must NOT be reused when servicing O ring Gaske
18. e manual de instrucciones antes su Espafiol ES utilizaci n MANUALE DI FUNZIONAMENTO PER L UTENTE Per un uso corretto e sicuro del dispositivo leggere attentamente il presente manuale di funzionamento prima Italiano IT di utilizzare l hydrotank e l hydrobox MANUAL DE FUNCIONAMENTO PARA UTILIZADOR Para uma utiliza o segura correcta favor ler cuidadosamente este manual de funcionamento antes de Portugu s PT trabalhar com o cilindro e permutador de calor BRUGSVEJLEDNING TILBRUGER L s venligst denne brugsvejledning grundigt inden betjening af i tank modulet unit og hydroboksen Dansk DA ANVANDARMANUAL For s ker och korrekt anv ndning var god l s denna anv ndarmanual noggrant innan du anv nder i cylindertanken Svenska SV och hydroboxen BRUKSANVISNING FORBRUKEREN Les denne bruksanvisningen ngye for du bruker sylinderenheten og hydroboksen for sikre trygg og riktig Norsk bruk KAYTT OPAS ___ Turvallisen asianmukaisen k yt n varmistamiseksi lue tama k ytt opas huolellisesti ennen varaajayksik n Suomi FI Contents 1 Safety 2 2 Introduction ecce 3 3 Your Heating 5 4 Customising Settings for Your Home 7 5 Service and Maintenance 14
19. ect screen 12 4 Customising Settings for Your 5 In the preview menu screen press F4 button 6 First select the days of the week you wish to schedule 7 Press F2 F3 buttons to move between days and 1 to check or uncheck the box 8 When you have selected the days press CONFIRM 9 The time bar edit screen will be displayed 10 Use buttons F2 F3 to move to the point at which you do not want the selected mode to be active press CONFIRM to start 11 Use F3 button to set the required time of inactivity then press CONFIRM 12 You can add up to 4 periods of inactivity within a 24 hour interval 13 Press F4 to save settings When scheduling heating button F1 changes the scheduled variable between time and temperature This enables a lower temperature to be set for a number of hours e g a lower temperature may be required at night when the occupants are sleeping Note The schedule timer for space heating cooling and DHW are set in the same way However for DHW only time can be used as scheduling vari able Asmall rubbish bin character is also displayed choosing this icon will delete the last unsaved action It is necessary to use the SAVE function F4 button to save settings CON FIRM does NOT act as SAVE for this menu Service Menu The service menu is password protected to prevent accidental changes being made to the operation settings by unauthorised unqualified persons 13 p He
20. ervice space requirements when placing objects next to the unit Do not touch the unit or controller with wet hands as electric shock may result Do not remove the panels of the unit or try to force objects inside the unit s casing Do not touch protruding pipework as it may be very hot and cause burns to the body Should the unit start vibrating or making abnormal noises stop operation isolate from the power supply and contact the installer Should the unit start to produce any burning smells stop operation isolate from the power supply and contact the installer Should water be visibly being discharged through the tundish stop operation isolate from the power supply and contact the installer This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure that they do not play with the appliance Inthe case of a refrigeration leak stop the operation of the unit thoroughly ventilate the room and contact the installer If power supply cable is damaged it must be replaced by the manufacturer its service agent or similarly qualified persons in order to avoid a hazard Do not place containers with liquids on top of the unit If they leak or spill the unit may be
21. essing the function button below this icon will dis play the option screen 13 6 Increase desired temperature 7 Decrease desired temperature 8 Zi 2 72 Pressing the function button below this icon switch es between Zone1 and Zone2 Information Pressing the function button below this icon displays the information screen 9 Space heating Heating mode cooling mode Zone1 or Zone2 TI Cooling mode 10 DHW mode Normal or ECO mode 11 Holiday mode When this icon is displayed Holiday mode activated 12 Timer Prohibited Server control Stand by Stand by 2 Stop Operating aocsgeooc 13 Current Current room temperature temperature 8 Current water temperature of DHW tank 14 The Menu button is locked or the switching of the operation modes between and Heating opera tions are disabled in the Option screen 3 15 5 SD memory card NOT for the user is inserted 2 This unit is in Stand by whilst other indoor unit s is in operation by priority 3 To lock or unlock the Menu press the BACK and CONFIRM keys simultaneously for 3 seconds 4 Customising Settings General Operation In general operation the screen displayed on the main controller will be shown as in the figure on the right This screen shows the target temperature space heating mode DHW mode if DHW tank is present in system any additional heat sources be
22. etailed explanation Low temperature renewable heat energy taken from the environment Heat energy output Electrical energy input di A 2 Condenser Plate heat exchanger 3 Expansion valve 1 Compressor Lan 4 Evaporator Outdoor unit air heat exchanger The first phase begins with the refrigerant being cold and low pressure 1 The refrigerant within the circuit is compressed as it passes through the com pressor It becomes a hot highly pressurised gas The temperature also rises typically to 60 C 2 The hot refrigerant gas is then condensed as it passes across one side of a plate heat exchanger Heat from the refrigerant gas is transferred to the cooler side water side of the heat exchanger As the temperature of the refrigerant decreases its state changes from a gas to a liquid 3 Now as a cold liquid it still has a high pressure To reduce the pressure the liq uid passes through an expansion valve The pressure drops but the refrigerant remains a cold liquid 4 The final stage of the cycle is when the refrigerant passes into the evaporator and evaporates It is at this point when some of the free heat energy in the out side air is absorbed by the refrigerant It is only the refrigerant that passes through this cycle the water is heated as it travels through the plate heat exchanger The heat energy from the refrigerant passes through the plate heat exchanger to the cooler water which increases in tempe
23. fter DHW operation finishes the system will automatically re turn to normal operation To cancel forced DHW operation hold down button F1 in the Option Screen E Heating Cooling The heating cooling menus deal with space heating cooling using normally either a radiator fan coil or underfloor heating cooling system depending on the instal lation There are 3 heating modes Heating room temp Auto adaptation a Heating flow temp 8 Heating compensation curve Cooling flow temp amp 6 Room temp Auto adaptation mode This mode is explained in detail in Overview of Controls Section page 4 Flow temp mode The temperature of the water flowing to the heating circuit is set by the installer to best suit the space heating cooling system design and user s desired require ments Explanation of compensation curve During late spring and summer usually the demand for space heating is reduced To prevent the heat pump from producing excessive flow temperatures for the primary circuit the compensation curve mode can be used to maximise efficiency and reduce running costs The compensation curve is used to restrict the flow temperature of the primary space heating circuit dependent on the outdoor temperature The FTC uses in formation from both an outdoor temperature sensor and a temperature sensor on the primary circuit supply to ensure the heat pump is not producing excessive flow temperatures if
24. g Time Zone _2 1 ___1 204 12 30 _____12 88 gt Time Zone schedule setting screen 4 Customising Settings E Domestic Hot Water DHW Legionella Prevention The domestic hot water and legionella prevention menus control the operation of DHW tank heat ups lt DHW mode settings 1 Highlight the hot water icon and press CONFIRM 2 Use button F1 to switch between Normal and ECO heating modes 3 To edit the mode press down the MENU button for 3 secs then select hot wa ter 4 Press F2 key to display the HOTWATER DHW SETTING menu 5 Use F2 and F3 keys to scroll through the menu selecting each component in turn by pressing CONFIRM See the table below for description of each setting 6 Enter the desired number using the function keys and press CONFIRM 1 Sep 2014 Legionella 12 30 Menu subtitle Function Range Unit Default value DHW max temp Desired temperature of stored hot water 40 60 C 50 DHW max temperature Difference in temperature between max temp and the temperature at which DHW mode restarts 5 30 C 10 drop DHW max operation time Max time allowed for stored water heating DHW mode 30 120 min 60 DHW mode restriction The time period after DHW mode when space heating has priority over mode temporarily pre 30 120 min 30 venting further stored water heating Only when DHW max oper
25. he system will operate in 1 From the Initial settings menu select Room sensor settings 2 When 2 zone temperature control is active and wireless remote controllers are available from Room RC zone select screen select zone No to assign to each remote controller 3 From Sensor setting screen select a room sensor to be used for monitoring the room temperature from Zone1 and Zone2 separately Control option Corresponding initial settings room sensor Remote Controller Options Zone1 Zone2 Installation manual A Room RC1 8 one each i for Zone1 and Zone2 B TH1 i Main controller Not specified if a field supplied room thermostat is used Room 1 8 one each for Zone1 and Zone2 if a wireless remote controller is used as a room thermostat 4 From Sensor setting screen select Time Zone to make it possible to use differ ent room sensors according to the time schedule set in the Select Time Zone menu The room sensors can be switched up to 4 times within 24 hours x 1 2014 12 30 ROOM SENSOR SETTINGS RC zone select Sensor setting x 1 2014 12 30 ROOM RC ZONE SELECT 1 2 Room RC1 Zone2 Room RC2 Zone2 Room RC3 Zonel May Room 4 2 1 E WB lt x Zone 1 2014 12 30 SENSOR SETTING pSensor setting Select Time Zone x Zone 1 Sep 2014 12 30 SENSOR SETTING Sensor settin
26. heat pumps are most efficient when providing low flow temperature water The FTC advanced technology enables the room temperature to be kept at the desired level whilst utilising the lowest possible flow temperature from the heat pump In room temp Auto adaptation mode the controller uses temperature sensors around the heating system to monitor space and flow temperatures This data is regularly updated and compared to previous data by the controller to predict changes in room temperature and adjust the temperature of water flowing to the space heating circuit accordingly By monitoring not only the outdoor ambient but the room and heating circuit water temperatures the heating is more consistent and sudden spikes in required heat output are reduced This results in a lower overall flow temperature being required Ambient temp sensor ON eturn temp sensor 400q Joopjno 1 Joopjno 3y 104 yun s uoisJeulull pue Jejeeu 1 5004 ujoq 9U 104 p jno jno 51 3j jou Ex suonipuoo 902 58 Jepun peise c 291 150 eq JSNW JUSWUOIIAUD 991
27. ing used holiday mode and the date and time You should use the function buttons to access more information When this screen is displayed pressing F1 will display the current status and pressing F4 will take the user to the option menu screen lt Option screen gt This screen shows the main operating modes of the system Use function buttons to switch between Operating gt Prohibited O and Timer O for DHW and space heating cooling or detailed information on energy or capacity The option screen allows quick setting of the following Forced DHW if DHW tank present to turn ON OFF press F1 DHW operating mode if DHW tank present to change mode press F2 Space heating cooling operating mode to change mode press Energy monitor Following accumulated energy values are displayed 42 Consumed electrical energy in total month to date Delivered heat energy in total month to date To monitor the energy values in each operation mode for month to date last month the month before last year to date last year press F4 to access to the Energy monitor menu Note If a certain accuracy is required for the monitoring the method to display captured data from external energy meter s should be set up Contact your installer for further details Main Settings Menu To access the main settings menu press button B MENU The following menus will be displayed DHW Cylinder unit or hydrobox plu
28. ir source heat pump heating system works how to run the system at its most efficient and how to change settings on the main controller This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction con cerning the use of the appliance by a person responsible for their safety Children should be supervised to ensure they do not play with the appli ance This user manual should be kept with the unit or in an accessible place for future reference Bl Overview of the System The Mitsubishi Electric Air to Water ATW heat pump system consists of the fol lowing components outdoor heat pump unit and indoor cylinder unit or hydrobox incorporating main controller Schematic of package cylinder system How the Heat Pump Works Space heating and DHW Heat pumps take electric energy and low grade heat energy from the outdoor air to heat refrigerant which in turn heats water for domestic use and space heating The efficiency of a heat pump is known as the Coefficient of Performance or COP this is the ratio of heat delivered to power consumed The operation of a heat pump is similar to a refrigerator in reverse This process is known as the vapour compression cycle and the following is a more d
29. nd primary water flow from the heat source s will be directed to the DHW tank to boost the temperature Once the set time for Duration of Max temp has passed LP mode will not recur for the set interval set by installer It is the responsibility of the installer to ensure the settings for legionella preven tion are compliant with local and national guidelines Please note that LP mode uses the assistance of electric heaters if present to supplement the energy input of the heat pump Heating water for long periods of time is not efficient and will increase running costs The installer should give careful consideration to the necessity of legionella prevention treatment whilst not wasting energy by heating the stored water for excessive time periods The end user should understand the importance of this feature ALWAYS COMPLY WITH LOCAL AND NATIONAL GUIDANCE FOR YOUR COUNTRY REGARDING LEGIONELLA PREVENTION Forced DHW The forced DHW function is used to force the system to operate in DHW mode In normal operation the water in the DHW tank will be heated either to the set tem perature or for the maximum DHW time whichever occurs first However should there be a high demand for hot water Forced DHW function can be used to pre vent the system from routinely switching to space heating cooling and continue to provide DHW tank heating Forced DHW operation is activated by pressing button F1 and Back button in the Option Screen A
30. nstaller Schedule function inhibits the system from operating but the outdoor unit operates Freeze stat function is active Normal operation no action necessary Pump runs without reason for short time Pump jam prevention mechanism to inhibit the build up of scale Normal operation no action necessary Mechanical noise heard coming Heaters switching on off Normal operation no action required from cylinder unit 3 way valve changing position between DHW and heating mode Normal operation no action necessary Noisy pipework Air trapped in the system Try bleeding radiators if present If the symptoms persist contact installer Loose pipework Contact installer Water discharges from one of the relief valves The system has overheated or overpressurised Switch off power to the heat pump and any immersion heaters then con tact installer Small amounts of water drip from one of the relief valves Dirt may be preventing a tight seal in the valve Twist the valve cap in the direction indicted until a click is heard This will release a small amount of water flushing dirt from the valve Be very care ful the water released will be hot Should the valve continue to drip contact installer as the rubber seal may be damaged and need replacing An error code appears in the main controller display The indoor or outdoor unit is reporting an abnormal condi tion Mak
31. rature This heated water enters the primary circuit and is circulated and used to serve the space heating system and indirectly heat the contents of the DHW tank if present A Introduction E Economical Best Practice Air source heat pumps can provide both hot water providing a suitable DHW tank is used and space heating all year The system is different to a conventional fossil fuel heating and hot water system The efficiency of a heat pump is shown by its coefficient of performance as explained in the introduction The following points should be noted to achieve the most efficient and economical operation of your heating system Important points about heat pump systems Domestic hot water and legionella functions are only available on cylinder units or hydroboxes plumbed to an appropriate storage DHW tank normal operation simultaneous DHW and space heating unadvisable However during periods of extremely low outdoor ambient temperature the im mersion heater if present can be used for DHW whilst the heat pump contin ues to provide space heating Please be aware that the immersion heater used alone is not an efficient method to heat the whole DHW tank Therefore it should only be used as a back up in normal operation The hot water produced by the heat pump is typically at a lower temperature than a fossil fuel boiler Implications Ifthe heat pump is being used for DHW the time at which tank heat up o
32. s locally supplied DHW tank Heating Cooling Schedule timer Holiday mode Initial settings Service Password protected Bi Initial Settings 1 From the main settings menu use F2 and F3 buttons to highlight Initial set tings icon and select by pressing CONFIRM 2 Use F1 and F2 buttons to scroll through the menu list When the required title is highlighted then press CONFIRM to edit 3 Use the relevant function buttons to edit each initial setting then press CON FIRM to save the setting Initial settings that can be edited are Date Time sure to set it to the local standard time Language Summer time Temp display Contact number e Time display Room sensor settings To return to the main settings menu press the BACK button 8 1 Sep 2014 12 30 o 6 e mE S 20 Home screen 21 2014 12 30 A gt ai CSS illc Option screen 1Sep 2014 12 30 Hot water DHW Boa amp Main settings menu screen Icon Description Hot water DHW Heating Cooling Schedule timer Holiday mode Initial settings Service Ex e D LH 4 Customising Settings for Your Home lt Room sensor settings gt For room sensor settings it is important to choose the correct room sensor de pending on the heating mode t
33. t Note Always replace the gasket for pump with a new one at each regular maintenance every 20 000 hours of use or every 3 years 14 Installers Please be sure to put your contact address telephone number this manual before handing it to the customer MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Authorized representative in EU MITSUBISHI ELECTRIC EUROPE B V HARMAN HOUSE 1 GEORGE STREET UXBRIDGE MIDDLESEX 8 1QQ U K This product is made by Mitsubishi Electric Air Conditioning Systems Europe Ltd NETTLEHILL Rd HOUSTOUN IND ESTATE LIVINGSTON EH54 5EQ UK RG79D942H01 Printed in the UNITED KINGDOM
34. th water tanks to prevent the growth of legionella bacterium 13 Packaged model Plate heat exchanger Refrigerant Water in the outdoor heat pump unit 14 PRV Pressure relief valve 15 Return temperature Temperature at which water is delivered from the primary circuit 16 Split model Plate heat exchanger Refrigerant Water in the indoor unit 17 TRV Thermostatic radiator valve a valve on the entrance or exit of the radiator panel to control the heat output l Safety Precautions gt Before operating this unit it is important to read the safety precautions gt The following safety points are provided to prevent injury to yourself and damage to the unit please adhere to them Used in this manual N WARNING CAUTION Precautions listed under this title should be observed to prevent Precautions listed under this title Should be observed to prevent injury or death to the user damage to the unit Follow the instructions provided in this manual and local regulations when using this unit A WARNING Theunit should NOT be installed or serviced by the user If installed incorrectly water leakage electric shock and fire may result NEVER block discharges from emergency valves Do not operate the unit without emergency valves and thermostatic cut outs being operational If in doubt contact your installer Do not stand or lean on unit Do not place objects on top or below the unit and observe s
35. tivation screen is displayed you can activate deactivate and select the duration that you would like holiday mode to run for Press button F1 to activate or deactivate holiday mode Use buttons F2 F3 and F4 to input the date which you would like holiday mode to activate or deactivate holiday mode for space heating Editing holiday mode Refer to the menu tree in 5 8 Main controller of Installation Manual Should you require the Holiday mode settings e g the flow temp room temp to be altered you should contact your installer E Schedule timer Scheduled timer can be set in two ways for example one for summer and the other for winter Refer to as Schedule 1 and Schedule 2 respectively Once the term months for the Schedule 2 is specified rest of the term will be speci fied as Schedule 1 In each Schedule an operational pattern of modes Heating DHW can be set If no operational pattern is set for Schedule2 only the pattern for Schedule 1 will be valid If Schedule 2 is set to full year i e March to Feb only the operational pattern for Schedule 2 will be valid The schedule timer is activated or deactivated in the option screen See General Operation section Setting the Schedule period From the main settings menu use F2 and F3 to highlight the schedule icon then press CONFIRM 2 The Schedule period preview screen is displayed 3 To change the Schedule period press F4 button 4 The time bar
36. ure Incorrectly sized radiators Contact installer The room in which the temperature sensor is located is at a different temperature to the rest of the house Reposition the temperature sensor to a more suitable room Battery problem wireless control only Check the battery power and replace if flat The cooling system does not cool down to the set temperature ONLY for ERSC D models When the water in the circulation circuit is unduly hot Cooling mode starts with a delay for the protection of the outdoor unit Normal operation When the outdoor ambient temperature is significantly low Cooling mode does not start running to avoid freezing of the water pipes If the freeze stat function is not necessary contact installer to change the settings After DHW operation room tem perature rises a little At the end of the DHW mode operation the 3 way valve diverts hot water away from the DHW tank into space heating circuit This is done to prevent the cylinder unit components from overheating The amount of hot water directed into the space heating circuit is dependent on the type of system and the pipe run between the plate heat exchanger and the cylinder unit Normal operation no action necessary Heating emitter is hot in the DHW mode The room temperature rises The 3 way valve may have foreign objects in it or hot wa ter may flow to the heating side due to malfunctions Contact i
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