User Guide - Mitsubishi Electric
Contents
1. 14 Display 15 Tank 16 Sensor Well 17 Immersion Heater 18 Manometer 19 Pressure Vessel 20 Plate Heat Exchanger 21 Safety Valve Dimensions Cabinet Height 1800 mm Width 600 x 650 mm Max Operating Pressure 2 5 bar Max Operating Temperature 100 C 17 Version 1 4 EcoDan Maintenance Important The first thing to do is to shut off the unit and switch off the electrical main supply If the unit is installed with out a main switch be sure that the fuses for the main supply is taken out Remove the front panel To accomplish the maintenance it is necessary to remove the front panel on the unit Unscrew the two screws that is placed on the foot of the front panel Draw out the lower end of the front panel and then lift it up a bit Check the pressure gauge Twice a year The pressure gauge in the lower section of the EcoDan must be checked twice a year This is particularly important during autumn when the heating season starts Then pressure gauge should be at 0 5 1 5 bar If the pressure is lower that 0 5 bar fill with water up to around 1 0 bar The knob for tapping up the heating water is located in the connection area Check the safety valves Twice a year Check the safety valves for tap water and heating water by opening and closing them using the valve knobs Water may drip from the escape pipe this is normal The pipe opening must never be sealed If the water heater mus2. 30 40 A an 20 0 ee Step by step 5 C Important you should wait at least twenty four hours when increasing or decreasing the heating before making a new adjustment Only change one value at a time until you are happy with your temperature settings 12 Version 1 4 EcoDan Set the desired room temperature If you have a room sensor connected to the EcoDan you can set the required temperature in the room from the Room temperature menu From the menu Room Temperature Influence set how much you want the sensor to influence the heating system If you don t have a Room sensor connected to the system the Room Temperature Influence settings is 0 who is the delivery settings Roomtemperature This is what to do 1 Press the Radiator heat button in the initial menu Main menu 2 Select Room sensor to adjust the room s temperature The range is 10 C to 30 C To make the room sensor active set a value between 1 0 10 0 Room sensor influence temperature This is what to do 1 Press the Arrow down in Room sensor menu to go to Room Sensor Influence menu 2 Select Room sensor influence temp to adjust the influence The range is between 0 0 10 0 3 Pres the bottom to increase the room temperature press bottom to lower the room temperature 4 Save the new value by pressing the Save button Enter nfluence room sensor Adjust room sensor influence temperature Set the heat pump for extra water hea
3. All settings are made from the control panel It also displays heat production statistic and information about alarms When you have made your settings the control panel makes sure they are saved in the control unit ME 900 to carry out your wishes Controls and status lamps Power switch ON OFF You start and stop the heat pump using the power switch button Lamp on The heat pump is on Lamp flashes The heat pump is off Important scroll list shows ou have under menus Main menu Display information Menu button Go back Power switch ON OFF Menu buttons Enter Menu buttons Menu buttons adjust settings How to use the Control panel The principal of the control panel is based on the user using the buttons and the menu dial to move between the different menus and settings Set the heating It is easy to set the heating level on the heat pump However before we explain to do this is important to understand the relation between the outdoor temperatures return temperature and heat curve slope The easiest way to explain the relation is with a heat curve Version 1 4 EcoDan Heat curve You use the heat curve to help set the indoor temperature you would like The heat pump is controlled by the outdoor temperature When the weather becomes colder the heat pump ensures more heating is produced automatically Example below present when the outdoor temperature is 2 5 C give an return temperature on 36
4. C in outdoor temperature When you step by step in 5 C intervals of outdoor temperature is the return temperature calculated from the curve slope showed Start by finding the value you wish to change It can be V H or some other value To find the current value press the menu bottom right gt left lt At the top of the display various outdoor temperatures with corresponding flow values on the curve are shown at the bottom a dash can be shown that shows the position on the outdoor temperature axis Continue turning the dial and you will eventually find the H value The most common adjustment is to increase the H value slightly to obtain more heating in cold weather In the display you will see that the H value has been located and then marked by pressing enter When you press the menu bottom or adjusts the H value When you are satisfied with the H value press bottom enter to save the adjustment It may also be necessary to change a specific value on the curve e g to increase the heating at temperature around 5 C Press the menu bottom left or right to mark 5 C and press enter to mark the value Press menu bottom or to adjust the value When you are satisfied with the new value press bottom enter to save the adjustment In the example to the right the value at 5 C outdoor temperature has been changed to 40 C the flow temperature has been increased from 33 1 C by 6 9 C Main menu Select Heat Heat curve
5. C with actual curve slope Return temperature C Outdoor temperature C Return temperature The return temperature is the temperature of the water returns to the heat pump from the radiators The water led out from the heat pump to the heat pump to the heating system is normally 7 10 C higher than the return temperature When the outdoor temperature is 10 C and curve 4 is set the pump attempts to keep the return water at approximately 40 C Note On delivery the heat pump curve slope is set to position 4 This means that the return temperature is 35 C when is 0 C outdoors Outdoor temperature The outdoor temperature determines how much heating the heat pump should produce A sensor placed outdoors sends signals to the control unit which then adjusts the heat pump Curve slope You can change the curve slope to increase or decrease the heating in the house By offsetting the left V and right H end points the slope of the heat curve can be altered Use the left end point to adjust the flow temperature at high outdoor temperatures and the right en point to adjust the flow temperature at low temperatures Adjust a single value You can also adjust a signle value on the curve up or down every fifth outdoor degree You can for example create an increase in the heat curve at 0 C Version 1 4 EcoDan Change the curve slope The heat pump s production of heating is adjusted by increasing or decreasing th
6. d that it runs for many years The control unit controls and monitors the heating and hot water supply in your house The monitoring function is especially important It shuts down the heat pump in the event of operational disturbances so no critical parts are damage Water heating is given priority over space heating In a house with water based heating a difference is made between space heating and water heating The space heating is for radiators floor heating and water heating is for showers and taps The water heating is fitted with a sensor that senses the temperature of the water heating The space heating passes through the water heater cylinder s outer shell and heats up the inner tank The control unit makes sure the heating of water heating is always given priority over the space heating This means you never need to be without water heating The control unit controls a tree way valve that switches between space heating the water heating Once the water heating have been heated the three way switches so that the space heating water is heated The Control unit s two methods to control the heat pump The control unit uses two different methods to control the heat pump These two methods are Control with an outdoor sensor and Control with an outdoor sensor supplemented with a room sensor Control with outdoor sensor Control with an outdoor sensor is the most common method used by the control unit to control the heat pump When the heat p
7. decreasing the heating obtaining extra hot water etc using the control panel There are a number of sensors in the system to assist adjusting heating and hot water production for different demands These give the control unit information about for instance the current outdoor temperature and hot water temperature Version 1 4 EcoDan This is how the EcoDan works The EcoDan together with an Mitsubishi Electric air water heat pump produce hot water and heating additional heat together with an immersion heater built into the EcoDan The EcoDan hot water tank contains a tank in tank solution to produce hot water heat There is an additional immersion heater which heats the water when the heat pump don t carry the demand or when the heat pump stop after outdoor limited temperature The system heats the hot water based on information from a sensor in the hot water heater and the settings in the control unit The electrical patron is also used to produce extra high hot water temperature which is reached via a hot water peak Principles in different demand situations Heat pumps produce space heating and there is no hot water heating requirement The heat pump heats the space heating water according to the sensor Tl and temperature settings in the control unit The control unit ME 900 controls the capacity from the heat pump Heat pump produce space heating and there is a water heating requirement In this case the water heating s
8. e curve slope By setting the curve slope with menu bottom and can you adjust the production of heat from the heat pump Return temperature C Curve slope V 20 H 24 V 20 H 29 V 20 H 48 V 20 H 58 Outdoor temperature C Normal basic setting for under floor heating in concrete Normal basic setting for under floor heating in wooden joists Normal basic setting for radiators Abnormal high setting From the heat curve we see that curve slope V 20 and H 55 gives a return temperature of 35 C when it is 0 C outdoors If the outdoor temperature drops we can se that the return temperature increases Colder outdoor temperature gives a higher return temperature At an outdoor temperature of approximately 30 C we see the curve slope has neatly reached the limit value 57 C for the return temperature If the return temperature exceeds 57 C and the outdoor temperature is 10 C you need a higher curve slope 10 Version 1 4 EcoDan Set extra heat curve with mixing valve If you have floor heating combined with radiators you should set an extra heat curve with mixing valve The mixing valve is a valve that lets water through in different amounts It prevents the floor from becoming too hot and destroying the flooring You activate the extra heat curve to select Floor heat Enable in the main menu for heat You can adjust the PID regulation through settings in the menu for heat Extra Heat curve E
9. ecodan User Guide EcoDan Contents For the US naan ani aa A nl nie ak ed ed ieee ee 3 Important information 212 20 iio end td ede ned nena ieee 3 Generali O ee heel it eed 4 This is how the EcoDan WOKFKG ccceceeeeeeeeceeceeeeeeececeaeaeceeeeececcaaeaeeeeeeesecaaeaeeeeeeesecseceeeeeeeeeteesnaeees 5 Principles in different demand Situations cccccccececeeeeeeeeeeeceeeeeeececeacaeceeeeeeesecacaeeeeeeeseteenieeeeeeeess 5 Control nit ME 900 ccoo cocoa A los Mend aided Dl eiaa aae 6 Water heating is given priority over Space NeatidQ ooococnnnnccnnnnnccccnnnocccnnnnorcccnnnarnca nn ronca rra 6 The Control units two methods to control the heat puMp oooocccccnconococccoccnonononononnnnnnnnannnnoncnnnnnnnnnnnnns 6 Control with Outdoor SENSO ista tii da Adital 6 Control with an outdoor sensor supplemented with rooM SENSO oooooccccccocococococcnccnnnnononncnnnnnnnnnnnncnnno 7 ControlP el ta a A a 8 Gontrols and Status AMS asada 8 How to use the Control panel stc r a ea e r a S Aaa a rd 8 Sethe head ias 8 Heat CUINA a A da Ra 9 Changethe Curve slOpe cio ad 10 Set extra heat curve with MIXING valve oooooccccnnncccnnnococcnnnoncccnnnorc cinco arc cnn rca rr 11 Extra Heat Curves sacro nd dd 11 Set the heat curve slope or adjust the heat curve oocccccinncccccnnoncccnononcccnnnonc canon nc cnn rr cnn nrrrcnannnn 12 Set the desired room temperature ccccccccceceeeeeeeeceeceeeeeeeeeeaeaeee
10. eeeesesecaeaeeeeeeeseesccaeaeeeeeeetenseaeees 13 Set the heat pump for extra water heating 2 0 0 2 ececeeeecceceeeeeeeeeeeae cece eeeeeecacaeeeeeeeseeeeceeeeeeeeeeeeennaeees 13 Water heating Peak A AA ie 14 UTES COG US sere cesses sate a A A AA 14 Femperat rS ase he relia sate A A ate 15 Electrical Gat esc tati id ase 15 DOMVICE triana ciar ile areata di relat sak Dect a clans i Ue tere ata tart teenth a rides 15 Date clOck visas nat ii 15 S lat Pora rnane a escheat r a a a ttawale sth e a ESER 15 Pool a dd r a a dsi 15 COMPONENE DS ciar EEE EE EA EA A E EA 16 EcoDan without plate heat exChanglT oocccccinoccccconocccccononcncnononcncnanoncncnann cnc cnn nn nn nc nano nn cn naar nn cn naar ancnnnnns 16 EcoDan with plate heat exChangeT ococococcccnnoccccnononcccnononcncnnnoncncnnnn nn nn naar cnn cnn nn nn nn naar nn nn naar acc r naar nnccnnnns 17 Maintenance ic 18 What to do ifa fault OGCUIS sia li ante el A es 19 Overheat protection immersion heater ccccceceeeeceececeeeeeeeceneaeeeeeeesesenaeaeeeeeeeseseeneeeeeeeeeseeseaeess 19 Emergency operation 19 Technical data 19 Version 1 4 EcoDan For the user Important information EcoDan is used together with a Mitsubishi Electric air water heat pump for production of tap water and heating of a radiator or floor heating system The system is controlled by ME 900 control unit which is built in the unit controls and monitors the total system using different setting
11. ensor T3 indicates that the water heating needs be heated The warm water from the heat pump passes through the water heater cylinder s outer shell Toits and heats up the water heater until the requirement is met sensor While it is doing so no space heat is produced The switch between space heating and water heating production occurs automatically at a certain time interval T4 Indoor sensor option Hot water A 2 a 2 o EJ D Extra hot water and hot water peaks When these requirements must be met the control unit ensures that hot water is first heated by the heat pump then only by the immersion heater until demand is met Heat pump 3 way valve Return temp Heating water Radiator floor heating At outdoor temperatures lower than 20 degrease C In the event of too low an outdoor temperature the heat pump stops and all heating of heating water and water heating occurs via an immersion heater in EcoDan The outdoor temperature is displayed via the outdoor sensor T2 Summer season In this case there is no heat production and the heat pump is idle When a water heating requirement occurs the heat pump starts and meets the demand Extra water heating and hot water peaks function as described previously Version 1 4 EcoDan Control unit ME 900 The control unit is the brains of the system It makes sure the het pump and EcoDan gives the best energy savings an
12. s for heating hot water other operations and maintenance The settings are made by the installer and the user via a control panel Note Only a trained and qualified technician may carry out repairs to this product Incorrect repairs can lead to serious risk to the user Visits from an authorised service representative to make corrections or adjustments after such a repair cannot in such case be carried out free of charge not even during the warranty period Version 1 4 EcoDan General EcoDan can not be used without a connection to a Mitsubishi Electric heat pump which forms a complete solution for both heating and hot water The EcoDan hot water cylinder is in stainless steel and has a protector anode that maintenance free and is suitable for all types of water The EcoDan is installed indoors and the heat pump is installed outdoors The heat pump collects energy from outside air and the energy is transferred via heated water to EcoDan for further transfer out into the house s heating system radiators and or floor heating and for heating the tap water The control unit ME 900 controls and monitors the whole installation It contains a control panel with graphic presentation Most settings needed to give the installation the best possible function in your house are made via the control panel by the installer or are preset in the factory In addition you can affect operation in different ways for example by increasing or
13. t be drained call a service engineer Check the anode once a year Turn off the incoming fresh water Then open a hot water tap to release the pressure in the hot water tank Unscrew the anode fitting on top of the unit Pull up and check the condition of the anode If the anode is very much affected it has to to be changed Check the expansion vessel Twice a year Check the pre pressure of the expansion vessel by connecting a manometer on the airvent located on the bottom of the vessel The pre pressure should be 0 3bar 0 1 bar m from the highest point of the system Check the filter ball Twice a year Turn the lever on the filter ball and unscrew the cap Take out the filter and clean it if necessary 18 Version 1 4 EcoDan What to do if a fault occurs The control unit has an advanced monitoring system that gives alarms if anything unforeseen happen in the system Most alarms correct themselves There is never a risk of affecting something when you reset an alarm once or twice In the event of recurring alarms contact your dealership service technician This is described further in the Mitsubishi Electrical guide and also describes what actions you can take Overheat protection immersion heater The button for resetting the immersion heater overheats protection is on the front of the electrical box This is a protection device that should normally not trip If however it dose trip reset it by pressing in the bu
14. ting You can obtain extra water heating by temporarily increasing the temperature of the water in the water heating cylinder A higher water temperature gives more water heating when for example a large number of people need to shower You choose how long the function should run using in the menu extra Water heating 13 Version 1 4 EcoDan This is what to do 1 2 Main menu Press the Water heating button in the initial menu Turn the menu dial with the buttons to reach the menu Extra Water heating Turn the bottom to choose the number of hours that the immersion heater should be on e g 24 hours Save the value by pressing the Save button Enter Turn the menu down to set stop temp extra hot water standard setting 65 C When the set time has elapsed you must repeat the settings to Number of hours Select hours Water heating peak Recurring increase in the water heating temperature The water heating menu is used to set the interval for a recurring increase in the water heating temperature If for example you set the value seven days the temperature is increased once a week to approximately 65 C You can also specify Start time for when the temperature increase is to start factory setting is 03 00 First menu set stop temperature standard 65 C Second menu value for days of hot water peak Third menu start time to produce hot water peak factory setting 03 00 Fourth menu max time for prod
15. tton firmly If the overheat protection device trips frequently call a service engineer to establish the cause Emergency operation If the heat pump stops to work the additional immersion heater takes over the heat production during emergency operation Heating can therefore be obtained until the dealer or authorised service technician has remedied the fault Technical information Model EcoDan A W 190 Output Electric heater UK FR kW 3 Output Electric heater SE DE kW 9 Output circulation pump kW 0 2 Electric supply SE DE 400V 3N 50Hz Electric supply UK FR 220V IN 50Hz Fuse size SE DE AT 16 Fuse size UK FR AT 16 Hot water heater volume liters 185 Max working pressure bar MPa 9 0 9 Heating water Double section liters 45 volume Max working pressure SE DE bar MPa 1 5 0 15 Max working pressure UK FR bar MPa 2 5 0 25 Expension tank liters 12 Overheat protection C 90 Min flow heating system l s 0 Pump for heating system Wilo Star RS 25 6 3 Dimensions WxDxH mm 600x650x 1920 Weight excluding water kg 147 Weight including water kg 377 19 Version 1 4
16. uction of hot water peak factory setting 2 tim Time schedule Function to use a time to start hot water production 1 2 Select time schedule below menu for hot water Adjust the time to start the hot water production with bottom Enter Adjust the time with the bottom or and save the settings with Enter bottom Select Enabled to make the function active or inactive 14 Version 1 4 EcoDan Extra function Temperature Main menu All temperatures are readable in this menu Electrical heat In this menu you can select the size of immersion heater that is installed choose 6 or 9 kW With the or bottom and save with Enter Menu below can you select the time before you like to add the electrical heater Use or bottom to adjust the time save with Service In these menu are all parameters for ME 900 control unit readable Date clock In these menu sets time and date use arrow bottoms and or to set save with Enter bottom Solar energy Option not available in standard Pool Option not available in standard 15 Version 1 4 EcoDan EcoDan with plate heat exchanger Equipment and Fittings Filter Circulation Pump Diverting Valve Automatic Fuse Control Cabinet Outlet to Heat Pump In from Heat Pump Anode 9 Cold Water Inlet 10 Warm Water Outlet 11 Outlet to Radiator 12 Inlet from Radiator 13 Ventilator Os OF SA Tt te fe is
17. ump is delivered it is set for this control method A sensor is fitted on the outside wall of the house It sends signals to the control unit ME 900 in EcoDan Control with an outdoor sensor means that heat pump automatically regulates the heating in the house depending on the outdoor temperature If the outdoor temperatures drops it becomes colder the radiators inside the house will become warmer You determine the temperature of the radiators in relation to the outdoor temperature with help of a number of settings such as selection the heat curve on the control unit A lower curve gives higher energy savings Version 1 4 EcoDan Control with an outdoor sensor supplemented with room sensor Control with an outdoor sensor supplemented with a room sensor accessory means that you also place a sensor in a position inside the house this is connected to EcoDan and provides the control unit with information about the current room temperature The signals affect the heat curve s flow temperature For example it falls when the room sensors shows a higher temperature than the one set This control method is used when factors other than the outdoor temperature influence the indoor temperature Examples include the use of a stove or fan assisted radiator or if the house is sensitive to the wind Note It is only the room where the room sensor is located that can influence regulation of the temperature Version 1 4 EcoDan Control Panel
18. xample below present when the outdoor temperature is 0 C give an outgoing temperature on 42 C with actual curve slope Outgoing temperature C Outdoor temperature C Outgoing temperature The outgoing temperature is the temperature of the space water who controls by the three way valve normally connected to the under floor heating The water led out from the heat pump to the heat pump to the space When the outdoor temperature is 10 C and curve 6 is set the pump attempts to keep the return water at approximately 48 C Note On delivery the heat pump curve slope is set to position 6 This means that the return temperature is 38 C when is 0 C outdoors Outdoor temperature The outdoor temperature determines how much heating the heat pump should produce A sensor placed outdoors sends signals to the control unit which then adjusts the heat pump Curve slope Se below Set the heat curve slope or adjust the heat curve Adjust a single value Se below Set the heat curve slope or adjusts the heat curve 11 Version 1 4 EcoDan Set the heat curve slope or adjust the heat curve If you don t is satisfied with the indoor temperature when there is 0 C outdoor you can set a higher curve slope or adjust the curve in the current outdoor temperature This is to do 1 Select Heat in the main menu and the Radiator heat Heat curve The current curve is shown here The value 33 1 is the flow temperature at 5
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