User manual DHP-A DHP-A Opti DHP-AL DHP-AL Opti
Contents
1. The heat pump and the auxiliary heater are automatically controlled by the control system HEAT PUMP The control system is controlled so that only the heat pump unit compressor is allowed to operate In this operating mode peak heating charging anti legionella function of the hot water will not run because the auxiliary heater is not used AUX HEATER The control system only permits the auxiliary heater to be in operation HOT WATER In this mode the heat pump only produces hot water no heat goes to the heating system Caution If the operating mode HOT WATER is to be used for long periods during the winter the water in the heating system in the heating system must be drained otherwise there is a risk of frost damage 20 User manual VUBMA602 3 2 2 Symbols Table2 Symbols shown in the display Symbol Meaning HP Indicates that the compressor is in operation La 1 LIGHTNING Indicates that the auxiliary heater is in operation The num z ber indicates what additional step is activated fat HOUSE Indicates that the heat pump produces heat for the heating E system E TAP Indicates that the heat pump produces heat for the water l heater F FLOW SEN An F indicates that a flow sensor is installed SOR CLOCK Indicates that tariff control is active ma TANK Indicates the level of hot water in the water heater When hot water is produced2. increase or reduce the set values The INFORMATION menu is used to adjust the following e Operation Heat curves Temperatures 18 User manual VUBMA602 3 2 Operating time Menu system language The INFORMATION menu is opened by pressing the left or right buttons The indicator at the bottom of the control panel has three modes e Notlit means that the heat pump is not powered When the light shines continuously the heat pump has power and is ready to produce heat or hot water e Flashing means an active alarm Display The display shows information about the heat pump s operation status and any alarms in text form Operating mode and status indicated by symbols are also shown in the lower part which shows the heat pump s active processes Note To change the display language press the following sequence of buttons right arrow arrow down to bottom menu arrow right scroll between languages using or Then select language using right arrow User manual VUBMA602 19 3 2 1 Operating modes Table1 Shows the set operating mode of the heat pump Operating mode Meaning O OFF The installation is fully switched off This mode is also used to acknowledge certain alarms Caution If the operating mode OFF is to be used for long periods during the winter the water in the heating system in the heating system must be drained otherwise there is a risk of frost damage AUTO
3. required The figure below shows the different cir cuits and how they work together in the transfer of heat energy A fluid brine A filled hose is lowered into a lake buried in the ground or low ered into bedrock The cold brine obtains energy from the heat source by the fluid temperature in the hose being heated a few degrees by the surround ing heat source The fluid filled hose is also known as a collector The heated brine A is routed into the heat pump s evaporator 1 and heats the enclosed refrigerant B The heat in the enclosed refrigerant in the refrigerant circuit B is increased due to a pressure increase in the compressor 2 The extremely hot refrigerant which is now in a gaseous state continues into the condenser The heating system transports the heat energy out to the water heater radia tors or the under floor heating system which indirectly heat up the house 3 Here the refrigerant is cooled and relea ses its heat energy to the heating sys tem The refrigerant s temperature decreases and condenses back to a liq uid state The refrigerant is then trans ported through the expansion valve 4 where the pressure drops and the refrig erant starts to boil and then the process starts again Components The heat pump is a complete heat pump installation for heating and hot water It has an integrated hot water tank and auxiliary heater Using the TWS Tap Water Stratificator technique more effect
4. 1 Correct level 2 Level too low TR Figure6 Level brine During the first month of operation the brine level might drop a little which is quite normal The fluid level may also vary depending on the temperature of the heat source Under no circumstances however must the fluid level be allowed to drop so much that it is no longer visible in the expansion tank For DHP A DHP AL with pressurized brine circuit the manometer on the expansion tank must show approx 1 0 bar Always call your installer for refilling of refrigerant Checking the water level in the heating system The line pressure of the installation must be checked once a month The external manometer must show a value between 1 1 5 bar If the value is below 0 8 bar when the water in the heating system is cold the water must be topped up applies in the event of an empty expansion tank See missing heading target for information on where the manometer is loca ted You can use normal tap water when topping up the heating system In certain exceptional cases the water quality may be so poor for example User manual VUBMA602 33 6 4 6 5 very hard water that it is not suitable for filling the heating system If unsure contact your installer Note Do not use any additives for water treatment in the heating system s water A Note The closed expansion tank contains an air filled bladder that absorbs variations in the heating system s volume Und
5. 9 Message Meaning ERR PHASE SEQ HIGH RETURN Alarm that indicates that there is an incorrect phase sequence to the compressor Only display and only the first 10 minutes Alarm that indicates that high return temperature pre vents the compressor s operation In event of alarm the heat pump will if possible supply heating to the house primarily with the compressor secondarily with the additional heater Hot water will stop to indicate that something noteworthy has occurred 40 User manual VUBMA602 9 Terms and abbreviations Table 11 Terms and abbreviations Term Explanation Evaporator In the evaporator energy is retreived from the heat source and the refrigerant passing through the evaporator turns to gas De superheater In the de superheater part of the total heating output is released approx 15 A higher temperature than the normal condensation temperature can found here Integral INTEGRAL is the heating system s energy balance Heat generation is controlled by a calculated requirement This value is determined by comparing the actual supply tem perature with its calculated supply temperature The dif ference between the temperatures is added over time The resulting value is referred to as the integral The inte gral is calculated automatically The value of the integral can be viewed in the display under the sub menu TEM PERATURE Compressor The compre
6. C Remember that other rooms will have different temperatures during trimming but these are adjusted later 7 If the ROOM value must be adjusted more than 3 C upwards or downwards the CURVE value must be adjusted instead See Adjust ing CURVE values for more information 8 If the indoor temperature varies several degrees despite trimming a specific part of the heat curve may need adjusting Check at what outdoor temperature the variation is greatest and adjust the curve at the corresponding value CURVE 5 CURVE 0 CURVE 5 See Adjusting a specific part of the heat curve for more information 9 When the reference room has an even temperature of 20 21 C over a 24 hour period you can adjust the radiator valves in the other rooms so that their indoor temperatures are the same temperature or lower than the reference room User manual VUBMA602 23 5 Instructions An authorized installer carries out the basic settings of the heat pump at installation You can carry out the following yourself Setting operating mode Setting ROOM values Adjusting CURVE values Adjusting a specific part of the heat curve Setting the desired maximum and minimum supply temperature Setting HEATSTOP Reading off the hot water temperature or different temperatures in the heat pump Calculate the heat pump s total energy consumption For defrost the outdoor unit 5 1 Setting operating mode In the control computer you can choose between five o
7. HEAT 1 User manual VUBMA602 29 The specified outputs include the circulation pumps and also the outdoor unit s fan Table 7 Energy consumption DHP A 6 8 10 12 DHP AL Under floor 1 70 kw 2 30 kw 2 89 kW 3 18 kW heating Radiators 2 30 kW 2 80 kW 3 59 kw 4 09 kw Table 8 Energy consumption DHP A Opti 19 12 Under floor 1 62 kW 2 22 kW 2 72 kW 2 99 kW heating Radiators 2 22 kW 2 72 kW 3 42 kW 3 90 kW To calculate the energy consumption 1 o 0 N A Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option Press the down button to move the cursor to the OPERAT TIME menu option Open the menu by pressing the right button once Note how many hours the following values have HEAT PUMP ADD HEAT 1 ADD HEAT 2 and ADD HEAT 3 Find the value for the average output that corresponds to your heat pump and heating system in the table above and multiply it by the number of HEAT PUMP hours Note the result Multiply the number of ADD HEAT 1 hours by 3 Note the result Multiply the number of ADD HEAT 2 hours by 6 Note the result Multiply the number of ADD HEAT 3 hours by 6 Note the result Add up the multiplied values to obtain the total energy consump tion 30 User manual VUBMA602 5 9 Manual defrost outdoor unit If the heat pump requires defrosting you can run a defrosting procedure ma
8. UBMA602 3 1 Control computer Control system The heat pump hasanintegrated control system which automatically cal culates the heat demand in the house to ensure that the correct amount of heat is produced and emitted where necessary There are many differ ent values parameters which are required in order to do the calculation of the heat demand During installation and service the control panel is used to set and change values that have to be adapted according to the house demand The con trol panel consists of a display a keypad and an indicator In the display a simple menu system is used to navigate the desired settings and values User manual VUBMA602 17 During operation the display always shows the set ROOM value the oper ating mode and the status of the heat pump ROOM NO HEAT DEMAND OPERAT AUTO Figure4 Display keypad and indicator Position Description 1 The display text and symbols are only shown as examples Certain symbols cannot be displayed at the same time 2 Keypad Plus sign used to scroll up a menu or increase the values Minus sign used to scroll down a menu or reduce the values gt Right arrow used to select a value or open a menu lt Left arrow to cancel selection or exit a menu 3 Indicator The control system is operated via a user friendly menu system which is shown in the display Use the keypad s four navigation symbols to navi gate the menus and
9. User manual DHP A DHP A Opti DHP AL DHP AL Opti DHP C DHP H DHP H Opti Pro DHP L DHP L Opti VUBMA602 If these instructions are not followed during installation and service Danfoss A Sliability according to the applicable warranty is not binding Danfoss A S retains the right to make changes to components and specifi cations without prior notice 2010 Copyright Danfoss A S The Swedish language is used for the original instructions Other languages are a transla tion of original instructions Directive 2006 42 EG Contents 1 Important information 1 1 Safety precautions 4 1 2 Protection 2 Abo utyourh atp mbD au as au asan a u au t ana a gana 6 2 1 Priniciples of f cti i s u l a p a a aa a MS 6 2 2 COMPO EN ionin iens as aq wu ag Rar Ca 7 2 3 Outdoor and defroster function 2 4 Passive cooling function 25 Speed rpm control 2 6 HGW technology inie eira E a i Er A odie TAS 12 2 7 Auxiliary Ne atic k pakakuq elas kayana EENE EN 13 2 8 Water Nate ris ss P a a AS a dad da ana 14 3 Control COMPUTE Massena AAA NO eas 17 3 1 Control system 3 2 Display 4 Trimming the heating system u 23 5 IDStn etos a sau au aan awa ua asus 24 5 1 Setting Operating MOA Essien iain aiiai 24 5 2 Setting ROOM VALSA oe ua E O a a Gn 24 5 3 Adjusting CURVE Values cssssccssssssccsssssccssseccecsssseccssseccesnsscecsssseeessnececensseessussesecsneceecsuseeeesnsee
10. cannot raise the temperature suf ficiently within 3 5 hours the control checks if there is any heating require ment before the anti legionella function tries again In the control system s TEMPERATURE menu a number of measured and calculated temperatures for the hot water and supply are displayed The current temperature for the peak temperature sensor 2 and the temper ature of the supply line during heating and hot water production are dis played The temperature of the supply line often exceeds the maximum User manual VUBMA602 15 permitted hot water temperature but usually during hot water produc tion The hot water heaters for DHP A DHP A Opti DHP AL DHP AL Opti differ from the other heat pumpsin that the function for defrosting the outdoor unit is different The only difference between an DHP A DHP A Optiand an DHP AL DHP AL Opti is that the water heater is integrated in DHP A DHP A Opti and a separate unit for DHP AL DHP AL Opti The integrated 180 litre hot water heater has a defrosting tank mantle on the outside of the heater that contains heated brine approx 47 litres which is used during defrosting sd J 1 Tap hot water Symbol explanation Peak temperature sensor Defrosting tank Water heater TWS coil Cold water line Supply line to TWS coil oN DA Gn A WN Expansion outlet when outdoor unit is positioned at high level Figure 3 Water heater with defrosting tank 16 User manual V
11. changes Press the left button three times to exit the menu Adjusting a specific part of the heat curve To change a specified part of the heat curve 1 ON NUL d Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option Press the down button to move the cursor to the HEATCURVE menu option Open the menu by pressing the right button once The cursor is at the CURVE value Select CURVE 5 CURVE 0 or CURVE 5 using the up or down buttons Open your selection by pressing the right button once Raise or reduce the value with the up or down buttons Press the left button three times to exit the menu Setting MIN and MAX values To change MIN or MAX values 1 Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option Press the down button to move the cursor to the HEATCURVE menu option User manual VUBMA602 25 6 7 Open the menu by pressing the right button once The cursor is at the CURVE value Press the down button to move the cursor to MIN Open your selection by pressing the right button once The text row MIN is marked Raise or reduce the value with the up or down buttons Press the left button three times to exit the menu Repeat the procedure to change the MAX value but select MAX instead of MIN at step 4 5 6 Setting HEATSTOP To change HEATSTOP 1 6 7 Press eith
12. distributed around the house heating system a small proportion flows via an extra de superheater which heats the water before it enters the water heater A shunt valve controls the flow between hot water and heating system 12 User manual VUBMA602 2 7 During heating production the shunt ensures a certain flow over the de superheater to the water heater The flow through the shunt is continu ously regulated by the heat pump control by sending opening or closing pulses to the shunt Auxiliary heat DHP H DHP C DHP L DHP L Opti DHP H Opti Pro Ifthe heat demand is greater than the heat pump s capacity the auxiliary heater engages automatically in operating mode AUTO The auxiliary heater is made up of an electric heating element on the supply pipe that has two outputs ADD HEAT 1 and ADD HEAT 2 and can be controlled in three steps For three phase 400V 3N installations e Step 1 ADD HEAT 1 3 kW Step 2 ADD HEAT 2 6 kW e Step3 AUX HEAT1 AUX HEAT 2 9 kW For single phase 230V 1N installations not DHP C Step 1 ADD HEAT 1 1 5 kW Step2 ADD HEAT2 3kW e Step3 AUX HEAT1 AUX HEAT 2 4 5 kW In the event of an alarm the auxiliary heater engages automatically on the condition that operating mode AUTO is selected and that at least one additional step is permitted DHP A DHP A Opti DHP AL DHP AL Opti The auxiliary heater for 400V 3N heat pumps is made up of an electric heating element on the sup
13. e Electrical Installation o o o Direction of rotation of the compressor Outdoor sensor ACCOSSOTIOS snini s u a a sauna nasus Brine installation o o Type Of brieni ua aaa Filling number Of litres Leak test Function test safety valve Control computer o Basic settings Test operation o o Manual test carried out Noise check Customer information Control computer menus User manual Checking and filling heating system Alarm information Function test safety valve Strainers cleaning Trimming information Warranties 44 User manual VUBMA602 11 2 Installation carried out by Piping installation Date O a nikaaaqwayaqqaswikusyaaqqqaqayhsysaqs Company assasasensicSsasesscssnaneasnssssdsconssnanaoeaisenisese Names OOO cima ias data TeliNO l URANA RNANA Electrical Installation Date a wa quam uqaqa COMPANY 1 sua swwaawawassaiqqqaiua qa Nie ile A a u ua TeNO sina u uwa Nawa System adjustment Date OOO AARNE O Company o wanqa RER ENR Name C el uama SaS eaS renas sa dava niadi das User manual VUBMA602 45 System adjustment ENO e aa wau uqa ima 46 User manual VUBMA602 VUBMA602
14. e The cursor is at the OUTDOOR value Press the up or down button to move the cursor to the desired value 6 Open your selection by pressing the right button once A graph appears in the display 7 Move the cursor along the time axis using the up plus or down minus buttons An exact value at the relevant time is shown at the top of the display 8 Press the left button three times to exit the menu Calculating energy consumption DHP H DHP L The energy consumption calculation is difficult to specify exactly but the average output for a normal house with normal hot water consumption in the following tables gives a relatively accurate result for each heat pump and heating system Remember that the operating time for the heat pump installation must exceed one year before the specified values in the table are valid The energy consumption for legion operation is included in the hours for ADD HEAT 1 User manual VUBMA602 27 The indicated outputs include circulation pumps Table4 Energy consumption DHP H 4 6 8 10 12 16 DHP L Under 1 02kW 1 45kW 1 82kW 2 41 kW 2 83 kw 3 99 kW floor heating Radiators 1 38kW 1 84kW 2 33kW 3 04kW 3 60 kW 5 07 kw Table5 Energy consumption DHP L Opti DHP H Opti Pro Under floor 1 37 kW 1 74 kW 2 24 kW 2 64 kW 3 92 kw heating Radiators 1 76 kw 2 25 kW 2 85 kW 3 41 kW 5 0 kW Table 6 Energy con
15. e temperature difference can be exploited to cool the radiator circuit At the same time the collector is charged with energy before the cold periods of the year DHP Cis a complete installation for heating hot water and passive cooling where the control automatically ensures that the desired indoor climate is reached Because DHP C uses the same pipe system for heating and cooling it is important to use a temperature that does not cause conden sation on the pipe system when cooling If the system is not adapted to it Use of fan convectors is recommended Speed rpm control Applies from Opti A heat pump requires optimum conditions in the heating system and brine circuit in order to be able to run as efficiently as possible The tem perature difference between the heating system s supply line and return line must be constant between 7 10 C For the brine circuit a temperature difference of 3 C between supply and return line applies If the differences are greater or less the heat pump is less efficient and savings are lower A heat pump with speed controlled circulation pumps always ensures that they retain the temperature differences The control equipment detects if the balance is in jeopardy and increases or decreases the speed of the circulation pumps as necessary HGW technology The HGW technique is a new and unique method for hot water heating which is used in DHP H Opti Pro Atthe same time as the water is heated to be
16. e supply line is affected at CURVE 40 with different settings for ROOM FACTOR Table 9 In the event of a heating deficit ROOM FACTOR Desired room Actual room Set point for temperature temperature supply line C C C 0 20 18 40 1 20 18 42 2 20 18 44 User manual VUBMA602 37 ROOM FACTOR Desiredroom __ Actual room Set point for temperature temperature supply line C C C 3 20 18 46 4 20 18 48 In the event of a surplus of heat the conditions are the opposite Table 10 In the event of a heating surplus ROOM FACTOR ROOM FACTOR Actual room Set point for temperature supply line C C 0 20 22 40 1 20 22 38 2 20 22 36 3 20 22 34 4 20 22 32 The room sensor s display shows the actual indoor temperature in normal mode Todisplay the outdoor temperature press the up and down buttons at the same time To set the desired indoor temperature press either the up or down button Iftheheatpumphasanactive alarm the text AL appears in the display 38 User manual VUBMA602 8 1 Troubleshooting Alarm In event of alarm this is indicated in the display with the text ALARM and an alarm message see following table For alarms that are not reset auto matically acknowledgement is required Acknowledge the alarm by set ting the heat pump to operating mode OFF and then back to the desired operat
17. eesnnees 25 5 4 Adjusting a specific part of the heat curve 5 5 Setting MIN and MAX values 5 6 Setting HEATSTOR ys u a cs a a 26 5 7 Readingioff temperatures u u pe Ca 26 5 8 Calculating energy consumption u 27 5 9 Manual defrost outdoor unit A pa 31 6 Regular checks 6 1 Checking operation 32 6 2 Checking the brine level 6 3 Checking the water level in the heating system a 33 6 4 Checking the safety Valve u s aaa kanam aq aaa as 34 6 5 In the event of leakage 6 6 Cleaning the strainer for the heating system 35 6 7 Cleaning the strainer for the brine circuit 7 ACCESSOT ICS a aa Qhawa wawaqa m Stee hua a qana p OR qaa ss 37 VUBMA602 1 7 1 ROOM SENSO csi y a EETA S aaa aqa aa na a a Qa aaa Sa udus 37 8 Troubleshooting ssa isa daria anda aQ Bu a saa RNN RRR 39 8 1 Alarm u ass EN Lk ORE aaa E PR Wawa PRETA 39 9 Terrm sand iabbrevViatiohsu A n Sam Q Quase eng 41 10 Default setting in the control computer 43 11 References 11 1 Check list 11 2 Installation carried out by 2 VUBMA602 Important information Note If the installation is not used during the winter the heating system must be drained of water otherwise there is a risk of frost damage to the installation The system can be considered maintenance free but certain checks are necessary Before changing the contro
18. er no circumstances may it be drained of air Checking the safety valve Both the safety valves for the heating system must be checked at least four times a year to prevent lime deposits clogging the mechanism See missing heading target for information on where the safety valves are located The safety valve of the water tank protects the enclosed heater against over pressure in the water tank It is mounted on the cold water inlet line its outlet opening facing downwards If the safety valve is not checked regularly the water tank might be damaged It is quite normal that the safety valve lets out small amounts of water when the water tank is being charged especially if a lot of hot water was used previously Both safety valves can be checked by turning the cap a quarter of a turn clockwise until the valve lets out some water through the overflow pipe If a safety valve does not work properly it must be replaced Contact your installer The opening pressure of the safety valves is not adjustable In the event of leakage In the event of leakage in the hot water pipes between the unit and water taps close the shut off valve on the cold water inlet immediately Contact your installer In the event of leakage in the brine circuit turn off the heat pump and call your installer immediately 34 User manual VUBMA602 6 6 Cleaning the strainer for the heating system Note The heat pump must be switched off at the main swi
19. er the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option Press the down button to move the cursor to the HEATCURVE menu option Open the menu by pressing the right button once The cursor is at the CURVE value Press the down button to move the cursor to HEATSTOP Open your selection by pressing the right button once The text row HEATSTOP is marked Raise or reduce the value with the up or down buttons Press the left button three times to exit the menu 5 7 Reading off temperatures Reading the hot water temperature 1 Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option Press the down button to move the cursor to the TEMPERATURE menu option Open your selection by pressing the right button once Press the down button to move the cursor to HOTWATER The value shown at the HOTWATER menu option is the hot water s current value Open your selection by pressing the right button once A graph of the hot water temperature over the last hour is shown 26 User manual VUBMA602 5 8 6 Press the left button three times to exit the menu To view the TEMPERATURE history 1 Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option 2 Press the down button to move the cursor to the TEMPERATURE menu option 3 Open the menu by pressing the right button onc
20. erating mode AUTO is selected and that at least one additional step is permitted Water heater Danfoss heat pumps DHP H DHP H Opti Pro DHP C supplied with an integrated 180 litre water heater They are equipped with a TWS coil that 14 User manual VUBMA602 means more effective heat transfer and efficient layering of the water in the water heater Symbol explanation 1 Tap hot water Peak temperature sensor Water heater TWS coil Supply line to TWS coil 2 3 4 5 Start temperature sensor 6 7 Return line from TWS coil 8 Cold water line Water heater for DHP H DHP H Opti Pro DHP C Hot water production is prioritised ahead of heat production i e no heat is produced when there is a hot water demand at the same time Thetemperature ofthe hot water cannot be adjusted Normally hot water production does not cease at a determined temperature but when the compressor s operating pressure switch reaches its maximum operating pressure which corresponds to a hot water temperature of approximately 50 55 C Using a regular time interval the water in the water heater is given extra heat by the integrated auxiliary heater to prevent the build up of bacteria anti legionella function The factory set time interval is seven days can be adjusted When the anti legionella function is active the heat pump produces hot water until the temperature for the start temperature sensor 5 has reached 60 C If the heat pump
21. for the water heater this is indicated by a flashing icon for the tank A lightning symbol by the symbol indicates peak heating charging anti legionella function SQUARE Either indicates that the operating pressure switch has deployed or that the pressure pipe temperature has reached its maximum temperature DEFROST Appears when defrosting is activated applies to DHP A THE DHP A Opti DHP AL DHP AL Opti FAN Displayed when the fan is active applies to DHP A DHP A ef Opti DHP AL DHP AL Opti L Low speed H High speed COOLING Displayed if cooling is produced A Active cooling User manual VUBMA602 21 3 2 3 Operational information Table3 Shows information about the heat pump Message Meaning ROOM Shows the set ROOM value Standard value 20 C If the accessory room sensor is installed it shows the actual temperature and the desired indoor temperature is shown within brackets START Indicates that there is a need for heat production and that the heat pump will start EVU STOP Indicates that the additional function EVU is active This means that the heat pump is off as long as EVU is active NO HEAT DEMAND Indicates that there is no heating production demand HEAT PUMP START Indicates that there is a heating production demand and XX will start in XX number of minutes HEAT PUMP AUX Indicates that heat production is active with both com HEAT pressor a
22. ing mode Message Meaning HIGH PRESSURE ERROR Tripped high pressure switch Compressor stopped LOW PRESSURE ERROR Tripped low pressure switch Compressor stopped MOTOR P ERROR Deployed overload relay Overcurrent relay compressor deployed overload relay for outdoor unit fan On certain models alarms from the brine pump and soft starter can also occur Compressor stopped BRINE OUT Brine out is less than the set minimum temperature Com pressor stopped No hot water production BRINEFLOW LOW Flow sensor not active during last start Compressor stop ped No hot water production AUX HEATER Overheating protection deployed No auxiliary heater OUTDOOR SENSOR Fault in outside sensor When the control system calcu lates the heat demand zero degrees is used SUPPLY LINE SEN SOR Supply line sensor error Everything stops except the heating system s circulation pump RETURN LINE SEN SOR Return sensor fault Return temperature Supply line 5 is used Calculated supply temperature limited to maxi mum 45 C HOT WATER SENSOR Fault on sensor for start temperature No hot water pro duction DEFROST SENSOR Defrost sensor fault Heat and hot water production is instead controlled to the outdoor sensor s value applies to DHP A DHP A Opti DHP AL DHP AL Opti SENSOR COOLING Sensor fault Cooling function stops User manual VUBMA602 3
23. ive heat transfer and efficient layering of the water in the water heater is achieved The heat pump is equipped with control equipment which is operated via a control panel User manual VUBMA602 7 Heat enters the house via a water borne heating system The heat pump supplies as much of the heat demand as possible before auxiliary heating is engaged and assists 8 User manual VUBMA602 The heat pump unit consists of five basic units 1 Symbol explanation Heat pump unit Compressor Stainless steel heat exchanger Circulation pumps for brine and heat ing systems Valves and safety equipment for cool ing systems and corresponding elec trical components Water heater Internal anti corrosion protection with copper or made completely of stainless steel It has an anode that normally does not require replacing which means that it is maintenance free Exchange valve or shunt valve The heated water either passes through to the heating system or to the water heater depending on whether heating or hot water is to be produced User manual VUBMA602 9 2 3 Symbol explanation 4 Auxiliary heat Immersion heater installed on the heating system s supply line Covers the demand of extra energy if the heat pump s capacity is exceeded e Automatically connected if operating mode AUTO is selected 5 Control equipment e Control panel Temperature sensors outdoor sup ply line return li
24. l computer s settings first find out what these changes mean Contact your installer for any service work 1 Caution This apparatus is not intended for persons including children with reduced physical sensory or psychological capacity or who do not have knowledge or experience unless supervised or they have received instructions on how the apparatus functions from a safety qualified person User manual VUBMA602 3 1 1 Safety precautions 1 1 1 Installation och underhall DANGER Only authorized installers may install operate and carry out maintenance and repair work on the heat pump DANGER Only authorized electricians may modify the electrical installation DANGER DANGER TO LIFE Only authorized refrigeration technicians may work on the refrigerant circuit 1 1 2 F r ndringar av systemet Only authorized installers may carry out modifications on the following components e The heat pump unit e The pipes for the refrigerant brine water and power The safety valve Do not carry out construction installations that may affect the operational safety of the heat pump 1 1 3 S kerhetsventil The following safety precautions apply to the hot water circuit s safety valve with corresponding overflow pipe Never block the connection to the safety valve s overflow pipe e Water expands when it is heated this means that a small amount of water is released from the system via the overflow pipe The wate
25. nd auxiliary heater START_MIN Indicates that there is a demand for heating production but that a start delay is active AUX HEATER Indicates that there is an auxiliary heater demand COOLING Displayed if cooling is produced passively COOLING A Displayed if cooling is active DEFROST X Y Displayed when defrosting is active X shows the actual reached temperature Y shows at which temperature defrost is complete applies to DHP A DHP A Opti DHP AL DHP AL Opti 22 User manual VUBMA602 Trimming the heating system To obtain a heating system balance and obtain an even and comfortable indoor temperature you must adjust your heating system according to the example below Note Adjust the heating system during the winter to obtain the greatest possible output Note Trimming must be carried out over a few days as the inertia in the heating system causes the indoor temperature to change slowly 1 Choose one of the house s rooms as a reference room for the indoor temperature where the highest temperature is required 20 21 C 2 Place a thermometer in the room 3 Open all the heating system s radiator valves fully Leave the heat pump s ROOM value set at 20 C See Setting ROOM values for more information 5 Note the temperature in the reference room at different points in time over a 24 hour period 6 Adjust the ROOM value so that the reference room reaches your required indoor temperature of 20 21
26. ne brine and hot water e Room sensor option The control equipment controls the heat pup unit s included components compressor circulation pumps auxiliary heaters and exchange valve and determines when to start and stop the pump as well as producing heat for the house or hot water Outdoor and defroster function DHP A DHP A Opti DHP AL DHP AL Opti are equipped with an outdoor unit that uses air as a heat source down to 20 C The outdoor unit has a coil where brine recovers free energy from the outside air It also has a fan that increases the airflow through the coil During operation the coil is cooled by the energy exchange at the same time as the humidity causes it to become covered in frost DHP A DHP A Opti DHP AL DHP AL Opti have an automatic function to defrost the coil using the produced heat energy If necessary a defrosting sequence starts which means the fol lowing e The defrosting sequence starts when the temperature of the brine reaches its set parameter for defrosting The compressor is stopped so that the defrosting sequence should not load the compressor unnecessarily On the other hand the com pressor is not stopped when it produces hot water because the water 10 User manual VUBMA602 heater is cooled when defrosting The fan on the outdoor unit is stop pedin conjunction with defrosting to shorten the time of defrosting The shunt valve in the heat pump opens so that hot brine from the defr
27. nually from the control computer To defrost manually 1 Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option 2 Press the down button to move the cursor to the DEFROST menu option 3 Open the menu by pressing the right button once Press the down button to move the cursor to the MANUAL DEFROST menu option 5 Press the right button once 6 Press the up button once to start defrost 7 Press the left button three times to exit the menu User manual VUBMA602 31 6 1 6 2 Regular checks Checking operation During normal operation the alarm indicator lights green continuously to show that everything is OK When the alarm is triggered it flashes green at the same time as a text message is shown in the display LARM LAGTRYCK LOST Figure5 Alarm i indication Regularly check the alarm indicator to ensure that the installation is work ing correctly It is not always the case that you will notice a problem with the installation for example in the event of a fault with the compressor the auxiliary heater starts automatically operating mode AUTO Checking the brine level The brine circuit must be filled with the correct amount of fluid otherwise the installation may become damaged 32 User manual VUBMA602 6 3 The brine must be topped up when the level drops so that it is no longer visible in the expansion tank
28. om circuit the refrigerant circuit which it then transports to the water tank or heating system Heat curve The control computer determines the correct tempera ture of the water to be distributed to the heating system based on the heat curve The indoor temperature is adjus ted by changing the gradient of the heating system s CURVE 42 User manual VUBMA602 10 Default setting in the control computer The first column in the table below shows the parameters that can be adjusted by the User The second column shows settings made at the factory and the third column the settings made by the installation con tractor in connection with installation of the heat pump Make sure that the installation contractor enters any settings made during installation that are particular to your heat pump This will make it easier for you when you make your own adjustments Table 12 Default setting in the control computer Setting Factory setting Any customer spe cific settings ROOM 20 C OPERAT AUTO CURVE 40 C MIN 10 C MAX 55 C CURVE 5 oX CURVE 0 oX CURVE 5 oX HEAT STOP 17 C User manual VUBMA602 43 11 References 11 1 Checklist Installed model Setting up o Surface adjustment Piping installation o o o o Leak test Bleeding Open radiator valves Function test safety valv
29. osting tank is mixed with the cold brine circulating to the outdoor unit The mixture has a temperature of about 15 C The fifteen degree heated brine melts the frost on the outside of the coil at the same time as the liquid is cooled When the brine is no longer cooled to temperatures below 11 C the coil is sufficiently defrosted The shunt valve closes the flow of hot brine from the defrosting tank Operation returns to normal The unit DHP A DHP A Opti DHP AL DHP AL Opti consists of the fol lowing basic components ER e Circulation pumps for brine and heat 1 Heat pump unit Compressor e Stainless steel heat exchanger ing systems Figure2 The figure e Valvesand safety equipment for cool shows DHP AL equipped ing systems and corresponding elec with a separate water trical components heater 2 Water heater e Internalanti corrosion protection with copper or made completely of stainless steel e Ithasananodethatnormally does not require replacing which means that it is maintenance free Defrosting tank containing heated brine for defrosting the outdoor unit 3 Outdoor unit e Heat exchanger e Fan User manual VUBMA602 11 2 4 2 5 2 6 Passive cooling function Heat pump DHP C is equipped with an extra heat exchanger to use the passive cooling effect from the brine Because the temperature in the col lector borehole or equivalent is lower than the indoor temperature th
30. perating modes To change the operating mode 1 5 Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option Open your selection by pressing the right button once An asterisk indicates the current operating mode Mark the new desired operating mode using the up or down but ton Press the right button once to confirm your choice The asterisk moves to your selected operating mode Press the left button twice to exit the menu 5 2 Setting ROOM values If the indoor temperature is too high or too low you can adjust the ROOM value to change the indoor temperature To change the ROOM value 1 Press either the up or the down button once to open and change the ROOM value 24 User manual VUBMA602 5 3 5 4 5 5 2 3 Raise or reduce the ROOM value using the up or down buttons to change the indoor temperature Wait ten seconds or press the left button once to exit the menu Adjusting CURVE values To change the CURVE value 1 6 Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option Press the down button to move the cursor to the HEATCURVE menu option Open the menu by pressing the right button once The cursor is at CURVE Open your selection by pressing the right button once Raise or reduce the value with the up or down buttons The graph shows how the curve slope
31. ply line that has three outputs AUX HEAT 1 AUX HEAT 2 and AUX HEAT 3 and can be controlled in five steps Step 1 ADD HEAT 1 3 kW Step 2 ADD HEAT 2 6 kW Step 3 AUX HEAT 1 AUX HEAT 2 9 kW e Step 4 ADD HEAT 2 ADD HEAT 3 12 kW only connected at switched off compressor e Step 5 ADD HEAT 1 ADD HEAT 2 TILLSATS 3 15 kW only con nected at switched off compressor User manual VUBMA602 13 2 8 e Step 4 ADD HEAT 2 ADD HEAT 3 12 kW compressor operation permitted e Step 5 ADD HEAT 1 ADD HEAT 2 ADD HEAT 3 15 kW com pressor operation permitted The two power steps step 4 and step 5 cannot be activated when the compressor is running There are further auxiliary heating steps step 4 and step 5 which means that these additional steps can be activated whilst the compressor is running Step 4 and 5 must only be selected on the condition that the building where the heat pump is installed has a large heating demand and the building s electric installation is suitable for high current consumption The auxiliary heater for 230V 1N heat pumps is made up of an electric heating element on the supply line that has two outputs AUX HEAT 1 and AUX HEAT 2 and can be controlled in three steps e Step 1 ADD HEAT 1 1 5 kW Step 2 ADD HEAT 2 3 kW Step3 AUX HEAT 1 AUX HEAT 2 4 5 kW In the event of an alarm the auxiliary heater engages automatically on the condition that op
32. r that exits the overflow pipe can be hot Therefore allow it to flow to a floor drain where there is no risk of burning yourself 4 User manual VUBMA602 1 2 Protection 1 2 1 Korrosionsskydd Due to the risk of corrosion avoid using different types of sprays in the vicinity of the heat pump This particularly applies to Solvents e Chlorinated cleaning agents Paints e Adhesives User manual VUBMA602 5 2 About your heat pump 2 1 Principles of function A heat pump utilises the free energy from the sun and that is also found in a natural heat source such as rock ground ground water or air The heat pump can be compared to a reversed refrigerator in a refrigerator heat is transferred from the inside of the refrigerator to the outside whereas in a heat pump the solar energy that is stored in a heat source is transferred to the inside of the house The heat pump uses the solar energy in the heat source and gives back two to three times more heat energy than it uses in electrical energy The heat pump is therefore a very envi ronmentally friendly and economical way of heating a house UY se s JE gt E MAN Sam Figure1 The relationship between consumed electrical energy and free solar energy In order for the heat pump to be able to retrieve heating energy from the heat source and transfer it to the heating system of the house three sep 6 User manual VUBMA602 arate fluid circuits are
33. ssor raises the temperature and pressure of the refrigerant Condenser In the condenser the refrigerant supplies its heat energy to the heat transfer fluid circuit Curve The CURVE value is set via the display The set value is the calculated set point value of the flow line at outdoor tem perature of 0 C Brine Is a water based mixture that transports energy from the heat source to the heat pump Brine circuit The fluid circuit transports energy from the heat source to the heat pump Refrigerant circuit Is the circuit in the heat pump that through evaporation compression and condensation takes energy from the brine circuit and supplies it to the heat transfer fluid circuit Refrigerant Is the fluid that transports heat from the brine circuit and supplies it to the heat transfer fluid circuit Radiator Heater element element User manual VUBMA602 41 Term Explanation Control computer The control computer controls the entire heating instal lation All settings are stored and the history of the instal lation is registered here The control computer s settings can be changed via the display Room Heat transfer fluid If ROOM shows 20 C the heat curve is unaffected If ROOM shows higher or lower this indicates that the heat curve has been adjusted up or down to change the indoor tem perature The heat transfer fluid circuit obtains heat energy fr
34. sumption DHP C 4 5 6 7 8 10 Under 1 15 kW 1 40 kW 1 59 kW 1 70 kW 2 00 kW 2 55 kw floor heat ing Radiators 1 30 kW 1 55 kW 1 88 kW 1 95 kW 2 36kW 3 03 kW To calculate the energy consumption 1 Press either the right or left button once to open the INFORMATION menu The cursor is in the OPERATION menu option 28 User manual VUBMA602 6 7 8 Press the down button to move the cursor to the OPERAT TIME menu option Open the menu by pressing the right button once Note how many hours the following values have HEATPUMP ADD HEAT 1 and ADD HEAT 2 In the tables above find the value for the average output that cor responds to your heat pump and heating system and multiply it by the number of HEAT PUMP hours Note the result Multiply the number of ADD HEAT 1 hours by 3 Note the result Multiply the number of ADD HEAT 2 hours by 6 Note the result Add up the multiplied values to obtain the total energy consump tion DHP A DHP AL The energy consumption calculation is difficult to specify exactly but the average output for a normal house with normal hot water consumption inthefollowing tables givesarelativelyaccurateresultforeachheatpump andheating system Rememberthatthe operating timeforthe heatpump installation must exceed one year before the specified values in the table are valid The energy consumption for legion operation is included in the hours for ADD
35. tch before cleaning can be started Note The heating circuit s strainer must be cleaned twice a year after installation The interval can be extended if there is evidence that cleaning twice a year is not necessary E 1 Strainer De 2 O ring Cover Figure 7 Dirt in the heating system Note Have a cloth to hand when opening the strainer cover as a small amount of water usually escapes To clean the strainer Switch off the heat pump Turn the shut off cock to the closed position see figure above Unscrew the cover and remove it Remove the strainer Rinse the strainer Reinstall the strainer Check that the o ring on the cover is not damaged Screw the cover back into place 10 00 Sq OV Dh e Db F Turn the shut off cock to the open position User manual VUBMA602 35 10 Start the heat pump 6 7 Cleaning the strainer for the brine circuit Note The heat pump must be switched off at the main switch before cleaning can be started Note The brine circuit s strainer must be cleaned twice a year after installation The interval can be extended if there is evidence that cleaning twice a year is not necessary 1 Shut off valve 2 Cover 3 O ring 4 Strainer 5 Shut off valve To clean the strainer Switch off the heat pump Remove the insulation around the filler cock Turn both shut off cocks to the closed position see figure above Unscrew the cover and remove it Remo
36. ve the strainer Rinse the strainer Reinstall the strainer CoN Or T he Check that the o ring on the cover is not damaged 9 Screw the cover back into place 10 Turn both shut off cocks to the open position 11 Reinstall the insulation around the filler cock 12 Start the heat pump 36 User manual VUBMA602 7 1 Accessories Room sensor Contact your installer if you wish to supplement your heat pump instal lation with a room sensor The room sensor is an accessory that is used to set a desired indoor tem perature It can be installed in the house where the room temperature is relatively constant not in a hallway kitchen or a room with alternative heating On the room sensor you can set the desired room temperature and view the outdoor temperature The room temperature sensor has a temperature sensor that provides a further value that the control computer can use when calculating the supply temperature The impact of the room sensor in the calculation can be set in the menu HEAT CURVE gt ROOM FACTOR Default setting for ROOM FACTOR is 2 but can be adjusted from 0 no impact to 4 large impact The difference between the desired and actual indoor temperature is multiplied by the set value for ROOM FACTOR The set point on the heating system s supply line increases or decreases with the result depending on whether there is a deficit or surplus of heat The table below shows exam ples of how the set point for th
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