Danfoss DHP-AL Opti Specifications

VMBMA502Installation and Service instructionsDHP-H Opti Pro, DHP-H, DHP-C, DHP-L, DHP-A, DHP-AL

10VMBMA5022.3 DHP-CDimensions and connectionsThe brine pipes can be connected on either the left or right-hand sides of the heat pump.DHP-C, Dimensio

11VMBMA502Left view Front view Right viewComponents114161510134351718192120242672223891112DHP-C, components.Figure 9: Position Name1 Water heater,

12VMBMA5022.4 DHP-L, DHP-L OptiDimensions and connectionsThe brine pipes can be connected on either the left or right-hand sides of the heat pump.DHP

13VMBMA502Left view Front view Right viewComponentsDHP-L, DHP-L Opti components.Figure 11: Position Name1 Auxiliary heater, immersion heater on su

14VMBMA5022.5 DHP-A, DHP-A OptiDimensions and connectionsThe brine pipes can be connected on either the left or right-hand sides of the heat pump.DHP

15VMBMA502Left view Front view Right viewComponentsDHP-A, DHP-A Opti, components.Figure 15: Position Name1 Water heater, 180 litres2 Defrosting

16VMBMA5022.6 DHP-AL, DHP-AL OptiDimensions and connectionsThe brine lines can be connected on either the left or right-hand sides of the heat pump.D

17VMBMA502Left view Front view Right viewComponentsDHP-AL, DHP-AL Opti components. Figure 19: Position Name1 Heating system supply line2 Brine

18VMBMA5022.7 Package contentsDelivery check1. Check that there is no transport damage. The heat pump is packaged in cardboard.2. Remove the plasti

19VMBMA5022.8 Heat pump control panelThe heat pump control panel consists of a display, four control but-tons and an indicator.Display, control butto

2VMBMA502If these instructions are not followed during installation, operation and maintenance, Danfoss AS’s liability according to the applicable war

20VMBMA5022.12 Space requirement, outdoor unit, DHP-A, -AL• Toensurethefunctionoftheoutdoorunit,theremustbeatleast300 mm of space behin

21VMBMA5024 Separating the heat pumpDoes not apply to DHP-A, -AL.If there is a shortage of space when transporting the heat pump to the installation

22VMBMA5025 Unpacking and installation5.1 Setting up• Theheatpumphasfeetthatcanbeadjusted20mmtocompen-sate for irregularities in the su

23VMBMA5028. Screw the outdoor unit onto the stand. Use 4 x M6x20 screws. It may be necessary to push and pull the stand slightly in order to get the

24VMBMA5026 Piping installation⚠NOTE! To prevent leaks, ensure that there are no stresses in the connecting pipes!⚠NOTE! It is important that the

25VMBMA502DHP-L, connection diagram VL systemGeneral connection diagram DHP-L.Figure 43: Position Name1 Supply line2 Return line3 Safety val

26VMBMA5026.2 D system, DHP-LWith a DHP-L in a D system, the heat pump can produce both heat-ing and hot water with the compressor and an external au

27VMBMA502DHP-AL, connection diagram VLDGeneral connection diagram DHP-AL, system VLD.Figure 49: Position Name1 Heat pump (part of the delivery)2

28VMBMA5026.7 Filling the water heater and heating sys-tem1. Fill the water heater with cold water by opening the filler valve (10) which is located

29VMBMA502Recommended distance between trunking on the wall and Figure 56: trunking on the heat pump is 300mm.7.1 Connect power supply, 400V 3N⚠NOT

3VMBMA502ContentsInstallation instructions ... 41 Important information/Safety regulations ...41.1 Refrigerant ...

30VMBMA5027.5 Resetting to system D or VLDFor a description of the different system solutions, see section Piping installation. The heat pump has VL

31VMBMA5028 Brine installation8.1 Heat sourcesBedrock heatTo use rock as the heat source one or more boreholes is/are drilled and the brine hose is

32VMBMA5028.2 Information collector pipe⚠Local rules and regulations related to type of collector must be followed.Borehole collector: Fully welded

33VMBMA5028.5 Connection diagramThe position lists show the components and parts included in the delivery in italics.DHP-C:General connection diagram

34VMBMA502DHP-AL:Connection diagram for brine pipes. Figure 69: Position Name1 Brine in2 Brine out3 Shut-off valve (part of the filler cock)

35VMBMA502Filler cockWhen the filler cock is installed on the return line, remember to turn the strainer cover upwards in order to minimise the amount

36VMBMA5029 Installing accessories/additional functions9.1 Room temperature sensorThe room temperature sensor has a temperature sensor that provides

37VMBMA50210 Start upNOTE! Read the safety instructions!⚠The installation may only be commissioned if the heating system, water heater and brine sy

38VMBMA502The pressure pipe should get hot during operation.Figure 76: 20. Check that:• thecompressorisrunningintherightdirectionbyputting

39VMBMA50211 Customer informationAfter installation and test operation, the customer must be informed about their new heat pump installation. Below i

4VMBMA502Installation instructions1 Important information/Safety regulations⚠The heat pump must be installed by authorised installation engineers a

40VMBMA502Service instructions12 The heat pump12.1 Function descriptionA heat pump utilises the free energy found in a natural heat source, such as

41VMBMA5021 Heat pump unit• Scrollcompressor• Stainlesssteelheatexchangers• Circulationpumpsforbrineandheatingsystems• Valvesandsafet

42VMBMA50212.4 Passive cooling function, DHP-CHeat pump DHP-C is equipped with an extra heat exchanger to use the passive cooling effect from the bri

43VMBMA50212.9 Water heater, DHP-H, -CDanfoss heat pumps DHP-H, -C, are supplied with an integrated 180 litre water heater. Water heater in DHP-H and

44VMBMA50212.11 Important parametersHeat production - calculatingThe indoor temperature is adjusted by changing the heat pump’s heat curve, which is

45VMBMA502ROOMIf you wish to increase or reduce the indoor temperature, change the ROOM value. The difference between changing the ROOM value and the

46VMBMA502HEATSTOPThe HEATSTOP function automatically stops all production of radiator heat when the outdoor temperature is equal to, or higher than,

47VMBMA502HYSTERESISIn order to start the heat pump in advance during sudden changes of the heat demand, there is a value, HYSTERESIS, which controls

48VMBMA502DEFR CURVE, defrosting curve for DHP-A, -ALTo start defrosting the outdoor unit for DHP-A, -AL, the control computer makes a calculation usi

49VMBMA50213 Control computer13.1 Function descriptionA control computer is used to automatically calculate the heat demand in the house where the h

5VMBMA5021123456Heat transfer circuitRefrigerant circuitBrine circuit1.4 Control and safety devicesTo ensure a correct function of the heat pump ther

50VMBMA50213.2 DisplayThe display of the control computer shows information about the heat pump’s operation, status and any alarms, in text form. The

51VMBMA502Message MeaningSTART Indicates that there is a demand for heating production and that no start delay is active.EVU STOP Indicates that the a

52VMBMA50214 Menus14.1 Main menu INFORMATIONThis menu is used to change the heat pump’s operating modes and adjust the heat curve. History and opera

53VMBMA502Sub menu INFORMATION -> OPERATIONUsed to select operating mode.Menu selection Meaning Factory setting (OFF)The installation is off. Any a

54VMBMA502Sub menu INFORMATION -> HEAT CURVE 2 The menu is active if the expansion card is installed and only appears if shunt group sensor is conn

55VMBMA502Sub menu INFORMATION -> DEFROST (DHP-A, -AL)The menu applies to DHP-A, -AL with defroster card and only appears if OUTDOOR AIR in the SER

56VMBMA50214.2 Main menu SERVICEThis menu is for use during installation and service to optimise and adjust the operation of the heat pump. Access th

57VMBMA502Sub menu SERVICE -> HOT WATERUsed to change the settings for hot water production.Menu selection Meaning Factory settingSTART Start tempe

58VMBMA502Sub menu SERVICE -> ADD. HEATUsed to change the heat pump stage’s operating settings.Menu selection Meaning Factory settingINTEGRAL A2 Tw

59VMBMA502Menu selection Meaning Factory settingALARM (Expansion card)0 = stop signal on output External alarm 1 = start signal on output External ala

6VMBMA5022 Heat pump information2.1 DHP-HDimensions and connectionsThe brine pipes can be connected on either the left or right-hand sides of the he

60VMBMA502Menu selection Meaning Factory settingSERVICETIME NOTE! Only used for test operation. Simulates time 60 times as fast, which means that the

61VMBMA502Menu selection Meaning Factory settingUNDER 5°C DEFR Safety defrosting occurs when the outdoor temperature has been below 5° for a setnumbe

62VMBMA502Menyval Betydelse FabriksinställningMAX TEMP. Max temperature of the water in the water heater. The temperature is measured on the peak sens

63VMBMA50215 Troubleshooting15.1 Alarm listShown in display in the event of an alarm. To reset alarms 1-5, set the operating mode to OFF or cut the

64VMBMA50215.3 Check pointsTemperaturesName ValuesCondensing temperature 0.5 – 1.5 °C above supply line temperatureEvaporation temperature 7 - 8 °C l

65VMBMA50215.4 Operational problemsALARM...

66VMBMA502Cause Troubleshooting Remedy6. The low pressure pressure switch opens too soon. •Incorrectpressureswitchinstalled.Higherbreak pressure

67VMBMA502Problem – Alarm HP (high pressure pressure switch)Cause Troubleshooting Remedy1. Blocked strainer in the heating system. Check that the str

68VMBMA502Cause Troubleshooting Remedy12. Overfilled refrigerant circuit. Using manometer apparatus and thermometer, check that the unit’s overheatin

69VMBMA502Cause Troubleshooting Remedy6. Defective compressor. Measurement check the voltage on the three phases (each to zero) at the compressor. De

7VMBMA502Left view Front view Right viewComponentsDHP-H, components.Figure 5: Position Name1 Water heater, 180 litres 2 Return line sensor, hea

70VMBMA502Cause Troubleshooting Remedy5. No or insufficient circulation in the heat-ing system. •Thatthestrainerisnotblocked.•Thatnoairisin

71VMBMA502Problem – Operating pressure switch open alternatively high hot gas temperature (indicated by med in the display’s lower left corner)Cause

72VMBMA502Cause Troubleshooting Remedy7. Lack of condensation insulation on cold water pipe and/or brine pipe. Establish where the condensation is com

73VMBMA502Cause Troubleshooting Remedy5. Circulation noise (whistling noise in the heating system). Check the heating system.•Closedvalves,chokeva

74VMBMA502Problem – Noise – miscellaneousCause Troubleshooting Remedy1. Vibrating protective sleeves on the pres-sure switches. Establish where the vi

75VMBMA502Cause Troubleshooting Remedy9. Insufficient exchange surface to transfer the heat pump’s output to the heater.(Only applies to heat pumps wi

76VMBMA502Cause Troubleshooting Remedy6. The heat pump has stopped on HIGH RETURN. •CheckwhattheMAXRETURNvalueissetat in the heat pump’s cont

77VMBMA502Cause Troubleshooting Remedy13. Changed conditions.Have you increased your heating and/or hot water demand? •Iftheheatpumphasbeendime

78VMBMA502Problem – Irregular indoor temperatureCause Troubleshooting Remedy1. The heat pump’s control computer is not set/adjusted to the customer’s

79VMBMA502Problem – Runs on electric heating elementCause Troubleshooting Remedy1. Operating mode ADD.HEAT is selected. If this operating mode is sel

8VMBMA5022.2 DHP-H Opti ProDimensions and connectionsThe brine pipes can be connected on either the left or right-hand sides of the heat pump.DHP-H,

80VMBMA502Problem – The auxiliary heater is in operation but not the compressorCause Troubleshooting Remedy1. Operating mode ADD.HEAT is selected. If

81VMBMA502Cause Troubleshooting Remedy7. The compressor runs backwards. The incoming phases have the incorrect sequence (only applies to 3-phase heat

82VMBMA502Cause Troubleshooting Remedy8. The compressor runs backwards. The incoming phases have the incorrect sequence (only applies to 3-phase heat

83VMBMA502Cause Troubleshooting Remedy14. Changed conditions. Have you increased your heating and/or hot water demand? •Iftheheatpumphasbeendim

84VMBMA502Problem – Short operating times despite heating demandCause Troubleshooting RemedyROOM and/or CURVE set too high in com-bination with a heat

85VMBMA502Problem – Build-up of ice under and around the outdoor unitCause Troubleshooting RemedyInsufficient drainage. Does a lot of ice accumulate

86VMBMA50216 Technical dataDHP-A, DHP-AL 6 8 10 12Refrigerant Type R404A R404A R404A R404AAmount kg 0,95 1,45 1,50 1,60Test pressure MPa 3,4 3,4 3,4

87VMBMA502The measurements are performed on a limited number of heat pumps which can cause variations in the results. Tolerances in the measuring meth

88VMBMA502DHP-H, DHP-L 4 6 8 10 12 16Refrigerant Type R407C R407C R407C R407C R407C R407CAmount kg 0,75 1,2 1,3 1,45 1,55 2Test pressure MPa 3,4 3,4 3

89VMBMA502DHP-L Opti6 8 10 12 16Refrigerant Type R407C R407C R407C R407C R407CAmount kg 1,2 1,3 1,45 1,55 2Test pressure MPa 3,4 3,4 3,4 3,4 3,4Design

9VMBMA502Left view Front view Right viewComponentsDHP-H Opti Pro, components.Figure 7: Position Name1 Water heater, 180 litres 2 Return line se

90VMBMA502DHP-H Opti ProRefrigerant Type R407C R407C R407C R407C R407CAmount kg 1,15 1,3 1,4 1,55 1,7Test pressure MPa 3,4 3,4 3,4 3,4 3,4Design press

91VMBMA502Appendix