Danfoss DHP-AX Spezifikationen

VMBMH302Danfoss DHP-AXInstallation and Service instructions

10 – Installation VMBMH3023.3 Supplied contents3.3.1 Control1. Check that there is no transport damage. 2. Remove the packaging and check that the

Installation – 11VMBMH3024 Unpacking and installation4.1 Assembling the stand (accessory) NOTE! Only place the heat pump on its short side as sh

12 – Installation VMBMH3025 Piping installation NOTE! To prevent leaks, ensure that there are no stresses in the connecting pipes! NOTE! It i

Installation – 13VMBMH3025.1.1 DHP-AX, VL systemFigure 7: General connection diagram.Position Name5 DHP-AX heat pump18 Water heater (accessory)21

14 – Installation VMBMH3026 Electrical Installation Electrical current! The terminal blocks are live and can be highly dangerous due to the risk

Installation – 15VMBMH302 When the cable is connected to the terminal block a screwdriver is used to open the terminal block, see fig-ure below. F

16 – Installation VMBMH302In the event of a surplus of heat the conditions are the opposite:ROOM FACTORIncreased room tempe-rature, °CActual room temp

Installation – 17VMBMH3028.3 Manual testTest operate and at the same time check the function of the tested components.8.3.1 Activate MANUAL TEST1.

18 – Installation VMBMH302Follow the instructions below to perform a calibration.1. Detach and remove any insulation by the sensor to be calibrated.2

Installation – 19VMBMH30210 Customer informationAfter installation and test operation, the customer must be informed about their new heat pump instal

2 – Service VMBMH302These instructions are valid for the following model of Danfoss heat pump:DHP-AXIf these instructions are not followed during inst

20 – Service VMBMH302Service instructions

Service – 21VMBMH30211 The heat pump11.1 Function descriptionA heat pump utilises the free energy from the sun and that is found in a natural heat s

22 – Service VMBMH30211.2 Heating and defrost functions11.2.1 HeatingDHP-AX is a heat pump that can produce heating for houses and water heaters. Ho

Service – 23VMBMH30211.2.2 Defrost functionDuring operation the air heat exchanger is cooled by the energy exchange at the same time as the humid-ity

24 – Service VMBMH302The heat pump unit consists of the following basic units: 1 Heat pump unit Compressor 2-way expansion valve Condense

Service – 25VMBMH302At outdoor temperatures colder than 0°C, supply water hotter than 40°C is sent out to the heating system and at outdoor temperatur

26 – Service VMBMH302Figure 22: The adjusted curve at -5°C Sometimes, at outdoor temperatures between -5°C and +5°C, part of the heat curve may need a

Service – 27VMBMH302The integral value is a measurement of the surface under the time axle and is expressed in degree minutes. The figure below shows

28 – Service VMBMH30211.5.9 DEFR CURVETo start defrosting the outdoor unit, the control system makes a calculation using the temperature of the incom

Service – 29VMBMH30212 Control panel12.1 Function descriptionThe heat pump has an integrated control system that is used to automatically calculate

Installation – 3VMBMH3021 About the instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.1 Introduction . . .

30 – Service VMBMH302The indicator at the bottom of the control panel has two modes: Lit continuously, the heat pump has power and is ready to pro

Service – 31VMBMH302Symbol MeaningDEFROST Displayed when defrosting is active.FAN Displayed when the fan is active.12.2.4 Operational informationShow

32 – Service VMBMH30213 Menu information13.1 INFORMATION menuThis menu is used to change the heat pump’s operating modes and adjust the heat curve.

Service – 33VMBMH30213.1.1 Sub menu INFORMATION -> OPERATIONUsed to select operating mode.Menu selection Meaning Factory setting (OFF)The installa

34 – Service VMBMH302Menu selection Meaning Factory settingPOOL (Expansion card)Only appears if POOL is selected. The temperature in the pool is contr

Service – 35VMBMH30213.1.5 Sub menu INFORMATION -> OPERAT. TIMEUsed to show the operating time for each component. Time given in hours.Menu select

36 – Service VMBMH30213.2 SERVICE menuThis menu is for use during installation and service to optimise and adjust the operation of the heat pump. Ope

Service – 37VMBMH30213.2.1 Sub menu SERVICE -> HOT WATERUsed to change the settings for hot water production.Menu selection Meaning Factory settin

38 – Service VMBMH302Menu selection Meaning Factory settingHYSTERESIS If the difference between the actual supply temperature and the calculated suppl

Service – 39VMBMH30213.2.5 Sub menu SERVICE -> INSTALLATIONUsed for settings that are set during installation.Menu selection Meaning Factory setti

4 – Installation VMBMH3021 About the instructions1.1 IntroductionThese instructions are split into two parts: installation instructions and service

40 – Service VMBMH302Menu selection Meaning Factory settingVERSION Shows the software version which is stored on the display card respectively the I/O

Service – 41VMBMH302

42 – Service VMBMH30214 Noise information14.1 Flexible hosesAll pipes should be routed in such a way that vibrations cannot be transmitted from the

Service – 43VMBMH30214.2 Preventative measuresSome of the following points can also be used when troubleshooting. Do not install heat pumps on wa

44 – Service VMBMH30215 Troubleshooting15.1 AlarmShown in display in the event of an alarm. To reset alarms 1-5, set the operating mode to OFF or cu

Service – 45VMBMH30215.2 Measurement pointsConversion table for sensors When reading the resistance of the sensors, the sensor leads must first b

46 – Service VMBMH302Break pressure pressure switchesRefrigerant Pressostat Break pressureR407C Low pressure pressostat 0.08 MPaOperating pressure swi

Service – 47VMBMH302Cause Troubleshooting Remedy8. Incorrect mix of anti-freeze, the concentration must be in accordance with instructions. Check the

48 – Service VMBMH302Cause Troubleshooting Remedy15. Blocked evaporator on the refrigerant side. Using manometer apparatus and ther-mometer, check tha

Service – 49VMBMH302Cause Troubleshooting Remedy9. External system shunt that clo-ses on time setting. Check for shunts or valves in the system, which

Installation – 5VMBMH302 Bleed valves must be installed where necessary. Radiator systems with closed expansion tanks must also be supplied wi

50 – Service VMBMH302Problem – Alarm MS (motor protection)Cause Troubleshooting Remedy1. Phase drop or blown fuse. Check that all phases are present

Service – 51VMBMH302Problem – Incorrect phase sequenceCause Troubleshooting RemedyThe incoming phases have the incorrect sequence (only applies to 3-p

52 – Service VMBMH302Cause Troubleshooting Remedy2. Brine temperature too low. Check the set value on ALARM BRINE in the heat pump’s control computer

Service – 53VMBMH302Cause Troubleshooting Remedy4. Overheating too high. Using manometer apparatus and ther-mometer check what the overheating readin

54 – Service VMBMH302Cause Troubleshooting Remedy11. Leak at soldered joint on water heater. Locate the leak. If there is a leak at the soldered joint

Service – 55VMBMH302Problem – Loud compressor noiseCause Troubleshooting Remedy1. Phase drop.The compressor attempts to start or operates on two phase

56 – Service VMBMH30215.4.4 Hot waterProblem – Temperature and/or quantityCause Troubleshooting Remedy1. Defective 3-way valve motor. Check the func

Service – 57VMBMH302Cause Troubleshooting Remedy10. Heat loss in the hot water pipe. Open the hot water tap, read off the tem-perature on the outgoing

58 – Service VMBMH302Cause Troubleshooting Remedy6. The heat pump has stopped on HIGH RETURN. • Check what the MAX RETURN value is set at in the heat

Service – 59VMBMH302Cause Troubleshooting Remedy12. Changed conditionsHave you increased your heating and/or hot water demand? • If the heat pump has

6 – Installation VMBMH302 Hazardous electrical voltage! The terminal blocks are live and can be highly dangerous due to the risk of electric shock

60 – Service VMBMH302Problem – irregular indoor temperatureCause Troubleshooting Remedy1. The heat pump’s control com-puter is not set/adjusted to the

Service – 61VMBMH302Problem – Runs on electric heating elementCause Troubleshooting Remedy1. Operating mode AUX. HEATER is selected. If this operating

62 – Service VMBMH302Problem – The auxiliary heater is in operation but not the compressorCause Troubleshooting Remedy1. Operating mode AUX. HEATER is

Service – 63VMBMH302Cause Troubleshooting Remedy7. The compressor runs backwards. The incoming phases have the incorrect sequence (only applies to 3-p

64 – Service VMBMH302Cause Troubleshooting Remedy7. The heat pump has stopped on HIGH RETURN. • Check what the MAX RETURN value is set at in the heat

Service – 65VMBMH302Cause Troubleshooting Remedy12. Overfilled refrigerant circuit. Using manometer apparatus and ther-mometer, check that the unit’s

66 – Service VMBMH302Cause Troubleshooting Remedy5. Changed conditions Have you increased your heating and/or hot water demand? • If the heat pump has

Service – 67VMBMH30215.4.7 Outdoor unitProblem – Noise/loud noiseCause Troubleshooting Remedy1. Positioning the outdoor unit. Determine whether the

68 – Service VMBMH302

Service – 69VMBMH302

Service – 7VMBMH302Installation instructions

VMBMH302

8 – Service VMBMH3023 Heat pump information3.1 DHP-AX3.1.1 Dimensions and connectionsThe stand shown in the image is an accessory.Figure 1: DHP-AX,

Service – 9VMBMH3023.2 Technical data DHP-AXDHP-AX 6 8 10 12R407C R407C R407C R407C1,6 1,6 2,5 2,73,4 3,4 3,4 3,43,1 3,1 3,1 3,1400 400 400 4002,0 2,