Danfoss DHP-H User Manual
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Danfoss DHP-H User Manual

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See also: Instruction and Installation Manual , Installation Manual
user's manual
DHP-H, DHP-l, DHP-C, DHP-a
Navigate the control computer's menus using:
To increase or reduce the set values use:
To adjust the room temperature: start by pressing
The degree information that now appears in the display is the
last desired room temperature.
To increase the temperature: press
To lower the temperature: press
The temperature you now require is registered immediately.
(After approximately ten seconds the desired room tempera-
ture appears in the display again, together with other infor-
mation.) The heat pump now starts to work to reach the new
temperature.
VUBMA102

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  • Page 1 DHP-H, DHP-l, DHP-C, DHP-a Navigate the control computer’s menus using: To increase or reduce the set values use: To adjust the room temperature: start by pressing The degree information that now appears in the display is the last desired room temperature.
  • Page 2 VUBMA102...

  • Page 3: Table Of Contents

    Calculating energy consumption, DHP-H, DHP-L, DHP-C . . . . . . . . . . . . . . . . .

  • Page 4: Important Information

    • Water expands when it is heated, this means that a small amount of water is released from the system via the overflow pipe. The water 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. Danfoss –  VUBMA102...

  • Page 5: Protection

    1 .2 .1 Corrosion Protection Due to the risk of corrosion, avoid using different types of sprays in the vicinity of the heat pump. This particularly applies to: • Solvents • Chlorinated cleaning agents • Paints • Adhesives VUBMA102 Danfoss – ...

  • Page 6: About Your Heat Pump

    The refrigerant then continues to the condenser. When condensing, the refrigerant supplies its heat energy to the heat transfer fluid circuit. The refrigerant’s temperature decreases and returns to a liquid state. Danfoss –  VUBMA102...

  • Page 7: Components

    2 .2 Components The Danfoss heat pump is a complete heat pump installation for heating and hot water. It has the market’s first compressor developed solely for heat pumps. It has an integrated 180 litre water heater and auxiliary heating. The water heater uses TWS, which stands for Tap Water Stratificator, which is technology that results in more effective heat transfer and effective lay- ering of the water in the water heater.

  • Page 8: Auxiliary Heat, Dhp-H, Dhp-L, Dhp-C

    2 .5 Water heater, DHP-H, DHP-C Danfoss heat pumps DHP-H, DHP-C, are supplied with an integrated 180 litre water heater. The temperature of the hot water cannot be adjusted. Hot water production does not cease at a determined temperature but when the operating pressure switch reaches its maximum operating pressure, which corresponds to a hot water temperature of approximately 0-°C.

  • Page 9: Water Heater, Dhp-A

    2 .6 Water heater, DHP-A Danfoss DHP-A is supplied with an integrated 180 litre water heater with a defroster tank outside the water heater that contains the anti-freeze. The difference between DHP-A’s water heater and other models is the defrost function of the outdoor unit, otherwise they are the same and have the same functions.
  • Page 10 Outdoor temperature Figure 4: Increasing or reducing the CurVe changes the slope of the curve If you increase the CURVE value, the heat curve will become steeper and when you reduce it, it will become flatter. Danfoss – 10 VUBMA102...
  • Page 11 -°C, the supply temperature will change gradually between 0°C and -10°C, maximum adjustment being reached at -°C. The figure below shows the adjusted CURVE -. The adjustment can be seen in the graph in the form of a bump. VUBMA102 Danfoss – 11...
  • Page 12 It is extremely important that the heating system in the house is trimmed correctly, see the ”Trimming the heating system” section for further information. Also remember that the value for HEATSTOP needs adjusting upwards for summer heating. Danfoss – 12 VUBMA102...
  • Page 13 Figure 7: starting and stopping heat pump operation based on integral values . The integral value calculation stops during hot water production and during heat stop. Integral value calculation resumes two minutes after completed hot water production to give the heating system time to stabilise the temperature. VUBMA102 Danfoss – 1...
  • Page 14 INTEGRAL A1 or to the stop value 0°min. SUPPLY TEMP. HYSTERESIS (∆t) ≥ x HYSTERESIS (∆t) ≥ x Compressor start (-0) TIME INTEGRAL Compressor stop Figure 8: Conditions for HYsTeresIs to force the integral value to change . Danfoss – 1 VUBMA102...

  • Page 15: Installation Principle, Dhp-H, Dhp-C

    2 .8 Installation principle, DHP-H, DHP-C The image shows the principles of a piping installation with all components. Return pipe Filler tap Supply pipe Safety valve, 9 bar Shut-off valve and cold water strainer Safety valve Flexible hoses Pressure gauge...

  • Page 16: Installation Principle, Dhp-L

    Figure 11: Principle solution for a piping installation . Safety valve,  bar Strainer Bleed and Brine in expansion tank Brine out Filling kit incl. strainer Shut-off valve Figure 12: Principle solution for a brine installation . Danfoss – 1 VUBMA102...
  • Page 17 NOTE! The fluid level in the tank Strainer must be above the highest point of the outdoor unit. Brine in Filling kit incl. strainer Brine out Shut-off valve Figure 14: Principle solution for a brine installation . VUBMA102 Danfoss – 1...

  • Page 18: Control Computer

    The display always shows the set ROOM value and the status of the heat pump. The main menu, INFORMATION, is opened by pressing the left or right buttons. From INFORMATION one of the four sub-menus can be opened: OPERAT.; HEATCURVE; TEMPERATURE and OPERAT. TIME. Danfoss – 18 VUBMA102...

  • Page 19: Display

    Indicates that the -way valve’s position is for hot water production. SYSTEM Indicates the set system VL / D / VL+F / D+F (+F indicates that a flow switch is installed) CLOCK Indicates that tariff control is active. VUBMA102 Danfoss – 19...
  • Page 20 EVU is active. NO DEMAND HEAT Indicates that there is no heating production demand. HIGHPRESS ERROR Alarm that indicates that the high pressure switch has deployed. Danfoss – 20 VUBMA102...
  • Page 21 Indicates that there is a heating production demand and will start in the specified number of minutes. ADD. HEAT Indicates that there is an auxiliary heater demand. Text specific to DHP-a Appears with applicable heat pump operating status text. Message Meaning DEFROST Indicates the temperature for defrost. VUBMA102 Danfoss – 21...

  • Page 22: Menus

    DHP-H, DHP-C, DHP-L Return INFORMATION OPERATION --- Cursor HEATCURVE Sub-menus TEMPERATURE OPERAT.TIME Figure 16: The main menu InFOrmaTIOn for DHP-H, DHP-C and DHP-l with sub menus . DHP-A Return INFORMATION OPERATION --- Cursor HEATCURVE Sub-menus TEMPERATURE OPERAT.TIME DEFROST Figure 17: The main menu InFOrmaTIOn for DHP-a with sub menus .
  • Page 23 HOT WATER In this mode the heat pump only produc- By the customer, es hot water, no heat goes to the heating if necessary. system. VUBMA102 Danfoss – 2...
  • Page 24 REDUCTION The temperature can be lowered using By the customer, an outside timer. The control computer if necessary. determines the drop. Danfoss – 2 VUBMA102...
  • Page 25 The integral is the heat system’s energy balance. BRINE OUT The temperature of the brine when it Not adjustable returns to the heat source. BRINE IN The temperature of the brine from the Not adjustable heat source. VUBMA102 Danfoss – 2...
  • Page 26 3 .2 .5 sub menu OPeraT . TIme, OPERAT.TIME DHP-H, DHP-L, DHP-C In the OPERAT.TIME menu you are able to view the HEATPUMP operating time of the installation. Operating times ADD. HEAT 1 cannot be reset but are accumulated during the ADD.
  • Page 27 • Step  = ADD.HEAT 1 + ADD.HEAT 2 = 9 kW • Step  = ADD.HEAT 2 + ADD.HEAT  = 12 kW • Step  = ADD.HEAT 1 + ADD.HEAT 2 + ADD.HEAT  = 1 kW VUBMA102 Danfoss – 2...
  • Page 28 + or -. (Change the start temperature for when defrosting is to begin). MANUEL DEFR By using the right-hand arrow and then By the customer, pressing +, defrost can be started manu- if necessary. ally (shunts +20°C for 10 minutes). Danfoss – 28 VUBMA102...

  • Page 29: Trimming The Heating System

    When the reference room has an even temperature of 20-21°C over a 2 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. VUBMA102 Danfoss – 29...

  • Page 30: Instructions

    Press either the right or left button once to open the INFORMATION main menu. The cur- sor 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. Danfoss – 0 VUBMA102...

  • Page 31: Adjusting A Specific Part Of The Heat Curve

    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. VUBMA102 Danfoss – 1...

  • Page 32: Reading Off Temperatures

    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. Press the left button three times to exit the menu. Danfoss – 2 VUBMA102...

  • Page 33: Calculating Energy Consumption, Dhp-H, Dhp-L, Dhp-C

    5 .8 Calculating energy consumption, DHP-H, DHP-L, DHP-C 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.

  • Page 34: Calculating Energy Consumption, Dhp-A

    Press the down button to move the cursor to the MANUAL DEFROST menu option. Press the right button once. Press the up button once to start defrost. Press the left button three times to exit the menu. Danfoss –  VUBMA102...

  • Page 35: Regular Checks

    (operating mode AUTO). For further information about alarms, see the ”Troubleshooting” section. VUBMA102 Danfoss – ...

  • Page 36: Checking The Brine Level

    (for example very hard water) that it is not suitable for filling the heating system. If unsure, contact your installer, see the “References” section. ⚠ Do not use any additives for water treatment in the heating system’s water! Danfoss –  VUBMA102...

  • Page 37: Checking The Safety Valve

    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 valve to the closed position (see figure above). Unscrew the cover and remove it. Remove the strainer. VUBMA102 Danfoss – ...

  • Page 38: Cleaning The Strainer For The Brine Circuit

    Check that the o-ring on the cover is not damaged. Screw the cover back into place. 10 Turn both shut-off valves to the open position. 11 Reinstall the insulation around the filling kit. 12 Start the heat pump. Danfoss – 8 VUBMA102...

  • Page 39: Accessories

    If the heat pump has an active alarm the text AL appears in the display. Contact your installer if you wish to supplement your heat pump installation with a room temperature sensor, see the ”References” section. VUBMA102 Danfoss – 9...

  • Page 40: Troubleshooting

    0°C instead. SENSOR Incorrect supply sensor. Electrical fault. Contact your FRONT Everything stops except the installer. circulation pump for the heat- ing system. SENSOR Return sensor fault. Electrical fault. Contact your RETURN installer. Danfoss – 0 VUBMA102...
  • Page 41 BRINEFLOW The flow switch was not active Brine’s flow is low. Contact your during the latest start. The installer. compressor stops and there is no hot water production. VUBMA102 Danfoss – 1...

  • Page 42: Terms And Abbreviations

    Heater element, element. Control computer The control computer controls the entire heating installation. All set- tings are stored and the history of the installation is registered here. The control computer’s settings can be changed via the display. Danfoss – 2 VUBMA102...
  • Page 43 The control computer determines the correct temperature of the water to be distributed to the heating system based on the heat curve. The indoor temperature is adjusted by changing the gradient of the heating system’s CURVE. VUBMA102 Danfoss – ...

  • Page 44: Default Settings In The Control Computer

    This will make it easier for you when you make your own adjustments. Setting Factory setting Customer specific settings ROOM 20°C OPERATION AUTO CURVE 0°C 10°C °C CURVE  0°C CURVE 0 0°C CURVE - 0°C HEATSTOP 1°C REDUCTION 2°C Danfoss –  VUBMA102...

  • Page 45: References

    Installation and commissioning have been carried out by: Piping installation Date: Company: Name: Telephone no.: electrical Installation Date: Company: Name: Telephone no.: system adjustment Date: Company: Name: Telephone no.: VUBMA102 Danfoss – ...
  • Page 46 VUBMA102...

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Dhp-cDhp-lDhp-a

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