Danfoss DHP-AT User Manual
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- Installation and service instructions manual (38 pages) ,
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Summary of Contents for Danfoss DHP-AT
- Page 1 MAKING MODERN LIVING POSSIBLE User Guide DHP-AT www.heating.danfoss.com...
- Page 2 The English language is used for the original instructions. Other languages are a translation of the original instructions. (Directive 2006/42/EC) © 2011 Copyright Danfoss A/S...
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Page 3: Table Of Contents
Service Sheet ..............Danfoss Heating Solutions... -
Page 4: Foreword
Buying a heat pump from Danfoss is an investment in a better future. A Danfoss heat pump is classed as a renewable energy source, which means that it is consid- erate of our environment. It is a safe and convenient solution that provides heating, hot wa- ter and in certain cases cooling, for your home at a low cost. -
Page 5: Safety Precautions
▪ 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 your- self. Danfoss Heating Solutions VUGFC20202... -
Page 6: About Your Heat Pump
The default function when starting the heat pump for the first time is house heating/DHW automatic mode. The production of hot water is prioritized. When the hot water temperature reaches the set point, the heat pump automatically switches to house heating or cooling depending on the user settings. VUGFC20202 Danfoss Heating Solutions... - Page 7 Initial supply line temperature Supply line water temperature Working range in AUTO mode Outdoor ambient air temperature The recommended heating curves for radiator heating are curves 43-45. The recommended heating curves for under-floor heating are curves 32-34. Danfoss Heating Solutions VUGFC20202...
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Page 8: Internal Electrical Heater
When this protective function is triggered, the controller will display either "Err 18" or "Err 19" depending on the temperature in the system, this is not a fault. The unit will automatically recover once the conditions in the control system is met. VUGFC20202 Danfoss Heating Solutions... -
Page 9: Control System
The indicator next to the power ON/OFF button on the operator panel is lit green when power is supplied and the operator panel is connected to the heat pump. When the heat pump is started (using the power button), it is confirmed by a symbol on the display. Danfoss Heating Solutions VUGFC20202... -
Page 10: Display
Indicator for hot water tank electrical heater Domestic Hot Water (DHW) Hot water tank temperature Interface locked Buffer tank water temperature Indicator for house heating/cooling function The display shows the available menus and the default or configured settings. VUGFC20202 Danfoss Heating Solutions... -
Page 11: Menu Information
2. Before the flashing stops, press the buttons to navigate between the menus. The current parameter value for a menu setting is displayed in the right-hand side of the window. The default value can be found further on in this user guide. Danfoss Heating Solutions VUGFC20202... -
Page 12: Turning Power On/Off
The indicator (2) on the operator panel is lit green when the operator panel is powered on and connected to the control system. If the heat pump is turned off, only current time is displayed. When the heat pump is turned on from the operator panel (3), the current operation and status will be displayed. VUGFC20202 Danfoss Heating Solutions... -
Page 13: Settings And Adjustments
Changing heat curve and desired room temperature is only available in AUTO mode. Heat curve 1. To select another heating curve, press for 5 seconds. 2. Use buttons to navigate to Menu 00. 3. Press again. Danfoss Heating Solutions VUGFC20202... -
Page 14: Setting Current Time
Timer OFF. 3. Press again. 4. Use buttons to to change the default minute setting for Timer OFF. 5. Press before the flashing stops or wait 5 seconds. Cancelling Timer settings VUGFC20202 Danfoss Heating Solutions... -
Page 15: Changing Mode From Auto To Manual
10 minutes. If the defrost symbol disappears almost immediately, the defrosting criteria are not met and defrosting will not start. When the defrosting cycle is finished, the symbol will disappear from the information window. Danfoss Heating Solutions VUGFC20202... -
Page 16: Default Settings
Measured value From -30 °C to +99 °C Exhaust gas temperature of compressor (T4) Measured value From -30 °C to +99 °C Shows the number of the operation steps of expansion valve Measured value 100—470 steps * Should not be modified. VUGFC20202 Danfoss Heating Solutions... -
Page 17: Regular Checks
If unsure, contact your installer. The closed expansion tank contains an air filled bladder that absorbs variations in the heating system’s vol- ume. Under no circumstances may it be drained of air. Danfoss Heating Solutions VUGFC20202... -
Page 18: Checking Safety Valves
9. Screw the cover back into place. 2. Cover 10. Turn the shut-off tap to the open position. 3. Strainer 11. For the heat circuit strainer - reinstall the insulation around the filler valve. 4. O-ring 12. Start the heat pump. VUGFC20202 Danfoss Heating Solutions... -
Page 19: References
□ Manual test different operating conditions □ Noise check □ Function test safety valve □ Function test mixer valve □ Trimming the heating system Customer information □ Contents of this manual □ Safety precautions □ Control computer, function Danfoss Heating Solutions VUGFC20202... - Page 20 User Guide DHP-AT □ Settings and adjustments □ Regular checks □ Reference to service requirement □ Warranties and insurances VUGFC20202 Danfoss Heating Solutions...
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Page 21: Installation Protocol
General Heat pump model Serial number Type of collector Volume of brine (litres) Pipe installation Company Contact person Telephone number Electrical installation Company Contact person Telephone number Commissioning Company Contact person Telephone number Date final inspection Danfoss Heating Solutions VUGFC20202... -
Page 22: Service Sheet
Service technician's signature* Date (year-month-day)* Customer's signature* Comments* Service company* Service technician's signature* Date (year-month-day)* Customer's signature* Comments* Service company* Service technician's signature* Date (year-month-day)* Customer's signature* Comments* Service company* Service technician's signature* Date (year-month-day)* Customer's signature* Comments* VUGFC20202 Danfoss Heating Solutions... - Page 23 User Guide DHP-AT Danfoss Heating Solutions VUGFC20202...
- Page 24 Internet: www.heating.danfoss.com Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies.