Danfoss DHP-AT Installation Manual Download Page 43 | Manualshive

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Installation Guide

DHP-AT

Danfoss Heating Solutions

VMGFI302

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Summary of Contents for DHP-AT

Page 1: ...MAKING MODERN LIVING POSSIBLE Installation Guide DHP AT Installation and service manual www heating danfoss com...

Page 2: ...anty if these instructions are not adhered to during installation or service The English language is used for the original instructions Other languages are a translation of the original instructions D...

Page 3: ...s 21 6 4 Noise and vibrations 21 7 Electrical installation 23 7 1 Connecting the operator panel 23 7 2 Connecting circulation pump 24 7 3 Connecting hot water tank electrical heater 24 7 4 Connecting...

Page 4: ...s need to be taken to prevent personal injury or property damage The symbols are displayed to the left of the text and three different symbols are used to indicate the degree of danger Danger Indicate...

Page 5: ...ine The return line in the heating system with flow direction from radiators under floor heating or domestic hot water tank back to the heat pump Circulation pump Circulation pump for the heating syst...

Page 6: ...xicity of the refrigerant is low it can cause personal injury or be highly dangerous under abnormal circumstances or if the refrigerant is deliberately misused Warning Risk of personal injury The refr...

Page 7: ...ti pole circuit breaker with a minimum contact gap of 3 mm 2 4 Water quality Caution A normal heating system always contains a certain amount of corrosion particulate rust and sludge products from cal...

Page 8: ...owing Caution The heat pump must be installed outdoors and secured on a stable base for example a cast foundation All four mounting points must be secured to the base Caution Incorrect positioning of...

Page 9: ...st not be built in into any cabinet or similar N Keep the heat pump and its immediate area free of snow ice leaves etc 500 mm 300 mm 500 mm 500 mm 1000 mm Fig 2 Installation space N Remember that the...

Page 10: ...below 1 2 3 Fig 3 Dimensions Pos Description 6kW 8kW 1 Height 660 mm 760 mm 2 Length 1028 mm 1028 mm 3 Width 460 mm 460 mm 1 2 Fig 4 Piping connections rear side Pos Description 6kW 8kW 1 Supply line...

Page 11: ...ns 11 Top cover 13 Rear mesh 14 Rear panel 15 Right side panel 17 4 way valve 18 Receiver refrigerant storage tank 19 Expansion valve 20 Water flow switch 22 Internal electrical heater 23 High low pre...

Page 12: ...Operating heat pump in AUTO mode House heating In AUTO mode the water temperature is adjusted by the control system according to the selected heat curve the desired room temper ature and the outside...

Page 13: ...lowing conditions Non heating operation for example cooling Compressor stopped for more than 30 minutes The air temperature is above 4 C Cooling The heat pump can be set to cooling within an outside a...

Page 14: ...r temperature below 15 C is required and the compressor must run for at least 10 minutes N If the defrost symbol disappears almost immediately the defrosting criteria are not met and defrosting will n...

Page 15: ...a risk of freezing due to low temperatures the unit will start the water pump to create a water flow in the system Step 2 To automatically start the heating operation Freeze protection step 1 When the...

Page 16: ...spective safety functions 1 3 6 5 7 8 4 9 2 10 12 11 Fig 6 Check and safety functions Position Name 1 Heat transfer fluid circuit 2 Flow switch 3 Safety valve heat transfer fluid circuit externally mo...

Page 17: ...r at too high pressurised gas temperature This is indicated by an error code in the control panel display The stop is ceased when the temperature becomes normal Fan 9 The fan motor is equipped with an...

Page 18: ...supply line temperature C 2 Supply line water temperature C 3 Working range in AUTO mode 4 Outdoor Air temperature C N The outside air temperature reference point for the heat curves is 6 C When the...

Page 19: ...ply line 2b Flexible hose return line 3 Control unit 4 Circulation pump 5 Safety valve 6 Expansion vessel 7 Strainer 8 3 way switching valve for hot water 9 Cold water 10 Hot water 11 Temperature and...

Page 20: ...there are no stresses in the connecting pipes Caution It is important that the excessive air is bled from the heating system after installation Bleed valves must be installed where necessary Caution...

Page 21: ...mponents Vibration dampers are available to purchase as accessories The connection of the heat transfer fluid to the heat pump must be made using a flexible hose to prevent transmission of vibration t...

Page 22: ...id excess bowing out or stretching and offset the ends so that the hose is installed completely straight Use fixed pipe bends to avoid excess stress on bends next to connections Installation Guide DHP...

Page 23: ...to the heat pump Operator panel control unit Circulation pump Power supply Buffer tank sensor Hot water tank sensor N Buffer tank sensor and hot water tank sensor must be installed even if only heati...

Page 24: ...illustration with an exploded view of the heat pump Also see the diagram inside the connection box 7 3 Connecting hot water tank electrical heater 14 13 L N 1 2 3 4 5 6 7 Connect the signal cable and...

Page 25: ...ecting buffer tank sensor Connect the buffer tank sensor cable 13 to the heat pump to the connector marked Buffer tank sensor If a buffer tank is used attach the sensor in the applicable pocket in the...

Page 26: ...and regulations regarding the specification of the power cable L N 1 0 Fig 9 Connect the power cable between the safety circuit breaker and the heat pump 1 1 2 L N 1 2 3 4 L N Fig 10 Connection altern...

Page 27: ...meter value settings When the heat pump is turned on the display shows the operational mode and the water temperatures The default setting is house heating DHW AUTO mode For more in formation about th...

Page 28: ...leeding excessive air 1 Fill the water heater hot water tank with cold water by opening the filler valve that is on the valve pipe 2 Bleed all excessive air by opening one of the hot water taps 3 Fill...

Page 29: ...1 Turned on 0 Turned off 14 Automatic legionella protection function 1 1 Activated 0 Deactivated 15 Internal electrical heater start option 0 0 Auto 1 Air temperature condition set in menu 16 2 Water...

Page 30: ...r periods of downtime and risk of freezing in the system the heat pump must be drained of water Adaptation of the heating system The delta temperature the difference between the supply line and return...

Page 31: ...emperatures during tuning but these are adjusted later 7 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...

Page 32: ...d return water 13 C 06 Internal electrical heater overheat protection 85 C 07 Condenser overheat protection 08 Hot water tank sensor T3 failure 09 Buffer tank sensor T2 failure 10 High pressure protec...

Page 33: ...diagram below T7 T9 T8 T2 T3 T6 T1 T4 T5 Fig 12 Sensor locations T1 Air temperature T2 Buffer tank T3 Hot water tank T4 Exhaust gas temperature T5 Return gas temperature T6 Cooling coil external senso...

Page 34: ...put3 kW 1 4 2 0 Operating current3 A 6 4 9 1 COP4 4 3 4 3 Heating capacity4 kW 6 0 8 5 Power input4 kW 1 4 2 0 Operating current4 A 6 3 8 8 EER5 2 7 2 6 Cooling capacity5 kW 4 4 6 2 Power input5 kW 1...

Page 35: ...in accordance with EN14511 including fan defrost and correction for external circulation pump 4 At operating point A7 W35 10K hot side in accordance with EN255 5 At operating point A35 W7 according to...

Page 36: ...0 28 20 8 50 43 20 0 15 25 0 1 2 3 4 5 8 1 Supply line water temperature C 2 Air temperature C 3 Hot water production only 4 Heating 5 Cooling Installation Guide DHP AT VMGFI302 Danfoss Heating Soluti...

Page 37: ...12 Circuit diagram Installation Guide DHP AT Danfoss Heating Solutions VMGFI302 37...

Page 38: ...Installation Guide DHP AT VMGFI302 Danfoss Heating Solutions 38...

Page 39: ...Installation Guide DHP AT Danfoss Heating Solutions VMGFI302 39...

Page 40: ...13 Connection diagram Installation Guide DHP AT VMGFI302 Danfoss Heating Solutions 40...

Page 41: ...Installation Guide DHP AT Danfoss Heating Solutions VMGFI302 41...

Page 42: ...Installation Guide DHP AT VMGFI302 Danfoss Heating Solutions 42...

Page 43: ...Installation Guide DHP AT Danfoss Heating Solutions VMGFI302 43...

Page 44: ...erves 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 specific...

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