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Caution

All Danfoss warranties are void if filling with refrigerant not specified by Danfoss A/S, unless there is written

consent that the new refrigerant is an, by Danfoss A/S, approved replacement refrigerant.

Scrapping

Caution

When the heat pump is to be scrapped the refrigerant must be extracted for disposal. Local rules and regula-

tions related to the disposal of refrigerant must be obeyed.

2.3

Electrical connection

Danger

Hazardous electrical voltage! The terminal blocks are live and can be highly dangerous due to the risk of elec-

tric shock.

All power supplies must be disconnected before the electrical installation is started. The heat pump is connec-

ted internally at the factory, so the electrical installation consists mainly of the connection of the power sup-

ply.

Warning

Electrical installation may only be carried out by an authorised electrician. Applicable local and national regu-

lations must be obeyed.

Warning

The electrical installation must be carried out using permanently routed cables. It must be possible to discon-

nect the power supply using a multi-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 calcium oxide. This comes from acid that naturally occurs in the fresh water that the system is filled with.

Normal filling should occur only once or twice a year. Filling the system more than twice a year can indicate

leakage in the heating system and should be repaired immediately.

The water in the heating system should be as clean as possible. Position the dirt filter on the return line from

the heating system to the heat pump as close to the heat pump as possible.

Caution

Hard water; Normally it is not a problem to install a heat pump in areas with hard water because the normal

operating temperature for the hot water does not exceed 60°C.

In areas with exceptional water conditions, it can be necessary to install a softening filter. The filter softens the

water, cleans any impurities and prevents the build up of calcification.

2.5

Commissioning

Caution

The installation may only be commissioned if the heating system is filled and all excessive air is bled. Other-

wise the circulation pump may be damaged.

Installation Guide

DHP-AT

Danfoss Heating Solutions

VMGFI302

7

Содержание DHP-AT

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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

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

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

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

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

Страница 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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