Danfoss DHP-R
7Ua User Manual

USER MANUAL

Danfoss Heat Pump

DHP-R&DP

VUIFK102

Table of contents

1 Important information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 Safety precautions ......................................................................4

1.2 Protection ..............................................................................4

2 About your heat pump ...........................................................5

2.1 Product description .....................................................................5

2.2 The principles of the heat pump .........................................................5

2.3 Water heater ............................................................................6

2.4 System overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 Room sensor (option) ...................................................................6

2.6 Piping installation ......................................................................6

3 Operating instructions ...........................................................7

3.1 Checking the coolant circuit pressure ....................................................7

3.2 Checking the water level in the heating system ..........................................7

3.3 Checking safety valves ..................................................................7

3.4 In the event of leakage ..................................................................7

4 Troubleshooting .................................................................8

4.1 Alarm ...................................................................................8

5 Terms and abbreviations .........................................................9

6 References .....................................................................10

VUIFK102

3

4 VUIFK102

1 Important information

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental

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capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concer­ning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.

• If the installation is not used during the winter, the heating system must be drained of water, otherwise there is a

risk of frost damage to the installation. Contact an authorized installer, see the “References” section for further infor­mation.

• The system can be considered maintenance free but certain checks are necessary.

• Before changing the control computer’s settings, first find out what these changes mean. See separate manual for

the control system.

• Contact your installer for any service work.

1.1 Safety precautions

Installation and maintenance

• Only authorized installers may install, operate and carry out maintenance and repair work on the heat pump. See

the “References” section for more information.

• Only authorized electricians may modify the electrical installation. See the “References” section for more informa­tion.

DANGER TO LIFE!

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• Only authorized refrigeration technicians may work on the refrigerant circuit. See the “References” section for more

information.

System modifications

Only authorized installers may carry out modifications on the following components:

• The heat pump unit

• The pipes for the refrigerant, brine, water and power

• The safety valve

You must not carry out construction installations that may affect the operational safety of the heat pump.

Safety valve

The following safety precautions apply to the hot water circuit’s safety valve with corresponding overflow pipe:

• Never block the connection to the safety valve’s overflow pipe.

• 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.

1.2 Protection

Corrosion Protection

Due to the risk of corrosion, avoid using different types of sprays in the vicinity of the heat pump. This particularly app-

lies to:

• Solvents

• Chlorinated cleaning agents

• Paints

• Adhesives