Danfoss DHP-A (Opti line) Installation guide

Electrical

installation instructions

Danfoss Heat Pumps

DHP-A

VWBMG402

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Electrical installation – Page 2

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Contents

DHP-A 6, 400V 3N ......................................4–7

DHP-A 8, 400V 3N ................................... 8–11

DHP-A 10, 400V 3N ..............................12–15

DHP-A 12, 400V 3N ..............................16–19

DHP-A 6 SP, 230V 1N ...........................20–23

DHP-A 8 SP, 230V 1N ...........................24–27

DHP-A 10 SP, 230V 1N .........................28–31

DHP-A 12 SP, 230V 1N .........................32–35

DHP-A Opti 6, 230V 1N .......................36–40

DHP-A Opti 8, 230V 1N .......................41–45

DHP-A Opti 10, 230V 1N ....................46–50

DHP-A Opti 12, 230V 1N ....................51–55

Electrical installation

Danfoss heat pumps are factory-wired internally. The leads that are to

be connected are the mains supply (5-wire DPH), outdoor

temperature sensor and room sensors (if any).

• All electrical wiring must be carried out by a certified electrician in

compliance with local and national codes and regulations. When in

doubt, contact the local electricity distributor.

•Themainsleadispassedthroughthetopoftheunit.

•Removethefrontpaneltogetaccesstotheterminalblocks.Connect

themainsleadtotheterminalblockaccordingtotheaccompanying

schematic diagram.

•Theconnectionoftheheatpumptothemainssupplymustbehard-

wired and a multi-pole switch (safety switch) must be installed in the

power supply line to the unit.

WARNING! To disconnect the power supply to the heat pump, the

safety switch must be switched off.

NOTE!Thecablestotheoutdoorandindoorsensorscarrylowvoltage.

Interference from surrounding cables may affect these and cause incor-

rect information to be sent to the control unit. It is therefore vitally

important thatcarefulconsiderationbe giventopositioning ofcables.

Low-voltage cables must be kept well separated from high-voltage

cables.It isimportant thatlow-voltage cables arerun paralleltohigh-

voltagecables andseparatedbya distanceof atleast 25 cmfor cable

lengths up to 100 m. For longer cable lengths, the distance between

cables should be increased.

Important information

Before switching on the power supply to the heat pump, you must

ensure that the heating system, chilled water line and hot water heater

arefilledandvented.Otherwise,thecirculationpumpscanbeseverely

damaged.

DHP-A

Electrical installation – Page 3

VWBMG402

Connect outdoor unit

⚠

NOTE!Thepowercablemayonlybeconnectedtotheterminalblockintendedforthispur-

pose.Nootherterminalblocksmaybeused!

For correct connection between the heat pump and the outdoor unit, 8 connections must be

made.

Connecting the outdoor unit.

1. Routethepowercablethroughtheopeninginthetoppaneloftheheatpumptotheterminal

blocks.

2. Connectthepowercabletotheterminalblock.

Ground

0V

Phase high speed

Phase low speed

Motor protection fan

Defrost sensor

230V

Heating, drip tray

Heating cable

Outdoor unit

Heat pump

Accessories

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DHP-A

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DHP-A

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DHP-A SP

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VWBM402

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Danfoss DHP-A (Opti line) Installation guide

Danfoss DHP-A (Opti line) Installation guide

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