Handing over the product to the user. Vaillant VWZ MWT 150

5.4.1 Hydraulic pressure loss of the heat pump circuit

REPAIR WORK

6.2 Draining the heat pump circuit

B

A

A

B

A Glycol water circuit fl ow to heat pump

A

B Glycol water circuit return from heat pump

300

250

200

150

100

50

0

1

2

500 1000 1500 2000 2500 3000

B Flow rate (l/hour)

1 50% glycol circuit fl ow rate

B

C

► Connect the drain pipe to tap (C).

► Insert the other end of the pipe into a suitable container to collect the glycol.

► Open the tap (B).

► Open the heat pump circuit air bleed valve.

► Check the water-tightness of the system.

5.5 Handing over the product to the user

After completing the installation:

► Answer any questions the user may have.

► Draw special attention to the safety instructions which the user must follow.

6.4 Checking the electrical installation

► Check the electrical installation observing all relevant regulations.

6.4.1 Checking the cables

► If the power cable of this product is damaged, then to prevent danger, only the manufacturer, the after-sales service or similarly qualifi ed persons shall replace the power cable.

► In case you need spare parts during maintenance or repair, exclusively use genuine spare parts.

The genuine component parts of the product have been certifi ed together with the product in the course of the CE conformity check. If you do NOT use certifi ed genuine spare parts during maintenance or repair, the CE conformity of the product will expire. That is why we imperatively recommend to install genuine spare parts.

7 Decommissioning

► Isolate the product from the power mains.

► Drain the appliance (see chapter 6.2).

► De-install the product.

► Recycle or dispose the product and its components (see chapter 8).

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