Daikin EKHWP500A [12/24] X set up and installation

3 x Set-up and installation

Installation instructions

EKHWP300/500A

Hot water storage tank for air-water heat pumps and solar panels

4PW55928-1

Instructions for water connection

• For domestic water pipes observe the stipulations of EN 806 and EN 1717.

• The position and dimensions of the connections can be found in Fig 3-3.

• Carefully lag the hot water pipes to prevent heat loss.

• Install the hot water storage tank near to the removal point to dispense with the need for a circulation pipe. If a circulation

pipe is essential then it must be installed in accordance with the schematic drawing in Fig 3-1 or Fig3-2.

3.3.3 Installation

1. When using non return valves (see Chapter 2.4.1 "Non return valves“), these should be fitted in the pipe connections to the

hot water storage tank.

2. Connect the drain hose to the safety overflow connection (Fig3-3 / ,connection 19).

– Use transparent drain hose (draining water must be visible).

– Connect the drain hose to an adequately dimensioned waste water installation.

– Drain should not be lockable.

3. Check the water pressure at the cold water connection (<6 bar).

Î If the pressure in the domestic water supply is greater, fit a pressure reducer and limit the water pressure to <6 bar.

4. Establish a connection to the cold water supply (Fig 3-3, connection 2).

5. Establish connections to the hot water distribution system; install scalding protection.

6. Establish connections to the indoor module of the EKHBRD* air-water heat pump:

• Check that all installation parts have been delivered.

CAUTION!

If the EKHWP300/500A hot water storage tank is connected to a heating system with steel pipes, radiators

or non-diffusion-proof floor heating pipes, slurry and swarf could enter the hot water storage tank and cause

blockages, local overheating or corrosion.

• Flush the feed pipes before filling the heat exchanger.

• Rinse out the heat distribution network (in the existing heating system).

• Fit dirt filters in the heating system.

WARNING!

There is a danger of scalding at water temperatures >60 °C. This can arise with solar energy utilisation, if

the Legionella protection is activated or if the target temperature is set to >60 °C.

• Fit scalding protection (see Chapter 2.4.2 "Scalding protection“).