Daikin EKHWP300B [13/28] Installation
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Daikin EKHWP300B [13/28] Installation

Daikin EKHWP300B [13/28] Installation
Fig. 3-2 Erecting the hot water storage tank (shown on the EKHWP)
3 x Set-up and installation
Daikin EKHWP300+500
Daikin High-performance hot water storage tank
008.1618744 – 08/2015
Installation and maintenance manual
13
3.2 Installation
3.2.1 Important information
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 sca
lding protection (see chapter 2.4.4
"Scalding protection").
CAUTION!
If the hot water storage tank is connected to a heating
system with steel pipes, radiators or non-diffusion-
proof underfloor heating pipes, sludge and swarf could
enter the hot water storage tank and cause
blockages, local overheating or corrosion.
● F
lush the feed pipes before filling the heat
exchanger.
● Rinse
out the heat distribution network (in the
existing heating system).
● Fit a dirt
filter or sludge catcher in the heating
return pipe (see chapter 2.4.3).
● For domestic water pipes observe the stipulations of
EN 806 and EN 1717.
● The
position and dimensions of the connections can be taken
from fig. 2-1.
● Check th
e cold water connection pressure (maximum 6 bar).
– At higher pressure in the drinking water line, a pressure
reducer must be installed.
● Conn
ect the pressure relief line to the safety pressure relief
valve (customer supply) and connect the diaphragm
expansion tank as per EN 12828.
●
Note tightening torque (see chapter 8.3 "Tightening
torque").
● Obse
rve the requirements for the heating and filling water
(see chapter 1.5.4).
To prevent heat loss from the connection pipes when
the heating pump is switched off and during periods
when no domestic water is drawn off (gravity circula
-
tion), you should fit circulation brakes (see chapter
2.4.2) in the connections to the ROTEX Daikin hot
water storage tank.
3.2.2 Hydraulic system connection
1. Only with connection of an EKHWP hot water storage tank to
a Daikin heat pump:
● Mou
nt the Daikin heat pump compatible storage tank kit
"E-PAC" to the EKHWP hot water storage tank (see the
individual installation and operating instructions included
for the storage tank connection kit).
2. When using circu
lation brakes, fit them into the pipe
connections on the Daikin EKHWP.
3. Connect the drain hose to the connector of the safety
overflow (fig. 2-1, item 15) on the hot water storage tank.
– Use transparent drain hose (draining water must be visi-
ble).
– Connect the drain hose to an adequately dimensioned
wa
ste water installation.
– Drain should not be lockable.
Fig. 3-3 Installation of drain hose at safety overflow
4. Check the water pressure at the cold water connection
(<6 bar).
If the pressure in the domestic water supply is greater
then fit a pressure reducer and limit the water pressure to
<6 bar.
5. Create connection of the cold water inlet to the hot water
storage tank (fig. 2-1, item 25).

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