Filling / Topping Up; Hot Water-Heat Exchanger; Buffer Tank - Daikin EKHWP300B Installation And Operating Instructions Manual

4 x Set-up and installation

4.3 Filling / Topping Up

Any optional accessories must be fitted before filling.
The heat exchangers must be filled before the buffer
storage tank.

4.3.1 Hot water-heat exchanger

1. Open the shutoff valve for the cold water supply pipe.
2. Open the hot water tap connections so that the draw-off
volume can be set as high as possible.
3. Once water has been discharged from the tap connections,
do not interrupt the cold water flow; this will ensure that the
heat exchanger will be fully vented and that any impurities or
residue will be discharged.

4.3.2 Buffer tank

WARNING!
Live parts can cause an electric shock on
contact and cause fatal burns or injuries.
● If there is an electric immersion heater /
Booster Heater or regulation and pump
station installed in the hot water storage tank
then these components must be isolated
from the power supply before starting the
work (e.g. fuse, main switch switched off and
secured against inadvertent switching on
again).

CAUTION!
UK only!
If filling or topping up the storage tank is done by
means of the boiler filling and drain valve, a
temporary filling loop must be used with the
appropriate backflow prevention device in
accordance with clause G24.2, Guidance to the
Water Supply (Water Fittings) Regulations
1999.
Fill the solar circuit, heating system and storage tank
charging circuit in accordance with the operating
instructions for the individual components.
Installation and operating instructions
18
EKHWP / EKHWC hot water storage tank without
solar system and without KFE filling connection
(KFE BA)
● Connect the filling hose with non-return valve (1/2") to the
"DrainBack - feed" connection (fig. 4-4, item 21).
● Fill the storage tank on the Daikin EKHWP / EKHWC until
water comes out of the safety overflow (fig. 4-4, item 5).
● Disconnect the filling hose with backflush prevention (1/2")
again.
Fig. 4-4 Filling the buffer storage tank - without
without KFE filling connection
All EKHWD hot water storage tanks:
● Install a KFE filling connection (accessory KFE BA) to the
filling and draining connection on the Daikin EKHWD.
● Connect the filling hose with backflush prevention (1/2") to
the previously installed KFE filling connection.
● Fill the storage tank on the Daikin EKHWD until water
comes out of the safety overflow (fig. 4-4, item 5).
solar system and
Daikin EKHWP/EKHWC/EKHWD
Daikin High-efficiency hot water storage tank
008.1618744 – 03/2017