Draining The Hot Water Circuit; Final Shutdown - Daikin EKHHP300AA2V3 Installation And Operating Instructions Manual

6 x Decommissioning
Fig. 6-3 Screwing pre-assembles connector into the filling and drain-
ing connection

6.1.2 Draining the hot water circuit

● Close the cold water supply to the DAIKIN EKHHP.
● Separate the cold water supply pipe to the DAIKIN EKHHP
and allow the hot water distribution network to empty out.
● Isolate the cold water supply and hot water outlet from the
DAIKIN EKHHP.
● Connect the drain hoses to cold water supply and hot water
outlet so that the end of the hose is located just above ground
level.
● Allow heat exchanger to drain according to the siphon
principle.
Installation and operating instructions
20

6.2 Final shutdown

WARNING!
Cooling systems (heat pumps), climate control
systems and heating devices that are incorrectly
dismantled can both endanger the life and
health of people and exhibit impaired function
during start-up.
At normal atmospheric pressure and ambient
temperatures, liquid coolant vapourises so
suddenly that on contact with skin or eyes it
can cause the tissue to freeze (danger of going
blind).
● Work on the DAIKIN EKHHP (such as
dismantling components, temporary or final
shutdown of system) is only to be carried out
by persons who are authorised and who have
successfully completed qualifying technical
or vocational training for the specific
activity and who have taken part in advanced
training sessions recognised by the relevant
responsible authorities. These include, in
particular, certified heating engineers,
qualified electricians and HVAC
specialists, who on account of their profes-
sional training and expert knowledge,
have experience in the professional instal-
lation and maintenance of heating, cooling
and air conditioning systems and heat
pumps.
● You must observe the warning and safety
instructions in the installation manual on
working in the coolant system.
A final shutdown may be necessary if
– the system is defective and is being dismantled and disposed
of.
– components of the system are defective, are being disman-
tled and replaced.
– the system or parts of the system are being dismantled and
reassembled in another location.
The DAIKIN EKHHP is designed to be environmentally friendly
and easy to install: the jobs described above can therefore be
carried out in an efficient and environmentally-friendly manner.
When changing location or replacing parts on the coolant system
pipework:
● Pump the coolant back into the external heat pump unit (see
installation and operating guide for the particular external
heat pump unit).
When disposing of the machine or replacing parts in the coolant
system:
● Suction the coolant from the machine and recycle (see instal-
lation and operating guide for the particular external heat
pump unit).
DAIKIN EKHHP(3/5)00AA2V3
DAIKIN Hot water heat pump
008.1423444_05 – 08/2016