Daikin EHSH04P30D, Инструкция по установке и обслуживанию

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9 Taking out of operation
Installation and maintenance instructions
54
Daikin Altherma EHS(X/H)
Daikin Altherma integrated solar unit
008.1444099_00 – 07/2018 – EN
9 Taking out of operation
DANGER: RISK OF BURNING
When opening the solar return flow connection and the
heating and hot water connections, there is a
danger of
scalding and flooding from escaping hot water.
▪ Only empty the storage tank or heating system when it
has cooled down sufficiently and if it is provided with a
suitable device for safely draining off or collecting the es-
caping water.
▪ Wear suitable protective clothing.
9.1 Temporary shutdown
CAUTION
A heating system that is shut down can freeze in the event
of frost and may suffer damage.
▪ Drain the heating system that is shut down if there is
danger of frost.
▪ If the heating system is not drained, the power supply
must be ensured and the external main switch must re-
main switched on if there is a danger of frost.
If the Daikin Altherma EHS(X/H) is not required for a lengthy period,
it can be temporarily decommissioned.
However, we recommend not to disconnect the system from the
power supply but merely to switch it to "Standby mode" (see Control-
ler operating instructions).
The system is then protected from frost. The pumps and valve pro-
tection functions are active.
If it is not possible to guarantee the power supply when there is
danger of frost,
▪ completely discharge the Daikin Altherma EHS(X/H) on the water
side, or
▪ apply suitable antifreeze measures to the connected heating sys-
tem and hot water storage tank (e.g. draining).
INFORMATION
If there is a danger of frost for only a few days with uncer-
tainly in the gas and power supply, the Daikin Altherma
EHS(X/H) does not need to be drained because the heat
insulation is excellent as long as the storage tank temper-
ature is observed regularly and does not fall below + 3 °C.
However, this provides no frost protection for the connec-
ted heat distribution system.
9.1.1 Draining the storage tank
1 Switch off the main switch and secure against restarting.
2 Connect the drain hose to the combined filling and draining
filling connection ( combined filling and draining BA ac-
cessories ) ( Fig. 9-1 , item A) and to a waste water drainage
point which is at least at ground level.
INFORMATION
If no combined filling and draining filling connection is
available, the connecting piece ( Fig. 9-1 , item C) can be
detached from the safety overflow (item B) and used.
This must be re-installed after the draining process before
the heating system is put back into operation.
Fig. 9-1 Installing the drain hose; optional: Detaching the con-
necting piece from the safety overflow
Item Designation Item Designation
A Combined filling
and draining
connection
(combined filling
and draining BA
accessory) E Threaded piece
B Safety overflow F Sealing plug
C Hose connect-
ing piece for
safety overflow G Connecting
bracket
D Clamping piece X Valve insert
Tab. 9-1 Legend for Fig. 9-1 to Fig. 9-6
Without solar system:
1 Remove the cover panel on the filling and draining connection.
2 When using the combined filling and draining connection
(combined filling and draining BA accessory):
Remove the cover panel on the handle and unscrew the threaded
piece (
Fig. 9-2 , item E) from the storage tank.
Fig. 9-2 Unscrewing the threaded piece
1 Insert the combined filling and draining filling connection in the
threaded piece (
Fig. 9-3 , item E) and secure with the clamping
piece ( Fig. 9-3 , item D).
2 Place a suitable collecting tray under the filling and draining con-
nection.
3 Unscrew the threaded piece on the filling and draining connec-
tion (
Fig. 9-4 , item E), remove the sealing plug ( Fig. 9-4 , item F)
and immediately screw in the pre-installed threaded insert with
combined filling and draining filling connection into the
filling and draining connection ( Fig. 9-4 ) again.
CAUTION
After removing the sealing plug, storage tank water surges
out.
There is no valve or check valve on the filling and draining
connection.