Taking Out Of Service; Temporary Shutdown; Draining The Storage Tank - Daikin Altherma ST EKHWCH300B Installation And Operating Manual

▪ Switch on the mains supply switch on the heat generator. Wait for
the start phase.
4‒1 Check list
1 Is the hot water storage tank correctly set up according to an admissible set up variant and without
visible damages?
2 Minimum distance between the hot water storage tank and other heat sources (>90°C) of 1 m?
3 Hot water storage tank fully connected, including optional accessories?
4 With a fitted electric immersion heater:
▪ Does the mains connection comply with the regulations and is the mains voltage 230 volts or
400 volts, 50 Hz?
▪ Has the residual current device been fitted in accordance with the individual country-specific
regulations?
▪ Only when not using non-flammable power supply cable: Has the electric cable not been laid directly
to the hot water storage tank?
5 The storage tank is filled with water to the overflow point?
6 On restoration: Has the heat distribution network been cleaned? Is a dirt filter installed in the heating
return flow?
7 Is the safety overflow connection connected to an open drain?
8 Heating system and hot water system filled completely?
9 Is the water pressure on the sanitary side <10 bar?
10 Is the water pressure on the heating side <3 bar?
11 Are the heat generator and heating system vented?
12 Are all hydraulic connections tight (leaks)?
13 Does the installation operate without faults?
14 In the case of new installations: Has the operating manual been handed over, and has the owner been
instructed?
Location and Date:
5

Taking out of service

INFORMATION
If installed: Switch off the power supply to the electric
immersion heater.
5.1

Temporary shutdown

CAUTION
A heating system which is shut down can freeze in the
event of frost and may suffer damage.
▪ In the event of a danger of frost, start the entire heating
system up again and activate the frost protection
function or take the appropriate frost protection
measures for the hot water storage tank (e.g. by
draining).
EKHW(D/C/P)(300/500)(P)B
Daikin Altherma ST (Hot water storage tank)
008.1633099_00 – 06/2020
Only if all points on the checklist can be answered with Yes the hot
water storage tank may be started up.
Check list for start-up
Signature of installer:
Signature of owner:
INFORMATION
If the danger of freezing will only last for a few days, the
very good heat insulation of the hot water storage tank
means that it need not be drained, as long as the storage
tank temperature is observed regularly and not permitted
to fall below +3°C. This does not, however, provide any
protection against frost for the connected heat distribution
system!
If the storage tank temperature decreases below +3°C, the
STB of the electric immersion heater automatically triggers.
This prevents consequential damage to the electric
immersion heater caused by frost when starting up again.
5.2

Draining the storage tank

DANGER: RISK OF BURNING/SCALDING
Danger of scalding caused by leakage hot water from the
storage tank.
▪ Let the hot water storage tank cool down adequately
before any installation work.
▪ Wear protective gloves.
5 Taking out of service
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Installation and operating manual
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