8
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Service and maintenance
Daikin EKHWP/EKHWC/EKHWD
Daikin High-efficiency hot water storage tank
008.1618744 – 03/2017
Installation and operating instructions
25
8
Service and maintenance
The Daikin EKHWP / EKHWC / EKHWD is practically mainte-
nance free as a result of its design. No corrosion protection
equipment is required (such as sacrificial anodes). This means
there is no need for maintenance work such as changing the pro-
tective anodes or cleaning the inside of the storage tank.
Regular inspection of the hot water storage tank guarantees a
long working life and fault-free operation.
8.1
Periodic Checks
The filling water can evaporate slightly over a period of time as a
result of the design. This process does not represent a technical
fault, but is rather a physical property which requires periodic
checking and correction of the water level, if necessary, by the
operator.
●
Visual check of the water storage tank level (filling level
indicator)
Top up water if required (see chapter 4 "Set-up and instal-
lation", chap. 4.3.2) and also determine and remedy the
cause for the low water level.
8.2
Annual inspection
●
Carry out a functional inspection of the electric immersion
heater or booster heater by checking the temperature display
and the switching states in the individual modes:
– Electric immersion heater: see the associated installation
and operating instructions.
– Booster Heater: see chapter "Operation" in the associated
installation and operating instructions.
●
If a solar system is connected and is in operation, switch it off
and empty the solar panels.
●
Visual inspection of the general condition of the hot water
storage tank.
●
Visual check of the water storage tank level (filling level
indicator)
Top up water if required (see chapter 4 "Set-up and instal-
lation", chap. 4.3.2) and also determine and remedy the
cause for the low water level.
●
Check the connection of the safety overflow and drain hose
for leaks, free drainage and gradient.
If necessary, clean the safety overflow and drain hose and
relay it; replace damaged parts.
●
Visual inspection of connections and pipes. In the event of
damage, determine the cause.
Replace defective parts.
●
Check all electrical components, connections and cables.
Repair damaged parts or replace them.
●
Check the water pressure of the cold water supply (<6 bar)
If necessary, fit or adjust pressure reducer.
●
Clean the plastic storage tank
with soft cloths and a mild
cleaning agent
. Do not use cleaning agents containing
aggressive solvents, as this will damage the plastic surface.
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
inspection and maintenance work (e.g. fuse,
main switch switched off and secured against
inadvertent switching on again).
WARNING!
All work performed on live components must be
carried out in accordance with the proper proce-
dures, otherwise there may be a danger to the
life and health of individuals and the function
may be impaired.
●
Rectification of damage to live components
may only be carried out by heating engineers
authorised and recognised by the energy
supply company.
Summary of Contents for EKHWP300B
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