THERMEx IRP 100 V, User Manual

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When performing maintenance condition of aluminum anode and scale on TÈH are checked. At the
same time residue that may accumulate in the bottom of the EWH is removed. If there is scale on TEH,
then it can be removed by using scale removing means or mechanically. When removing residuals from
EWH do not apply excessive force and do not use abrasive cleaners.
Importance of the first maintenance is that by intensity of scale and residues, aluminum anode
consumption terms for next maintenance services can be decided and, consequently, service life can be
extended. In case of non-observance of the above requirements EWH service life reduces, increases
the probability of EWH breakdown and validity of guarantee expires.
To perform maintenance and replace aluminum anode follow steps:
Turn off EWH power.
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Cool hot water or discharge it through the mixer.
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Cut off supply of cold water into EWH.
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Put a rubber hose on the cold water supply inlet pipe or discharge valve and direct the second end to
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the drain.
Unscrew the relief valve or open drain valve.
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Open a hot water faucet on the mixer.
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Drain water from the EWH through cold water supply inlet pipe or discharge valve.
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Remove the protective cover, disconnect wires, unscrew and remove from the casing the removable
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flange.
Replace the aluminum anode, clean the TEH if necessary from scale and remove residue.
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To assemble, fill EWH with water and power on.
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When conducting EWH maintenance by forces of special organization the appropriate mark shall be
made in the warranty card. When replacing the aluminum anode independently by the consumer
aluminum anode purchase receipt shall be attached to present manual.
Specifying security measures
Electrical safety and corrosion protection of EWH are guaranteed only if there is an effective
earthing in accordance with applicable electric installation rules and regulations.
When installing and operating EWH the following is not allowed:
To power EWH if EWH is not filled with water.
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To remove the protective cover when the power is on.
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Use EWH without grounding or use water pipes as grounding.
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To connect EWH to water main with pressure exceeding 0.6 MPa.
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If pressure in the supply line is more than 0.6 MPa, an appropriate pressure reducing valve
shall be installed at cold water inlet ahead of safety valve (not supplied) to reduce water
pressure to normal.
To connect EWH to the water supply without safety valve.
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To drain water from EWH with power switched on.
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To use spare parts not recommended by the manufacturer.
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To use water from the EWH for cooking.
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To use water containing impurities (sand, small stones), which might lead to EWH and safety
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valve breakdown.
To modify design and installation dimensions of EWH brackets.
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Water freezing in the appliance is prohibited because it causes its malfunction which is not a warranty
case.
Attention should be paid to children so that they do not play with EWH. EWH is not intended for use by
persons (including children) with limited physical, sensory or mental capabilities, or by persons who do
not know how to use the EWH, except for cases when this happens under the supervision or instructions
EN
by persons responsible for safety of the EWH.
Possible faults and remedies
If an operational fault occurs EWH shall be disconnected from the mains, water supply shall be cut off.
Malfunction
Possible cause
How to fix
Frequent tripping of
thermal switch
Turn the thermostat control to
decrease temperature (-) The set temperature is close
to the limit
S upply voltage d ecreased Contact power main operation service
Remove the flange and clean the TEH
THE is covered with a layer
of sludge H eating time increased
Remove the valve and clean
it in water Clogged inlet safety valve Hot water pressure from
EWH decreased.
Cold water pressure
keeps at the level.
Disconnect EWH from the mains,
remove EWH protective cover,
press the safety button until you
hear a click (
fig. 2 ), place the cover
and turn on power
Thermal switch tripped or not on
Faulty thermostatic switch Apply to a Service center
Apply to a Service center
Power cord is damaged
ELCB ( if any ) tripped
Push ELCB restart button . Check
voltage .
Powered EWH does
not heat water.
No backlights of
indicator lamps
Remove the flange and gently clean
the pipe from the sludge Thermostat tube is covered with
sludge
There is no voltage in the mains
These faults are not defects of EWH and shall be fixed by the consumer or by a specialized organization
at his own expense.
In case of failure to fix problems using the above recommendations or in case of others problems
revealing you should contact the authorized service center listed in the operation manual.
Call to operations & maintenance
power service
EN
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