Immergas RAPAX 300 ERP, Предупреждения и инструкция

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5
RECOMMENDATIONS
- MAINTENANCE AND
REPAIRS
5.1 ADVICE FOR THE USER.
If there is a problem, such as lack of DHW heat-
ing or release of fumes from the vent, cut the
power supply and contact the support service.
• This appliance is not designed for use by peo-
ple (including children) of impaired physical,
sensory or mental abilities, inexperienced
or ignorant on the subject, unless they have
received prior instruction or supervision from
someone responsible for their safety, about the
use of the appliance.
• Children must be supervised to ensure they do
not play with the appliance.
• This appliance may be used by children of 8
years or over, and by people with impaired
physical, sensory or mental abilities, or those
inexperienced or ignorant on the subject if they
are properly supervised or if they have been
given instructions about the safe use of the
appliance, and made aware of the associated
risks. Children must not play with the appli-
ance. Children must not clean or maintain the
appliance without supervision.
Important note - Appliance's end-of-life:
• At the end of its life, the appliance must be
taken to a sorting centre for electrical and elec-
tronic equipment for recovery of fluids. Do not
dispose of the appliance in domestic waste, but
in the stated collection centres, where it may be
recycled. Check your local collection service to
find out about existing waste collection centres.
• It is forbidden by law to discharge into the
atmosphere the cooling fluid contained in the
appliance. Degassing operations are strictly
forbidden, and may be hazardous.
Note: the GWP (Global Warming Potential) of
R134a is 1350.
5.2 DOMESTIC MAINTENANCE.
The user needs to carry out little home mainte-
nance on the water heater: turn the knob on the
safety unit once or twice a month to remove any
scale residues and check it is not blocked.
Check regularly that there are no alarms on the
display. If there are any alarms, contact the au-
thorised local service centre to address the faults.
It is recommended to treat water with a softener
in the areas where there is a high amount of scale
(Th>20°F).
Water hardness must remain above
15°F. The softener does not involve derogations
from the warranty provided it is dosed in a
workmanlike manner and regularly maintained.
Water treatment must comply with the provisions
of UNI 8065.
5.3 MAINTENANCE BY APPROVED
PROFESSIONALS.
The appliance must be checked by a profession-
al every 2 years, in order to ensure its long-term
performance. .
• Disconnect the appliance from the electricity
(circuit-breaker, fuses, etc.)
• Drain the tank:
- close the cold water inlet cock of the safety
unit,
- open a hot water tap,
- put the safety valve in the drain position.
• Remove the front cover.
• Disconnect the wires from the thermostat
terminals.
• Dismantle the heating assembly.
• Change the magnesium anode. The magnesium
anode has to be changed every 2 years or as
soon as its diameter is less than 10mm.
• Remove the scale deposited as sludge or flakes
in the bottom of the tank, and carefully clean
the casings of the heating elements and thermo-
stat. Do not scratch or strike the scale attached
to the walls, as this could affect the coating.
Residues may be removed using a water and
dust vacuum cleaner.
• Refit the heating assembly with a new seal,
carefully and gradually tightening the nuts
(cross-tightening).
• Fill the water heater by leaving a hot water tap
open, if the water flows it indicates that the
water heater is full.
• Check the water tightness of the seal and only
then replace the thermostat and its fittings, and
reconnect the power supply.
• The next day, check the water tightness of the
seal again and gently tighten the nuts again if
necessary.
• Check the electrical connections.
• Check correct positioning of the temperature
probe in the pit located near the electrical
integration (the probe must be located at the
bottom of the pit).
Evaporator:
• The cleanliness of the evaporator and the fan
must be checked
every year
. Clogging of these
components may reduce the performance of
the heat pump.
• Unscrew and remove the front cover to access
the evaporator. The rear cover may also be
removed if necessary.
• If necessary, the evaporator and the fan are to be
cleaned with a soft bristle brush. The evaporator
must be brushed very gently in order not to
damage its fins. If the fins are folded, straighten
them using a suitable brush.
Caution:
always disconnect the appliance from
the power before starting work.
Expansion valve:
• Only a refrigeration engineer is permitted to
access the expansion valve adjustment screw.
If the expansion valve is adjusted without
approval from the manufacturer, the product
warranty shall be voided.
• Generally speaking, it is not recommended to
change the expansion valve setting before all
other repair solutions have been exhausted.
Condensate evacuation pipe:
• Check cleanliness of the condensate evacuation
pipe. Any pollution (dust) in the room may in
fact cause deposits in the condensate recovery
tank. These deposits may block the condensate
evacuation tube, and cause excessive accumu-
lation of water in the tank, which could lead to
malfunctions.
5.4 TROUBLESHOOTING SUPPORT
Control panel alarm codes
Errors may be reset by pressing the "Setting"
key (2).
This action also stops the buzzer.
Code dis-
played
Error trigger condition Cause Consequences Maintenance
Err 03
Water temperature probe
(pocket) faulty.
• Probe cut off or in
short-circuit.
• No heating.
• High pressure safety condition (Err
25).
• Check connections or replace probe
wiring.
Err 09
Water temperature too
hot (> 80°C).
• Electrical resistance con-
tinually powered up.
• Probe out of service.
• Risk of triggering mechanical safety
device.
• No heating.
• Check connections and place
probe.
• Ensure the heating unit is not con-
tinually on.
• Reset mechanical safety device if
necessary and contact your install-
er.