System Maintenance - Nibe Drazice Aqua HP 250 Operating And Installation Manual

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Problem
Too much usage of the
electric heater as a
backup (auto mode)
Low hot water flow
rate
Water discharge on the
safety group
Power consumption is
abnormally high and
constant
Electrical heater not
working
Bad odor
Undraining condensation
Too quick consumption of
the Mg anode

SYSTEM MAINTENANCE

Before undertaking any maintenance operation on the equipment, make sure it is not plugged
to the power supply!
Wait until the fan comes to a complete stop.
DANGER
Possible Causes
Low external temperature
Low water temperature
Low voltage installation
Heat pump Error
Evaporator blocked
Fan blocked
Hydraulic circuit blocked
Absence or incorrect sizing of
expansion vessel (if leak is not
continuous)
High mains pressure (if leak is
continuous)
Leak or obstruction in refrigerant
circuit
Dire environmental conditions
Safety thermostat ON
Defective electric heater
Absence of siphon or siphon
without water
Drainage circuit blocked
Drain pipe blocked
Over time, the magnesium anode will be consumed. This consumption is normal,
resulting of scarification to prevent corrosion of the tank. The consumption rate
differs depending on the quality of your water. Is recommended to check the status
of your anode at least every year.
How to Proceed
The running of the equipment depends on
weather conditions
The running of the equipment depends on the
inlet water temperature
Make sure the installation is supplied with the
indicated value for voltage
Check the error display in the electronic board
Clean the evaporator
Check the status of the fan (dust, wire...)
Check the condition of the hydraulic circuit
Installation and/or correct dimensioning of
expansion vessel
Check the reducing pressure valve (if installed)
Install a reducing pressure valve (if not
installed)
Check that the piping is not damaged
Check the condition of the thermostat
Check the electric heater
Install and make sure the siphon has water
Clean the condensation circuit
Check the draing pipe
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