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Ariston NUOS 200 SPLIT Manual

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Heat pump water heater – OPERATING AND MAINTENANCE INSTRUCTIONS
48
Insufficient flow
of hot water
Leaks or obstructions by the water circuit
Verify that there are no leaks along the circuit, ch
eck
the integrity of the the deflector pipe the integrity of incoming cold
water pipe and hot water pipe
Overflowing
water by the the
safety valve
A drip of water by the device should be
considered normal during the heating
If you want to avoid the drip,
install an expansion vessel on the plant
supply.
If leakage continues during the period of no heating, check the
calibration of the device and the pressure of the water network.
Caution: Do not obstruct the hole for evacuation of the device!
Increase of the
noise of the
outdoor unit
(heat pump)
Presence of obstructive elements inside
Check the components in movement, clean the fan and the other
parts who can generate noise or vibrations
Components vibration
Check the components fixed with screws, be s
ure that the screws
are tight.
Problems of
visualization or
display off
Damage or disconnection of the wiring
connecting electronic board and interface board
Check the integrity of the connection, check the operation of
electronic boards
No power from mains in absence of batteries or
exhausted batteries.
Check if there is electric mains supply and check the conditions of
the batteries
Bad odor
coming from
the the product
Absence of a siphon or siphon empty Provide a siphon, with the proper quantity of water.
Abnormal or
excessive
consumption
than expected
Loss or partial obstruction of the gas refrigerant
circuit
Visually ve
rify that the connecting pipes and taps aren’t
damage
d
.
Start the product in heat pump mode, use a for R134a leak detector
to check for leaks
Bad environmental conditions or
improper
installation
Partially clogged evaporator
Incorrect installation
Other
Contact the technical support
8.4 Routine maintenance performed by users
It is advisable to rinse out the appliance after each routine or extraordinary maintenance intervention.
The pressure safety device must be operated regularly to verify that it is not clogged and to remove any
limescale deposits.
Check that the condensate drainage pipe is not obstructed. The batteries must be replaced every 2 years or in case of
losses. Make sure that they are correctly disposed of and exclusively replace them with 3 AA-type rechargeable
batteries (minimum 2100 mAh); observe the polarities as illustrated in the battery housing. The battery housing is
located beneath the frame, to the right of the interface – refer to the picture 1 and 2. The appliance should be
unplugged when you remove the batteries.
8.5 Water heater disposal
The appliance contains R134a-type refrigerant gas which must not be released into the atmosphere. In case
of permanent decommissioning of the water heater, ensure that disposal procedures are carried out by
qualified personnel only.
This product conforms to EU Directive 2002/96/EC.
The barred dustbin symbol appearing on the appliance’s data plate indicates that the product must be disposed of
separately from household waste once it reaches the end of its lifespan, and transferred to a waste disposal site for electric
and electronic equipment, or returned to the dealer when purchasing a new appliance of the same kind. The user is
responsible for delivering the decommissioned appliance to a suitable waste disposal site. Proper separated collection of the
decommissioned appliance and its successive eco-compatible recycling, treatment and disposal contributes to preventing negative
effects on the environment and health and favours the reuse of the materials comprising the product. For further details on the
available waste collection systems, contact your local waste disposal office, or the dealer from which the product was purchased.
This appliance includes rechargeable batteries: these must be removed before disposing of the appliance and placed in specific
disposal containers. The batteries are located in figures 1 and 2.
… 48 …


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