Operating And Maintenance Instructions For The User; Warnings; Initial Start-Up; Recommendations - Ariston NUOS 200 EXT Instructions D'utilisation

Heat pump water heater – OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER

OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER

6. WARNINGS

6.1 Initial start-up

WARNING! The installation and initial start-up of the appliance must be performed by qualified personnel in
compliance with the national regulations in force regarding installation, and in conformity with any
regulations issued by local authorities and public health bodies.
If the water heater to be installed not only replaces an existing appliance, but is part of a broader renovation
project of the existing hydraulic system or part of a new hydraulic system, the company installing the water
heater must issue the customer a declaration of conformity to the laws and regulations in force, once
installation is completed. In both cases, the company installing the water heater must carry out the safety and
operational checks on the entire system.
Before starting up the water heater, verify whether the installer has completed all the relative installation operations.
Make sure to have clearly understood the installer's indications on how to operate the water heater and perform the
main operations on the appliance.
The heat pump requires 5 minutes to become fully operational when starting it for the first time.

6.2 Recommendations

In the event of a malfunction and/or faulty operation, turn the appliance off and do not attempt any repairs, but contact
qualified personnel. Only original spare parts must be used and any repairs must be carried out exclusively by
qualified personnel. Failure to comply with the above-mentioned recommendations may jeopardise the appliance's
safety and void the manufacturer's liability. In the event of prolonged inactivity of the water heater, it is advisable to
carry out the following:
- Disconnect the appliance from the power supply or, if a switch is mounted upstream from the appliance, turn the
switch itself to the "OFF" position.
- Close all taps of the domestic water supply system.
WARNING! It is advisable to drain the appliance whenever it is left inactive in a room subject to frost. This
operation must be carried out by qualified personnel only.
WARNING! Hot water at temperatures above 50°C running from taps may immediately cause serious burns.
Children, the disabled and the elderly run a greater risk in this regard. Therefore, it is advisable to use a
thermostatic mixing valve connected to the appliance's water outlet pipe, which is identified by a red collar.
For SOL models the mixing valve becomes mandatory.
WARNING! (SOL version only) Make sure the temperature detected by the solar control unit probe TS.2 does
not exceed 80°C Fig. 15

6.3 Safety regulations

Refer to paragraph 1.1 for the description of the symbols used in the table below.
Ref. Warning
Do not perform operations that involve
1
removing the appliance from its housing.
Do not leave objects lying on the
2
appliance.
Type of risk
Electrocution due to exposure to live components.
Flooding caused by water leaking from disconnected
piping.
Personal injury caused by the object falling off the
appliance as a result of vibrations.
Damage to the appliance or any underlying items
caused by the object falling off as a result of vibrations.
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Symbol