Ariston 240, User Manual

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Heat pump water heater - OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER
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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.
In all cases, the company performing the work must carry out checks to verify the safety and correct
operation of 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! 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.
The mixing valve is compulsory on SYS models.
WARNING! (SYS version only) Make sure the temperature detected by the control unit probes S2 and S3 does not
exceed 75°C Fig. 15.