Plumbing Connections; Electrical Hook-Up; Initial Start-Up - Ariston NIMBUS HYBRID S NET R32 Quick Start Manual

CHECKLIST (3/3)

PLUMBING CONNECTIONS

Have you checked that the water circuit pressure never exceeds 5 bar, or installed a pressure reducer at the system's
intake if it does?
Have you filled the system to less than 3 bar (recommended pressure = 1.2 bar)?
Have you checked the tightness of the system?
Have you connected the circuit filling tubes and tubes running to the heating/cooling and domestic hot water sys-
tems (where present)? (direction, tightness of gaskets, no water leaks, etc.)
Is the provided expansion vessel big enough for the system? Is it pre-charged to 1 bar?
Have you connected the safety and discharge valves with the provided silicone hoses?
If you are installing the system at ground level, have you fitted the heating delivery circuit with a safety device?
Is the safety unit fitted on the calorifier?
Is there a differential by-pass valve?
Is there a utility valve on the highest point of the system?
ELECTRICAL HOOKUP
Have you checked that the electrical connections match the diagrams in the installer manual and that they are cor-
rectly made?
Do the mains power supply voltage and frequency match the ratings on the unit's nameplate?
If the system properly sized for the power draw of the installed units (see nameplate)?
Has the mains power connection been made with a fixed mount and does it include a two-pole switch?
Have you first installed the earth connection?
Have you installed the overcurrent protection, differential circuit breakers and thermal cutouts on the outputs of the
power enclosure for the internal and external units, as required by local legislation? Have you rated the differential
cutouts and safety switches properly (refer to the manual for details)?
If and only if you have answered all the above questions with "yes", can you start up the external and internal units,
and proceed with the:
INITIAL START UP
This procedure must be done by a qualified technician, in compliance with the requirements of the F-Gas regula-
tions.
Have you checked that the BUS connection between the internal and external units and the system interface is in-
stalled properly?
Have you followed the configuration procedure on the interface step by step?
Has the system reported any errors or behaved in an anomalous manner?
Have you checked that the default settings in the Technical Area match the specifications of your system? Have you
paid special attention to setting the temperature range correctly for the various zones (refer to the installer manual for
details about these settings)?
After setting all the parameters, did you purge the circuit (parameter 1.12.0)?
Have you checked that the system is operating properly? (Test its operation in heating and, as applicable, in cooling
and domestic hot water production.)
Have you checked the operation of the system's refrigerant gas section?
Have you checked that the internal and external units do not run too noisily and that the compressor is running as it
should?
Have you checked for vibration and noise coming from the structure itself (loose connections, vibration transmitted to
the ground, etc.)?
a
The external and internal units must be
installed by a qualified technician. For detailed
instructions, refer to the installation manual.
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