Ferroli OMNIA HYBRID C, Installation, Maintenance And User Manual

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81
EN
Cod. 3541T090 - Rev. 00 - 06/2019
COMMISSIONING
12. COMMISSIONING
12.1 Heat pump commissioning
Before starting for the first time, after a long pause it is necessary to carry out the following preliminary checks concerning the electrical part and the refrigerating part..
Preliminary heat pump checks
Refrigerating part
• Check that the unit is charged with refrigerant. The control can be carried out with portable freon pressure gauges fitted with a 1/4 “SAE revolving coupling with a
depressor connected to the tap service outlet. The pressure read must correspond to the saturation pressure corresponding to the ambient temperature (~ 7 bar) .
• Perform a visual check on the refrigeration circuit making sure it is not damaged.
• Check that the pipes are not dirty with oil (oil stains allow the refrigeration circuit to break).
WARNING
Disconnect the power supply before carrying out any operation on the electrical panel of the unit.
After installing the indoor and outdoor units, check the following before powering them up:
• Wiring. Make sure that the electrical connections of the various parts of the system such as boiler, temperature probes, 2 and 3-way valves, pumps have been
carried out in accordance with the instructions in this manual, the wiring diagram supplied with the unit and in compliance with the laws and local regulations.
• Fuses, switches, or protection devices. Check that the fuses or protection devices installed locally are adequately sized based on the maximum current absorbed
by the unit as reported in this manual. Check that these protection devices are not bypassed.
• Grounding. Make sure that the earth wires have been connected correctly and that the earth terminals are tightened.
• Visually check the electrical panel to check for loose connections or damaged electrical components.
• Mounting. Check that the unit is mounted correctly to avoid abnormal noise and vibration when starting up the unit.
• Damaged components. Check the inside of the unit to check for damaged components or crushed pipes.
• Refrigerant leakage. Check the inside of the unit to check for refrigerant leaks. If there is a loss of refrigerant, contact the technical assistance service.
• Supply voltage. Check that the supply voltage to the unit corresponds to the power supply voltage indicated on the nameplate of the unit.
• Make sure the water shut-off valves are completely open
12.2 Boiler commissioning
Preliminary boiler checks
• Check the tightness of the gas system.
• Check correct prefilling of the expansion vessel.
• Fill the hydraulic system and make sure that all air contained in the boiler and the system has been vented.
• Make sure there are no water leaks in the system, DHW circuits, connections or boiler.
• Make sure there are no flammable liquids or materials near the boiler.
• Check correct connection of the electrical system and efficiency of the grounding system.
• Make sure the gas valve is adjusted for the gas to be used (see “Table. 7 - THROTTLE position and parameter setting” and fig. 165).
• Fill the trap (see “6.15 Condensate drain connection boiler” on page 28).
IF THE ABOVE INSTRUCTIONS ARE NOT OBSERVED THERE MAY BE RISK OF SUFFOCATION OR POISO-
NING DUE TO GAS OR FUMES ESCAPING; DANGER OF FIRE OR EXPLOSION. ALSO, THERE MAY BE A RISK OF
ELECTRIC SHOCK OR FLOODING THE ROOM.