Olimpia splendid OS-CEBCH36EI, Instructions For Installation, Use And Maintenance Manual, Page: 52 / 88

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• If a boiler is fitted in the system, check that check valves have been installed on the water inlets on the heat pump and on
the boiler to prevent loss of water flow in the system and excessively hot water entering the heat pump.
• The electrical connections have been made correctly.
• Voltage is between 198 and 264V for single-phase units, and 342 and 440V for three-phase units.
• The three-phase power supply for three-phase models has a maximum unbalance between phases of 3%.
• The system is correctly earthed.
• All the electrical connections have been correctly tightened.
• The water hardness adjustment has been carried out and the potentiometer is correctly positioned on the wash control card.
• Remove any objects, particularly chips, bits of wire and bolts and screws
• Check that all the cables are connected and that all electrical connections are secure
• Both the gas pipe valve and the liquid pipe valve (fig. 14 ref. E) must be open.
• Ask the client to attend the running test.
• Illustrate the contents of the instruction manual to the customer• Hand over the instruction manual and the warranty certificate
to the client.
2.10.2 Checks during and after initial start-up (fig. 9)
When the start-up has been completed check that:
• The current absorbed by the compressor is below the maximum indicated on the plate data.
• Check that during compressor operation the electrical power voltage corresponds to the nominal value +/-10%.
• Check that the three-phase power supply has a maximum unbalance between phases of 3%.
• Check that the noise level of the three-phase compressor is within the norm.
• The appliance operates within the recommended operating conditions (see fig. 9).
• All air has been completely bled from the hydraulic circuit.
• The air-water heat pump performs a stop and then restarts.
• The difference between the temperature of the water entering and leaving the air conditioning system must be between 4
and 7°C.
• If the difference between the temperature of the water entering and the water leaving is lower than 4°C, set a slower pump
speed.
If instead it is higher than 7°C, check the openings of all the valves on the system and if possible set a higher pump speed
or fit an internal storage tank between the unit and the system and add an external pump to supply the system.
After regulating the air conditioning circuit water flow rate, regulate the flow rate of the evaporator of the DHW heat pump
circuit using the flow regulator (fig.3 ref.R).
The flow regulator must be set to 5 l/min by turning the ring at the bottom of the graduated scale.