Olimpia splendid Unico Boiler Instructions Pour L'installation, L'emploi Et L'entretien page 46

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4 Switch on the pump and open the taps of the pressure gauge.
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6 Continue to maintain the vacuum for at least 1 hour.
7 Close the taps on the pressure gauge and switch off the pump.
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from point 3.
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A Valve stem
B Valve stem cap
C Filler hole
D Main valve
A Pressure gauge
B Vacuum gauge (if necessary)
C Vacuum pump
D Hose tap (open)
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F Gas pipe
G Liquid pipe
H UNICO BOILER MASTER
2.2.9
STANDARD UNI EN 1487:2002 or to the equivalent standards in force.
THE WATER SAFETY UNIT must comprise at least:
• a stop cock
• a non-return valve
• non-return valve control device
• a safety valve
• a water pressure cut-off device
The above accessories are necessary for the boiler to operate safely.
The maximum working pressure must be 0.3 MPa (3 bar)
For this reason the valve drain MUST BE CONNECTED to one of the house drain pipes (see instruction booklet under 'Installation procedure
– Water connection')
that cannot withstand such high temperatures.
event of the drain tap being opened.
It is normal for the safety valve to drip during the water heating phase; it is therefore always advisable to connect the drain open to the
The unit can perform a brief diagnosis cycle to check the normal working operation of the internal components.
To activate the function proceed as follows:
- supply the unit with power by plugging it into the wall socket or operating the system isolation switch;
- make sure the appliance is in standby mode (LCD display on the console Off);
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