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16. ADJUSTMENT AND SAFETY DEVICES
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Limit thermostat
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circuit overheats.
It is forbidden to disable this safety device
•
NTC fumes sensor
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heating.
It is forbidden to disable this safety device
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Flame ionisation detector
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these conditions, the boiler blocks.
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Hydraulic pressure switch
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Pump post-circulation
The electronically-controlled pump post-circulation function lasts 3 minutes and is enabled, in the heating mode, if the ambient
thermostat causes the main burner to go out.
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Antifreeze device
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Anti-block pump function
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operate for 10 seconds.
•
Three-way valve anti-blockage function
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Hydraulic safety valve (heating circuit)
This device is set to 3 bar and is used for the heating circuit. Connect the safety valve to a drain trap. Do not use it to drain the
heating circuit.
•
Heating pump pre-circulation
In case of a heat demand in the heating mode, the appliance can pre-circulate the pump before the burner is ignited. This pre-
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17. PUMP CAPACITY/ HEAD
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KEY TO PUMP CHARTS -
“SECTION” E
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RATE OF FLOW
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HEAD
18. POSITIONING THE ELECTRODES
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"SECTION" F
at the end of this manual.
Содержание COMPACT E
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