7219836.01 (1-04/15)
52
INST
ALLER Section (en)
18. ADJUSTMENT AND SAFETY DEVICES
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Safety thermostat
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It is forbidden to disable this safety device
NTC fumes probe
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heating.
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It is forbidden to disable this safety device
Flame ionisation detector
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these conditions, the boiler blocks.
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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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operate for 10 seconds.
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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.
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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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19. PUMP CAPACITY/ HEAD
A high-head
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pump is used (the chart in annex
"SECTION" E
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KEY TO PUMP CHARTS -
"SECTION" E
Q
RATE OF FLOW
H
HEAD
MIN
Minimum speed of modulation
MAX
Maximum speed of modulation