Lamborghini Caloreclima 310 PM/M Notice D'installation Et D'entretien page 43

CONTINUOUS MODULATION OPERATION
100%
Ignition
min.30%
0
a
This is the operation obtained by sending an appropriate signal to the air valve servo control so the power
supplied by the burner can be of any intermediate value between a preset minimum and maximum.
Continuous modulation is required when boiler water temperature or steam pressure variations must be kept
within restricted limits.
From the diagram, it will be seen that the stop,preventilation, flame formation or switchover to maximum output
phases are the same as those described in the previous paragraph.
Actual flame modulation is obtained by fitting the following devices to the system. These are supplied with
an optional kit:
- LANDIS boiler probe, for temperature or pressure.
- LANDIS RWF 40 regulator with case for fitting to panel.
- Range adapter for regulator, controlled by the boiler probe and with calibration suitable for the
scale of the probe itself.
AIR
GAS
b c d
Modular operation
time
1 sec. max
a
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