Unical PANEL BOARD DUAL-STAGE CASCADE, Руководство по эксплуатации

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System manager operating instructions
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Boiler n°2 primary ring system pump switch
This switch connects and disconnects power to the +
system pump of the primary ring of boiler n°2:
- With the switch at
0
, the pump is not powered
electrically.
- With the switch at
II
, the system pump is powered
electrically and is ready to run.
IMPORTANT:
the system pump must
always
be ready
to run before switching the burner on to allow heat to be
dispersed.
Otherwise, the safety thermostat in the boiler will trigger
when the maximum temperature is reached with the
consequent need to be rearmed.
Heating temperature control
Temperature is adjusted between a minimum of 0°C and
a maximum of 90°C.
For the heating controller to work properly, the knob of
the working thermostat MUST be at the MAX full-scale
(to the “right”).
As far as the working temperature setting is concerned,
see the paragraph “PROGRAMMING THE HEATING
CONTROLLER”.
The value set will appear on the heating controller display.
The temperature will also be visible on the thermometer
indicated at the side, as long as the bulb has been
positioned correctly in the sump on the upper part of the
body of boiler n°2.
N.B. There could be a difference of a few degrees between
the temperature displayed on the analogue thermometer
and the heating control digital display.
Resetting safety thermostat
IMPORTANT: The safety thermostat is located below
the cap indicated in the figure to the side. To access it
when the boiler blocks, unscrew the plastic cap with
a screwdriver; after having reset the boiler, put the
plastic cap back on.
The safety thermostat can be triggered when the boiler
overheats.
This can be solved first of all by lowering the working
temperature of the boiler.
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