Operating With The Remote Control - Immergas EOLO Maior kW X Manual

Technical Documentation
Electrical circuit.
Central heating phase.
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Operating with a room thermostat.
The central heating phase is enabled when the main selector
switch (R10) is on "WINTER".
When the room thermostat contact is closed (S20), the inte-
grated board powers the boiler circulator (M1) by means of
relay K3 and, by deviating the contact of relay K1, powers the
motor (M) of the 3-way diverter valve (M30) that continues
working until limit switch "1" opens when the central heating
position is reached.
In the meantime, if the flue pressure switch (S6) contact is
idle, "NC", the adjustment circuit powers the fan (M20) by
means of relay K4.
If the contact of the system pressure switch (S5) is closed (the
pressure measured in the primary circuit is higher than the mini-
mum value), with the enable of the safety thermostat (E4) and
consequent switching over of the flue pressure switch to "NO"
(S6) and if the temperature measured by the delivery NTC pro-
be (B1) is below the temperature set on the control panel with
the central heating temperature trimmer, the integrated board
energizes the K2 request relay which closes the 2 contacts al-
lowing to start of the ignition cycle, first controlling the ignition
electrodes (E1) and then both the gas valve coils (Y1).
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Burner ignition is detected by the integrated board by way of
the ionisation electrode (E2).

Operating with the remote control.

The remote control (CAR) is enabled when the main selector
switch (R10) is on "SUMMER and CAR".
If the conditions found by the remote control (CAR) require
ignition in the central heating phase (SUM/WIN selector of the
CAR on WINTER, central heating temperature setting higher
than what the heating sensor (B1) detects, request for the hourly
programmer, room temperature setting higher than the temperature
measured), the integrated board powers the boiler circulator
(M1) by means of relay K3 and burner ignition occurs as
described above.
NOTE: Each time the control unit switches off when the set
temperature is reached, the integrated board stops burner
operation in the central heating phase for the length of time set
with the board parameters (see integrated board operation).
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Technical Documentation
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EOLO Maior kW
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