Gruppo Imar IVY 24 MR/MN, Installation & Use Manual, Page: 12 / 44

10
FAULTS
OPERATION WITH OPENTHERM TIMER THERMOSTAT
All functions supported by the boiler are
managed by a microprocessor-based system
which, aside from allowing the system to run
perfectly in order to maintain the greatest
level of comfort possible, constantly monitors
the functional parameters, ensuring they
fall within the necessary safety interval by a
wide margin, and therefore that all devices
present are functioning perfectly.
Whenever the malfunction of any component
or conditions which could compromise safe
operation of the system are detected, the
microprocessor system places the device
into a limited operation mode or even
completely prevents it from operating. The
microprocessor system is able to detect and
issue warnings for the main fault conditions
to allow the system to be brought back to
normal conditions as soon as possible. Fault
warnings are given on the LCD display. The
malfunction is detected and an intermittent
warning displayed immediately, consisting
of a number preceded by the error symbol E
(Pict. 10). Faults are displayed on any screen
of the main menu.
Conditions causing transitory faults are
possible. Many of these are recognized
and cause a temporary block which is
automatically reset once the condition
causing the fault has stopped. Some of these
provide for the possibility to attempt to restore
operation manually.
Manual error reset, recovery attempt
To manually reset the system following a
fault condition, press BUTTON 3: the symbol
RST (reset) will be displayed on the LCD
display. Then press BUTTON 3 again (Pict. 11).
The microprocessor will attempt to recover
the system by resetting all the conditions
presumed to have caused the fault. If the
operation is successful the boiler will return
to normal operation; if not, the error code
causing the malfunction will be displayed.
Pic. 11
Pic. 10
IF A FAULT IS NOT SOLVED AFTER 2 MANUAL RESET ATTEMPTS THEN THE AUTHORISED
TECHNICAL ASSISTANCE CENTRE MUST BE CALLED.
For optimum and even more economical
management of the domestic premises it is
possible to use the EASY CONTROL
programmable timer thermostat. EASY
CONTROL allows all main boiler functions to
be managed remotely,
allowing it to be fully managed from a different room to that where the boiler is
installed.
EASY CONTROL can also be used to schedule
daily and weekly room temperatures and
manage reduced demand periods (holidays,
anti-frost and maintenance modes).