After, motors will start up again.
2.
After 24 h from the last By-Pass valve opening Appliance forces a By-pass activating to check the effective
position of the valve:
• if the valve is opened, force the opening;
• if the valve is closed, force the closing.
This is a normal system procedure and should not be perceived as a malfunction.
NOTES
• Every time, during By-Pass opening and closing (max 180 sec), Appliance automatically reduces fan-
ventilators speeds to the 20%, in order to help the By-Pass valve movement.
• In case of Temperature sensors anomalies, By-Pass valve will stay preventively closed.
• When the function is active, the message "By-Pass" appears on the display: see "Home Page" section in the
"Operation and use " paragraph.
11.5 "Post-ventilation" Function
This kind of function is automatically activate after:
• every time Pre-Heater is turned off (if Pre-Heater installed) both motor-fans active (about 3 minutes) to avoid
overheating;
• every time you turn the Appliance off indoor air is extracted at the max speed (about 2 minutes) to avoid
condensate presence on the heat exchanger.
This is a normal system procedure and should not be perceived as a malfunction.
11.6 "Holiday" Function
Special mode of operation: manually enabled and useful if the user leaves the room for a longer period of time.
Operation includes:
• fixed "30% less than the Minimum " speed (no other speeds, no OFF equipment);
• environment sensors not enabled (remote inputs not actived);
• bypass always closed.
When the mode is active, the message "Holiday" appears on the display: see "Home Page" in the "Operation
and Use" section.
NOTE: Activating the Mode "Holiday" will be deactivate other product functionings/selections.
To re-activate other product functionings/selections, need to deactivate the Mode "Holiday" before.For more
details on how to activate / deactivate the function, see "Activating / deactivating Holiday" in the "Operation with
remote control display".
11.7 "By-Pass MAN" Function
Special mode of operation: manually enabled and useful if you want to force air replacement without heat
recovery.The operating principle is the same as: "By-Pass" function.
NOTE: If manually enabled, the "By-Pass MAN" function will remain active for 12 h. After this period, the "By-
Pass MAN" function will come back to: Not enabled.
NOTE: (In case of "By-Pass MAN" Enabled) However you can manually deactivate the function, setting "NO"
on "By-Pass MAN Menu". After Deactivating, the operating principle will be come back the same of "By-Pass"
function.
NOTE: In case of "No-Frost" function active, you can not manually activate the "By-Pass MAN" function.
When the function is active, the message "By-Pass" appears on the display: see section 12.2. For more details
on how to activate/deactivate the function, refer to paragraph 12.3.5.
11.8 "Quiet" Function
This is a particular operating mode: if the user needs to temporarily disable the appliance's Boost operation (for
example to exceed the RH relative humidity threshold set in the dedicated menu), this function is available which
can be programmed by the user . In the dedicated menu, you will have to set the daily time slot in which the
machine will be inhibited from switching to Boost mode in order to limit the noise within the pre-established time
slot. This function is very useful during the night time slot
ENGLISH
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