joule InvaVent 350, Instruction Booklet

Page: 9 / 36

9
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 120 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" in the "Operation" and
use ".
“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 3
minutes) to avoid condensate presence on the heat
exchanger.
This is a normal system procedure and should not be perceived as a malfunction.
“Program” Function (only NOT UK Markets)
Special mode of operation: manually enabled and allows the user to program weekly air speeds. In fact, it allows you to
assign up to 6 time bands with different speeds, including stopping the equipment. At unspecified intervals the equipment
will operate at the speed set off the Program. When the function is active, the message "Progr." Appears on the display:
see "Home Page" in the "Operation and Use" section. However, the speeds can be manually changed even at specified
intervals: in this case the message “Man.” appears on the display.
For more details on setting the time slots and dates, see "PRG Crono" in the "Operation and Use" section. For details
on how to activate / deactivate the function, see "Activating / deactivating Program" in the "Operation and Use" section
.
"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 "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 and
Use".
“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" flashing appears on the display: see "Home Page" in the "Operation"
and use ". For details on how to activate/deactivate the function, see "Activating/deactivating By-Pass MAN" in the
paragraph "Operation and Use".
ENGLISH