16
CV072018-1
Autominutes
ok
It is only present if the automatic speed management of the fans with CO or
CO-VOC sensor (Installer menu) is configured or there is an excess of CO2 in the
environment. The sensor works correctly.
ko
Possible anomaly in the sensor.
Antifrost
ok
It is activated if the unit fails to exit the antifreeze mode of the exchanger within
2 minutes. The unit works correctly.
ko
Two minutes have elapsed since the entry in antifreeze mode and the ejection
temperature has not risen again above 3C °. For speed management, the con-
trol stops the drive fan and adjusts the return fan to the maximum speed. For
resistance management, it stops both the impulsion fan and the resistance, the
return flow goes to the speed set in the control panel. For by-pass manage-
ment, it stops the flow fan and leaves the by-pass in the current position.
Bypass off:
The bypass will remain closed regardless of the internal and external temperatures.
Bypass on:
The bypass will remain open regardless of the internal and external temperatures.
PARAM MENU: ADJUSTMENT OF USER PARAMETERS
The parameter menu is displayed only when the control detects that the conditions exist for which the current station should be selected. It
may be due to the winter / summer settings in the installer menu (see) or the presence of a cold water coil. If it is not displayed, the control
automatically proceeds to the management based on the outside temperature and return values. Modification of the values of the available
parameters is done by selecting the desired one and pressing the OK key; at this point the current value of the parameter turns green, to go
through the different possible values, use the arrows. If a dehumidification system is installed, the relative humidity threshold value can also
be adjusted in this menu.
Bypass configured in “All Season \ All SeasonM” mode and / or management of an element enabled for air after-treatment (Factory menu). For
the regulation, threshold values of the return temperature present in the installer menu are used (see Winter / Summer temperature) which
are compared with the effective values of outdoor temperature \ ambient. If the conditions for free-heating/ cooling persist, the by-pass is
adjusted accordingly according to the following diagram:
By-pass: summer
By-pass: winter
Open ( free h heating
Open ( free heating)
Open modulated (free cooling)
Open modulated (free ccooling
closed
closed
