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1. GÉNÉRALITÉS • GENERAL • ALGEMEEN • GENERAL • GENERALE
6) Constant flow operation
When the constant flow operation in enabled (on), the unit speeds up or slows down depending on the variations of the resistances caused by
long length ducting or external windy conditions.
The constant flow operation can be set in the following way:
- press the MENU button until the "c" (c) letter is displayed.
- press the buttons + or - to enable or disable, as follows:
Setting
Off (default)
On
7) Installation type
Based on the selected installation type, the unit scales its speed (minimum, intermediate and maximum) to obtain the selected air flow rates.
"Through wall" installation: unit is typically mounted on an external wall or window and discharge direct to the outside.
"In room" installation: unit is typically mounted on the ceiling or internal wall which are ducted to the outside.
NOTE: the unit runs at a higher speed when "In room" installation is selected.
The installation type can be set in the following way:
- press the MENU button until the "I" (I I ) letter is displayed.
- press the buttons + or - to chose the type of installation as follows:
Setting
Through wall (default)
In room - Ducted
8) Run-on timer
The unit is equipped with a run-on timer, settable from 1 to 25 minutes. When the external switch is turned off, the unit continues to run at the
intermediate speed for the pre-set period of time.
When the time is expired, the unit returns to the minimum continuous speed.
If the external switch does not stay active for 3 minutes, the run-on is not performed.
In AUTO mode the run-on timer is automatically activated, depending on how long the switch is active, as follows:
- if the external switch is active for under 3 minutes, the unit does not run-on.
- if the external switch is active for between 3 and 10 minutes, the unit runs on for 5 minutes.
- if the external switch is active for between 10 and 20 minutes, the unit runs on for 10 minutes.
- if the external switch is active for over 20 minutes, the unit runs on for 15 minutes.
The run-on timer can be set in the following way:
- press the MENU button until the "T" (t) letter is displayed.
- press the buttons + or - to increase or decrease the run-on time between the values shown in the table below:
Setting (minutes)
AUTO (default)
1
5
10
15
20
25
OFF
14
Constant flow (c c )
Value Displayed
oF
oN
Installation type (I I )
Value Displayed
tW
Ir
Run-on timer (t t )
Value Displayed
AU
1
5
10
15
20
25
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