Use and Care Manual

www.ventilation-system.com
14
TwinFresh Expert
Humidity sensor set value.
The humidity sensor measures the extract air humidity.
If the extract air humidity is above the set point, the ventilator switches to Speed III.
As humidity drops down to the set point, the ventilator changes to pre-set speed after elapsing of the time set on the delay timer.
Humidity control is
disabled
Set value
40 %
Set value
50 %
Set value
60 %
Set value
70 %
Set value
80 %
3 4 5 3 4 5 3 4 5 3 4 5 3 4 5 3 4 5
Delay timer.
During activation of the humidity sensor or any other control unit the ventilator switches to higher speed.
After normalization of the indoor humidity level or any other air parameters the ventilator returns to a previously set mode in set time period.
Time delay
0 min
Time delay
5 min
Time delay
15 min
Time delay
30 min
6 7 6 7 6 7 6 7
DIP-SWITCH POSITIONING
1
Turning the ventilator off is allowed.
The switch position enables deactivation of the ventilator with the button on the control panel side.
1
Turning the ventilator off is not allowed.
The switch position disables deactivation of the ventilator with the button on the control panel side.
TwinFresh Expert RA1-50 TwinFresh Expert Duo RA1-30
Fan rotation direction:
For controlled ventilation it is recommended to install the ventilators
pairwise and integrate them in a group using a signalling cable.
Set one half of the connected units into supply mode and the other half
into extract mode.
Operation algorithm when a humidity sensor is activated:
In case of a humidity or an external relay sensor activation the ventilation
unit follows one of two operation algorithms.
2
Air supply.
This positioning of the switch enables supply operation
of the ventilator in Ventilation mode.
In Regeneration mode the ventilator starts operating first
in supply mode.
2
Algorithm 1.
Both fans operate in air extract mode at maximum
speed.
2
Air extract.
This positioning of the switch enables extract operation
of the ventilator in Ventilation mode.
In Regeneration mode the ventilator starts operating first
in extract mode.
2
Algorithm 2.
Both fans switch to maximum speed.
One fan operates in air supply mode the other one - in
air extract mode.
Turning the ventilator on/o
Party mode
Activation of Speed III by timer
(4 hours by default)
Night mode
Activation of Speed I by timer
(8 hours by default)
Speed selection
Ventilation mode
TwinFresh Expert RA1-50
The ventilator operates in supply or
extract mode at set speed.
TwinFresh Expert Duo RA1-30
One fan operates in the air extract
mode and the other fan operates in
the air supply mode at set speed. The
fans do not change their rotation
direction.
Regeneration mode
TwinFresh Expert RA1-50
In this mode the fan rotation
direction changes to opposite each
70 seconds. This operation mode
enables heat recovery.
TwinFresh Expert Duo RA1-30
In this mode the rotation direction of
both fans changes to opposite each
70 seconds. Heat recovery is
performed in this mode.
Speed/o
The speed setting engages cyclically:
I-II-III-Off.
Buttons
on the ventilator
casing
Remote control
VENTILATOR OPERATION
The ventilator can be operated with the remote control
or the control buttons on the side part of the indoor unit, as
figured below.
In case of in series or in parallel connection the signal from a
control unit is received by the first ventilator (Master) only.
V139EN-01.indd 14 11.08.2016 11:51:28