Use and Care Manual

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7
Filter
Cleans the air flowing through the
ventilator of dust and foreign
objects. Prevents contamination
of the regenerator.
Fan
Generates air flow.
Regenerator
Provides extract
air energy
regeneration for warming up of
supply air flow.
Regenerator
Provides extract air energy
regeneration for warming up
of supply air flow.
Socket connector
Provides connection to the control board.
Fan
Generates air flow.
TwinFresh Expert RA-50 TwinFresh Expert Duo RA-50
CARTRIDGE DESIGN
TWINFRESH EXPERT RA1-50 OPERATION MODES
The ventilator has two operation modes:
Ventilation. The ventilator operates either in extract or supply mode at a set speed.
Regeneration. The ventilator operates in reversible mode with heat and humidity recovery.
Air supply. All the connected ventilation units in the network switch to air supply mode.
In Regeneration mode the ventilator operates in two cycles, 70 seconds each.
Cycle
I. As warm stale extract air flows through the ceramic regenerator, it heats up and moisturizes the regenerator and transfers
up to 93 % of heat energy. In 70 seconds after the regenerator gets warmed the ventilator is switched to supply mode.
Cycle II. Fresh intake air from outside flows through the ceramic regenerator, absorbs accumulated moisture and is heated up to the
room temperature. In 70 seconds after the regenerator gets cooled down, the ventilator is switched to air extract mode and the cycle
is renewed.
A
I
R
E
X
T
R
A
C
T
A
I
R
S
U
P
P
L
Y
+20 ˚С
-7 ˚С
+20 ˚С
-7 ˚С
+17 ˚С
-10 ˚С
+17 ˚С
-10 ˚С
70 s
70 s
19.4 ˚F
19.4 ˚F
14 ˚F
14 ˚F
62.6 ˚F
62.6 ˚F
68 ˚F
68 ˚F
The cartridge is a solid block and cannot be dismantled.
The TwinFresh Expert RA1-50 unit has a cartridge with filters that can be easily removed for maintenance purposes.
The socket connector routed from the cartridge is connected to the control board in the back part of the indoor unit.
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