www.blaubergventilatoren.de
KOMFOrt EC S(B)200/250(-E)
8
Compatibility table of optional equipment and unit models
FS1 int
er
nal
humidit
y sensor
FS2 int
er
nal
humidit
y sensor
Room CD
-1
sensor
Room CD
-2
sensor
Room humidit
y
sensor
Room V
OC
sensor
(0-10 V
)
Room C
O
2
sensor
(0-10 V
)
Room humidit
y
sensor
(0-10 V
)
EVH heat
er
ENH heat
er
KOMFORT EC S200 S14
—
+
+
+
+
—
—
—
—
—
KOMFORT EC SB200 S14
KOMFORT EC S200-E S14
KOMFORT EC SB200-E S14
KOMFORT EC S250 S19
+
—
+
+
+
+
+
KOMFORT EC S250 S14
—
+
—
—
KOMFORT EC S250 S11
+
—
—
—
—
+
—
KOMFORT EC SB250 S19
—
+
+
+
+
+
KOMFORT EC SB250 S21
—
+
+
+
+
+
+
KOMFORT EC SB250 S14
—
—
—
—
—
—
KOMFORT EC SB250 S11
+
—
—
—
—
+
—
KOMFORT EC S250-E S19
—
+
+
+
+
+
KOMFORT EC S250-E S14
—
+
—
—
KOMFORT EC S250-E S11
+
—
—
—
—
+
—
KOMFORT EC SB250-E S19
—
+
+
+
+
+
KOMFORT EC SB250-E S21
—
+
+
+
+
+
+
KOMFORT EC SB250-E S14
—
+
+
—
—
——
—
—
KOMFORT EC SB250-E S11
+
—
—
—
—
+
—
UNIT OPERATION MODES
Heat Recovery mode
Air from the room flows into the unit, where it is filtered by the extract filter, then air flows through the heat exchanger and is exhausted
outside by the exhaust fan. Air from outside flows into the unit, where it is cleaned in the supply filter. Then the air flows through the
heat exchanger and is directed to the room with the supply fan. Intake air is heated in the heat exchanger by transferring the heat energy
of warm and humid extract air to the cold fresh air. The air flows are fully separated while flowing through the heat exchanger. Heat
recovery minimizes heat losses, which reduces the cost of space heating in the cold season.
Freeze protection
(danger of freezing appears when the exhaust air temperature downstream of the heat exchanger is lower than
+5 °C and intake air temperature upstream of the heat exchanger is lower than -3 °C for the units with preheating, and when exhaust
temperature downstream of the heat exchanger is lower than +3 °C for the units without preheating). To protect the heat exchanger from
freezing in the cold season, the unit has a Frost Protection mode based on the temperature sensor readings. The temperature sensor is
installed in the exhaust air duct downstream of the heat exchanger.
The Frost Protection mode is activated at an exhaust air temperature of +3 ˚С. After temperature increase the unit returns to the previous
operation mode. In units with an S11 or S19 control panel, the frost protection mode must be activated, see the User’s manual of the
control panel. In case of freezing danger, the supply fan is turned off in the units with an S14 control panel. After temperature increase
the unit returns to the previous operation mode. The KOMFORT EC S(B)250(-E) S21 units have three frost protection modes: gradual
reduction of the supply fan speed; with the bypass; with the electric preheater (if the unit is equipped with a duct preheater). Mode
selection and settings are described in the S21 control system user’s manual.
Summer Cooling mode (ventilation)
The extract air flows through the bypass duct and does not come in contact with the heat exchanger. The air duct is opened with the
bypass damper. The intake air temperature remains constant.
