21
8.5.
Description of control board contacts
AO1
Exhaust fan control 0-10V
GND
Not used
AO0
Supply fan control 0-10V
GND
Not used
X13
Exhaust air temperature sensor
X14
Supply air temperature sensor
X15
Outside air temperature sensor
X16
Extract air temperature/ humidity sensor
AI1
DI2 function – "Away"
GND
AI0
DI3 function – "CO2 sensor"
24V
Not used
DI1
DI1 function – "Boost"
GND
DI0
DI0 function – "Fire alarm"
GND
Tach1
Exhaust fan tacho signal
GND
Tach0
Supply fan tacho signal
GND
X20
Control Panel connector
X1
Exthaust air fan L
X3
Exthaust and Supply fans N
X7
Preheater L
X10
Supply fan L
X11
Preheater N
K1
Bypass N
K2
Not used
L
Bypass L
L
Mains L
N
Mains N
N
Not used
F1
315mA fuse
