RESET
Event resetting in program mode.
System resetting in sensors data display mode.
PROG
Program mode, options.
SCREEN
Temperature sensors data indication.setting
EDIT
Maximum level of CO
2
setting.
nC
FILTER
Room
Heating
Cooling
InFo : 00h
2
3
4
5
6
7
8
9
Eco
11
12
Plate heat exchanger antifrost function active.
Remote control (no connection with AHU).
Dirty filter, expired filter timer or signal from differential pressure switch.
AHU control - based on the extracted air temperature.
AHU in heating mode.
AHU in cooling mode.
Day time limit expired to stop AHU. It's impossible to stop AHU.
AHU in STOP mode by external signal.
Critical temperature of the exhaust air.
Critical temperature of the supply air (lower than 16,5°C).
Warning Psi, unit will not work according to set parameters.
Low humidity level.
Hight CO
2
level. Exceeded the permissible level of CO
2
.
Humidity sensor error.
Night Cool.
AHU works in ECO mode (lowest fan speed and lowest temperature settings).
Activated by an external „Stop“ signal.
Activated by an external „Boost“ signal.
AHU in „Standby“ mode.
Alarm
A1
A2
A3
A4
A5
A6
A7
A8
A9
J1
External alarm signal (fire alarm).
Heat exchanger icing (differential pressure switch signal).
Signal from differential filter pressure switch.
Speed autotransformer overheating.
Critical temperature of water (broken water pump or water damper actuator, cold water).
Heater overheating.
Low AHU supply voltage.
Common external input „Alarm“.
Rotor fault (rotor motor, belt, belt guard).
Supply air temperature sensor fault.
