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User’s Manual
5
!
Parameters available in the LCD window depends on a AHU type and the control
application. Hence in AHUs not equipped with heater, options related to the heating
module will not be visible.
SYSTEM START-UP
!
Operation of the AHU is strictly arrested by the
fi
re-protection alarm, activation of the
thermal protection of fans' motors, threefold activation of the protection of electric heater
and threefold activation of the anti-frost thermostat. Each of these events requires
removing the cause of the alarm and then canceling it (see more details in Advanced
Manual).
SWITCHING ON POWER SUPPLY
Switching on power supply of the control gear with the mains switch (Q1M). Correct controller operation is
indicated by green LED “COMM” blinking on the PCB inside the control box and on the HMI OPTIMA device.
The system is ready for operation immediately after switching on.
QUICK START
For quick access there are four screens with the most
basic information and settings. These are suf
fi
cient for daily
operation. To run the unit quickly just do:
▪
Check the
Unit state
screen
Stop
means, the unit is already con
fi
gured, is free of
alarms and other malfunctions and is ready to run
▪
Check the
Temp. setting
and put the correct value if
necessary
▪
Check the
Temp.readout
▪
Select the
Operation mode
according to current
expectations
1. Stop – unit remains stopped
2. Stage I – unit run, fans set to 1
st
speed (low capacity)
3. Stage II – unit run, fans set to 2
nd
speed (high capac.)
4. Standby – unit stopped to save energy, but ready for
automatic start up, to keep the temperature within
speci
fi
ed safe range
5. Calendar – unit working automatically, according to the
real time clock settings
1
Unit state
Stop
2
Operation mode
Stop
3
Temp. setting
22.0 °C
4
Temp. readout
25.3 °C
