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User’s Manual
6
2. APPLICATION BASICS
MAIN MENU STRUCTURE
Unit state
– indicates the current state of the air handling unit
and the control system
▪
Stop – normal stop of the unit
▪
Running – normal operation of the unit with ventilation and
heating / cooling / recovery enabled according to current
unit state and demand
▪
Alarm state – unit in alarm state
▪
Fault stop – unit stopped by a fault
▪
Init. heating – initial heating of the water heater, to prevent
from frost alarm during start-up
▪
Service mode – unit ready to change basic settings like
application code
Note!
That is initial factory setting of the controller. See
Advanced Manual for details.
▪
Fast heating – special mode for recirculation, to ensure
quick heating up with max. possible recirculation
▪
Overrun – special mode for stopping the unit if equipped
with electrical heater or DX-cooler, delays stopping the fan,
until safe conditions for the heat exchanger are established
Operation mode
– used to set the main operating mode from
the HMI OPTIMA
▪
Stop – unit stopped
▪
Stage I – unit running, fans set to 1
st
speed
▪
Stage II – unit running, fans set to 2
n
d speed
▪
Standby – unit stopped to save energy, but ready for
automatic start up, to keep the main temperature within
speci
fi
ed safe range
▪
Calendar – unit working automatically, according to the
real time clock settings
Temp. setting
– setpoint for temperature regulator
▪
Low limit: 5°C
▪
High limit: 35°C
▪
Default: 22°C
Temp. readout
– current value of the temperature measured by
the main sensor
PARAMETERS
– jump to read out main working conditions
CALENDAR
– jump to settings for time scheduled operation
SETTINGS
– jump to detailed controller con
fi
guration
SERVICE MENU
– jump to fundamental settings of the control
system, like application code, used in Service mode of the
controller
Unit state
Service mode
Operation mode
Stop
Temp. setting
22.0 °C
Temp. readout
25.3 °C
PARAMETERS
CALENDAR
SETTINGS
SERVICE MENU
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v.2.1 20-04-12
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