Geniox user manual

Table Of Contents
38
| Start-up, adjustments, use, commissioning and unit in hipernation
40˚C. The controller is as standard configured to stop the fans and close the dampers if a thermostat is released. On the
site qualified technicians are able to change the configuration.
J.5.7.4 One smoke detector in extract air
The smoke detector has been installed in extract air next to the fan. The controller is as standard configured to stop the
fans and close the dampers if the detector is released by smoke. When the unit has been shut down by a fire signal, the
unit has to be restarted on the control panel. On the site qualified technicians are able to change the configuration.
J.5.8 Electric heating coil
J.5.8.1 Control of heating capacity connected to unit with Systemair control system
Electric heating coil installed with separate controller beside the heater. The separate controller is designed for capacity
conversion of the 0-10 V control signal from the main control system. The electric heater is not supplied from the air
handling unit cabinet as the cabinet is not designed to supply the heater with power. No power supply cables are con-
nected to the electric heater. The separate controller is without supply disconnecting device.
J.5.8.2 Control of heating capacity connected to unit without Systemair control system
Electric heating coil installed with separate controller beside the heater. The separate controller is designed for capacity
conversion of the 0-10 V control signal from the main control system. The heating capacity is adapted in steps.
The electric heater is not supplied from the air handling unit cabinet as the cabinet is not designed to supply the heater
with power. No power supply cables are connected to the electric heater. The separate controller is without supply dis-
connecting device.
J.5.9 Speed control of fans
J.5.9.1 Control system - frequency converters inside the unit are IP 20
Fan motor revolutions are controlled by frequency converters, and they are configured and tested to comply with the
data for the unit. The frequency converter for each fan motor is installed inside the unit beside the fan motor with ca-
bles between motor and converter. In units with complete control system the frequency converters are delivered with
system parameters adapted to the motors and the project.
J.5.9.2 Pressure transmitters
Separate control of the air flow or duct pressure for supply fan and for extract fan. The required air flow or duct pres-
sures with normal as well as reduced capacity are selected on the Systemair Control Panel. The actual pressure is meas-
ured by pressure transmitters. PI calculation in the controller continuously transmits the necessary revolutions for the
fans to the frequency converters to achieve the required pressure.
J.5.9.3 CO2-dependent air flow
The air flow is controlled by a CO
2
sensor. High CO
2
concentration is equal to higher air flow. Low CO
2
concentration is
equal to lower air flow. Based on the actual CO
2
level and a min/max level, the needed airflow is calculated. The speed
of each fan is adjusted via frequency converter. Terminals in the cabinet are available for connection of the sensor.
J.5.9.4 Humidity dependent air flow
The air flow is controlled by the humidity sensor. High humidity is equal to higher air flow. Low humidity is equal to low-
er air flow. Based on the actual humidity level and a min/max level the needed airflow is calculated. The speed of each
fan is adjusted via frequency converter. Terminals in the cabinet are available for connection of the sensor
J.5.10 Cabinet
J.5.10.1 Integrated cabinet in units with control system
Cabinet is integrated in the unit behind an inspection door. Terminals are installed in the cabinet for all external compo-
nents. The number of terminals is always adapted to the individual order.
J.5.10.2 Cabinet placed on the unit with control system
The models with the cabinet on the unit are exclusively for indoor installation. Terminals are installed in the cabinet for
all external components. The number of terminals is always adapted to the individual order.
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