Airflow 90000660, Руководство пользователя и по обслуживанию

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MODBUS Control / MODBUS Monitor
Fire Switch
The MODBUS (via RS485) BMS control function helps to control the functions from a central
automation system. For more information, please contact our technical support team.
The MODBUS BMS monitoring enables the user to display the operating status of the unit and
receive fault signals (as different voltage outputs) in an unexpected failure of the unit.
This volt-free contact can be used to shut down the unit in case of a fire or any other emergency.
A volt-free switch should be connected to
the corresponding socket to activate this function.
This function is activated from “dip switch 4” in the control box on top of the unit.
2
1
UNIT-OK UNIT-FAULT UNIT-RUN
Heating Coil Function (Optional)
Cooling Coil Function (Optional)
This function is used in units which have duct type hot water coils. It controls the hot water coil
which helps to increase supply air temperature and works due to set and return air temperature.
It can control 230V on/off valve connected to water coil.
Note: To activate this function, following must be applied:
-Turn electric heater function on. (Turn dip switch 1 on)
-Make short cut in between HT_Fault and HT_P_Fault inputs.
-Connect 230V on/off valve to 1.step electric heater control cable ends.
This function is used in units which have duct type cold water coils. It controls the cold water coil
which helps to decrease supply air temperature and works due to set and return air temperature.
It can control 230V on/off valve connected to water coil.
Note: To activate this function, following must be applied:
-Turn electric heater function on. (Turn dip switch 1 on)
-Activate “Cooling Coil” on unit settings. (This can be done by authorized technical service
or default in factory)
-Make short cut in between HT_Fault and HT_P_Fault inputs.
-Connect 230V on/off valve to 2.step electric heater control cable ends.
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