7.4.19. STAND-BY MODE BLOCKING
This function is designed to protect the system against the impermissible unit shutdown and it is recommended to limit the unit shutdown up to 1
hour within 12 hours during the winter season. Possible function modes:
• Always allow shutdown;
• Block shutdown;
• Block shutdown in winter;
• Block shutdown in summer.
It must be indicated for how long the shutdown is permissible within 12 hours. If it is blocked and the system is shut down, the system counts and
informs the user on the remaining time. This function is configured in the service environment (SERVICE › MAIN › SYSTEM BLOCKING).
If the time has expired and Stand-by mode is blocked, the user is informed by the function indication.
7.4.20. AIR FLOW ADJUSTMENT
Air-flows are adjusted in the adjuster environment window ADJUSTER › AIR FLOWS ADJUSTING. There are 4 of them in the system and they are dedicated to
specific modes:
• Building protection;
• Economy;
• Comfort;
• Maximum power (BOOST function).
Air-flows are arranged in an ascending order, i.e. upon setting lower air-flow in COMFORT mode then in ECONOMY mode, the air-flow of the latter is re-
duced automatically. With respect to the system configuration, air-flows are indicated in percentage, pressure or amounts of air. 100 % value of
air-flow is indicated in service environment window SERVICE › FANS › FAN SPEED CONTROL.
7.4.21. MANUAL CONTROL OF COMPONENTS
This function manually activates/deactivates the components controlled by digital and analogue outputs. The latter ones are controlled in percent-
age, and digital ones – by ON/OFF. Based on manufacturer's parameters (by default) the status of all components is AUTO, which means that control
is based on air handling unit operating algorithm. Components are displayed by the system configuration. Settings must be saved so they remain
active after power loss.
The lowest power consumption is when the Stand-by mode is on, and position of components – AUTO.
Prior to using the manual control function, it is recommended to activate the force shutdown function, which blocks the air handling unit operating
algorithm.
This can be useful, if you need to check if everything is properly connected. Moreover, in the event of failure, certain components can be activated
so that the unit operates irrespective of sensors and protections. Of course, this method should be applied in exceptional cases until the failure
is rectified.
If the service environment window SERVICE › SENSORS displays an external (REMOTE) type of a temperature sensor, its temperature may be indicated manu-
ally. The values may be indicated via the Modbus interface.
7.4.22. CHANGING PASSWORDS
In the service environment section SERVICE › MAIN › PASSWORD › PASSWORD CHANGING MODE › ON you can change login passwords. For this it is necessary to acti-
vate the change and after entering a preferred password (4 digits), click a button SET. To review and change the parameters without a password,
just set 0.
7.4.23. RESTORING FACTORY DEFAULTS
If set parameters result in incorrect operation of the system, you can always restore the factory defaults in the service environment window SERVICE
› MAIN › FACTORY SETTINGS.
7.4.24. INDICATIONS OF FUNCTIONS, ALARMS AND WARNINGS
User about active functions, warnings or alarms is notified in the window ADJUSTER › ALARMS or USER › ALERT. Functions are displayed in the main window
ADJUSTER › VENTILATION CONTROL or in the user environment window. The table below provides indications and their descriptions.
FUNCTIONS
Working indication output
Alarm indication output
System mode switch
Custom fans speed switch
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DESCRIPTION
Working indication output is activated
Failure indication output is activated
Switching on from an external contactor is activated
Selected fans speed from an external contactor is activated
SMARTY RV v2019.04