System Versions And Running Time; Air Flow Adjustment; Pid Controller Adjustment; Manual Control Of Components - Salda MCB Technical Manual

5.15. SYSTEM VERSIONS AND RUNNING TIME

In the section ADJUSTER › USER SETTINGS › ABOUT you may see software and configuration versions that are saved in the production line namely
to every unit. Next to them the running time since the unit has been manufactured is also displayed. It is calculated when the fans are rotating.

5.16. 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 mode:
› 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 than in ECONOMY MODE, the air-flow of the latter is
reduced 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.

5.17. PID CONTROLLER ADJUSTMENT

In the adjuster environment window ADJUSTER › PID CONTROLLERS ADJUSTING the coefficients of the existing PID controllers are adjusted. The
amount depends on the system configuration. If the system operation for any reasons is unstable (fluctuating), PID coefficients may be adjusted.
It is recommended that a specialist did this.

5.18. MANUAL CONTROL OF COMPONENTS

This function manually activates/deactivates the components controlled by digital and analogue outputs. The latter ones are controlled in per-
centage, 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 whether 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 indi-
cated manually. The values may be indicated via the Modbus interface.

5.19. SYSTEM MONITORING

The service and adjuster environment have the window MONITORING where you can monitor operation of the entire system, i.e. see controller input
and output, CO values, versions of connected modules, date and time, speed of fans, temperatures, pressure, etc. The amount of information
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depends on the system configuration. This tool is designed for preventive maintenance of the system.

5.20. MODULE IDENTIFICATION

Three expansion modules can be connected to the main MCB board:
› EX1 module (module to control a heat recovery unit);
› EX2 module (power module with relays);
› Communications module.
Every module has its version, thus if it is connected instead of DISCONNECTED, a specific version number appears. Module states can be monitored
in the service or adjuster environment window MONITORING.

5.21. 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.
MCB_miniMCB v2019.1 EN | 9