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Smarty 2X/3X V
www.salda.lt
System modes:
• Stand-by
• Building protection
• Economy
• Comfort
In stand-by mode the system is shut down for a permissible shutdown period (based on the stand-by mode blocking function settings).
The building protection mode is designed to protect a building against moisture accumulation. In this mode the system operates at speed 1. By default,
in this mode temperature maintenance is controlled (preferred temperature is indicated). However, if necessary, temperature maintenance can be
switched off.
Economy mode is designed to save energy when people are not in the room. In this mode the system operates at speed 2. By default, in this mode
temperature maintenance is controlled (preferred temperature is indicated). However, if necessary, temperature maintenance can be switched off.
Comfort mode is used when people are present in the room. In this mode the system operates at speed 3. In this mode the temperature is always
maintained.
System mode can be changed automatically by the functions (in a sequential order as indicated):
1 - Weekly Schedule
2 - Mode is activated from an external contactor
3 - User’s manual mode selection
4 - Holiday Schedule
5 - Stand-by mode blocking
Based on the weekly schedule the system decides which mode it will be operating in; however, the user may change the existing mode manually. The
system will inform when the next mode change is scheduled. After power loss the mode is selected based on the weekly schedule; however, if the
schedule is not set, the mode used before the power loss will be activated.
The user may change modes only when the mode is activated from an external contactor. The only case when the user cannot change the mode is
when the period of a holiday schedule is active. The system informs that the holiday schedule mode is active. To prevent blocking, the period of the
holiday schedule must be changed.
Stand-by mode can be blocked based on selected parameters. If at least one of the above functions changes its mode into stand-by mode, it must be
checked whether this mode is not currently blocked. If it is blocked, the previous selected mode is on.
The function order is provided below.
User entered data.
Reading of input
data
Data sending to outputs
and user interface
Weekly Schedule
Mode external switch
Holiday Schedule
Stand-by mode block-
ing
Protection against Dryness
Boost ventilation
Ventilation logics
Protections
Ventilation logics blocking
Manual control of com-
ponents
Start
End
