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Smarty 2R VE / 2R VE plus
www.salda.lt
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.
Proper date and time must be set to have proper functioning of schedules, event log and winter/summer function. Fast synchronization with the com-
puter time is possible in user and adjuster environments.
User entered data.
Reading of input
data
Data sending to
outputs and user interface
Weekly Schedule
Mode external switch
Holiday Schedule
Stand-by mode blocking
Protection against Dryness
Boost ventilation
Ventilation logics
Protections
Ventilation logics blocking
Manual control of
components
Start
End
The field of a system status is designed to notify a user of the existing system status. The table below provides possible system statuses.
System status
Description
Stand-by mode
System operates in stand-by mode
Building protection mode
System operates in building protection mode
Economy mode
System operates in economy mode
Comfort mode
System operates in comfort mode
Emergency run
System operates in emergency mode. For more information see alarms
Preparing
System is preparing for operation (pre-heating water heaters, etc.)
Opening dampers
Dampers are opened
BOOST function activated
“BOOST” function is active
Cooling heaters
Electric heaters are cooled down prior to stopping fans
Closing dampers
Dampers are closed
Critical alarm
Critical failure, system is shut down. For more information see alarms
Fire alarm
Fire protection from an external contactor is activated
Heat exchanger frost protection activated
Heat exchanger frost protection is activated
Change filters
Warning on clogged filters. Pressure relays are activated or filter timer is activated
Room RH 3 days average is lower than 30%. Limiting 3 speed. Protection against dryness is activated. Room 3-day humidity average is lower than
30%. Air flow is reduced
