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Smarty 3X VE / Smarty 3X VE 3.0
www.salda.lt
The unit control automation has the built-in protection against short circuit:
• fresh air preheater protection (fuse)
• supply air heater protection (fuse)
• unit protection (fuse)
The built-in door end switch enables instantaneous (short-term) visual inspection of the unit and user’s protection against rotating parts (if the unit door
is accidentally opened). If it is activated, the unit is shut down.
To ensure safe maintenance of the unit, it is necessary to remove the plug from the power network
or disconnect supply voltage by a two-pole circuit breaker. In which case, the additional protection
of the circuit breaker against its accidental switch-on must be ensured.
Prior to start-up the system must be thoroughly cleaned. Check whether:
• operation systems and unit elements as well as automation and automation devices were not damaged during installation,
• all consumers are connected to power supply and fit for service,
• all necessary automation elements are installed and connected to power supply and terminal block X16
• cable connection to terminal block X16 comply with the existing power connection diagrams,
• all electrical equipment protection elements are properly connected (if they are additionally used),
• cables and wires correspond to all applicable safety and functional requirements, diameters, etc.,
• earthing and protection systems are properly installed,
• condition of all seals and sealing surfaces is proper.
The recuperator can be connected to the BMS network by using the ModBus protocol.The device can be controlled using FLEX panel and BMS network
simultaneously: the device will work based on the latest changes of settings. As set in the factory, the device will operate (if no faults are present) based
on the latest panel settings in case the panel or BMS network (or even both) is disconnected. This setting can be changed, please see Flex_meniu_fitter
section 14 “Misc” for details.
ModBus type: RTU
RS485_2 port is used for connecting the
ModBus (Fig. 3);
Settings (see section II.6.2. of the FLEX
installer description):
RS485_1 and RS485_2. RS485_1
– remote control panel socked; RS485_2: Mod-Bus port
RJ11 purpose of connectors:
1 – COM
2 – A
3 – l
4 – +24V
Microswitches 1 and 2 (Fig. 4) are mounted in the control board for selecting of resistances
during network adjustment. Adjustment depends on the connection method. If the ring type
connection is used, up to 30 units could be connected. If other method is used, approximately 7
units could be connected. The resistance between the fi fi rst and the last unit should be 120...150 Ω.
Resistance Ω
Switch 1
Switch 2
180
ON
ON
470
ON
OFF
330
OFF
ON
The remote control can be connected to and disconnected from the unit only after
switching off the supply voltage of the unit.
Microswitches 1 and 2
