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Smarty 4X V
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• Unscrew the front bolt securing (1) the control board holder to the unit casing.
• Withdraw the automation through the front part (2).
• Disconnect control board from the Switching power supply (3).
• The connectors are marked according to connection location. Thus during automation reassembly please observe the marking of the connection
location of connectors and controller. If the marking on the controller terminals is not visible follow the PCB information provided in this passport (see
miniMCB description: Fig. 2 and Fig. 3):
Prior to connecting the unit to the mains, the door shall be closed.
• All the metering, control and execution units shall be mounted in freely accessible locations for maintenance, repairs or replacement.
•
Prior to handover to the user, the pre-commissioning activities shall be performed to ensure proper operation of the automatic control system of the
air handling unit. Power plug socket shall be installed at a distance to ensure unstrained power cable of the unit. Standard length of the unit power
cable shall be: ~2.5 m long from the unit casing.
The installed plug socket shall be of at least the same nominal current as the unit nominal current, which is indicated in the unit rating plate.
Unit shall be connected to the mains through the cur-
rent leakage relay (30 mA).
After complete dismantling of the unit control auto-
mation and its reinstallation, when connecting the
automation connectors, it is necessary to check if the
connector conductors are not damaged or otherwise
broken.
1.
2.
3.
1.
2.
3.
4.
5.
6.
7.
• Unscrew screw at the front side;
• After loosening power supply, lift it up in order to disconnect connector below. (2-3).
• Power supply is under the protection cover. Please remove the cover in order to change it (4-5). Then release power supply from the base (6-7).
• Perform assembly in the reverse order.
• Connectors are marked according connection place, therefore, please, pay attention to the marking.
