During the management and control of Mr Slim units, it is necessary to use interface cards (PAC-IF013B-E), through which the s-MEXT unit will send commands and request

information from the Mr. Slim units.

There are 2 possible types of connections for the use of Mr Slim units, depending on the number of them being used with the s-MEXT unit.

The following diagrams identify the connections.

5.1.1

Connection to only one external Mr Slim unit

The connection, represented in the figure below, requires the internal unit (s-MEXT) to control through the RTU Modbus protocol the PAC-IF013B-E card, which will then

manage the Mr Slim external unit.

5.1.2

Connection to more than one external Mr Slim unit

With this connection, represented in the figure below, the internal unit (s-MEXT) controls through the RTU Modbus protocol the Master PAC-IF013B-E card, which will then

manage both the first external Mr Slim unit (address 0) and the Slave PAC-IF013B-E card.

The Slave PAC-IF013B-E card manages the second Mr Slim unit (address 1).

In this case, the PAC-IF013B-E Master card must be configured for the IMOUC function (Intelligent Multiple Outdoor Unit Control), independently managed by the PAC-

IF013B-E.

Technical manual

Figure 5-1: Logic diagram for connection to 1 Mr. Slim unit

Figure 5-2: Logic diagram for connection to 2 Mr. Slim unit

TRANSLATION OF THE ORIGINAL INSTRUCTIONS

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