York YLCC-H Technical Information page 52

RS485 serial line connection
This accessory allows connecting the air conditioning unit
to a monitoring network by means of an RS485 serial line
connection. This connection is also necessary to install the
remote terminal accessory.
Assembly
Connect the accessory to the four-pole socket base at the
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Attention:
- Fasten this device inside the electric panel to avoid ac-
cidental disconnection.
- Disconnect power supply before carrying out interconnec-
Max. distance
Speed
Cable characteristics
Cable section
52
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1.000 m. (insert a 120 ohm 1/4W resistor in the last RS485 connection)
19.200 bauds
2 twisted cables with shielding
AWG22 (0.35 mm²)
right bottom angle of the display and keyboard module.
Use the 4-cable connector included. Connect to the monitor-
ing system as shown in the following diagram.
The series should end by connecting a 20 ohm /4 W resist-
ance between terminals TxRx+ and TtxRx-.
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tions.
- Keep the serial connection cables away from the power
cables.
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