EAS ELECTRIC ECRP86EKD Manual De Instrucciones página 54

3-4-2 Communication wiring
• The communication between the indoor unit and wired controller is bi-directional
communication. The parameters displayed on the wired controller are refreshed in real time
according to changes in the parameters of the indoor unit.
• X1 and X2 are terminals to connect the indoor unit and wired controller. There is no polarity
between X1 and X2.
• The longest wiring length between the wired controller and indoor unit is 200 meters.

One controller to one indoor unit connection method

Two controllers to one indoor unit connection method
P/Q/E P/Q/E
X1/X2
○○○
1-to-1
One controller to one indoor unit connection method
P/Q/E
X1/X2
1-to-1
Figure 3.7
7
P/Q/E
X1/X2
1-to-1
V.2