Samsung MXD-K100XN Installation Manual page 10

Installation
Control-KIT Function
• Control-KIT controls the system through outdoor unit and wired remote controller.
• Control-KIT outputs the contact signal for AHU fan operation.
AHU when operating in Cool/Heat/Fan mode. This contact signal output can not be used as power supply for the
motor.
• Terminal block 3, 4 (Refer to page 11) is for AHU-KIT control to receive the fan operation status. This input signal
should be simple OPEN/SHORT signal without any extra voltage.
- Normal fan operation : Terminal block 3, 4 is in SHORT.
- Fan is not in operation : Terminal block 3, 4 is in OPEN.
- To use fan feedback to protect your system, set the 05 series installation option SEG21(Refer to page 28) to "1".
• Connect 220 - 240 V, 50 / 60 Hz (208 - 230 V, 60 Hz for US) to terminal block 1(L)/2(N).
• You should connect outdoor unit communication cable to communication line (F1, F2)(Refer to page 11).
• F3, F4(Refer to page 11) is communication line for wired remote controller(12 V).
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