York IDM030B21E Series, Service Manual

Page: 96 / 144

5-8
SM-16005-rev.2
EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING
(3) Remote ON/OFF 3 (Pulse Signal Input) [ Input Setting: Code (05) ]
The setting for Remote ON/OFF 3 shall be the same as that for Remote ON/OFF 2. By using the
signal from a building management system, the indoor units can be stopped.
If a signal is input during the stoppage of the indoor units, the unit remains unchanged.
An example of basic wiring and time chart is shown below.
OFF
X1
Power
Supply
Control Circuit
Indoor Unit PCB
CN3
X1
3P Connector
3
2
1
2
1
NOTE:
The pulse range is 200ms or more.
Wiring Diagram Example of Remote ON/OFF 3
(Example: Stoppage Input is set to terminals 1 and 2 of CN3.)
Signal to terminals 1 & 2 of CN3
Control by Wired Controller
Unit Operation
Time Chart
Time
(Example: Stoppage Input is set to terminals 1 and 2 of CN3.)
NOTES:
1. Picking up signal within 10 seconds after power supply is turned ON is not possible due to initialization
of the components.
Do not change the signal (ON/OFF) in this period.
2. Wired Controller is required for this function.
3. If multiple indoor units are connected to the same communication cable for wired controller, input the
signal to any of these indoor units.
4. When the communication cable is not used in the twin, triple and quad combinations for simultaneous
operation, input the signal to the main indoor unit.