York HIDS006B21S Service Manual page 138

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.
Signal to terminals 1 & 2 of CN3
Control by Wired Controller
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.
5-8
Indoor Unit PCB
CN3
3
2
1
2
1
3P Connector
Wiring Diagram Example of Remote ON/OFF 3
(Example: Stoppage Input is set to terminals 1 and 2 of CN3.)
Unit Operation
(Example: Stoppage Input is set to terminals 1 and 2 of CN3.)
NOTE:
The pulse range is 200ms or more.
X1
X1
Control Circuit
Time Chart
OFF
Power
Supply
Time
SM-18001-rev.1