York HP Series, Service Manual

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A For remote control (ON-OFF) terminal port CN23
1. Remove the short connector in CN23 when you use ON-OFF function;
2. When remote switch off (OPEN), the unit would be off;
3. When remote switch on (CLOSE), the unit would be on;
4. When close/open the remote switch, the unit would be responded the demand within 2 seconds;
5. When the remote switch on. You can use remote controller/wire controller to select the mode what you
want; when the remote switch off, the unit would not respond the demand from remote controller/wire
controller.
When the remote switch off, but the remote controller/wire controller are on, CP code would be shown on
the display board.
6. The voltage of the port is 12V DC, design Max. current is 5mA.
B For ALARM terminal port CN33
1. Provide the terminal port to connect ALARM, but no voltage of the terminal port , the power from the
ALARM system (not from the unit )
2. Although design voltage can support higher voltage, but we strongly ask you connect the power less