York YHKMXH009BARX-FX, Service Manual, Page: 219 / 269

If the fan motor stops, the negative ion generator will stop.
2.2.17 Auto-restart function
A: Wired control type: jumper J07 at high level, auto-restart is available, if at low level, auto-restart is cancelled;
when out of factory, the unit is with auto-restart function.
B: Remote control type: In 5 seconds, press SLEEP button(press SWING if without SLEEP button) 10 times
continuously, the buzzer will sound 4 times and enter auto-restart function. In 5 seconds, press SLEEP 10 times
continuously, the buzzer will sound twice and quit auto-restart function.
C: Memory information: ON/OFF state, mode, fan speed, set temp., health, swing position;
D: If the memory includes timer or sleep function, when being electrified again, timer and sleep will be cancelled;
E: If the memory includes auto mode, when the jumper shows cooling only type, auto mode will change to
cooling mode.
2.2.18 Room card function
The unit adopts room card function(220VAC input), which only make ON/OFF control. When it is connected, the
unit is ON; when it is disconnected, the unit is OFF, and the other parameters will be as default or the data in
memory.
A: When room card function is available
The central control, remote control/wired control and the room card are “AND” logical relationship. On the
condition that the room card is connected, the unit can be controlled by remote controller or wired controller;
indoor unit will run at the set state by the central controller, remote controller or wired controller; otherwise, if
room card is not connected, the unit can not be controlled.
B: When room card function is not available
The unit will be controlled by the remote controller, the wired controller or the central controller.
2.2.19 Setting method of temperature compensation Tcomp
A. Wired control type unit: this function is not available
B. Remote control type unit:
In cooling or heating mode, there is always with the temp. compensation.
In heating mode: In 24
o
C heating mode, press SLEEP(or SWING) button 7 times continuously within 5 seconds,
indoor buzzer sounds twice, that shows temp. compensation works. Switch on the unit in
heating mode by the remote controller, press TEMP button to set the set temp., so temperature
compensation=the current set temp. - 24
o
C. For example, if the set temp. is 24
o
C, the temp. compensation is
0
o
C; if the set temp. is 25
o
C, the temp. compensation is 1
o
C. The max. compensation temp. is 6
o
C (the set temp.
is 30
o
C). If you want to cancel it, set the temp. as 24
o
C.
In cooling mode: In 24 o C cooling mode, press SLEEP(or SWING) button 7 times continuously within 5 seconds,
indoor buzzer sounds twice, that shows temp. compensation works. Switch on the unit in
heating mode by the remote controller, press TEMP button to set the set temp., so temperature
compensation=24
o
C-the current set temp. . For example, if the set temp. is 24
o
C, the temp. compensation is
0
o
C; if the set temp. is 23
o
C, the temp. compensation is -1
o
C. The max. compensation temp. is -8
o
C (the set
temp. is 16
o
C). If you want to cancel it, set the temp. as 24
o
C.
So the temp. compensation range is +8
o
C~-6
o
C.
2.2.20 Anti-freezed protection
When compressor has run for over 5 minutes, to prevent indoor evaporator freezing (in cooling/dry mode), if
indoor mid-coil temp. is below -1 degree for over 5 minutes, indoor EEV will close, and compressor will stop.
When indoor mid-coil temp. is over about 10 degree, the unit will be normal.
2.2.21 Overload protection in heating mode
It is valid only in heating mode, if indoor mid-coil temp. is over about 65 degree continuously for 10 seconds,
indoor will stop; while when indoor mid-coil temp. is below 52 degree for 3 seconds, indoor will resume.
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