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4.1.8 Emergency switch
When the EMERGENCY switch is pressed one time, COOLING mode is selected and if it pressed again within
3s, HEATING mode selected, while press once again, the unit will be switched off.
When the remote controller out of function, batteries lost power, for example, the EMERGENCY button in the
front of indoor unit can be used for function test.
NOTE: Do not press the EMERGEMCY switch during normal operation.
4.1.9 Auto-restart function
While air conditioner is operating in one mode, all of its operation data, such as working mode, preset
temperature etc. would be memorized into IC by main PCB. If power supply cut off due to reasons and recover
again, the AUTO-RESTART function will set synchronously and the air conditioner would work at the same
mode as before.
Note: The function setting:
Within 3 min while power on unit, set the unit on cooling mode, set temperature 30℃, and mid fan speed, press
the ECO button 10 times within 8s, the AUTO-RESTART will be activated.
4.1.10 Over heat protection for Heating mode
1). If:
a. IPT≥62℃, compressor and ODU Fan stop working for over heat protection.
b. IPT≥54℃, ODU Fan stops working. IDU fan motor and compressor keeps original state.
2). When IPT≤48℃, the compressor and ODU Fan restart works to quit overheat protection.
3). If unit have 6 times Overheat Stop-working Protection continuously, or tested IPT ≥ 62℃ for 3mins
continuously while compressor stop working, this protection can't be recovered unless press ON/OFF button,
and unit will show failure code "P7".
Note:
In the process of operation, once the compressor runs continuously more than 6 min, the counter of overheat
stop-working protection will be reset to zero and start a new counting process.
The failure and times for protection will eliminate immediately once the unit to be switched off, on fan mode or
changed to be heating mode from others.
4.1.11 Complementary
4.1.11.1 Energy saving (ECO)
Function effective on Cooling and Heating mode only.
On cooling mode, the set temperature range from 26℃(
on heating mode, from 16℃(
4.1.11.2 TURBO
Function effective on Cooling, Heating, Fan and Auto modes, and fan speed operates on highest.
4.1.12 Calibration Test Mode:
Within 3 min while indoor unit switch on, and set the unit as:
1) Cooling mode.
2) set temperature to 30℃.
3) Mid-fan speed.
by press ECO button 7 times within 8s, the unit will change to calibration test mode, and the buzzer sounds 3
times.
Air Conditioner Service Manual
℉) to 25℃(
℉).
61
77
℉) to 31℃(
℉).
79
88
14
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