AUX Air Conditioner Service manual
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Time of turning off can only be set when the machine is on. It cann’t be set when the machine
is off. When it comes to the set time. both inside and outside unites stops operation.
7.3 Set time operation
Time of turning on can only be set when the machine is off. It cann’t be set when the machine is on.
When it comes to the set time.Both of the inside and outside unites starts operation.
8. Emergency switch
Turn the machine on by pressing the on/off button. The air conditioner control get into automatic
operation.and the throttle is automatic. The temperature is designed for 24℃.wind speed is strong.at
the same time the operation indicator flickers once a second. 20 seconds later. it operates according to
selected mode. Another press makes it turned down. During this period. remote control signal can be
received to operate.
9. Different kinds of protection function
9.1. Temperature control function（overheating protection）.
9.1.1 This function is only valid to heating model.and invalid to other modes.
9.1.2 For two indoor unit with a same outside unit. as long as one of them has a T e ≥ 57℃ for 10
seconds. the outdoor unit is closed.
9.1.3 When the two inter-engines with the same outside engine. at the same time. both have a T e＜
52℃.outdoor fan get back to normal operation.
9.1.4 When the T e≥64℃ for more than 10 seconds. the compressor stops
9.1.5 When the compressor stops for 3 minutes. if T e<52℃. it gets back to normal operations.
9.2. Indoor coil freeze prevent function
9.2.1 This function is only at refrigeration and dehumidify modes.and invalid to other modes.
9.2.2 When T e ≤-2℃ for more than 2 minutes.the compressor should stop running. and indoor fan
operates according to designed wind input.
9.2.3 When the compressor stops operation.it cannot be restarted until the indoor coil temperature rise
to≥7 ℃ or it's turned off for more than 6 minutes.
9.3 It requires that the compressor cannot be restart within 3 mins after its shutdown(except in the
heating function and defrosting function)
9.4 Short circuiting or open circuit protection function of the temperature probe.
9.4.1 After the machine is turned on. when the signal of indoor temperature sensor is tested abnormal.
if a heating signal is received. then press start-up to start heating without stopping the machine. If a
cooling signal is received. then press start-up to start cooling without stopping the machine. If a
dehumidifying signal is received. then press start-up to work for 8 minutes and stop for 3 minutes. to
dehumidify with low wind speed. Automatic mold of remote signal is not accepted. and automatic auto
key to start up is not valid. At the same time.a strobolamp flickers（or a digital pipe ）to indicate
corresponding malfunction. }
9.4.2When the deviation of signal of indoor coil temperature sensor is detected. freeze the prevention
function. wind protection and overheat protection function get into masked state. In the heating mode.
When compressor is on. delay 30s to open indoor fan. with a set wind speed. When compressor is off.
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