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Part7. Electric control functions
1. Performance Index
No. Item Index
1 Applicable Voltage Range 165-253V~, 343-418V~
2 A/C Frequency 50Hz
3 Working environment temperature -7°C- +45°C
2. Main Parts Introduction
2.1 Indoor Fan
High speed and low speed.
Breeze speed for anti-cold air.
2.2 Outdoor Fan
High speed and low speed.
Remark : some model just have one speed.
2.3 Buzzer
2.3.1 It will buzz when its driving port in the main chip outputs high level.
2.3.2 It will buzz once when the main frame receives remote start-up signal.
2.3.3 It will buzz once for 1 second when receiving turn-off signal.
2.3.4 It will buzz for 0.5 second once receiving other signal.
2.4 Indicator
2.4.1 There are 4 indicators: operating indicator, timer indicator, water level warning indicator, defrosting
indicator and pre-heating indicator (wind-delivery indicator for cooling-only A/C).
2.4.2 LED indicates errors when protection is in effective.
2.5 Four-way Valve
It is controlled by relays.
2.6 Condensate Pump
It is controlled by relays.
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