7.4.3 The fan motor operating in heat pump and cooling mode (see Fig. B).
• If T4≥T03 and lasts for 1 minute, the fan motor will operate at low speed.
• If T4≤T04 and lasts for 1 minute, the fan motor will operate at high speed.
• If T04<T4<T03:
o If fan motor was initially off, it will operate at high speed.
o If fan motor was initially on, it will keep operating at initial speed.
7.4.4 The high temperature protection of evaporator at heat pump and cooling mode.
• If T2>TE7, the unit will turn the protection of compressor off, and stop this protection when
T2≤TE9.
• If T2>TE8, it will turn the protection of fan motor off, and stop this protection when T2≤TE9.
• If T2>TE15, fan motor will operate at low speed by force, then stop, and determine the high or low
speed according to T4.
6.4.5 At the fan only mode, the fan will keep operating and the compressor/fan motor/heater
will stop operating.
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