Product Features
Page 25
• T3 maintained above TCDE2 for 80 seconds.
• Unit runs for 15 minutes consecutively in defrosting
mode.
• If T4 is lower than or equal to -22°C and compressor
running time is more than TIMING_DEFROST_TIME,
if any one of the following conditions is satisfied,
defrosting ends and the machine switches to normal
heating mode:
• Unit runs for 10 minutes consecutively in defrosting
mode.
• T3 rises above 10°C.
The following two conditions apply only to certain models,
see tabel in section 3.1 for details.
Case 1:
• If T3 is lower than 3°C and compressor running time
is more than 120 minutes, at this time, if T3 is lower
than TCDI1+4°C(39.2°F) for 3 minutes, the unit enters
defrosting mode.
• If any one of the following conditions is satisfied,
defrosting ends and the machine switches to normal
heating mode:
• T3 rises above TCDE1+4°C.
• T3 maintained above TCDE2+4°C for 80 seconds.
• Unit runs for 15 minutes consecutively in defrosting
mode.
Case 2:
• If any one of the following conditions is satisfied, the
unit enters defrosting mode
• If T3 or T4 is lower than -3°C(26.6°F) for 30
seconds,Ts-T1 is lower than 5°C and compressor
running time is more than 90min.
• If T3 or T4 is lower than -3°C(26.6°F) for 30
seconds and compressor running time is more than
120min.
• If any one of the following conditions is satisfied,
defrosting ends and the machine switches to normal
heating mode:
• T3 rises above TCDE1+4°C.
• T3 maintained above TCDE2+4°C for 80 seconds.
• Unit runs for 15 minutes consecutively in defrosting
mode.
3.5.5 Evaporator Temperature Protection
When the evaporator temperature exceeds a preset
protection value, the compressor ceases operation.
3.6 Auto-mode
• This mode can be selected with the remote controller
and the setting temperature can be changed between
17°C~30°C.
Case 1:
• In auto mode, the machine selects cooling, heating, or
fan-only mode on the basis of ∆T (∆T =T1-TS).
∆T Running mode
∆T>A Cooling
B℃≤∆T≤A Fan-only
∆T<B Heating*
Heating*: In auto mode, cooling only models run the fan
• Indoor fan will run at auto fan speed.
• The louver operates same as in relevant mode.
• If the machine switches mode between heating and
cooling, the compressor will keep stopping for certain
time and then choose mode according to ∆T.
Case 2:
• In auto mode, the machine selects cooling, heating, or
fan-only mode on the basis of T1,Ts and T4.
• If the setting temperature is modified, the machine
selects a new running function.
3.7 Drying mode
• AC operates the same as auto fan in cooling mode.
• When T1<17°C, the fan speed is lower than 30%, the
unit will operate at 30%.
• Low Room Temperature Protection
• If the room temperature is lower than 10°C, the
compressor ceases operations and does not resume
until room temperature exceeds 12°C.
• All protections are active and the same as that in
cooling mode.
3.8 Sleep function
• The sleep function is available in cooling, heating, or
auto mode.
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