Electrical Control Function
Electrical Control System 169
T 1 -T d
L
(H + -L )*0.4+ L
(H + -L )*0.6+ L
H+
(H + -L )*0.8+ L
(H + -L )*0.6+ L
(H + -L )*0.2+ L
1.3.3.3 Defrosting Control：
Conditions for defrosting:
----the unit enters the defrosting mode according to the value of T3 and T4 as well as the compressor
running time.
Defrost Stop Conditions:
If any one of the following conditions is satisfied, defrosting ends and the unit returns to heating mode.
----T3 rises above than TCDE1℃.
----T3 remains at TCDE2℃ or above for 80 seconds.
----The machine runs for 10 consecutive minutes in defrosting mode.
1.3.3.4 High Evaporator Coil Temperature T2 Protection:
T E sto p
T2
R e s u m e
O ff
D e c re a s e
T E do w n
T E n o rm
H o ld
Off: Compressor stops.
Decrease: Decreases the running frequency.
Hold: Maintains the current frequency.
Resume: No limitation is applied to frequency.
.
1.3.4 Auto-mode
You can choose this mode with the remote control and adjust to temperature to between 17-30.
In auto mode, the machine chooses cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts).
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