Mark HCNI 533, Technical Manual

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the compressor running time.
• In defrosting mode, the compressor continues to run, the indoor and outdoor motor will cease
operation, the defrost light of the indoor unit will turn on, and the “ ” symbol is displayed.
• If any one of the following conditions is satisfied, defrosting ends and the machine switches to
normal heating mode:
- T3 rises above TCDE1.
- T3 maintained above TCDE2 for 80 seconds.
- Unit runs for 15 minutes consecutively in defrosting mode.
Evaporator Temperature Protection
When the evaporator temperature exceeds a preset protection value, the compressor ceases
operation.
4.3.5 Auto Mode
• This mode can be selected with the remote controller and the setting temperature can be
changed between 17°C-30°C.
• 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°C
≤ ∆
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.
4.3.6 Drying Mode
• Indoor fan speed is fixed at breeze and can’t be changed. The louver angle is the same as in
cooling mode.
• All protections are active and the same as that in cooling mode.
4.3.7 Forced operation function
Press the AUTO/COOL button, the AC will run as in below sequence:
Forced auto > Forced cooling > Off
•
Forced cooling mode: The compressor and outdoor fan continue to run and the indoor fan
runs at breeze speed. After running for 30 minutes, the AC will switch to auto mode with a
preset temperature of 24°C.
•
Forced auto mode: Forced auto mode operates the same as normal auto mode with a preset
temperature of 24°C.
• The unit exits forced operation when it receives the following signals:
- Switch on.
- Switch off.
- Timer on.
- Timer off.
- Changes in:
- Mode.
- Fan speed.
- Sleep mode.
- Follow me.