(WPEVKQPCPF%QPVTQN
Speed
Function
AMB.
Mode
ON/OFF
2. When compressor is stopped, if it’s detected that the low pressure switch is broken for 30s successively, the complete unit will stop
running. Meanwhile, E3 will be displayed and the unit can’t resume running automatically. Only after restarting up the unit and the low
pressure switch is resumed, the unit can resume sunning.
3. When compressor hasn’t been start up after energization each time, if it’s detected that the low pressure switch is broken for 1s
successively, all loads won’t be turned on after turning on the unit, and E3 will be displayed on the display screen. E3 will still be
displayed after restarting up the unit. Only when the low pressure switch is resumed, E3 will be cleared and then all loads will run
normally.
4. In compulsory cooling or heating mode, it will begin to detect the signal of low pressure switch after compressor has started up for
2mins. When it’s detected that the low pressure switch is broken for 1s successively, the complete unit will stop running and E3 will be
displayed. During compulsory heating, if outdoor ambient temperature
̰
0
ć
, the detection for low pressure switch will be shielded.
Correct disposal method: after cutting off the power, insert the shielded wire again to make sure that the shielded wire is connected
firmly and then restart up the unit.
4. High temperature protection for discharge pipe
After the compressor is started up, if it’s detected that the discharge temperature is too high for 30s successively, the unit will stop
running when indoor ambient temperature is reached to setting temperature. When compressor has stopped for 3mins and discharge
temperature resumes to normal range Tdischarge <90
ć
, the complete unit will resume running.
If above protection is occurred for twice successively, the complete unit can’t resume running and E4 will be displayed. When restarting
up the unit and Tdischarge <90
ć
, the unit will run at setting mode.
If turning on the unit to turn to heating mode or switching to heating mode from other modes, discharge protection will be shielded for
1min when compressor is started up for the first time.
5. Indoor high temperature resistance protection
In heating mode, when it’ s detected that the evaporator tube temperature is too high, outdoor fan will stop running; when evaporator
tube temperature resumes to normal range, outdoor fan will be started up.
6. Overcurrent protection
After compressor is started up, if it’s detected that the current is exceeds I
0 (
I
0
=25A) for 3s successively, the unit will stop running when
Indoor ambient temperature is reached to setting temperature. After compressor has stopped for 3mins, the unit will resume original
running status. If protection times exceeds 6 times, indicator will blink and display E5 and the unit can’ t resume original running status.
The unit can only resume running after restarting up the unit.
7. Malfunction of temperature sensor
Under ON status, it will detect the malfunction of indoor tube temperature (exclude defrosting period and the period when defrosting is
finished for 5mins) and outdoor discharge temperature sensor (in heating mode, it starts detecting the malfunction after compressor has
started up for 1min; the malfunction won’ t be detected when compressor is stopped). It ’ s the malfunction when they are short circuit
or broken circuit for 30s successively. When there’ s malfunction of temperature sensor, the complete unit will stop running. Meanwhile
the indicator will blink and display the corresponding error code. Malfunction of temperature sensor won’ t shield the button and remote
controller.
8. Malfunction and protection code
E1: high-pressure protection of system;
E3: low-pressure protection of system;
E4: high temperature protection for discharge pipe;
E5: overcurrent protection;
F1: malfunction of indoor ambient temperature sensor;
F2: malfunction of indoor tube temperature sensor;
F3: malfunction of outdoor ambient temperature sensor
F4: malfunction of outdoor tube temperature sensor
F5: malfunction of discharge temperature sensor
When multiple malfunctions are occurred simultaneously, each malfunction error will be displayed for 3s and they be will displayed in
cycle.
6 Button
When remote controlling by remote controller:
1.If the display mode for remote controller is the heating mode and A/C is the cooling only type, A/c won’t receive other signal except
the signal for turning off the unit.
2.If pressing the invalid button on remote controller, the buzze r will still give out a sound but the function won’t be carried out.
There are those buttons on the panel: ON/FF button, mode button, ambient setting button, ▲ button, ▼button, function button, fan
speed button.
Display screen:
