Midea MCH2U-18PHH2, Руководство по обслуживанию

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----If the temperature increase and T5
≧
110
℃
( 230
℉
), decrease the frequency to a lower
level every 2 minutes till to F1.
---If T5
≧
115
℃
( 239
℉
) for 10 seconds, the
compressor stops and then restart untill
T5<90
℃
(194
℉
).
6.3.3 Fan Speed Malfunction
---- If outdoor fan speed is lower than
100RPM or higher than 2400RPM for 60
seconds or more, the unit stops and LED
displays
E8
failure code.
6.3.4 Inverter Module Protection.
---- The inverter protection module ensures
that faults related to current, voltage, or
temperature does not damage the inverter.
If these protections are triggered, the A/C
unit stops and the LED displays the failure
code.
The unit restarts 3 minutes after the
protection mechanism has turned off.
6.3.5 Low Voltage Protection
V O L T A G E
N o lim it
V O L T _ LT M _ F R E Q 1_ A D D
V O L T _ LT M _ F R E Q 2 _ A D D
Note: If low voltage protection triggers and
voltage is not restored to normal within 3
minutes, the protection remains active
even after a machine restart.
6.3.6 Compressor Current Limit
Protection
The temperature interval for the current limit
is the same as the range of the T4
frequency limit.
Cooling mode:
CoolReturnI The difference between
current limit
and shutdown current
CoolT4Zone5I Cooling T4 ≥
50
℃
current
limit value
CoolT4Zone4I Cooling 49
＞
T4
≥
45
℃
current limit value
CoolT4Zone3I Cooling 44
＞
T4
≥
41
℃
current limit value
CoolT4Zone2I Cooling 40 ﹥
T4
≥
33
℃
current limit value
CoolT4Zone1I Cooling 32 ＞
T4
℃
current
limit value
CoolStopI Cooling stop protection
current value
Heating mode:
℃
CoolT4Zone5I
50
49
45
CoolT4Zone4I
44
41
40
CoolT4Zone3I
33
32
CoolT4Zone2I