Midea M2OA-18HRDN1, Руководство пользователя

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MCAC-HTSM-2007-11 Control function
Control System 143
1.1.4.8 No. 1 opening degree of electronic expansion valve:
Opening degree equals the display data times 8
1.1.4.9 No. 2 opening degree of electronic expansion valve:
Opening degree equals the display data times 8
1.1.4.10 No. 3 opening degree of electronic expansion valve:
Opening degree equals the display data times 8
1.1.5 Protection
1.1.5.1 3 minutes delay at restart for compressor.
1.1.5.2 Discharge temperature protection of compressor, compressor stops when the temp. of discharge is
more than 115
°
C and last out 5 s. compressor runs when the temp. of discharge is less than 90
°
C.
1.1.5.3 Temperature protection of compressor top, compressor stops when the temp. of top of compressor
is more than 120
°
C, compressor runs when the temp. of top of compressor is less than 105
°
C.
1.1.5.4 When AC voltage
≥
270V for 30 seconds, Outdoor Unit stops operation and alarms. When AC
voltage
≤
260V for 30 seconds, Outdoor Unit resumes operation.
1.1.3.5 Inverter module Protection , Inverter module Protection itself has a protection function against
current, voltage and temperature.
1.1.5.6 Sensor protection at open circuit and breaking disconnection
1.1.5.7 Fan Speed is out of control. When Indoor Fan Speed is too high(higher than High Fan+300RPM)or
too low(lower than 400RPM), the unit stops and LED displays failure information and can
’
t return to
normal operation automatically.
1.1.5.8 Cross Zero signal error warning. If there is no Cross Zero signals in 4 minutes, the unit stops and
LED displays failure information and can
’
t return to normal operation automatically. (only available
for wall mounted indoor unit)
1.1.5.9 Current protection: When the current is more than 20A, the compressor stops.
1.1.5.10 Outdoor condenser high temperature protection: Under cooling mode, if T3>65
°
C for 3 minutes, the
compressor will stop. When T3<52
°
C, the protection is not valid.
1.1.5.11 Outdoor low temperature protection: If the outdoor temperature is lower than -15
°
C for 1 hour, the
compressor and fan motor will stop. If the outdoor temperature is higher than -12
°
C for 10 minutes
and the compressor stops operation for 1h, or the outdoor temperature is higher than 5
°
C for 10
minutes, then restart and enter into the prior operation mode.
1.1.5.12 Compressor pre-heating function: When the outdoor temperature is lower than 3
°
C and the
compressor stops operation for more than 3 hours, or the outdoor temperature is lower than 3
°
C
and the power is just put on, the compressor enters into pre-heating condition. When outdoor temp.
is more than 5
°
C or user operate it, pre-heating condition will finish.
1.1. 6 Fan-only mode
Fan speed is high/mid/low/ Auto
1.1.7 Cooling mode
1.1.7.1 Indoor fan keeps running, fan speed can be set in high/mid/low/ Auto:
1.1.7.2 Auto fan at cooling mode: (T=Indoor Temp.-Setting Temp.)
Condition Indoor fan speed
Room temp. up
T<1.5
°
C
Low
1.5
°
C
<T<4
°
C
Mid.
T>4
°
C
High
Room temp. down
T> 3
°
C
High
1
°
C
<T<3
°
C Mid.
T<1
°
C
Low