mundoclima MU-WZ Series, Руководство по обслуживанию

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10.1 Main technical index
PCB h ld b di ith th f ll i diti
10. Description of software operation
PCB should be according with the following conditions:
• Measured from the receiver
，
the receiving distance of remote control
≥
8m
，
receiving
angle
≤
60
°
cone angle
；
• Discrepancy of temperature control
≤
±
1
℃；
• Discrepancy of time control
≤
5min/24h
；
• Discrepancy of fan speed
：±
10rpm
；
R d l AC230
±
20% 0H • Rated power supply
：
AC230
±
20%
，～
50Hz
；
• PCB should accord with RoHS.
10.2 Definition
• RT
：
room temperature.
• IPT
：
indoor coil temperature.
• ST
：
setting temperature
，
range 18
～
30
℃
• OPT
：
outdoor coil temperature.
• PTC data
：
R25=5.OK
±
1% B25/50=3470
±
1%
10.3 Mode introduction
10 3 1 Auto mode 10.3.1 Auto mode
After running the unit by ON/OFF key or choose the auto running mode by remote control, it will fix
its running mode by judging room temperature (see below table):
Indoor temp. Indoor temp.
≤
20
℃
20
℃＜
indoor
＜
25
℃
indoor
≥
25
℃
Running mode
heating
（
cooling &
heating
）
fan
（
cooling only
）
fan
（
cooling & heating
）
dehumidify
（
cooling
only
）
cooling
a. When Auto mode is selected, unit would check room temperature first and work with fixed mode as
above accordingly. Every 6 minutes, unit would check room temperature again, running mode would be
changed according with update room temperature.
b If working mode is changed by remote control unit has 3 minutes delay protection for compressor
（
cooling only
）
only
）
Standard fixed
setting temperature 20
℃
22
℃
25
℃
b. If working mode is changed by remote control, unit has 3 minutes delay protection for compressor.
c. Fan speed selection: work with setting speed.
d. Unit has protection function during Auto mode, including 3 minutes delay function, Anti-cold function
before heating, Over heating protection during heating function, Anti-frozen during cooling mode, and
E1,E2,E3,E4 protection.