Zibro S 3025, Руководство по обслуживанию, Страница: 26 / 40

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It will take 3 minutes every time when compressor starts.
It will take only 1 minute when the unit is powered on at first time.
9.3.4 Temperature sensor protection at open circuit or short circuit.
9.3.5 Protection of indoor fan speed.
When indoor fan speed is too low (lower than 300rpm for 50 seconds), the unit will stop and LED display error
code and can’t return to normal operation automatically.
9.3.6 Cross Zero signal error warning.
If there are no Cross Zero signal or the alternation of Cross Zero signal is not correct, the unit will stop and LED
display error code .
9.3.7 Inverter module Protection.
Inverter module has a protection function against current, voltage and temperature. If these protections happened,
the unit will stop and LED display error code.
9.3.8 Indoor fan delayed open function.
When the unit is turned on at all modes, the indoor fan will operate 10 seconds later than the action of louver.
9.3.9 Compressor preheating function.
1) Preheating permitting condition:
If T4(outdoor ambient temperature) 3 and the machine connects to power supply newly or if T4 3
and compressor has stopped for over 3 hours, the compressor heating cable will work.
2) Preheating mode:
A weak current flows through the coil of compressor from the wiring terminal of compressor, then the
compressor is heated without operation.
3) Preheating release condition:
If T4 5 or user turns on the machine and compressor runs, preheating function will stop.
9.4 Fan-Only Mode
9.4.1 Temperature setting function is disabled, and no setting temperature display.
9.4.2 In this mode, the action of louver is the same as in cooling mode.
9.4.3 The action of auto fan in fan-only mode is the same as auto fan in cooling mode with 24 setting temperature.
9.5 Cooling Mode
9.5.1 After starting, the operation frequency of compressor submits to following rule.
T1 – 24
medium
3.5
3.0
1.5
1.0
high
low