21
9.3 Protection
9.3.1 Three Minutes Delay at restart for compressor.
9.3.2 Temperature protection of compressor top.
9.3.3 If the temperature of compressor top is too high(higher than 115
ºC
and the Over-load Protector is cut, the units
stop. When the Over-load Protector restore and close(lower than 100
ºC
), the compressor will restart( in this case
the compressor is restricted by Three Minutes Delay protection.
9.3.4 Temperature protection of compressor exhaust.
If the exhaust temp. of compressor is higher than 115
ºC
and lasts for 5 seconds, the compressor stops and does
not resume until the exhaust temp. is lower than 90
ºC.
9.3.5 Inverter module Protection, Inverter module Protection itself has a protection function against current, voltage and
temperature. If these protections happened, the the corresponding code will display on indoor unit LED.
9.3.6 Sensor protection at open circuit and breaking disconnection
9.3.7 Fan Speed is out of control. When Indoor Fan Speed is too low (lower than 300RPM for 60 seconds), the unit
stops and LED displays failure information and can’t return to normal operation automatically.
9.3.8 Cross Zero signal error warning. If there are 20 alternations of Cross Zero signals are incorrect, the unit stops and
LED displays failure information. After resuming, the motor rotates again. The spacing of Cross Zero signal is
6-13ms.
9.3.9 Indoor fan delayed open function
9.3.10 For all modes, when the units are turned on, the indoor fan can operate 10 seconds after the action of louver.
9.3.11 Compressor preheating function.
1) Preheating permitting condition:
If T4(outdoor ambient temperature
)
<
3
ºC
and the machine connects to power supply newly or if T4
<
3
ºC
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
ºC
or user turns on the machine and compressor runs, preheating function will stop.
9.3.12 Compressor heating cable
If outdoor temperature(sensed by outdoor thermostat) is lower than 5
ºC
, the thermostat closes and compressor
heating cable begins to work. If outdoor temperature is higher than 15
ºC
, the thermostat opens and compressor
heating cable stopping working.
Содержание RVHC-09
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Страница 8: ...5 3 Dimension 3 1 Indoor Unit RVKC 09 RVKC 12...
Страница 9: ...6 3 2 Outdoor Unit RVJC 09 RVJC 12 762 275...
Страница 11: ...8 5 Refrigerant cycle diagram...
Страница 12: ...9 6 Wiring diagram 6 1 Indoor Unit RVKC 09 RVKC 12...
Страница 13: ...10 6 2 Outdoor Unit RVJC 09 RVJC 12...
Страница 34: ...31 LED1 LED4 LED5 LED6...
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