Working manual Silent 7300H
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3.External fan working condition:
In the cooling mode, the external fan will turn in synch with the compressor.
4. Internal fan working condition:
a) The internal fan rotation speed can be set to high, medium, low and
automatic.
b)When automatic speed is selected, the internal fan will turn according to
the following conditions:
Tr≧Ts+4°C, high speed ventilation;
Tr≧Ts+2°C e ＜Ts+4°C, medium speed ventilation;
Tr＜Ts+2°C, low speed ventilation.
5)Anti-freeze protection in the cooling mode
a) In the cooling mode, if the compressor is running and Tp (Evaporator
Probe Temperature) is lower than or equal to -2°C for three minutes, the
anti-freeze protection system is operated. The compressor and external
fan will stop, and the internal fan will turn at the pre-set ventilation speed.
b) In the anti-freeze protection mode, when Tp≥6°C, the protection system
stops, the fan will turn according to its original operating mode, while the
compressor and external fan will restart (after the required 3-minutes’
safety delay).
6) Protection in case of failure to cool ( error E4).
After 5 minutes of continuous compressor operation, the evaporator
probe temperature must be lower than the ambient temperature by 3°C. If
the temperature difference cannot be achieved during the first minute of
continuous compressor operation, the temperature display begins to
flash. If after 5 more minutes of compressor operation the temperature
difference is not lower than 3°C, the conditioner goes off and the display
unit reads error code “E4”.
HEATING MODE
1) Temperature adjustment range: 16°C-31°C
2) Compressor operating conditions in the heating mode:
Tr: Vehicle Inside Temperature
Ts: Selected Temperature
When Tr≤Ts-1°C, the compressor and external fan will start.
When Tr≥Ts+1°C, the compressor and external fan will stop;
