18SEER VariableSpeed R410A Brochure

High Reliability
Wide Operation Voltage Range
Comprehensive Protection
Strong Anti-corrosion
Moisture Resistance and Damp-proof
This system can still operate reliably even under damp
or wet conditions, thanks to both the damp-proof
design of the electric box and the damp-proof oil that
coats the control board.
Humidity-status tests (working condition: 30/29)
and rainfall tests (full-range and severe rainfall on the
entire unit) have been taken to the system. Moisture
resistance grade is IP24.
High/low pressure protection
When suction pressure is too low or discharge
pressure is too high, compressor will stop, and unit
displays a malfunction code.
Over current protection
Once the current of the compressor is higher than the
normal level, compressor will stop and the unit will
display a malfunction code.
Reverse (open) phase protection
Once the phase sequence of power supply is
incongruent or the phase is absent, unit will shut o to
protect itself from damage.
Overload protection
Compressor has its own overheat protection. Once the
temperature of compressor is higher than allowable
level, compressor will stop and only when temperature
recovers, compressor will restart.
Discharge high temperature protection
Once the discharge temperature of the compressor is
higher than allowable value, compressor will stop and
the unit will display a malfunction code.
Temperature sensor alarm
Once temperature sensor is o or short-circuited,
system will indicate the error code and give an alarm.
Anti-corrosive
The outer case of outdoor unit is made of painted
steel and galvanized to prevent corrosion and rust
eectively.
It passed a 1000-hour test in salt mist and proved to
be corrosion-proof.
5
The unit can safely operate within 187~254V.
Safe Operation Range
187 V
254 V
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