INVENTOR U6MRS32-18, Руководство по обслуживанию

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 Product Features 5 
2. Safety Features
Compressor three-minute delay at restart
Compressor functions are delayed for up to ten seconds
upon the first startup of the unit, and are delayed for up
to three minutes upon subsequent unit restarts.
Automatic shutoff based on discharge temperature
If the compressor discharge temperature exceeds a certain
level for nine seconds, the compressor ceases operation.
Automatic shutoff based on fan speed
For Duct type:
If a fault occurs on the air volume regulator or the
regulator enters protection mode, it sends the error
message CF and an instruction to reduce fan speed to the
master. The message and the instruction can be inquired
with the remote controller or the wired controller. (Fault
and protection information are displayed for one minute).
After a fault occurs, the master unit shows the error code
E3 and the fault count for one minute. If the fault occurs
three times, then the fan is unable to resolve the problem
independently. External shutdown by a remote controller,
wired controller, or central controller must be used to clear
the fan fault and fault count. The fan runs normally for 5
minutes while clearing fault count.
0 No malfunction
1 P0 Overcurrent
2 Overpressure
3 Overload
4 Over speed
5 Startup malfunction
6 Lack of phase
7 DC voltage too low
8 Communication fault
9 Parameter fault
10 L3 Current limited
11 L5 Voltage limited
12
Target speed cannot be met
during the static pressure
calculation process
For other types
If the indoor fan speed registers below 200RPM or over
2100RPM for an extended period of time, the unit ceases
operation
Inverter module protection
The inverter module has an automatic shutoff mechanism
based on the unit’s current, voltage, and temperature.
If automatic shutoff is initiated, the corresponding error
code is displayed on the indoor unit and the unit ceases
operation.
Indoor fan delayed operation
• When the unit starts, the louver is automatically
activated and the indoor fan will operate after a period
of setting time or the louver is in place.
• If the unit is in heating mode, the indoor fan is
regulated by the anti-cold wind function.
Compressor preheating
Preheating is automatically activated when T4 sensor is
lower than setting temperature.
Sensor redundancy and automatic shutoff
• If one temperature sensor malfunctions, the air
conditioner continues operation and displays the
corresponding error code, allowing for emergency use.
• When more than one temperature sensor is
malfunctioning, the air conditioner ceases operation.