Problems with starting the turbine?
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After a start signal is given indoors, what could be the reasons why the outdoor unit fails to start rotating?
1. Signal transmission issue; if it has been tested in conjunction with other components, this issue can be ruled out； 2. The large on-site inlet valve is not open, so it’s useless for the control valve to open even when a signal is sent ； 3. The opening degree of the intake valve is insufficient; although a starting torque has been applied, there is a minimum flow rate required for starting. If the opening degree of the intake valve is below this minimum value, the rotor will not rotate, and it is necessary to verify this ； 4. The unit is jammed ； 5. The unit is pressurized, which is equivalent to starting under load, but starting under load was not taken into account during the setup. These are my personal views for now; I hope they can help you deal with the issues.