55
Trouble
The main motor rotates but
the pressure does not rise.
Is the belt or coupling
correctly connected and is the
air end properly rotating?
Is the inhalation valve
completely open?
Does the sol valve sound
when it opens.
Is the pressure indication
of Micom indicating 0 bar
and higher?
The compressor needs
inspecting in detail. Pleae
contact your dealer or our
A/S service center.
Inhalation valve fault
The belt is cut off
The coupling is
separated
Abnormal sol valve
operation signal
Abnormal sol valve
Checklist
Potential trouble causes
N
N
Pressure sensor fault
N
Y
Y
Y
Y
N
GRH3 star-delta
User’s Manual
Summary of Contents for GRH 3 series
Page 1: ...User s Manual of Compressor...
Page 60: ...60 Hanshin 8 Control System 8 1 Compressor Configuration Layout 8 Control System...
Page 62: ...62 Hanshin 8 Control System 2 Micom Controller GRH3 50A 100A...
Page 63: ...63 GRH3 25A 30A 35A 50A Star delta GRH3 star delta User s Manual...
Page 64: ...64 Hanshin 8 Control System GRH3 75A 100A Star delta...
Page 75: ...75 2 GRH3 50A GRH3 star delta User s Manual...
Page 76: ...76 Hanshin 13 Outside Drawing by Models 3 GRH3 75A 100A...
Page 77: ...4 GRH3 75W 100W GRH3 star delta User s Manual 77 Appearance...
Page 79: ......