Proper Pressure/Temperature Indications On Lcd; Stopping - Hitachi NEXT Series Instruction Manual

Oil-free rotary screw air compressor
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Proper Pressure/Temperature Indications on LCD

LCD Indication
Operating State
Discharge Air Pressure
Interstage Air Pressure
Oil Pressure
1st-Stage Discharge Air Temperature
2nd-Stage Discharge Air Temperature
Oil Temperature
2nd-Stage Suction Air Temperature
Note) * The oil pressure may exceed 26 psi (0.18 MPa) temporarily when starting. The oil pressure may exceed 26 psi (0.18 MPa) temporarily
when PQ wide mode ON for Vtype. These are normal.

6.1.4 Stopping

DIS. PRESS:             0psi
INTSTG. P:               0psi
OIL PRESS:              0psi
CLT PRESS:         **psi
6. STARTUP OPERATION [Startup Operation of the Air Compressor]
Unit
Working Pressure
100psi (0.69MPa)
100 (0.69) or less 85 (0.59) to 100 (0.69)
psi
(MPa)
125psi (0.86MPa)
125 (0.86) or less 110 (0.76) to 125 (0.86)
psi
(MPa)
psi
(MPa)
100psi (0.69MPa)
℉ (℃)
125psi (0.86MPa)
100psi (0.69MPa)
℉ (℃)
125psi (0.86MPa)
℉ (℃)
℉ (℃)
RUNNING CONTROL
RUNNING MODE
REMOTE
POWER
ALARM
LOAD
RESET
AUTO START
FUNC
SHUTDOWN
REMOTE
SELECT/WIDE
START
STOP
STR
UNLOAD STOP
[Rear View]
DSP-90A6N, DSP-90W6N
DSP-110A6N, DSP-110W6N
Loading
Unloading
25 to 38
-11 to 0
(0.17 to 0.26)
(-0.08 to 0)
* 16 to 26
(0.11 to 0.18)
426/408 (219/209) or Less
426/408 (219/209) or Less
435/417 (224/214) or Less
489/471 (254/244) or Less
153/147 (67/64) or Less
153/147 (67/64) or Less
① Press the UNLOAD STOP button to stop the air
compressor. Operation stops when the air end and
the air piping have dried for 5 minutes. To stop the
compressor immediately without unloading, press
the STOP button.
② Check the LCD for pressures, and verify that:
Oil pressure, interstage air pressure, 0 psi (0 MPa)
or 1 psi (0.01 MPa) depending on your operating
conditions).
③ Check the condensate drain discharge from the
control line filter by checking the sight glass on the
control line filter. (Fixed speed type)
④ Close the stop valve.
Water-Cooled
⑤ Open the water drain valve. Do not fail to drain the
cooling water specifically winter season because the
remaining water may be frozen inside and as a result
the casing and/or coolers may be burst.
DSP-90VA6N, DSP-90VW6N
DSP-110VA6N, DSP-110VW6N
Loading
Purging
103 (0.71) or less
128 (0.88) or less
25 to 42
3 to 15
(0.17 to 0.29)
(0.02 to 0.10)
* 13 to 26 (0.09 to 0.18)
(Freq. 45Hz or higher)
7 to 23 (0.05 to 0.16)
(Freq. less than 45Hz)
435/408 (224/209) or Less
435/408 (224/209) or Less
435/417 (224/214) or Less
489/471 (254/244) or Less
153/147 (67/64) or Less
153/147 (67/64) or Less
49

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