49
6. STARTUP OPERATION [Startup Operation of the Air Compressor]
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.
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.
②
④
③
RUNNING CONTROL
RUNNING MODE
ALARM
LOAD
SHUTDOWN
REMOTE
POWER
AUTO START
STOP
START
1
2
REMOTE
STR
FUNC
RESET
SELECT/WIDE
UNLOAD STOP
①
[Rear View]
DIS. PRESS: 0psi
INTSTG. P: 0psi
OIL PRESS: 0psi
CLT PRESS: **psi
Water-Cooled
Proper Pressure/Temperature Indications on LCD
LCD Indication
Unit
DSP-90A6N, DSP-90W6N
DSP-110A6N, DSP-110W6N
DSP-90VA6N, DSP-90VW6N
DSP-110VA6N, DSP-110VW6N
Operating State
Working Pressure
−
Loading
Unloading
Loading
Purging
Discharge Air Pressure
100psi (0.69MPa)
psi
(MPa)
100 (0.69) or less 85 (0.59) to 100 (0.69)
103 (0.71) or less
125psi (0.86MPa)
125 (0.86) or less 110 (0.76) to 125 (0.86)
128 (0.88) or less
Interstage Air Pressure
psi
(MPa)
25 to 38
(0.17 to 0.26)
-11 to 0
(-0.08 to 0)
25 to 42
(0.17 to 0.29)
3 to 15
(0.02 to 0.10)
Oil Pressure
psi
(MPa)
* 16 to 26
(0.11 to 0.18)
*
13 to 26 (0.09 to 0.18)
(Freq. 45Hz or higher)
7 to 23 (0.05 to 0.16)
(Freq. less than 45Hz)
1st-Stage Discharge Air Temperature
100psi (0.69MPa)
℉ (℃)
426/408 (219/209) or Less
435/408 (224/209) or Less
125psi (0.86MPa)
426/408 (219/209) or Less
435/408 (224/209) or Less
2nd-Stage Discharge Air Temperature
100psi (0.69MPa)
℉ (℃)
435/417 (224/214) or Less
435/417 (224/214) or Less
125psi (0.86MPa)
489/471 (254/244) or Less
489/471 (254/244) or Less
Oil Temperature
℉
(℃)
153/147 (67/64) or Less
153/147 (67/64) or Less
2nd-Stage Suction Air Temperature
℉
(℃)
153/147 (67/64) or Less
153/147 (67/64) or Less
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