Hitachi NEXT Series User Manual

50
6. STARTUP OPERATION [Startup Operation of the Air Compressor]
② Check the LCD for operating pressures and
temperatures. Verify that: Discharge air pressure
(DIS. PRESS), interstage air pressure (INTSTG. P),
oil pressure (OIL PRES), 1st stage discharge air
temperature (DIS. TEMP 1), 2nd stage discharge air
temperature (DIS. TEMP 2), 2nd stage suction
temperature (2ND SUC. T.) and oil temperature (OIL
TEMP) are within the normal range, as shown in the
Proper Pressure/ Temperature Indications on LCD
table below.
③
Verify that the condensate is discharged intermediately
from the intercooler/aftercooler drain port.
6.1.3 During Operation
㻞㻜㻝㻠䠋㻜㻝䠋㻜㻝㻌㻌 㻝 㻥 㻦 㻜 㻞 㻖
㻼㻾㻱㻿㻿㼁㻾㻱
㻵㻺㼀㻿㼀㻳㻚㻌㻼㻾㻱㻿㻦 㻞 㻤 㼜 㼟 㼕
㻻㻵㻸㻌㻼㻾㻱㻿㻦 㻞 㻞 㼜 㼟 㼕
㻯㻸㼀㻚㻌㻼㻾㻱㻿㻦 㻖 㻖
㻟
㻟
㼜㼟㼕
㼀㻱㻹㻼㻱㻾㻭㼀㼁㻾㻱
㻰㻵㻿㻚㻌㼀㻱㻹㻼㻚㻌㻝㻦 㻞 㻥
㻰㻵㻿㻚㻌㼀㻱㻹㻼㻚㻌㻞㻦 㻟 㻤䢛䠢
㻻㻵㻸㻌㼀㻱㻹㻼㻦 㻝 㻟 㻝䢛䠢
㻯㻸㼀㻚㻌㼀㻱㻹㻼㻦 㻖 㻖 㻖䢛䠢
㻞㻺㻰㻌㻿㼁㻯㻚㻌㼀㻚㻦 㻝 㻝 㻣䢛䠢
㻹㻭㻵㻺㼀㻱㻹㻭㻹㻯㻱
㻴㻾㻚㻌㼀㻻㻌㻹㻭㻵㻺㼀㻦 㻜 㻜 㻜 㻜 㼔
㻖㻖㻖㻖㻺㻱㼄㼀㻌㻹㻭㻵㻺㼀㻦
䢛䠢
UP/
DOWN
+/-
AUTO
MONITOR
MENU
SET
SELECT/WIDE
2
RUNNINGCONTROL
STARTREMOTE
1
FUNC
［×10h］
ALARM
STR
REMOTE
RUNNINGMODE
AUTOSTART
POWER
LOAD
RESET
SHUTDOWN
STOP
MONITOR
UNLOAD STOP
WARNING
During inspection of the operation of the air
relief valve, use the appropriate facial
protection. High pressure air containing dust
particles can cause severe injury.
CAUTION
Ensure that the main motor is properly
greased during the start up commissioning. If
the air compressor has not been operated for
(3) months, grease before restarting.
(
9.4
13
)
① Grease the main motor bearing at once. Refer to the
9.4
13
for the detail.
② Verify that the air compressor has proper rotation.
If rotation is not correct (phase reversal), change 2 of
the 3 wires of the power cable.
③ Verify that the oil pressure rises 18 psi (0.12 MPa) or
greater within ten (10) seconds after starting the air
compressor. If pressure has failed to rise, press the
STOP button and clean the oil strainer. And/or
regulate the oil pressure by oil relief valve.
(
3.7.2)
④ In the case of the fixed speed type, switch to full load
operation within 15 seconds, and for the V type,
switch in approx. 10 seconds.
⑤ Raise the pressure step by step as illustrated below.
[Rear View]
②
③④
①
RUNNINGCONTROL
運転管理
RUNNINGMODE
ALARM
警 報
運転状況
故 障
LOAD
SHUTDOWN
REMOTE
負 荷
遠 方
電 源
POWER
起動待ち
AUTOSTART
停 止
STOP
運 転
START
1
2
記 憶
遠 方
REMOTE
表示切替／
ワイドモード
STR
機 能
FUNC
リセット
RESET
SELECT/WIDE
UNLOAD STOP
DIS.PRESS：１００ｐｓｉ
INTSTG.P：２２ｐｓｉ
OILPRESS：２２ｐｓｉ
CLTPRESS：＊＊ｐｓｉ
Discharge pressure (psi)
100
90
75
60
45
30
15
0
Pressure Raising Pattern
for the rated
discharge pressure
102 psi (0.70MPa)
Time
0.5hr 1hr 1.5hrs 2hrs
Method of Raising Pattern:
During startup operation, raise the discharge pressure by
following these steps. 1.) After starting the air compressor,
operate at 30psi (0.20MPa) for 30 minutes with the discharge
stop valve completely open. 2.) Raise the pressure 15 psi
(0.1MPa) (close the discharge stop valve) every 15 minutes
until the pressure reaches the rated pressure. During the
startup operation, perform this method without any failures.
6.1.2 Starting
① Fully open the discharge stop valve, and press the
START button.

Hitachi NEXT Series Specifications

General

Brand	Hitachi
Model	NEXT Series
Category	Air Compressor
Language	English