Hitachi NEXT Series - Page 18

16
Part or Item Action Category Type Remarks
Control line fi lter element
Replace
○
Fixed
Oil fi lter (secondary)
Replace
●
Fixed / V
Consumable parts - Suction throttle valve
Replace
●
Fixed
※
Seal washer - Suction thorottle valve
Replace
●
Fixed
※
Seal gasket - Suction thorottle valve
Replace
●
Fixed
※
Blowoff solenoid valve (1) (2)
Replace
●
V
Consumable parts - Oil Pump
Replace
●
Fixed / V
Check valve
Replace
●
Fixed / V
Solenoid valve - Intercooler/ Aftercooler condensate
Replace
●
Fixed / V
Check valve & strainer- Intercooler condensate
Replace
●
Fixed / V
Check valve - Control line
Replace
●
Fixed
DCBL Controller
Check
▲
V Clean the fi n and duct.
Controller fan (1), DCBL controller
Replace
●
V
Cooling fan for fan inverter
Replace
●
Fixed Clean the fi n (Air-cooled type)
Cooling fan for control panel
Replace
●
Fixed / V Except 45/55kW fi xed speed type
Relay (Drain solenoid valve)
Replace
●
Fixed / V
※When the power-saving operation is used, the parts need to be replaced every 2 years.
Part or Item Action Category Type Remarks
Airend (1st-stage, 2nd-stage)
Replace
●
Fixed / V A whole airend is replaced with a new
Main motor bearing
Replace
●
Fixed / V
Fan motor bearing
Replace
●
Fixed / V Air-cooled type
Demister - Drain separator
Replace
●
Fixed / V
3-Way solenoid valve & capacity control system
Replace
●
Fixed
Oil strainer (primary)
Replace
●
Fixed / V
Control line fi lter - Condensate
Replace
●
Fixed
Oil level gauge
Replace
●
Fixed / V
Shaft seal - Main motor
Check / Clean
●
Fixed / V
Temperature control valve
Replace
●
Fixed / V
Smoothing condenser - Controller
Replace
●
V
PC board assembly (Including LCD)
Check / Clean
/ Replace
●
Fixed / V
Check for contamination and discoloration.
Replace as required.
Can be used further if appropriate.
Power PCB - Controller
Check / Clean
/ Replace
●
V
Communication board
Check / Clean
/ Replace
●
Fixed / V
Electromagnetic contactor
Check
▲
Fixed / V Replace as required.
Lithium battery
Replace
●
Fixed / V
Fan inverter
Replace
●
Fixed / V Air-cooled type
4
3-Year Schedule
(for 4,000 hours/year or less operation)
5
6-Year Schedule: Overhauling
(for 4,000 hours/year or less operation)
Part or Item Action Category Type Remarks
Hi-Precooler
Check / Clean
▲
Fixed / V
Clean as required. (Air-cooled 125psi (0.86)MPa type)
Demister - Drain separator
Check / Clean
▲
Fixed / V
3-Way solenoid valve & capacity control system
Check
▲
Fixed Replace as required.
Blowoff solenoid Valve
Check
▲
V
Air relief valve
Check / Clean
▲
Fixed / V
Protection, Safety device
Check
▲
Fixed / V
Change any operating parts in need of replacement.
Motors
Check / Clean
▲
Fixed / V
Clean and measure the insulation for any resistance.