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MAINTENANCE
11.10.
REFRIGERANT CYCLE DIAGRAM OF HITACHI AIR-COOLED WATER CHILLER (RCUE
50,60,70,100,120,140,150,180,200,240,270,300,330,360,400AG1) WITH ECONOMIZER.
NOTE:
R407C shall be charged by LIQUID.
No.
Name
No.
Name
1
Compressor
15
Stop Valve (Option)
2
Air Cooled Condenser
16
Stop Valve (Option)
3
Water Cooler
17
Compressor Dual Safety Valve (Option)
4
Drier Strainer
18
Pressure Switch
5
Expansion Valve
19
Solenoid Valve
6
Check Valve
20
Regulation Valve
7
Stop Valve (with check Joint)
21
Economizer
8
Stop Valve
22
Strainer
9
High Pressure Switch
A
High Pressure Gauge
10
Pressure Sensor (Low)
B
Low Pressure Gauge
11
Pressure Sensor (High)
C
Stop Valve
12
Pressure Relief Valve
D
Charging Cylinder
13
Sight Glass
E
Vacuum Pump
14
Compressor Safety Valve
(Option)
Flange Connection
Flare Connection
Solder Connection
Refrigerant Cycle
Chilled Water Inlet
Chilled Water Outlet
Option
Option
Option
Option
Gauge
Manifold
Unit Side
Charging Evacuation
