Refrigerant Cycle Diagram Of Hitachi Air-Cooled Water Chiller (Rcue 80, 160, 240, 320, 400 Ag2) With Economizer - Hitachi RCUE40AG2 Service Manual

Maintenance
6.8.2. Refrigerant Cycle Diagram of Hitachi Air-Cooled Water Chiller
(RCUE 80, 160, 240, 320, 400 AG2) with economizer.
Option
Option
Option
No.
1 Compressor Compressor
2 Air Cooled Condenser
3 Water Cooler
4 Filter Drier
5 Electronic Expansion Valve Electronic Expansion Valve
6 Check Valve
7 Stop Valve (with check Joint) Stop Valve (with check Joint)
8 High Pressure Switch High Pressure Switch
9 Pressure Sensor (Low) Pressure Sensor (Low)
10 Pressure Sensor (High) Pressure Sensor (High)
11 Pressure Relief Valve
12 Sight Glass Sight Glass
13 Compressor Safety Valve (Option) Compressor Safety Valve (Option)
14 Stop Valve (Option) Stop Valve (Option)

NOTE:
R407C shall be charged by LIQUID.
pag. 167
SMGB0003 rev.0 - 11/2006
Option
Chilled Water Inlet
Chilled Water Outlet
Name No.
15
16
17
18
19
20
21
22
A
B
C
D
E
Charging Charging
Unit side
Name
Stop Valve (Option) Stop Valve (Option)
Compressor Dual Safety Valve (Option) Compressor Dual Safety Valve (Option)
Pressure Switch
Solenoid Valve
Capillary Tube Capillary Tube
Economizer
Strainer
Stop Valve Stop Valve
High Pressure Gauge High Pressure Gauge
Low Pressure Gauge Low Pressure Gauge
Stop Valve Stop Valve
Charging Cylinder Charging Cylinder
Vacuum Pump Vacuum Pump
Gauge
manifold
6 6
Evacuation
Flange Connection
Flare Connection
Solder Connection
Refrigerant Cycle