EDM WQL H RC

WQL-WQH-WQRC 20-190
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9
Refrigerant Flow Diagram - WQH 50 to 190
SAFETY / CONTROL DEVICES
A High pressure switch (40.5 bar)
B Low pressure switch (2 bar)
AT High pressure transducer (optional)
BT Low pressure transducer
C Water differential pressure switch
D Water differential pressure switch
E Outlet water temperature sensor
F Inlet water temperature sensor
G Inlet water temperature sensor
H Outlet water temperature sensor
I PED pressure relief valve (45 bar)
S 5/16" Shrader connection (service only)
Pipe connection with Shrader valve
COMPONENTS
1 Compressors
2 4-way valve
3 Condenser
4 Drier filter
5 Sight glass
6 Mechanical expansion valve
7 Evaporator
8 Check valve
9 Electronic expansion valve
10 Desuperheater
4 6
S
ON
5
2
S
A
S
B
88
8
8
MECHANICAL EXPANSION
VALVE (STANDARD)
E
F
3
G
H
7
C
D
ST
UNIT
CONTROL
EEV
CONTROL
BT
ELECTRONICAL EXPANSION
VALVE (OPTIONAL)
4 5 9
OIL EQUAL.
1
10
I
AT
S