Daikin EWAD E-SS Series - Erad E-Ss;Sl; Figure 21 -ERAD E SS;SL - Not Economised Refrigerante Circuit

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ERAD E-SS/SL
ERAD E-SS/SL units (Condensing Units) refrigerant cycle is identical to EWAD E-SS/SL refrigerant cycle except they are
without evaporator, expansoion valve and low pressure safety valve.
Units are designed to be used with external evaporator either for chilling water or air. Typical, but not exhaustive, use is
for custom-made evaporator for process cooling and air-handling unit application.
Chilled fluid entering and leaving temperature probes are supplied with the unit with 12 m cables.
Selection and installation of expansion vale (either thermostatic or electronic), as well as the design of suction and liquid
pipe is a responsibility of the plant designer.
Units ar supplied with about 1 barg nitrogen holding charge.
Figure 21 – ERAD 120E ÷ 490E-SS – ERAD 120E ÷ 460E-SL
Not economised refrigerante circuit
1.
Single-screw compressor
12.
Compressor suction shutoff valve
2.
Non-return valve
13.
Service port
3.
Compressor discharge shutoff valve
14.
Suction line connection
4.
High-pressure safety valve (25,5 bar)
15.
Liquid line connection
5.
Condenser coil
WL1
Low-pressure transducer (-0,5:7,0 bar)
6.
Built-in undercooling section
WO1.
Oil pressure transducer (0,0:30,0 bar)
7.
Axial ventilator
WH1.
High-pressure transducer (0,0:30,0 bar)
8.
Liquid line isolating tap
WD1.
Discharge temperature sensor/ Oil
9.
Dehydration filter
F13.
High-pressure pressure switch (21,0 bar)
10.
Liquid and humidity indicator
WIE.
Chilled fluid entering temperature probe
11.
Liquid injection solenoid valve
WOE.
Chilled fluid leaving temperature probe