Emerson Fluid Chiller Anleitung zur Fehlerbehebung PDF herunterladen (Seite 4)

Table of Contents

Thermal Expansion Valves ....................................... 1

Internal Equalizer ........................................... 2

Factory Setting of TXVs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

External Equalizer........................................... 3

Superheat ................................................. 5

TXV Selection .............................................. 6

Application Tips ............................................ 7

Balanced Port TXVs ......................................... 9

M.O.P. ..................................................... 9

Other TXV Considerations ................................... 11

Emerson TXVs............................................. 11

Electronic Valves & Controls .................................... 14

Electronic Valve Introduction ................................ 15

Parts Required for Electronic Valves .......................... 16

Pressure Transmitter – PT4 .................................. 17

TXV Controller – EC3-X32 ................................... 17

TXV Controller – EC3-X33 ................................... 18

Universal Driver – EXD-U00 .................................. 18

Electrical Control Valve – EX ................................. 19

Component Selection Table.................................. 20

Solenoid Valves .............................................. 21

What are Solenoid Valves? .................................. 22

Principles of Solenoid Operation ............................. 22

Types of Solenoids ......................................... 23

Installation ................................................ 25

Emerson Solenoid Valves ................................... 25

System Protectors............................................. 26

Filter driers ............................................... 28

HFC Refrigerants and POE Lubricants ......................... 29

Clean-up Procedure for Compressor Motor Burnout ............. 32

Emerson System Protectors ................................. 34

Regulators ................................................... 35

Suction Line Regulators..................................... 36

Applications of EPRs ....................................... 36

Crankcase Regulators ...................................... 38

Headmaster Pressure Control ................................ 39

Hot Gas Bypass ........................................... 41

Liquid Injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Oil Controls .................................................. 45

Temperature Pressure Controls.................................. 47

Basic Rules of Good Practice ................................... 54

Troubleshooting Guide ......................................... 57

1 2 3 4 5 6 7 8 9 ... 71 72

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