Name: York YCAS0250
Brand: York
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WIRING DIAGRAM

AIR-COOLED SCREW LIQUID CHILLERS

New Release

Form 201.19-W2 (304)

YCAS AIR-COOLED LIQUID CHILLERS

YCAS0250 THROUGH YCAS0330 (3 COMPRESSOR)

YCAS0360 THROUGH YCAS0440 (4 COMPRESSOR)

STYLE G

(60 Hz)

00258VIP

Table of Contents2
Nomenclature4
Electrical Notes6
Electrical Data8
Multiple Point Power Supply Connection - 3 & 4 Compressor Units8
Optional Single-Point Power Supply Connection with Individual Unit Circuit Breakers10
3 & 4 Compressor Units10
Elementary Wiring Diagram Ycas0250 - Ycas0330 (3 Compressor)12
Fig. 1 - Wiring Diagram - Dxst Direct Drive12
Across-The-Line Start13
Fig. 2 - Wiring Diagram - Across-The-Line Start13
Elementary Wiring Diagram Ycas0250 - Ycas0330 (3 Compressor) Wye Delta Start14
Fig. 3 - Wiring Diagram - Wye Delta Start14
Fig. 4 - Control Power Transformer Kit15
Fig. 5 - Elementary Wiring Diagram16
Fig. 6 - Connection Diagram 3 Compressor18
Fig. 7 - Connection Diagram 3 Compressor19
Fig. 8 - Connection Diagram 3 Compressor20
Fig. 9 - Connection Diagram 3 Compressor22
Fig. 10 - Connection Diagram 3 Compressor23
Fig. 11 - Connection Diagram 3 Compressor24
Elementary Diagram Dxst Starter Control Circuit25
Fig. 12 - Elementary Diagram 3 Compressor Starter Control Circuit25
Fig. 13 - Elementary Diagram Dxst Fan Control - 3 Compressor26
Connection Diagram System Wiring27
Fig. 14 - Connection Diagram System Wiring 3 Compressor27
Fig. 15 - Connection Diagram Ststem Wiring - 3 Compressor28
Elementary Wiring Diagram Ycas0360 - Ycas0440 (4 Compressor)29
Fig. 16 - Elementary Wiring Diagram - 4 Compressor29
Across-The-Line Start30
Fig. 17 - Elementary Wiring Diagram - Across-The-Line Start30
Wye Delta Start31
Fig. 18 - Elementary Wiring Diagram - Wye Delta31
Fig. 19 - Control Power Transformer Kit32
Fig. 20 - Elementary Wiring Diagram34
Connection Wiring Diagram36
Fig. 21 - Connection Diagram 4 Compressor36
Fig. 22 - Connection Diagram 4 Compressor37
Fig. 23 - Connection Wiring Diagram38
Fig. 24 - Connection Wiring Diagram39
Fig. 25 - Connection Diagram 4 Compressor40
Fig. 26 - Connection Diagram 4 Compressor41
Fig. 27 - Connection Diagram 4 Compressor42
Fig. 28 - Connection Diagram 4 Compressor43
Elementary Diagram Dxst Starter Control Circuit44
Fig. 29 - Elementary Diagram - Dxst Starter Control Circuit44
Elementary Diagram Dxst Fan Control Circuit45
Fig. 30 - Elementary Diagram - Dxst Fan Control Circuit45
Connection Diagram System Wiring Standard and Remote Evap Units46
Fig. 31 - Connection Diagram System Wiring46
Fig. 32 - Connection Diagram System Wiring47
Compressor Terminal Box System 1 through 448
Fig. 33 - Compressor Terminal Box, System 1-448

Brand	York
Model	YCAS0250
Category	Chiller
Language	English

York YCAS0250 User Manual

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York YCAS0250 Specifications

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