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York YMC2 Manual Download Page 18

JOHNSON CONTROLS

18

Form 160.78-N1 

Issue date: 2/02/2022

Section 2 - Installation

A

B

C

D

E

F

F

Figure 6 - 

Spring isolators

Operating unit weight

Dimension A

Dimension B

Dimension C

Dimension D

Dimension E

Dimension F

Up to 35,000 lb (15,880 kg)

62 in. (1575) 31 in. (787)

31 in. (787)

6 in. (152)

6 7/8 in. 

(175)

5 1/2 in. 

(140)

Note

: Dimensions are shown in Inches (mm)

LD12643

Summary of Contents for YMC2

Page 1: ...YMC2 Model A with OptiView Control Center Centrifugal Liquid Chillers Installation Guide Supersedes 160 78 N1 512 Form 160 78 N1 222 R 134a Issue Date February 2 2022...

Page 2: ...erenced materials This in dividual shall also be familiar with and comply with all applicable industry and governmental standards and regulations pertaining to the task in question Safety symbols The...

Page 3: ...rding the applicability of these documents the technician should verify whether the equipment has been modified and if current litera ture is available from the owner of the equipment prior to perform...

Page 4: ...de 3 5 1 in Code 4 Heat exchanger mod level Nominal inside diameter in Nominal length ft Marketing tube number E A 25 14 271 B R 1 1 F C R Compressor nomenclature Gas path revision level Impeller desi...

Page 5: ...ators 14 Neoprene isolator pads 14 Install optional spring isolators 17 Make connections 19 Piping connections 19 Refrigerant relief piping 21 Unit piping 21 Control wiring 21 Power wiring 21 Supplied...

Page 6: ...es 3 pass nozzle arrangements 28 Figure 18 Condensers compact waterboxes 2 pass nozzle arrangements 28 Figure 19 Condensers 150 psi compact waterboxes 29 Figure 20 Evaporators marine waterboxes 1 pass...

Page 7: ...dismantled must be field assembled under the supervision of a Johnson Controls representative but otherwise instal lation is as described in this manual Component combinations Figure 1 identifies the...

Page 8: ...1 or 2 below use the YMC2 Unit Reassembly Manual Form 160 78 N2 in conjunction with this installation manual This manual is provided with all units that are to be field assembled The services of a Joh...

Page 9: ...enser shell assembly 3 The variable speed drive VSD 4 Miscellaneous shipped loose items Refrigerant charges are shipped separately Arrangements with the local service office must be made to ensure ref...

Page 10: ...r shipping separately but not skidded All conduit is left on the shells Refrigerant lines between shells are flanged and capped requiring no welding All openings the shells are closed and charged with...

Page 11: ...line compressor motor assembly is mounted with all necessary interconnecting pip ing assembled The complete unit is factory leak tested evacuat ed and shipped charged with R 134a refrigerant The motor...

Page 12: ...ems are shipped together Four vibration isolation pads or optional spring isolators and brackets Other shipped loose items including piping wa ter temperature controls and wiring Variable speed drive...

Page 13: ...s When optional skids are used it may be necessary to remove the skids so riggers skates can be used under the unit end sheets to reduce overall height Each unit has four lifting holes two in each end...

Page 14: ...nal location on the floor or mount ing pad lift the unit or shell assembly by means of an overhead lift and lower the unit to its mounting posi tion If optional shipping skids are used remove them bef...

Page 15: ...ght 15 001 lb to 29 000 lb 6 805 kg to 13 154 kg LD12641 Unit weight up to 5 500 lb 2 494 kg LD12638 Unit weight 5 501 lb to 8 000 lb 2 495 kg to 3 628 kg LD12639 Unit weight 8 001 lb to 15 000 lb 3 6...

Page 16: ...llation A B C D E D D D LD12642 Figure 4 Neoprene isolators Operating unit weight Dimension A Dimension B Dimension C Dimension D Dimension E 15 001 lb to 29 000 lb 6 805 kg to 13 154 kg 62 in 1575 31...

Page 17: ...unit can be lowered onto the floor Level the unit The longitudinal alignment of the unit should be checked by placing a level on the top center of the evaporator shell under the compressor motor asse...

Page 18: ...on A B C D E F F Figure 6 Spring isolators Operating unit weight Dimension A Dimension B Dimension C Dimension D Dimension E Dimension F Up to 35 000 lb 15 880 kg 62 in 1575 31 in 787 31 in 787 6 in 1...

Page 19: ...ra ture control valve should be the type to open on increas ing drive coolant temperature fail closed and set for a temperature above dewpoint It can be requested as factory supplied on a chiller orde...

Page 20: ...and condenser wa ter circuits to protect the chiller and other components including the pumps tower spray nozzles chilled water coils and controls The strainer must be installed in the entering chill...

Page 21: ...evaporator for the purpose of quickly relieving excess pressure of the re frigerant charge to the atmosphere as a safety precau tion in case of an emergency such as fire Refrigerant relief vent pipin...

Page 22: ...Installation Figure 9 FAA unit insulation LD03827a Bold lines and shaded components represent insulation HOT GAS LINE SIGHT GLASS CONDENSER EVAPORATOR EVAPORATOR CONDENSER LIQUID LINE HOT GAS CONNECTI...

Page 23: ...2 02 2022 2 Figure 10 FAB unit insulation LD03827b Bold lines and shaded components represent insulation HOT GAS LINE SIGHT GLASS CONDENSER EVAPORATOR EVAPORATOR CONDENSER LIQUID LINE HOT GAS CONNECTI...

Page 24: ...or the tube maintenance Units are furnished factory anti sweat insulated on or der at additional cost This includes all low tempera ture surfaces except the two cooler liquid heads Installation check...

Page 25: ...in 394 14 ft 0 in 4267 NOTES 1 All dimensions are approximate Certified dimensions are available on request 2 Standard water nozzles are Schedule 40 pipe size furnished as welding stub outs with ANSI...

Page 26: ...ft 5 in 127 1 ft 5 in 432 2 ft 3 in 686 0 ft 5 in 127 NOTE Dimensions are shown in in mm 1 pass evaporator nozzle arrangements In Out Left end Right end Right end Left end Figure 12 Evaporators compac...

Page 27: ...are not furnished 3 One two and three pass nozzle arrangements are available only in pairs shown and for all shell codes Any pair of evaporator nozzles may be used in combination with any pair of cond...

Page 28: ...ft 9 1 8 in 841 1 ft 5 7 8 in 454 2 ft 9 1 8 in 841 NOTE Dimensions are shown in in mm LD14008 LD14011 LD14010 LD14009 Condenser nozzle arrangements 150 psi compact waterboxes 1 pass condenser nozzle...

Page 29: ...d face water flanged nozzles are optional add 13 mm to nozzle length Companion flanges nuts bolts and gaskets are not furnished 3 One two and three pass nozzle arrangements are available only in pairs...

Page 30: ...45 NOTE Dimensions are shown in in mm Figure 20 Evaporators marine waterboxes 1 pass nozzle arrangements LD14012 LD14015 LD14014 Figure 22 Evaporators marine waterboxes 3 pass nozzle arrangements Figu...

Page 31: ...zzle length Companion flanges nuts bolts and gaskets are not furnished 4 One two and three pass nozzle arrangements are available only in pairs shown and for all shell codes Any pair of evaporator noz...

Page 32: ...in 152 1 ft 3 1 2 in 394 3 ft 10 1 2 in 1181 1 ft 5 1 2 in 445 3 ft 10 1 2 in 1181 1 ft 4 1 2 in 419 1 ft 5 1 2 in 445 3 ft 10 1 2 in 1181 1 ft 4 1 2 in 419 CA25 12 in 305 8 in 203 6 in 152 1 ft 3 1...

Page 33: ...NSI AWWA C 606 grooves allowing the option of welding flanges or use of ANSI AWWA C 606 couplings Factory installed class 150 ANSI B16 5 round slip on forged carbon steel with 1 6 mm raised face water...

Page 34: ...ipping weight based on Form 1 shipment Refer to product drawings for detailed weight information Table 3 Evaporator marine waterbox weights to be added to standard unit weights shown on Table 2 Evapor...

Page 35: ...Celsius multiply by 5 9 or 0 5556 Example 10 0 F range x 0 5556 5 6 C range Table 5 SI metric conversion Measurement Multiply English unit By factor To obtain metric unit Capacity Tons refrigerant eff...

Page 36: ...Pennsylvania USA 17349 1 800 524 1330 Subject to change without notice Printed in USA Copyright by Johnson Controls 2022 www johnsoncontrols com ALL RIGHTS RESERVED Form 160 78 N1 222 Issue Date Febru...

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