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JOHNSON CONTROLS

8

Form 160.78-N1 

Issue date: 2/02/2022

Section 1 - Shipping

•  Form 10 (shipped in two assemblies)
•  Form 11 (shipped in two assemblies)

Units that are shipped dismantled MUST 

be re-assembled by, or under the supervi-

sion of a Johnson Controls representative.
Refer to YMC

2

 Unit Re-assembly Manual 

(Form 160.78-N2) for detailed re-assem-

bly instructions.

When more than one chiller is involved, 

the major parts of each unit will be 

marked to prevent mixing of assemblies. 

Piping and wiring drawings to be fur-

nished by Johnson Controls.

Form 1

The chiller is shipped complete with miscellaneous 

loose items shipped together.

Refrigerant charges are included.

Chiller unit

The unit is completely assembled at the factory.

•  The driveline (compressor/motor assembly) is 

mounted and all the necessary interconnecting 

piping is assembled.

•  The complete unit is factory leak-tested, evacuat-

ed, and shipped charged with R-134a refrigerant.

•  The OptiView™ Control Center is mounted on 

the unit.

•  The variable speed drive (VSD) is mounted, 

wired, and shipped with glycol.

Miscellaneous items

The following items are shipped together:

•  Four vibration isolation pads (or optional spring 

isolators and brackets).

Field assembled units only

If the chiller is not shipped complete as shown in Form 

1 or 2 below, use the 

YMC

2

 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 Johnson Controls representative will 

be furnished to check the installation, supervise the 

initial start-up and operation of all chillers installed 

within the Continental United States.

The Johnson Controls Warranty may be 

voided if the following restrictions are not 

adhered to.

1.  No valves or connections should be opened under 

any circumstances because such action will result 

in loss of the factory nitrogen charge.

2.  Do not dismantle or open the chiller for any rea-

son except under the supervision of a Johnson 

Controls representative.

3.  When units are shipped dismantled, notify the 

nearest Johnson Controls office in ample time for 

a Johnson Controls representative to supervise 

rigging the unit to its operating position and the 

assembly of components.

4. 

Do not make final power supply connections to 

the compressor motor drive or control center.

5.  Do not charge the unit with refrigerant.
6.  Do not attempt to start the system.
7.  Do not run hot water (110°F / 43°C max) or steam 

through the evaporator or condenser at any time.

YMC

2

 shipment forms

The chiller may be ordered and shipped in any of the 

following forms:

•  Form 1 (shipped complete)
•  Form 2 (shipped complete)
•  Form 3 (shipped in three assemblies)
•  Form 7 (shipped in four assemblies)
•  Form 9 (shipped in two assemblies)

Содержание YMC2

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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