York MILLENNIUM YS User manual

INSTALLATION, OPERATION,MAINT.
MILLENNIUM®
ROTARY SCREW LIQUID CHILLERS
Supersedes: Nothing Form160.47-NOM3(599)
MODELS
YS BA BA S0 THRU YS FC FB S5
STYLE D
m
Metric Conversions
®
M
A
N
U
F
A
C
T
U
R
E
R
C
E
R
T
I
F
I
E
D
T
O
A
R
I
A
S
C
O
M
P
L
Y
I
N
G
W
I
T
H
A
R
I
S
T
A
N
D
A
R
D
5
5
0
C
E
N
T
R
A
L
S
T
A
T
I
O
N
A
I
R
-
H
A
N
D
L
I
N
G
U
N
I
T
S
••
29039A(R)
R-22 and R-134a

2YORKINTERNATIONAL
NOMENCLATURE
The model number denotes the following characteristics of the unit:
YS BB BA S0 – CF D S
Model Special Features
Cooler Code DesignLevel
Condenser Code MotorCode
Compressor Code Power Supply:
– for 60 Hz
5 for 50 Hz

3
FORM160.47-NOM3
YORKINTERNATIONAL
TABLE OF CONTENTS
Nomenclature ............................................................................................... 2
SECTION 1INSTALLATION .................................................................... 5
General ......................................................................................................... 5
Inspection ..................................................................................................... 6
Data Plate .................................................................................................... 6
Location........................................................................................................ 6
Foundation .................................................................................................... 6
Clearance ..................................................................................................... 6
Rigging.......................................................................................................... 7
Locating and Installing Isolator Pads ........................................................... 12
Checking the Isolator Pad Deflection .......................................................... 12
Installing Optional Spring Isolators............................................................... 18
Piping Connections ....................................................................................... 19
Check for Piping Alignment...................................................................... 19
Cooler and Condenser Water Piping ........................................................... 20
Cooling Units – Chilled Water .................................................................. 20
Cooling Units – Condenser Water Circuit................................................ 20
Stop Valves ............................................................................................... 20
Flow Switches (Field Installed) ................................................................ 20
Drain and Vent Valves.............................................................................. 20
Checking Piping Circuits and Venting Air ................................................ 20
Refrigerant Relief Piping.............................................................................. 21
UnitPiping .................................................................................................... 23
ControlWiring .............................................................................................. 23
Power Wiring ................................................................................................... 23
Unit with Electro-Mechanical Starter ...................................................... 23
Unit with Solid State Starter (Optional).................................................... 24
Insulation ...................................................................................................... 24
Insulation Check – Request for Start-Up Service ....................................... 24
SECTION 2OPERATION .......................................................................... 27
Basic Description ......................................................................................... 27
Components.................................................................................................. 27
Driveline.................................................................................................... 27
Oil Separator ............................................................................................ 28
Condenser................................................................................................. 28
Evaporator ................................................................................................ 28
Condensing Water Temperature .................................................................. 29
R-22 Refrigerant ...................................................................................... 29
R-134a Refrigerant................................................................................... 29
OilSystem .................................................................................................... 29
Oil Eductor Circuit ....................................................................................... 33
Liquid Refrigerant Circuit ............................................................................ 34
Dual Service Chillers ................................................................................ 34
Capacity Control .......................................................................................... 37
SECTION 3MAINTENANCE ................................................................... 39
General ......................................................................................................... 39
Compressor Oil ............................................................................................ 39
Changing Compressor Oil......................................................................... 39
OilLevel ................................................................................................... 41
OilFilter........................................................................................................ 41
Oil Filter Replacement ................................................................................. 41
SingleOil Filter ......................................................................................... 41
Dual Oil Filters ......................................................................................... 41
PAGE

4YORKINTERNATIONAL
TABLE OF CONTENTS PAGE
Filter Drier Replacement.............................................................................. 42
Motor ............................................................................................................ 42
Determining Correct Refrigerant Charge Level .......................................... 42
Refrigerant Charging.................................................................................... 42
Refrigerant Leak Checking.......................................................................... 43
Pressure Connections .................................................................................. 43
Condenser Tubes.......................................................................................... 43
Condenser Water Side Tube Cleaning Procedure ....................................... 43
Chemical Cleaning Procedure .................................................................. 43
Mechanical Cleaning Procedure .............................................................. 44
Evaporator Tubes ......................................................................................... 44
Vibration Analysis ........................................................................................ 44
LIST OF ILLUSTRATIONS
FIGURE
1 Model YS Style D Rotary Screw Liquid Chiller ................................. 5
2 Rigging ................................................................................................. 7
3 Standard Neoprene Vibration Isolator Pad Mounts ............................ 13
4 Overall Dimensions - English, S0 thru S3 Compressor....................... 14
5 Overall Dimensions - English, S4 and S5 Compressor ....................... 15
6 Overall Dimensions - Std. Intl., S0 thru S3 Compressor..................... 16
7 Overall Dimensions - Std. Intl., S4 and S5 Compressor ..................... 17
8 Spring Isolators.................................................................................... 18
9 Schematic of a Typical Piping Arrangement for Cooling Units .......... 20
10 Typical Refrigerant Vent Piping from Relief Valves ........................... 21
11 Typical Refrigerant Vent Piping from Rupture Disk ........................... 22
12 YS Motor Connections (Electro-Mechanical Starter Application) ..... 25
13 Installation Check List and Request for Authorized Start-Up
Engineer ........................................................................................ 26
14 Component Layout Drawing ............................................................... 28
15 Oil Piping Schematic ........................................................................... 30
16 Oil Separator Schematic ..................................................................... 32
17 Oil Filter Location................................................................................ 29
18 Oil Pressure Transducer Location ...................................................... 31
19 Eductor Block...................................................................................... 31
20 Filter Driers and Oil Eductor ............................................................... 34
21 Oil Eductor Schematic ........................................................................ 35
22 Refrigerant Schematic ........................................................................ 36
23 Capacity Control Piping Schematic ..................................................... 38
24 4-Way Directional Valve Subplate ...................................................... 37
25 Oil Heater and Sight Glass .................................................................. 41
26 Transducer Measurement Points ........................................................ 45
PAGE
LIST OF TABLES
TABLE
1 Clearances........................................................................................... 6
2 Weights - English, R-22 and R-134a Units, 50 and 60 Hz .................. 8
3 Weights - SI, R-22 and R-134a Units, 50 and 60 Hz .......................... 10
4 Refrigerant Relief Characteristics ...................................................... 23
5 Variable Orifice Pressure Differential Setpoints................................. 34
6 York Oil Types .................................................................................... 39
7 Compressor Oil Limits ........................................................................ 39
8 Refrigerant Charge Level ................................................................... 42
9 Water Flow Velocities ......................................................................... 40
PAGE

5
FORM160.47-NOM3
YORKINTERNATIONAL
FIG. 1 – MODEL YS, STYLE D ROTARY SCREW LIQUID CHILLER
SECTION 1
INSTALLATION
GENERAL
This instruction describes the installation of a Model YS
Rotary Screw Liquid Chiller. (See Figure 1.) This unit
is shipped as a single factory assembled, piped, wired
and nitrogen or refrigerant charged package (Form 1
shipment). This unit requires a minimum of field labor
tomake chilledwaterconnections, condenserwater con-
nections,refrigerantatmospheric reliefconnections, and
electrical power connections.
YS units can also be shipped dismantled when required
by rigging conditions, but generally it is more economi-
cal to enlarge access openings to accommodate the fac-
tory assembled unit.
The YS Chiller may be ordered and shipped in the fol-
lowingforms:
Form 1 – Factory Assembled Unit, Complete with
Motor and Refrigerant and Oil Charges as
discussed in this instruction.
Form 2 – Factory Assembled (same as Form 1) ex-
cept not charged with oil or refrigerant.
Shippedwithholdingchargeofnitrogen.Re-
frigerantshippedin 50and125lb. cylinders.
Form 3 – Driveline Separate From Shells – Shipped
as three major assemblies.
Form 7 – Split Shells – Shipped as four major as-
semblies.
UnitsshippeddismantledMUSTbere-
as-sembled by, or under the supervi-
sion of a York representative. Refer to
Form 160.47-N3.1 for detailed in-
structions of Form 3 and 7 shipments.
MOTOR
MOTORTERMINALBOX COMPRESSOR RUPTURE
DISK
RELIEFVALVE
OIL
SEPARATOR
MICROCOMPUTER
CONTROL
CENTER
COOLER
SIGHTGLASS 29039A
RELIEFVALVE
CONDENSER
1

6YORKINTERNATIONAL
TABLE 1 – CLEARANCES
TUBE ADD–
COMPRESSOR REMOVAL MARINE
SPACE WATER BOXES
S0, S1,
S2, S3 10–1 / 3073 1–6 / 457
S4, S5 12–1 / 3683 1–9 / 533
Dimensionsin Ft–In /mm.
INSPECTION
The unit shipment should be checked on arrival to see
that all major pieces, boxes and crates are received.
Each unit should be checked on the trailer or rail car
when received, before unloading, for any visible signs
of damage. Any damage or signs of possible damage
must be reported to the transportation company imme-
diately for their inspection.
YORK WILL NOT BE RESPONSIBLE FOR ANY
DAMAGE IN SHIPMENT OR AT JOB SITE OR
LOSS OF PARTS. (Refer to Shipping Damage Claims,
Form 50.15-NM.)
When received at the job site, all containers should be
opened and the contents checked against the packing
The York Warranty will be voided if
the following restrictions are not ad-
hered to:
1. No valves or connections should
be opened under any circumstances
because such action will result in loss
of the factory refrigerant or nitrogen
charge.
2. Do not dismantle or open the unit
foranyreasonexceptunderthesuper-
vision of a York representative.
3. Whenunitsareshippeddismantled,
notifythe nearest York officeinample
time for a York representative to su-
pervise rigging the unit to its operat-
ing position and the assembly of com-
ponents.
4. Do not make final power supply
connections to the compressor motor
or control center.
5. Do not charge the system with oil.
6. Do not attempt to start the system.
7. Do not run hot water (100°F max.)
or steam through the cooler or con-
denser at any time.
list. Any material shortage should be reported to York
immediately.
DATAPLATE
A unit data plate is mounted on the control center as-
sembly of each unit, giving unit model number; design
working pressure; water passes; refrigerant charge;
serial numbers; and motor power characteristics and
connection diagrams. Refer to the “Nomenclature” on
page 2 to verify data plate markings.
LOCATION
Thechiller shouldbelocated inan indoorlocation where
temperature ranges from 40°F to 110°F (4°C to 43°C).
The units are furnished with neoprene vibration isolator
mounts for basement or ground level installations. Units
may be located on upper floor levels providing the floor
is capable of supporting the total unit operating weight.
Refer to Tables 1 and 2.
Equipment room should be ventilated to allow adequate
heat removal. Check ANSI, state, local or other codes.
FOUNDATION
A level floor, mounting pad or foundation must be pro-
vided by others, capable of supporting the operating
weight of the unit.
CLEARANCE
Clearances should be adhered to as follows:
Rear, Ends and Above Unit – 2 Ft. / 50mm
Front of Unit – 3 Ft. / 75mm
Tube Removal – See Table 1 below
Installation

7
FORM160.47-NOM3
YORKINTERNATIONAL
If necessary to rig a unit by one end
to permit lifting or dropping through
a vertical passageway, such as an el-
evator shaft, contact York Factory for
special rigging instructions.
The shipping and operating weights are given in
Tables 2 and 3. Overall dimensions are shown in Fig-
ures 4 thru 7. More detailed dimensions can be found in
Form 160.47-PA1.
If optional shipping skids are used, remove them before
loweringtheunit toits mountingposition. Rigthe unit to
its final location on the floor or mounting pad by lifting
the unit (or shell assembly) with an overhead lift and
lower the unit to its mounting position.
RIGGING
The complete standard unit is shipped without skids.
(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 the overall height.)
Each unit has four lifting holes (two on each end) in the
end sheets which should be used to lift the unit. Care
should be taken at all times during rigging and handling
to avoid damage to the unit and its external connec-
tions. Lift only using holes shown in Figure 2.
Do not lift the unit with slings around
motor/compressor assembly or by
means of eyebolts in the tapped holes
ofthecom-pressormotorassembly.Do
not turn a unit on its side for rigging.
Do not rig with driveline in a vertical
orientation.
1
FIG. 2 – RIGGING
LD03588rig

8YORKINTERNATIONAL
TABLE 2 – WEIGHTS-ENGLISH,R-22 ANDR-134AUNITS, 50 AND60HZ
REFRIG- REFRIG-
SHELL COM- SHIP- OPER- ERANT ERANT
CODE PRES- PING ATING CHARGE CHARGE
COOLER SOR WT. WT. (Lbs. (Lbs.
–COND. (Lbs.) (Lbs.) R-22) R-134a)
BA-BA S0 8,388 9,019 490 441
BA-BB S0 8,538 9,235 490 441
BB-BA S0 8,494 9,187 460 414
BB-BB S0 8,644 9,403 460 414
BA-CA S0 9,142 9,996 520 468
BA-CB S0 9,416 10,388 520 468
BB-CA S0 9,271 10,186 480 432
BB-CB S0 9,545 10,579 480 432
CA-BA S0 9,297 10,084 620 558
CA-BB S0 9,448 10,299 620 558
CB-BA S0 9,528 10,412 620 558
CB-BB S0 9,679 10,627 620 558
CA-CA S0 10,011 11,020 650 585
CA-CB S0 10,285 11,413 650 585
CB-CA S0 10,242 11,348 650 585
CB-CB S0 10,516 11,740 650 585
BA-BA S1 8,454 9,085 490 441
BA-BB S1 8,608 9,301 490 441
BB-BA S1 8,560 9,253 460 414
BB-BB S1 8,711 9,469 460 414
BA-CA S1 9,208 9,974 520 468
BA-CB S1 9,482 10,454 520 468
BB-CA S1 9,337 10,252 480 432
BB-CB S1 9,611 10,645 480 432
CA-BA S1 9,363 10,150 620 558
CA-BB S1 9,513 10,365 620 558
CB-BA S1 9,594 10,478 620 558
CB-BB S1 9,745 10,693 620 558
CA-CA S1 10,077 11,086 650 585
CA-CB S1 10,351 11,479 650 585
CB-CA S1 10,308 11,414 650 585
CB-CB S1 10,582 11,806 650 585
BA-BA S2 10,542 11,174 —441
BA-BB S2 10,693 11,390 —441
BB-BA S2 10,648 11,342 —414
BB-BB S2 10,797 11,558 —414
BA-CA S2 11,298 12,065 —468
BA-CB S2 11,571 12,547 —468
BB-CA S2 11,426 12,342 —432
BB-CB S2 11,701 12,735 —432
CA-BA S2 11,452 12,241 —558
CA-BB S2 11,604 12,457 —558
CB-BA S2 11,683 12,567 —558
CB-BB S2 11,833 12,783 —558
CA-CA S2 12,146 13,155 680 612
CA-CB S2 12,419 13,547 680 612
CB-CA S2 12,377 13,483 680 612
CB-CB S2 12,650 13,874 680 612
REFRIG- REFRIG-
SHELL COM- SHIP- OPER- ERANT ERANT
CODE PRES- PING ATING CHARGE CHARGE
COOLER SOR WT. WT. (Lbs. (Lbs.
–COND. (Lbs.) (Lbs.) R-22) R-134a)
CA-DA S2 13,357 14,765 750 675
CA-DB S2 13,874 15,506 750 675
CB-DA S2 13,588 15,093 750 675
CB-DB S2 14,105 15,833 750 675
DA-CA S2 13,293 14,480 840 756
DA-CB S2 13,577 14,872 840 756
DB-CA S2 13,668 15,008 840 756
DB-CB S2 13,941 15,400 840 756
DC-CA S2 14,026 15,552 840 756
DC-CB S2 14,299 15,943 840 756
DA-DA S2 14,549 16,124 950 855
DA-DB S2 15,066 16,864 950 855
DB-DA S2 14,869 16,608 910 819
DB-DB S2 15,386 17,348 910 819
DC-DA S2 15,215 17,437 840 756
DC-DB S2 15,732 16,781 840 756
CA-CA S3 12,360 13,372 —612
CA-CB S3 12,633 13,764 —612
CB-CA S3 12,591 13,698 —612
CB-CB S3 12,865 14,090 —612
CA-DA S3 13,574 14,983 —675
CA-DB S3 14,090 15,726 —675
CB-DA S3 13,804 15,313 —675
CB-DB S3 14,324 16,054 —675
DA-CA S3 13,497 14,673 840 756
DA-CB S3 13,770 15,065 840 756
DB-CA S3 13,861 15,201 840 756
DB-CB S3 14,134 15,593 840 756
DC-CA S3 14,219 15,744 840 756
DC-CB S3 14,491 16,135 840 756
DA-DA S3 14,741 16,316 950 855
DA-DB S3 15,258 17,057 950 855
DB-DA S3 15,061 16,800 910 819
DB-DB S3 15,578 17,541 910 819
DC-DA S3 15,408 17,333 840 756
DC-DB S3 15,925 18,073 840 756
DA-CA S4 17,068 18,247 —740
DA-CB S4 17,341 18,639 —740
DB-CA S4 17,431 18,776 —740
DB-CB S4 17,705 19,168 —740
DC-CA S4 17,791 19,320 —740
DC-CB S4 18,064 19,710 —740
DA-DA S4 18,313 19,893 —830
DA-DB S4 18,833 20,634 —830
DB-DA S4 18,635 20,378 —800
DB-DB S4 19,153 21,119 —800
DC-DA S4 18,983 20,912 —740
DC-DB S4 19,426 21,652 —740
Installation

9
FORM160.47-NOM3
YORKINTERNATIONAL
REFRIG- REFRIG-
SHELL COM- SHIP- OPER- ERANT ERANT
CODE PRES- PING ATING CHARGE CHARGE
COOLER SOR WT. WT. (Lbs. (Lbs.
–COND. (Lbs.) (Lbs.) R-22) R-134a)
EA-EA S5 20,777 22,210 —1,260
EA-EB S5 21,423 23,065 —1,260
EB-EA S5 21,275 22,807 —1,215
EB-EB S5 21,853 23,682 —1,215
EC-EA S5 21,681 23,462 —1,170
EC-EB S5 22,322 24,317 —1,170
EA-FA S5 23,808 25,919 —1,368
EA-FB S5 25,020 27,521 —1,368
EB-FA S5 24,240 26,508 —1,368
EB-FB S5 25,445 28,112 —1,305
EC-FA S5 24,707 27,171 —1,305
EC-FB S5 25,919 28,769 —1,305
FA-EA S5 23,274 25,280 —1,690
FA-EB S5 23,920 26,135 —1,690
FB-EA S5 23,991 26,184 —1,690
FB-EB S5 24,568 27,036 —1,620
FC-EA S5 24,453 27,356 —1,620
FC-EB S5 25,423 28,211 —1,620
FA-FA S5 26,257 28,936 2,000 1,800
FA-FB S5 27,467 30,536 2,000 1,800
FB-FA S5 26,906 29,832 2,000 1,800
FB-FB S5 28,111 31,433 1,900 1,710
FC-FA S5 27,759 31,009 1,900 1,710
FC-FB S5 28,969 32,604 1,900 1,710
REFRIG- REFRIG-
SHELL COM- SHIP- OPER- ERANT ERANT
CODE PRES- PING ATING CHARGE CHARGE
COOLER SOR WT. WT. (Lbs. (Lbs.
–COND. (Lbs.) (Lbs.) R-22) R-134a)
EA-EA S4 20,460 21,890 1,400 1,260
EA-EB S4 21,104 22,743 1,400 1,260
EB-EA S4 20,955 22,484 1,350 1,215
EB-EB S4 21,533 23,337 1,350 1,215
EC-EA S4 21,362 23,139 1,300 1,170
EC-EB S4 22,000 23,991 1,300 1,170
EA-FA S4 23,485 25,592 1,520 1,368
EA-FB S4 24,695 27,192 1,520 1,368
EB-FA S4 23,914 26,180 1,520 1,368
EB-FB S4 25,119 27,781 1,450 1,305
EC-FA S4 24,382 26,840 1,450 1,305
EC-FB S4 25,592 28,435 1,450 1,305
FA-EA S4 22,922 24,998 —1,690
FA-EB S4 23,638 25,853 —1,690
FB-EA S4 23,711 25,902 —1,690
FB-EB S4 24,288 26,757 —1,690
FC-EA S4 24,171 27,076 —1,620
FC-EB S4 25,141 27,929 —1,620
FA-FA S4 25,977 28,655 2,000 1,800
FA-FB S4 27,187 30,256 2,000 1,800
FB-FA S4 26,626 29,552 2,000 1,800
FB-FB S4 27,830 31,152 1,900 1,710
FC-FA S4 27,148 30,729 1,900 1,710
FC-FB S4 28,688 32,324 1,900 1,710
NOTE: 1. Calculate total chiller weight by adding motor weight, solid state starter weight, and marine water box weights, if
applicable.
2. Shipping weight includes refrigerant and oil charge. Operating weight includes water in tubes and water boxes.
3. Weights based on standard tubes in coolers and condensers.
4. Operating weight based on R-22. Subtract difference in refrigerant charge if using R-134a.
TABLE 2 –WEIGHTS -ENGLISH,R-22 ANDR-134AUNITS, 50 AND60HZ (CONT’D)
1

10 YORKINTERNATIONAL
TABLE 3 –WEIGHTS -SI,R-22AND R-134A UNITS,50AND 60 HZ
REFRIG- REFRIG-
SHELL COM- SHIP- OPER- ERANT ERANT
CODE PRES- PING ATING CHARGE CHARGE
COOLER SOR WT. WT. (Kgs. (Kgs.
–COND. (Kgs.) (Kgs.) R-22) R-134a)
BA-BA S0 3,805 4,091 222 200
BA-BB S0 3,873 4,189 222 200
BB-BA S0 3,853 4,167 209 188
BB-BB S0 3,921 4,265 209 188
BA-CA S0 4,147 4,534 236 212
BA-CB S0 4,271 4,712 236 212
BB-CA S0 4,205 4,620 218 196
BB-CB S0 4,330 4,799 218 196
CA-BA S0 4,217 4,574 281 253
CA-BB S0 4,286 4,672 281 253
CB-BA S0 4,322 4,723 281 253
CB-BB S0 4,390 4,820 281 253
CA-CA S0 4,541 4,999 295 265
CA-CB S0 4,665 5,177 295 265
CB-CA S0 4,646 5,147 295 265
CB-CB S0 4,770 5,325 295 265
BA-BA S1 3,835 4,121 222 200
BA-BB S1 3,905 4,219 222 200
BB-BA S1 3,883 4,197 209 188
BB-BB S1 3,951 4,295 209 188
BA-CA S1 4,177 4,524 236 212
BA-CB S1 4,301 4,742 236 212
BB-CA S1 4,235 4,650 218 196
BB-CB S1 4,360 4,829 218 196
CA-BA S1 4,247 4,604 281 253
CA-BB S1 4,315 4,702 281 253
CB-BA S1 4,352 4,753 281 253
CB-BB S1 4,420 4,850 281 253
CA-CA S1 4,571 5,029 295 265
CA-CB S1 4,695 5,207 295 265
CB-CA S1 4,676 5,177 295 265
CB-CB S1 4,800 5,355 295 265
BA-BA S2 4,782 5,069 —200
BA-BB S2 4,850 5,167 —200
BB-BA S2 4,830 5,145 —188
BB-BB S2 4,898 5,243 —188
BA-CA S2 5,125 5,473 —212
BA-CB S2 5,249 5,691 —212
BB-CA S2 5,183 5,598 —196
BB-CB S2 5,308 5,777 —196
CA-BA S2 5,195 5,553 —253
CA-BB S2 5,264 5,650 —253
CB-BA S2 5,299 5,700 —253
CB-BB S2 5,367 5,798 —253
CA-CA S2 5,509 5,967 308 278
CA-CB S2 5,633 6,145 308 278
CB-CA S2 5,614 6,116 308 278
CB-CB S2 5,738 6,293 308 278
REFRIG- REFRIG-
SHELL COM- SHIP- OPER- ERANT ERANT
CODE PRES- PING ATING CHARGE CHARGE
COOLER SOR WT. WT. (Kgs. (Kgs.
–COND. (Kgs.) (Kgs.) R-22) R-134a)
CA-DA S2 6,059 6,697 340 306
CA-DB S2 6,293 7,034 340 306
CB-DA S2 6,164 6,846 340 306
CB-DB S2 6,398 7,182 340 306
DA-CA S2 6,030 6,568 381 343
DA-CB S2 6,159 6,746 381 343
DB-CA S2 6,200 6,808 381 343
DB-CB S2 6,324 6,985 381 343
DC-CA S2 6,362 7,054 381 343
DC-CB S2 6,486 7,232 381 343
DA-DA S2 6,599 7,314 431 388
DA-DB S2 6,834 7,650 431 388
DB-DA S2 6,745 7,533 413 371
DB-DB S2 6,979 7,869 413 371
DC-DA S2 6,902 7,909 381 343
DC-DB S2 7,136 7,612 381 343
CA-CA S3 5,606 6,066 —278
CA-CB S3 5,730 6,243 —278
CB-CA S3 5,711 6,213 —278
CB-CB S3 5,836 6,391 —278
CA-DA S3 6,157 6,796 —306
CA-DB S3 6,391 7,133 —306
CB-DA S3 6,261 6,946 —306
CB-DB S3 6,497 7,282 —306
DA-CA S3 6,122 6,656 381 343
DA-CB S3 6,246 6,833 381 343
DB-CA S3 6,287 6,895 381 343
DB-CB S3 6,411 7,073 381 343
DC-CA S3 6,450 7,141 381 343
DC-CB S3 6,573 7,319 381 343
DA-DA S3 6,687 7,401 431 388
DA-DB S3 6,921 7,737 431 388
DB-DA S3 6,832 7,620 413 371
DB-DB S3 7,066 7,957 413 371
DC-DA S3 6,989 7,862 381 343
DC-DB S3 7,224 8,198 381 343
DA-CA S4 7,742 8,277 —336
DA-CB S4 7,866 8,455 —336
DB-CA S4 7,907 8,517 —336
DB-CB S4 8,031 8,695 —336
DC-CA S4 8,070 8,764 —336
DC-CB S4 8,194 8,940 —336
DA-DA S4 8,307 9,023 —376
DA-DB S4 8,543 9,360 —376
DB-DA S4 8,453 9,243 —363
DB-DB S4 8,688 9,580 —363
DC-DA S4 8,611 9,486 —336
DC-DB S4 8,812 9,821 —336
Installation

11
FORM160.47-NOM3
YORKINTERNATIONAL
NOTE: 1. Calculate total chiller weight by adding motor weight, solid state starter weight, and marine water box weights, if
applicable.
2. Shipping weight includes refrigerant and oil charge. Operating weight includes water in tubes and water boxes.
3. Weights based on standard tubes in coolers and condensers.
4. Operating weight based on R-22. Subtract difference in refrigerant charge if using R-134a.
REFRIG- REFRIG-
SHELL COM- SHIP- OPER- ERANT ERANT
CODE PRES- PING ATING CHARGE CHARGE
COOLER SOR WT. WT. (Kgs. (Kgs.
–COND. (Kgs.) (Kgs.) R-22) R-134a)
EA-EA S5 9,424 10,074 —572
EA-EB S5 9,717 10,462 —572
EB-EA S5 9,650 10,345 —551
EB-EB S5 9,913 10,742 —551
EC-EA S5 9,835 10,642 —531
EC-EB S5 10,125 11,030 —531
EA-FA S5 10,799 11,757 —621
EA-FB S5 11,349 12,484 —621
EB-FA S5 10,995 12,024 —621
EB-FB S5 11,542 12,752 —592
EC-FA S5 11,207 12,325 —592
EC-FB S5 11,757 13,050 —592
FA-EA S5 10,557 11,467 —767
FA-EB S5 10,850 11,855 —767
FB-EA S5 10,882 11,877 —767
FB-EB S5 11,144 12,264 —735
FC-EA S5 11,092 12,409 —735
FC-EB S5 11,532 12,797 —735
FA-FA S5 11,910 13,125 907 816
FA-FB S5 12,459 13,851 907 816
FB-FA S5 12,205 13,532 907 816
FB-FB S5 12,751 14,258 862 776
FC-FA S5 12,591 14,066 862 776
FC-FB S5 13,140 14,789 862 776
REFRIG- REFRIG-
SHELL COM- SHIP- OPER- ERANT ERANT
CODE PRES- PING ATING CHARGE CHARGE
COOLER SOR WT. WT. (Kgs. (Kgs.
–COND. (Kgs.) (Kgs.) R-22) R-134a)
EA-EA S4 9,281 9,929 635 572
EA-EB S4 9,573 10,316 635 572
EB-EA S4 9,505 10,199 612 551
EB-EB S4 9,767 10,586 612 551
EC-EA S4 9,690 10,496 590 531
EC-EB S4 9,979 10,882 590 531
EA-FA S4 10,653 11,609 689 621
EA-FB S4 11,202 12,334 689 621
EB-FA S4 10,847 11,875 689 621
EB-FB S4 11,394 12,601 658 592
EC-FA S4 11,060 12,175 658 592
EC-FB S4 11,609 12,898 658 592
FA-EA S4 10,397 11,339 —767
FA-EB S4 10,722 11,727 —767
FB-EA S4 10,755 11,749 —767
FB-EB S4 11,017 12,137 —767
FC-EA S4 10,964 12,282 —735
FC-EB S4 11,404 12,669 —735
FA-FA S4 11,783 12,998 907 816
FA-FB S4 12,332 13,724 907 816
FB-FA S4 12,078 13,405 907 816
FB-FB S4 12,624 14,131 862 776
FC-FA S4 12,314 13,939 862 776
FC-FB S4 13,013 14,662 862 776
TABLE 3 –WEIGHTS -SI,R-22 AND R-134AUNITS,50 AND60HZ(CONT’D)
1

12 YORKINTERNATIONAL
Installation
RIGGING(CONT’D)
Unitsshippeddismantledshouldbeas-
sembled under the supervision of a
York representative.
Ifthecooler isto befieldinsulated, theinsulation should
be applied while the unit is in the lift position, before the
unit is placed in position.
LOCATING AND INSTALLING ISOLATOR PADS
The isolator pads should be located in accordance with
thefloorlayoutof thedimensionalproduct drawing,Form
160.47-PA1. After the isolator pads have been placed
into position on the floor, lower the unit onto the pads.
Make sure the pads are even with the edges of the
mounting feet. When the unit is in place, remove the
riggingequipment andcheck thatthe chilleris level,both
longitudinally and transversely. See Figure 3.
Thelongitudinal alignmentof theunit shouldbe checked
by placing a level on the top center of the cooler shell
under the compressor/motor assembly. Transverse
alignment should be checked by placing a level on top
of the shell end sheets at each end of the unit.
The unit should be level within 1/4 inch from one end to
the other end and from front to the rear. If the chiller is
not level within the amount specified, lift it and place
shims between the isolation pad and the tube sheets.
CHECKINGTHE ISOLATORPADDEFLECTION
All isolator pads should be checked for the proper de-
flection while checking the level of the unit. Each pad
should be deflected approximately 0.15 inch (4mm). If
anisolator padis underdeflected, shimsshouldbeplaced
between the unit tube sheet and the top of the pad to
equally deflect all pads. Refer to Figure 3.

13
FORM160.47-NOM3
YORKINTERNATIONAL
FIG. 3 –STANDARDNEOPRENEVIBRATION ISOLATORPADMOUNTS
1
LD02942
LD02944
LD02943
OPERATINGWEIGHT (Lbs. / Kgs.) DETAIL
UP TO 16,365 / 7,423 A
16,636 / 7,546 to 28,835 / 13,080 B
28,836 / 13,080 to 53,530 / 24,281 C

14 YORKINTERNATIONAL
LD00068
S0 and S1 COMPRESSOR S2 COMPRESSOR S2 and S3 COMPRESSOR
SHELL CODES (Cooler –Condenser)
B-B B-C C-B C-C B-B B-C C-B C-C C-D D-C D-D
A –TUBE SHEET WIDTH 4'–2-7/8" 5'–2-1/2" 5'–2-1/2"
A
1–OVERALL WIDTH 4'–6-3/4" 4'–6-1/4" 4'-6-3/4" 4'–6-1/4" 5'–3-3/4" 5'–3-3/4"
B –OVERALL HEIGHT35'–8-5/8" 5'–11-1/2" 5'–10-1/4" 5'–11-1/2" 5'–11-1/4" 6'–3-1/4" 6'–3-1/4" 6'–3-1/4" 6'–7-5/8" 6'–8-3/4" 6'–9-3/8"
C –COOLER C/L 1'–1-7/8" 1'–5" 1'–5"
D –CONDENSER C/L 0'–11-5/8" 1'–2-1/4" 1'–2-1/4"
FIG. 4 –OVERALL DIMENSIONS - ENGLISH, S0 THRU S3 COMPRESSOR
Installation

15
FORM160.47-NOM3
YORKINTERNATIONAL
LD00505
S4 COMPRESSOR S4 and S5 COMPRESSOR
DIMENSION SHELL CODES (Cooler –Condenser)
D-C D-D E-E E-F F-E F-F
ATUBE SHEET WIDTH 6'–2" 6'–2" 6'–2" 6'–4-1/2" 6'–6-1/2" 6'–9"
A1 –With SSS 6'–9-7/8" 6'–9-7/8" 6'–9-7/8" 7'–0-3/8" 7'–3-5/8" 7'–2-5/8"
A2–OVERALL WD. (less SSS) 6'–3-3/8" 6'–3-3/8" 6'–2" 6'–4-1/2" 6'–6-1/2" 6'–9"
B –OVERALL HEIGHT37'–9-1/8" 7'–9-1/8" 7'–9-1/8" 8'–2-1/4" 8'–2-1/4" 8'–2-1/4"
C –COOLER C/L 1'–7-3/4" 1'–7-3/4" 1'–7-3/4" 1'–7-3/4" 1'–10" 1'–10"
D –CONDENSER C/L 1'–5-1/4" 1'–5-1/4" 1'–5-1/4" 1'–6-1/2" 1'–5-1/4" 1'–6-1/2"
FIG. 5 –OVERALL DIMENSIONS - ENGLISH, S4 AND S5 COMPRESSOR
1

16 YORKINTERNATIONAL
S0 and S1 COMPRESSOR S2 COMPRESSOR S2 and S3 COMPRESSOR
SHELL CODES (Cooler –Condenser)
B-B B-C C-B C-C B-B B-C C-B C-C C-D D-C D-D
A–TUBE SHEET WIDTH 1,292 1,292 1,292 1,292 1,588 1,588 1,588 1,588 1,588 1,588 1,588
A1–OVERALL WIDTH 1,349 1,349 1,349 1,349 1,591 1,591 1,591 1,591 1,591 1,591 1,591
B–OVERALL HEIGHT31,816 1,895 1,857 1,899 1,848 1,946 1,946 1,946 2,054 2,102 2,102
C–COOLER C/L 351 351 351 351 432 432 432 432 432 432 432
D–CONDENSER C/L 295 295 295 295 362 362 362 362 362 362 362
DIMENSIONS (mm)
LD00506
FIG. 6 –OVERALLDIMENSIONS- STANDARD INTERNATIONAL, S0 THRUS3COMPRESSOR
Installation

17
FORM160.47-NOM3
YORKINTERNATIONAL
FIG. 7 –OVERALLDIMENSIONS-STANDARDINTERNATIONAL, S4 AND S5COMPRESSOR
LD00273A
DIMENSIONS (mm)
S4 COMPRESSOR S4 and S5 COMPRESSOR
SHELL CODES (Cooler –Condenser)
D-C D-D E-E E-F F-E F-F
A–TUBE SHEET WIDTH 1,880 1,880 1,880 1,943 1,994 2,057
A1–WITH SOLID STATE STARTER 2,080 2,080 2,080 2,143 2,226 2,200
A2–OVERALL WIDTH (Less S.S.S) 1,915 1,915 1,880 1,943 1,994 2,057
B–OVERALL HEIGHT32,365 2,365 2,365 2,496 2,496 2,496
C–COOLER C/L 502 502 502 502 559 559
D–CONDENSER C/L 438 438 438 470 438 470
1

18 YORKINTERNATIONAL
INSTALLING OPTIONAL SPRING ISOLATORS
To install these spring isolators, first remove the bolts
and nuts from the spring isolator bracket. Bolt the isola-
tor bracket to the unit foot support before the unit is
located on the floor. Place the four spring isolators in
position in accordance with the product drawing, Form
160.47-PA1. The threaded adjusting bolts in each isola-
tor should be screwed out of the isolator until the ex-
tended head of the screw fits snugly into the isolator
bracket hole. Then the unit is lowered over the adjust-
ing bolts. Refer to Figure 8.
FIG. 8 –SPRINGISOLATORS(OPTIONAL)
LD02946A LD02947A
SPRING ISOLATORS (4 Per Unit) –ENGLISH
COMPRESSOR SYSTEM OPERATING PART NO.
SIZE WEIGHT (Lbs.)
UP to 6,865 029-18479-001
6,866 to 9,818 029-18479-002
S0, S1, 9,819 to 12,182 029-18479-003
S2, S3 12,183 to 15,272 029-18479-004
15,273 to 18,272 029-18480-001
18,273 to 22,909 029-18480-002
UP to 22,909 029-18480-002
S4, S5 22,910 to 26,044 029-18480-003
26,045 to 32,101 029-18480-004
SPRING ISOLATORS (4 Per Unit) –SI
COMPRESSOR SYSTEM OPERATING PART NO.
SIZE WEIGHT (mm)
UP to 3,114 029-18479-001
3,115 to 4,453 029-18479-002
S0, S1, 4,454 to 5,525 029-18479-003
S2, S3 5,526 to 6,927 029-18479-004
6,928 to 8,288 029-18480-001
8,289 to 10,392 029-18480-002
UP to 10,392 029-18480-002
S4, S5 10,392 to 11,813 029-18480-003
11,814 to 14,561 029-18480-004
Installation

19
FORM160.47-NOM3
YORKINTERNATIONAL
CHECKFORPIPINGALIGNMENT
When piping is complete, check for alignment try open-
ing a connection in each line, as close to the unit as
possible, by removing the flange bolts or coupling. If
any of the bolts are bound in their holes, or if the con-
nection springs are out of alignment. The misalignment
must be corrected by properly supporting the piping or
by applying heat to anneal the pipe.
It may be necessary to weld chilled
water piping directly to the water pipe
nozzles. Since chiller water tempera-
ture sensor wells are often in close
proximity to these connection points,
sensorsinthewellsmayoftensee tem-
peratures of several hundred degrees.
We have reason to believe that some
potential exists for damaging these
sensorsfromthetransferredheat.Any
damage will most likely show up as
error in the sensor.
It is advisable to remove the sensors
fromthewellsduringthewelding pro-
cessasaprecautionarymeasure. If the
sensor is removed, assure that it bot-
toms out when it is placed back in the
well.
This same precaution should also be
observed whenever condenser water
temperaturesensorsarepresent in the
chiller system and condenser water
piping is to be welded to the chiller.
If the piping is annealed to relieve
stress, the inside of the pipe must be
cleaned of scale before it is finally
bolted in place.
The adjusting bolts should now be rotated one (1) turn
at a time, in sequence, until the unit end sheets are about
7/8 inch (22mm) off the floor or foundation, and the unit
is level. Check the level of the unit both longitudinally
andtransversly.If theadjusting boltsare notlong enough
to level the unit due to an uneven or sloping floor or
foundation, steel shims (grouted, if necessary) must be
added beneath the isolator assemblies as necessary.
After the unit is leveled, wedge and shim under each
corner to solidly support the unit in this position while
piping connections are being made, pipe hangers ad-
justed and connections checked for alignment. Then the
unit can be filled with water and checked for leaks. The
adjusting bolts should now be finally adjusted and the
wedges and shims can be removed. The unit should
now be in correct level position, clear of the floor or
foundation and without any effect from the weight of
the piping. When the unit is properly supported, spring
isolator deflection should be approximately 1 inch
(25mm).
PIPINGCONNECTIONS
After the unit is leveled (and wedged in place for op-
tional spring isolators) the piping connections may be
fabricated; chilled water, condenser water and refriger-
ant relief. The piping should be arranged with offsets
for flexibility, and adequately supported and braced in-
dependently of the unit to avoid strain on the unit and
vibration transmission. Hangers must allow for align-
mentof pipe.Isolators (byothers) inthe pipingandhang-
ers are highly desirable, and may be required by speci-
fications. This is done to effectively utilize the vibration
isolation characteristics of the isolator mounts on the
unit.
1

20 YORKINTERNATIONAL
COOLERAND CONDENSERWATER PIPING
The cooler and condenser liquid heads of YS units have
nozzleswhich aregrooved, suitablefor welding150 psig
(1034 kPa) DWP flanges or the use of Victaulic cou-
plings.
The nozzles and water pass arrangements are furnished
in accordance with the job requirements (see Product
Drawing,Form 160.47-PA1).Standard unitsaredesigned
for 150 psig (1034 kPa) DWP on the water side. If job
requirements are for greater than 150 psig (1034 kPa)
DWP, check the unit data plate to determine if the unit
has provisions for the required DWP before applying
pressure to cooler or condenser.
COOLINGUNITS–CHILLEDWATER
Chilled water must leave the cooler through the con-
nectionmarked“Liquid Outlet”.Cooling watermust en-
ter the condenser through the connection marked “Liq-
uid Inlet”. Refer to Figure 9.
Foreign objects which could lodge in, or block flow
through, the cooler and condenser tubes must be kept
outofthe watercircuit. Allwater pipingmust be cleaned
or flushed before being connected to the unit, pumps, or
other equipment.
Permanent strainers (by others) are required in both the
cooler and condenser water circuits to protect the unit
as well as the pumps, tower spray nozzles, chilled water
coils and controls, etc. The strainer, meeting York speci-
ficationsshouldbe installedin theentering chilled water
line, directly up-stream of the unit.
Water piping circuits should be arranged so that the
pumps discharge through the unit. The circuits should
be controlled as necessary to maintain essentially con-
stant chilled and condenser water flows through the unit
at all load conditions.
If pumps discharge through the unit, the strainer may be
located upstream from the pumps to protect both pump
and unit. (Piping between the strainer, pump and unit
must be very carefully cleaned before start-up.) If
pumps are remotely installed from the unit, strainers
should be located directly upstream.
COOLINGUNITS–CONDENSERWATER CIRCUIT
For proper operation of the unit, condenser refrigerant
pressure must be maintained above cooler pressure. If
operating conditions will fulfil this requirement, no at-
tempt should be made to control condenser water tem-
perature by means of automatic valves, cycling of the
cooling tower fan or other means. YS units are designed
tofunction satisfactorilyandefficiently, whencondenser
water is allowed to seek its own temperature level at
reduced loads and off-peak seasons of the year. How-
ever, if entering condenser water temperature can go
below the required minimum, condenser water tempera-
ture must be maintained equal to or slightly higher than
the required minimum. Refer to Figure 9 for a typical
water piping schematic for the cooling unit.
STOP VALVES
Stop valves may be provided (by others) in the cooler
and condenser water piping, adjacent to the unit to ease
maintenance. Pressure taps should be provided (by oth-
Installation
FIG. 9 –SCHEMATICOFA TYPICALPIPINGARRANGEMENT FORCOOLINGUNITS LD03299