Sterlco AquaSnap 30RAN010 User manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 903 Catalog No. 533-00045 Printed in U.S.A. Form 30RA-12SI Pg 1 7-02 Replaces: 30RA-1SI
Book 2
Ta b 5 c
Installation Instructions
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
Step 1 — Rig and Place the Unit. . . . . . . . . . . . . . . . . . 1
• RIGGING
• PLACING UNIT
• MOUNTING UNIT
Step 2 — Check Compressor Mounting . . . . . . . . . . 3
Step 3 — Cooler Fluid and Drain Piping
Connections (Units Without
Hydronic Packages). . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
• PREPARATION FOR YEAR-ROUND
OPERATION
• PREPARATION FOR WINTER SHUTDOWN
Step 4 — Cooler Fluid and Drain Piping
Connections (Units With Factory-Installed
Hydronic Packages). . . . . . . . . . . . . . . . . . . . . . . . . . . 12
• WATER SYSTEM OVERVIEW
•AIRSEPARATION
• WATER CONNECTIONS
• WATER SYSTEM CLEANING
• SYSTEM PRESSURIZATION
• FILLING THE SYSTEM
Step 5 — Make Electrical Connections . . . . . . . . . . 18
• POWER SUPPLY
• POWER WIRING
• FIELD CONNECTIONS
Step 6 — Install Accessories . . . . . . . . . . . . . . . . . . . . 18
• ELECTRICAL
Step 7 — Refrigerant Circuit. . . . . . . . . . . . . . . . . . . . . 24
• LEAK TESTING
• DEHYDRATION
• REFRIGERANT CHARGE
APPENDIX A (Pressure Drop Curves,
30RA010-055) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-27
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning equip-
ment can be hazardous due to system pressures, electrical
components, and equipment location (roofs, elevated struc-
tures, etc.).
Only trained, qualified installers and service mechanics
should install, start up, and service this equipment (Fig. 1).
Untrained personnel can perform basic maintenance func-
tions such as cleaning coils. All other operations should be
performed by trained service personnel.
When working on the equipment, observe precautions in the
literature and on tags, stickers, and labels attached to the
equipment.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Keep quenching cloth and fire extinguisher nearby when
brazing.
• Use care in handling, rigging, and setting bulky
equipment. See Tables 1A-1D for Physical Data. Refer
to Fig. 2 for unit weights.
INSTALLATION
Step 1 — Rig and Place the Unit
RIGGING — Preferred method is with spreader bars from
above the unit. Use hooks in lifting holes. Rig at a single point
with 4 cables or use spreader bars. All panels must be in place
when rigging. See rigging label on unit for details concerning
shipping weights, distance between lifting holes, center of
gravity, and lifting ring dimensions. See Fig. 3.
If overhead rigging is not possible, place chiller on skid or
pad for rolling or dragging. When rolling, use a minimum of
3 rollers. When dragging, pull the pad. Do not apply force to
the unit. When in final position, raise from above to lift unit
off pad.
PLACING UNIT — There must be at least 3 ft (.9 m) for ser-
vice and for unrestricted airflow on all non-coil sides of unit,
and a minimum of 3.5 ft (1.1 m) clear air space on coil sides.
For multiple units, allow 8 ft (2.48 m) separation between units
for airflow and service.
MOUNTING UNIT — When unit is in proper location, use
of mounting holes in base rails is recommended for securing
unit to supporting structure, or for mounting unit on vibration
isolators if required. See Fig. 3. Fasteners for mounting unit are
field supplied. Be sure unit is level to within 1/8in. per foot for
proper oil return to compressor.
ELECTRIC SHOCK HAZARD
Open all remote disconnects before servicing
this equipment.
All panels must be in place when rigging.
30RAN010-055
AquaSnapTM Liquid Chillers
With ComfortLinkTM Controls
50/60 Hz
Fig. 1 — Typical 30RA Unit (010-018 Shown)

2
CONTROL
BOX END
B
C
A
D
60 Hz
STD UNITS (without hydronic package)
SINGLE PUMP UNITS
DUAL PUMP UNITS
50 Hz
STD UNITS (without hydronic package)
SINGLE PUMP UNITS
DUAL PUMP UNITS
LEGEND
30RA
SIZE
POUNDS —ALUMINUM 30RA
SIZE
POUNDS —COPPER
ABCDTota l
Weight ABCDTot al Weight
010 182 210 255 299 946 010 194 231 274 326 1025
015 197 245 291 335 1068 015 216 280 321 382 1199
018 206 268 377 358 1209 018 220 303 411 404 1338
022 336 451 381 355 1523 022 364 521 418 410 1713
025 350 464 395 380 1589 025 380 532 432 436 1780
030 378 518 409 400 1705 030 409 606 441 474 1930
035 748 642 604 850 2844 035 854 721 691 958 3224
040 763 653 616 882 2914 040 869 731 702 992 3294
045 860 709 746 903 3218 045 965 790 833 1011 3599
050 876 721 770 946 3313 050 978 805 859 1051 3693
055 977 753 831 954 3515 055 1096 857 931 1082 3966
30RA
SIZE
KILOGRAMS —ALUMINUM 30RA
SIZE
KILOGRAMS —COPPER
ABCDTota l
Weight ABCDTot a l Weight
010 83 95 116 136 430 010 88 105 124 148 465
015 89 111 132 152 484 015 98 127 146 173 544
018 93 122 171 162 548 018 100 137 186 183 606
022 152 205 173 161 691 022 165 236 190 186 777
025 159 210 179 172 720 025 172 241 196 198 807
030 171 235 186 181 773 030 186 275 200 215 876
035 339 291 274 386 1290 035 387 327 313 435 1462
040 346 296 279 400 1321 040 394 332 318 450 1494
045 390 322 338 410 1460 045 438 358 378 459 1633
050 397 327 349 429 1502 050 444 365 390 477 1676
055 443 342 377 433 1595 055 497 389 422 491 1799
30RA
SIZE
POUNDS —ALUMINUM 30RA
SIZE
POUNDS —COPPER
ABCDTotal
Weight ABCDTotal Weight
010 209 241 293 343 1086 010 221 262 312 370 1165
015 223 277 329 379 1208 015 242 312 359 426 1339
018 230 299 421 399 1349 018 244 334 455 445 1478
022 367 492 416 388 1663 022 395 562 453 443 1853
025 381 505 430 413 1729 025 411 573 467 469 1920
030 409 561 443 433 1845 030 440 649 475 507 2070
035 801 687 646 910 3044 035 907 766 733 1018 3424
040 815 698 658 943 3114 040 921 776 744 1053 3494
045 913 753 792 959 3418 045 1018 834 879 1067 3799
050 929 765 816 1003 3513 050 1031 849 905 1108 3893
055 1033 796 878 1008 3715 055 1152 900 978 1136 4166
30RA
SIZE
KILOGRAMS —ALUMINUM 30RA
SIZE
KILOGRAMS —COPPER
ABCDTo t a l
Weight ABCDTot al Weight
010 95 109 133 156 493 010 108 129 152 181 570
015 101 126 149 172 548 015 117 151 174 206 648
018 104 136 191 181 612 018 117 161 218 215 711
022 166 224 189 176 755 022 187 268 215 211 881
025 173 229 195 187 784 025 194 272 221 224 911
030 185 254 201 196 836 030 208 308 224 241 981
035 363 311 293 413 1380 035 422 356 341 474 1593
040 370 316 298 427 1411 040 429 361 346 490 1626
045 414 342 359 435 1550 045 473 387 408 496 1764
050 421 347 370 455 1593 050 479 394 421 514 1808
055 468 361 398 458 1685 055 533 417 453 527 1930
30RA
SIZE
POUNDS —ALUMINUM 30RA
SIZE
POUNDS —COPPER
ABCDTotal
Weight ABCDTot al Weight
010 226 262 316 372 1176 010 238 283 335 399 1255
015 238 299 353 408 1298 015 257 334 383 455 1429
018 244 320 448 427 1439 018 258 355 482 473 1568
022 385 521 437 410 1753 022 413 591 474 465 1943
025 399 533 451 436 1819 025 429 601 488 492 2010
030 427 590 462 456 1935 030 458 678 494 530 2160
035 825 707 666 936 3134 035 931 786 753 1044 3514
040 840 717 678 969 3204 040 946 795 764 1079 3584
045 938 773 813 984 3508 045 1043 854 900 1092 3889
050 953 784 837 1029 3603 050 1055 868 926 1134 3983
055 1057 816 899 1033 3805 055 1176 920 999 1161 4256
30RA
SIZE
KILOGRAMS —ALUMINUM 30RA
SIZE
KILOGRAMS —COPPER
ABCDTota l
Weight ABCDTot a l Weight
010 103 119 144 169 535 010 108 129 152 181 570
015 108 135 160 185 588 015 117 151 174 206 648
018 110 146 203 194 653 018 117 161 218 215 711
022 174 237 198 186 795 022 187 268 215 211 881
025 181 241 204 198 824 025 194 272 221 224 911
030 193 268 210 207 878 030 208 308 224 241 981
035 374 320 302 425 1421 035 422 356 341 474 1593
040 381 325 307 440 1453 040 429 361 346 490 1626
045 425 351 368 447 1591 045 473 387 408 496 1764
050 432 356 380 466 1634 050 479 394 421 514 1808
055 479 370 408 469 1726 055 533 417 453 527 1930
30RA
SIZE
POUNDS —ALUMINUM 30RA
SIZE
POUNDS —COPPER
ABCDTota l
Weight ABCDTo ta l Weight
010 186 211 262 317 976 010 198 232 281 346 1057
015 190 242 456 304 1192 015 200 280 494 349 1323
018 205 268 378 358 1209 018 219 304 412 403 1338
022 340 453 388 374 1555 022 368 520 425 431 1744
025 354 468 410 398 1630 025 382 534 448 456 1820
032 746 641 604 848 2839 032 851 717 691 960 3219
035 768 652 620 911 2951 035 872 729 708 1022 3331
042 867 714 761 937 3279 042 968 795 851 1045 3659
045 886 729 800 985 3400 045 1009 823 904 1115 3851
30RA
SIZE
KILOGRAMS —ALUMINUM 30RA
SIZE
KILOGRAMS —COPPER
ABCDTota l
Weight ABCDTot a l Weight
010 84 96 119 144 443 010 90 105 127 157 479
015 86 110 207 138 541 015 91 127 224 158 600
018 93 122 171 162 548 018 99 138 187 183 607
022 154 205 176 170 705 022 167 236 193 195 791
025 161 212 186 181 740 025 173 242 203 207 825
032 338 291 274 385 1288 032 386 325 313 435 1459
035 348 296 281 413 1338 035 396 331 321 464 1512
042 393 324 345 425 1487 042 439 361 386 474 1660
045 402 331 363 447 1543 045 458 373 410 506 1747
30RA
SIZE
POUNDS —ALUMINUM 30RA
SIZE
POUNDS —COPPER
ABC D Total
Weight ABCDTo ta l Weight
010 213 241 300 362 1116 010 225 262 319 391 1197
015 212 270 510 340 1332 015 222 308 548 385 1463
018 229 299 422 399 1349 018 243 335 456 444 1478
022 371 494 423 408 1695 022 399 561 460 465 1884
025 384 508 445 432 1770 025 412 574 483 490 1960
032 799 686 647 908 3039 032 904 762 734 1020 3419
035 820 696 662 973 3151 035 924 773 750 1084 3531
042 920 758 807 994 3479 042 1021 839 897 1102 3859
045 938 772 847 1043 3600 045 1061 866 951 1173 4051
30RA
SIZE
KILOGRAMS —ALUMINUM 30RA
SIZE
KILOGRAMS —COPPER
ABCDTota l
Weight ABCDTot a l Weight
010 96 110 136 165 507 010 102 119 144 178 543
015 96 123 231 154 604 015 101 140 248 174 663
018 104 136 191 181 612 018 110 152 207 202 671
022 168 223 192 185 768 022 181 254 209 210 854
025 175 230 202 197 804 025 187 260 219 223 889
032 362 311 293 412 1378 032 410 345 332 462 1549
035 372 316 300 441 1429 035 420 351 340 492 1603
042 417 344 366 451 1578 042 463 381 407 500 1751
045 426 350 384 473 1633 045 482 392 431 532 1837
30RA
SIZE
POUNDS —ALUMINUM 30RA
SIZE
POUNDS —COPPER
ABC D Total
Weight ABCDTo ta l Weight
010 213 241 300 362 1116 010 241 282 342 421 1287
015 212 270 510 340 1332 015 235 329 580 410 1553
018 229 299 422 399 1349 018 257 356 483 472 1568
022 371 494 423 408 1695 022 417 589 481 488 1974
025 384 508 445 432 1770 025 430 601 505 514 2050
032 799 686 647 908 3039 032 928 782 753 1046 3509
035 820 696 662 973 3151 035 948 792 770 1111 3621
042 920 758 807 994 3479 042 1045 858 918 1128 3949
045 938 772 847 1043 3600 045 1085 885 972 1199 4141
30RA
SIZE
KILOGRAMS —ALUMINUM 30RA
SIZE
KILOGRAMS —COPPER
ABCDTota l
Weight ABCDTot a l Weight
010 96 110 136 165 507 010 110 128 155 191 584
015 96 123 231 154 604 015 107 149 263 186 706
018 104 136 191 181 612 018 116 162 219 214 711
022 168 223 192 185 768 022 189 267 218 221 895
025 175 230 202 197 804 025 195 273 229 233 930
032 362 311 293 412 1378 032 421 354 341 474 1590
035 372 316 300 441 1429 035 430 360 349 504 1643
042 417 344 366 451 1578 042 474 390 417 512 1793
045 426 350 384 473 1633 045 492 401 441 544 1878
Aluminum —Aluminum Condenser Coil Fins
Copper —Copper Condenser Coil Fins
Fig. 2 —Unit Operating Weights

3
Step 2 —Check Compressor Mounting —As
shipped, each compressor is held down by 4 bolts. After unit is
installed, verify mounting bolt torque 12 to14 ft-lb.
Step 3 —Cooler Fluid and Drain Piping Con-
nections (Units Without Hydronic Packages) —
These chillers are supplied with factory-installed strainer
(including blow-down valve) in the entering fluid piping and
flow switch in the leaving fluid piping. Flow switch wiring is
factory installed.
Piping connections are located on the left side of the chiller
when facing the control panel for 010-030 sizes and at the end
opposite the control panel for 032-055 sizes. See Fig. 4-9
depending on model.
All sizes have FPT connections as shown in the Physical
Data tables. Provide a means of venting air from the high point
of the field-installed piping as required. Install field-supplied
drains in both the entering and leaving fluid connections.
After field piping is complete, freeze-up protection is rec-
ommended using inhibited ethylene glycol or other suitable in-
hibited antifreeze solution and electric heat tapes in areas
where piping is exposed to low ambient temperatures (34 F
[1 °C] or below). Heat tapes should possess a rating for area
ambients and be covered with a suitable thickness of closed-
cell insulation. Route power for heating tapes from a separately
fused disconnect. Identify disconnect as heat tape power source
with a warning that power must not be turned off except when
unit is being serviced.
The cooler drain connection is at the opposite end from the
compressor (see Fig. 4-9). Insulate the drain piping (in the
same manner as the chilled water piping) for at least one ft
(305 mm) from cooler.
PREPARATION FOR YEAR-ROUND OPERATION — If
unit is in operation year-round, add sufficient inhibited ethyl-
ene glycol or other suitable inhibited antifreeze solution to
chilled water to prevent freezing under low-ambient operating
conditions. Consult local water treatment specialist on charac-
teristics of water and recommended inhibitor.
PREPARATION FOR WINTER SHUTDOWN — Do not
shut off electrical disconnect during off-season shutdown. At
end of cooling season:
1. Position LOCAL/OFF/REMOTE switch to OFF.
2. Drain water from system.
3. Replace drain plug and put 2 gallons (8 liters) of inhibited
ethylene glycol (or other suitable inhibited anti-freeze) in
cooler to prevent freezing of residual water.
4. At the beginning of the next cooling season, refill cooler
and add recommended inhibitor.
Fig. 3 —Unit Rigging Label Detail
*C —Copper Finned Condenser Coil.
UNIT
MAX
SHIP WT
W/O
PACKAGING
MAX
SHIP WT
W/
PACKAGING
LIFTING HOLES CENTER OF
GRAVITY
Lb Kg Lb Kg in. mm in. mm in. mm in. mm
30RA032 2791 1266 2965 1345 105.44 2678 87.00 2210 43.87 1114 46.00 1168
30RA032 C* 3171 1438 3345 1517
30RA035-60Hz 2796 1268 2970 1347 105.44 2678 87.00 2210 43.87 1114 46.00 1168
30RA035-60Hz C* 3176 1441 3350 1520
30RA035-50Hz 2896 1314 3070 1393 105.44 2678 87.00 2210 43.87 1114 46.00 1168
30RA035-50Hz C* 3276 1486 3450 1565
30RA040 2856 1295 3030 1374 105.44 2678 87.00 2210 43.87 1114 46.00 1168
30RA040 C* 3236 1468 3410 1547
30RA042 3231 1466 3405 1544 105.44 2678 87.00 2210 43.75 1111 45.00 1143
30RA042 C* 3611 1638 3785 1717
30RA045-60Hz 3163 1435 3337 1514 105.44 2678 87.00 2210 43.75 1111 45.00 1143
30RA045-60Hz C* 3544 1608 3718 1686
30RA045-50Hz 3345 1517 3519 1596 105.44 2678 87.00 2210 43.75 1111 45.00 1143
30RA045-50Hz C* 3796 1722 3970 1801
30RA050 3251 1475 3425 1554 105.44 2678 87.00 2210 43.75 1111 45.00 1143
30RA050 C* 3631 1647 3805 1726
30RA055 3444 1562 3618 1641 105.44 2678 87.00 2210 43.75 1111 45.00 1143
30RA055 C* 3895 1767 4069 1846
UNIT
MAX
SHIP WT
W/O
PACKAGING
MAX
SHIP WT
W/
PACKAGING
LIFTING HOLES CENTER OF
GRAVITY
Lb Kg Lb Kg in. mm in. mm in. mm in. mm
30RA010-60Hz 937 425 1000 454 78.80 2001 40.00 1016 33.75 857 22.00 559
30RA010-60Hz C* 1016 461 1079 489
30RA010-50Hz 967 439 1030 467 78.80 2001 40.00 1016 33.75 857 22.22 559
30RA010-50Hz C* 1048 475 1111 504
30RA015-60Hz 1055 479 1118 507 78.80 2001 40.00 1016 34.00 864 21.50 546
30RA015-60Hz C* 1186 538 1249 567
30RA015-50Hz 1179 535 1242 563 78.80 2001 40.00 1016 29.75 756 17.87 454
30RA015-50Hz C* 1310 594 1373 623
30RA018 1193 541 1256 570 78.80 2001 40.00 1016 32.12 816 20.12 511
30RA018 C* 1322 600 1385 628
30RA022-60Hz 1503 682 1591 722 105.44 2678 40.00 1016 42.25 1073 19.75 502
30RA022-60Hz C* 1693 768 1781 808
30RA022-50Hz 1535 696 1623 736 105.44 2678 40.00 1016 42.25 1073 19.75 502
30RA022-50Hz C* 1724 782 1812 822
30RA025-60Hz 1565 710 1653 750 105.44 2678 40.00 1016 42.25 1073 19.75 502
30RA025-60Hz C* 1756 797 1844 836
30RA025-50Hz 1606 728 1694 768 105.44 2678 40.00 1016 42.25 1073 19.75 502
30RA025-50Hz C* 1796 815 1884 855
30RA030 1677 761 1765 801 105.44 2678 40.00 1016 42.25 1073 19.75 502
30RA030 C* 1902 863 1990 903

4
Table 1A —Physical Data, 30RA —60 Hz English
Table 1B —Physical Data, 30RA —50 Hz English
LEGEND
TXV —Thermostatic Expansion Valve
*Flow switch and strainer are standard on all units, with or without hydronic package.
NOMINAL INPUT HP FOR COMPRESSORS
UNIT 30RA 010 015 018 022 025 030 035 040 045 050 055
REFRIGERANT TYPE R-22, TXV Controlled System
Refrigerant Charge (lb) Ckt A/Ckt B 18/— 27/— 36/— 37/— 38/— 48/— 44/30 45/30 44/44 45/45 55/55
COMPRESSORS Scroll, Hermetic
Quantity 11222233444
Speed (Rpm) 3500
(Qty) Ckt A (1) SM125 (1) SM185 (2) SM110 (1) SM115,
(1) SM160 (2) SM160 (2) SM185 (1) SM115, (1) SM160 (2) SM160 (1) SM125, (1) SM160 (2) SM160 (2) SM185
(Qty) Ckt B ——————(1)SM185(1)SM185
(1) SM125,
(1) SM160 (2) SM160 (2) SM185
Oil Charge (Compressor/Pt) SM110/5.7, SM115/6.7, SM125/6.7, SM160/7.0, SM185/11.6
No. Capacity Steps
Standard 11222233444
Optional (Maximum) 22333344555
Minimum Capacity Step (%)
Standard 100 100 50 42 50 50 25 32 22 25 25
Optional 69 79 32 27 38 39 16 24 15 19 20
COOLER Welded, Direct-Expansion Plate Heat Exchanger
Net Fluid Volume (gal) 1.12 1.61 1.86 2.41 2.84 3.40 6.30 7.00 6.55 7.44 8.56
Maximum Refrigerant Pressure (psig) 450 450 450 450 450 450 450 450 450 450 450
Maximum Fluid Side Pressure
Without Pump(s) (psig) 150 150 150 150 150 150 150 150 150 150 150
Maximum Fluid Side Pressure
With Pump(s) (psig) 150 150 150 150 150 150 150 150 150 150 150
FLUID CONNECTIONS (in.)
Inlet and Outlet, FPT 2222222
1/221/221/221/221/2
Drain (NPT) 1/21/21/21/21/21/21/21/21/21/21/2
CONDENSER FANS
Standard Low Noise Type
Fan Speed (Rpm)
Standard/Low Noise 1140/570 1140/570 1140/570 —/850 —/850 —/850 —/850 —/850 —/850 —/850 —/850
No. Blades...Diameter (in.)
Ckt A/Ckt B 15...30/— 15...30/— 15...30/— 11...30/— 11...30/— 11...30/— 11...30/
11...30
11...30/
11...30
11...30/
11...30
11...30/
11...30
11...30/
11...30
No. Fans...Total kW 1...1.8 1...1.8 1...1.8 2...2.0 2...2.0 2...2.0 2...2.0 (A),
1...1.8 (B)
2...2.0 (A),
1...1.8 (B) 4...4.0 4...4.0 4...4.0
Total Airflow (Cfm) 10,500 10,500 10,500 13,600 13,600 14,500 21,000 21,000 27,300 27,300 29,000
CONDENSER COILS
Quantity...No. Rows 1...2 1...3 1...3 1...3 1...3 1...3 2...3 2...3 2...3 2...3 2...3
Total Face Area (sq ft) 23 23 23 32 32 40 55 55 64 64 80
HYDRONIC MODULE (Optional)* Pump(s), Strainer W/Blowdown Valve, Expansion Tank, Pressure Gages, Drain and Vent Plugs, Flow Switch, and Balance Valve
Pump Single or Dual, Close-Coupled Centrifugal Pump(s), 3500 Rpm
Expansion Tank Volume (gal) 4.4 10.3
UNIT 30RA 010 015 018 022 025 032 035 042 045
REFRIGERANT TYPE R-22, TXV Controlled System
Refrigerant Charge (lb) Ckt A/Ckt B 18/— 27/— 36/— 37/— 38/— 44/30 44/30 44/44 44/44
COMPRESSORS Scroll, Hermetic
Quantity 122223344
Speed (Rpm) 2900
(Qty) Ckt A (1) SM160 (2) SM110 (2) SM125 (2) SM160 (2) SM185 (1) SM115,
(1) SM160 (2) SM185 (2) SM160 (2) SM185
(Qty) Ckt B —————(1)SM185(1)SM185(2)SM160(2)SM185
Oil Charge (Compressor/Pt) SM110/5.7, SM115/6.7, SM125/6.7, SM160/7.0, SM185/11.6
No. Capacity Steps
Standard 122223344
Optional (Maximum) 233334455
Minimum Capacity Step (%)
Standard 1005050504025332525
Optional 71 28 31 35 37 15 25 18 19
COOLER Welded, Direct-Expansion Plate Heat Exchanger
Net Fluid Volume (gal) 1.12 1.61 1.86 2.41 2.84 5.77 6.55 6.77 6.55
Maximum Refrigerant Pressure (psig) 450 450 450 450 450 450 450 450 450
Maximum Fluid Side Pressure
Without Pump(s) (psig) 150 150 150 150 150 150 150 150 150
Maximum Fluid Side Pressure
With Pump(s) (psig) 150 150 150 150 150 150 150 150 150
FLUID CONNECTIONS (in.)
Inlet and Outlet, FPT 222222
1/221/221/221/2
Drain (NPT) 1/21/21/21/21/21/21/21/21/2
CONDENSER FANS
Standard Low Noise Type
Fan Speed (Rpm)
Standard/Low Noise 950/475 950/475 950/475 —/700 —/700 —/700 —/700 —/700 —/700
No. Blades...Diameter (in.)
Ckt A/Ckt B 15...30/— 15...30/— 15...30/— 11...30/— 11...30/— 11...30/
11...30
11...30/
11...30
11...30/
11...30
11...30/
11...30
No. Fans...Total kW 1...1.8 1...1.8 1...1.8 2...2.0 2...2.0 2...2.0 (A),
1...1.8 (B)
2...2.0 (A),
1...1.8 (B) 4...4.0 4...4.0
Total Airflow (Cfm) 8,750 8,750 8,750 11,330 11,330 17,500 17,500 22,750 22,750
CONDENSER COILS
Quantity...No. Rows 1...2 1...3 1...3 1...3 1...3 2...3 2...3 2...3 2...3
Total Face Area (sq ft) 23 23 23 32 32 55 55 64 64
HYDRONIC MODULE (Optional)* Pump(s), Strainer W/Blowdown Valve, Expansion Tank, Pressure Gages, Drain and Vent Plugs, Flow Switch, and Balance Valve
Pump Single or Dual, Close-Coupled Centrifugal Pump(s), 2900 Rpm
Expansion Tank Volume (gal) 4.4 10.3
COMPRESSOR 60 Hz 50 Hz
SM110 12.5 10.5
SM115 13.5 11.2
SM125 14.7 12.0
SM160 19.1 15.6
SM185 21.8 18.3

5
Table 1C —Physical Data, 30RA —60 Hz SI
Table 1D —Physical Data, 30RA —50 Hz SI
LEGEND
TXV —Thermostatic Expansion Valve
*Flow switch and strainer are standard on all units, with or without hydronic package.
NOMINAL INPUT HP FOR COMPRESSORS
UNIT 30RA 010 015 018 022 025 030 035 040 045 050 055
REFRIGERANT TYPE R-22, TXV Controlled System
Refrigerant Charge (kg) Ckt A/Ckt B 8.2/— 12.2/— 16.3/— 16.8/— 17.2/— 21.8/— 20.0/13.6 20.4/13.6 20.0/20.0 20.4/20.4 25.0/25.0
COMPRESSORS Scroll, Hermetic
Quantity 11222233444
Speed (r/s) 58.3
(Qty) Ckt A (1) SM125 (1) SM185 (2) SM110 (1) SM115,
(1) SM160 (2) SM160 (2) SM185 (1) SM115, (1) SM160 (2) SM160 (1) SM125, (1) SM160 (2) SM160 (2) SM185
(Qty) Ckt B ——————(1)SM185(1)SM185
(1) SM125,
(1) SM160 (2) SM160 (2) SM185
Oil Charge (Compressor/L) SM110/2.7, SM115/3.2, SM125/3.2, SM160/3.3, SM185/5.5
No. Capacity Steps
Standard 11222233444
Optional (Maximum) 22333344555
Minimum Capacity Step (%)
Standard 100 100 50 42 50 50 25 32 22 25 25
Optional 69 79 32 27 38 39 16 24 15 19 20
COOLER Welded, Direct-Expansion Plate Heat Exchanger
Net Fluid Volume (L) 4.22 6.08 7.03 9.12 10.75 12.84 23.84 26.49 24.79 28.12 32.34
Maximum Refrigerant Pressure (kPa) 3103 3103 3103 3103 3103 3103 3103 3103 3103 3103 3103
Maximum Fluid Side Pressure
Without Pump(s) (kPa) 1034 1034 1034 1034 1034 1034 1034 1034 1034 1034 1034
Maximum Fluid Side Pressure
With Pump(s) (kPa) 1034 1034 1034 1034 1034 1034 1034 1034 1034 1034 1034
FLUID CONNECTIONS (mm)
Inlet and Outlet, FPT 50.8 50.8 50.8 50.8 50.8 50.8 63.5 63.5 63.5 63.5 63.5
Drain (NPT) 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7
CONDENSER FANS
Standard Low Noise Type
Fan Speed (r/s)
Standard/Low Noise 19/9.5 19/9.5 19/9.5 —/14.2 —/14.2 —/14.2 —/14.2 —/14.2 —/14.2 —/14.2 —/14.2
No. Blades...Diameter (mm)
Ckt A/Ckt B 15...762/— 15...762/— 15...762/— 11...762/— 11...762/— 11...762/— 11...762/
15...762
11...762/
15...762
11...762/
11...762
11...762/
11...762
11...762/
11...762
No. Fans...Total kW 1...1.8 1...1.8 1...1.8 2...2.0 2...2.0 2...2.0 2...2.0 (A),
1...1.8 (B)
2...2.0 (A),
1...1.8 (B) 4...4.0 4...4.0 4...4.0
Total Airflow (L/s) 4,955 4,955 4,955 6,419 6,419 6,843 9,595 9,595 12,884 12,884 13,687
CONDENSER COILS
Quantity...No. Rows 1...2 1...3 1...3 1...3 1...3 1...3 2...3 2...3 2...3 2...3 2...3
Total Face Area (sq m) 2.14 2.14 2.14 2.97 2.97 3.72 5.11 5.11 5.95 5.95 7.43
HYDRONIC MODULE (Optional)* Pump(s), Strainer W/Blowdown Valve, Expansion Tank, Pressure Gages, Drain and Vent Plugs, Flow Switch, and Balance Valve
Pump Single or Dual, Close-Coupled Centrifugal Pump(s), 58.3 r/s
Expansion Tank Volume (L) 16.5 39
UNIT 30RA 010 015 018 022 025 032 035 042 045
REFRIGERANT TYPE R-22, TXV Controlled System
Refrigerant Charge (kg) Ckt A/Ckt B 8.2/— 12.2/— 16.3/— 16.8/— 17.2/— 20.0/13.6 20.0/13.6 20.0/20.0 20.0/20.0
COMPRESSORS Scroll, Hermetic
Quantity 122223344
Speed (r/s) 48.3
Quantity —Ckt A (1) SM160 (2) SM110 (2) SM125 (2) SM160 (2) SM185 (1) SM115,
(1) SM160 (2) SM185 (2) SM160 (2) SM185
Quantity —Ckt B — — — — — (1) SM185 (1) SM185 (2) SM160 (2) SM185
Oil Charge (Compressor/L) SM110/2.7, SM115/3.2, SM125/3.2, SM160/3.3, SM185/5.5
No. Capacity Steps
Standard 122223344
Optional (Maximum) 233334455
Minimum Capacity Step (%)
Standard 100 50 50 50 50 25 33 25 25
Optional 71 28 31 35 37 15 25 18 19
COOLER Welded, Direct-Expansion Plate Heat Exchanger
Net Fluid Volume (L) 4.22 6.08 7.03 9.12 10.75 21.82 24.77 21.82 24.77
Maximum Refrigerant Pressure (psig) 3103 3103 3103 3103 3103 3103 3103 3103 3103
Maximum Fluid Side Pressure
Without Pump(s) (kPa) 1034 1034 1034 1034 1034 1034 1034 1034 1034
Maximum Fluid Side Pressure
With Pump(s) (kPa) 1034 1034 1034 1034 1034 1034 1034 1034 1034
FLUID CONNECTIONS (mm)
Inlet and Outlet, FPT 50.8 50.8 50.8 50.8 50.8 63.5 63.5 63.5 63.5
Drain (NPT) 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7
CONDENSER FANS
Standard Low Noise Type
Fan Speed (r/s)
Standard/Low Noise 15.8/7.9 15.8/7.9 15.8/7.9 —/11.7 —/11.7 —/11.7 —/11.7 —/11.7 —/11.7
No. Blades...Diameter (mm)
Ckt A/Ckt B 15...762/— 15...762/— 15...762/— 11...762/— 11...762/— 11...762/
11...762
11...762/
15...762
11...762/
15...762
11...762/
11...762
No. Fans...Total kW 1...1.8 1...1.8 1...1.8 2...2.0 2...2.0 2...2.0 (A),
1...1.8 (B)
2...2.0 (A),
1...1.8 (B) 4...4.0 4...4.0
Total Airflow (L/s) 4,130 4,130 4,130 5,349 5,349 7,995 7,995 10,737 10,737
CONDENSER COILS
Quantity...No. Rows 1...2 1...3 1...3 1...3 1...3 2...3 2...3 2...3 2...3
Total Face Area (sq m) 2.14 2.14 2.14 2.97 2.97 5.11 5.11 5.95 5.95
HYDRONIC MODULE (Optional)* Pump(s), Strainer W/Blowdown Valve, Expansion Tank, Pressure Gages, Drain and Vent Plugs, Flow Switch, and Balance Valve
Pump Single or Dual, Close-Coupled Centrifugal Pump(s), 48.3 r/s
Expansion Tank Volume (L) 16.5 39
COMPRESSOR 60 Hz 50 Hz
SM110 12.5 10.5
SM115 13.5 11.2
SM125 14.7 12.0
SM160 19.1 15.6
SM185 21.8 18.3