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AGS 225DF
User Manual
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McQuay AGS 225DF User Manual

Air-Cooled Chillers
Available LONMARK certified
Modbus
®
Model AGS—140 to 500 tons,
R-134a
Air-Cooled Screw Compressor Chillers—140 to 500 Tons
• Ultra-quiet operation - as low as 65 dBA per ARI Standard 370, with optional sound attenuation package
• Application flexibility - remote evaporator option allows for split system applications
• Reliability - proven single screw compressor design
• Controls flexibility—MicroTech feature for easy integration with the BAS of your choice
• Efficiency options - ASHRAE Standard 90.1 compliant standard efficiency units. High and premium efficiency units available up to 10.6 EER at full load
• R-134a refrigerant - no ozone depletion potential, no phase-out schedule
®
II controls with our Open Choices™
For more detail, refer to Catalog AGSD and Catalog AGSDP. For the most current information, refer to www.mcquay.com.
Air-Cooled Chillers
124 2010 McQuay Products Catalog
Air-Cooled Chillers
Available LONMARK certified
Modbus
®
Pathfinder Chiller - 175 to 530 tons,
Model AWS, R-134a
Pathfinder™ Air-Cooled Chillers—175 to 530 Tons
• Three levels of efficiency
- Standard: meets ASHRAE Standard 90.1 for efficiency
- High: enhanced efficiency, up to 10.8 EER at full load
- Premium: highest full load efficiency in its class with part load efficiency that rivals competitive chillers with VFDs
• Integrated VFD further optimizes part load efficiency to redefine world class performance
• Quietest air cooled screw chiller available, with sound pressure levels as low as 65 dBA with no attenuation
- Patented condenser fan moves maximum amounts of air with minimal
sound
- Unique screw compressor with single main rotor and dual gaterotors
operates more quietly than dual rotor screw compressors
• Contributes to Leadership in Energy and Environmental Design (LEED Green Building Rating System™ points for enhanced refrigerant management and optimized energy efficiency
• Small unit footprint makes it ideal for retrofit and replacement projects
• All Pathfinder Chillers shipped in North America are D-Net™ remote service capable, providing a direct electronic connection to a Pathfinder Chiller and the ability for enhanced level of support to keep the chiller running efficiently and reliably
• Application flexibility with remote evaporator option available on standard efficiency units
®
)
For more detail, refer to Catalog 600. For the most current information, refer to www.mcquay.com.
Air-Cooled Chillers
2010 McQuay Products Catalog 125
Air-Cooled Chillers
Pathfinder Model AWS Air-Cooled Packaged Chiller, Standard Efficiency—Physical Data
AWS 175ADS through AWS 210ADS, Packaged, Standard Efficiency, R-134a
Data
Basic Data
Unit cap. @ AHRI tons (kW) 174.1 (612.2) 194.2 (682.9) 207.8 (730.6) Unit operating charge lb (kg) 145 (66) 145 (66) 165 (75) 165 (75) 175 (79) 175 (79) Unit dimensions
L × W × H, in (mm) Unit operating weight, lb (kg) 12950 (5874) 13673 (6202) 14208 (6445) Unit shipping weight, lb (kg) 12407 (5628) 13130 (5956) 13665 (6198) Weight-add for copper fins 1786 (810) 1786 (810) 1786 (810) Weight-add for louvered panels 676 (307) 788 (357) 788 (357) Weight-add for sound enclosures 477 (216) 477 (216) 477 (216)
Compressors, Screw, Semi-Hermetic
Nominal capacity, tons (kW) 90 (316) 90 (316) 90 (316) 100 (351) 100 (351) 100 (351) Minimum capacity (% of full load) 15 15 15 Oil charge per circuit, gallons (liters)
Condensers, High Efficiency Fin and Tube Type
Pumpdown capacity, lb (kg) 208 (94) 208 (94) 250 (113) 250 (113) 250 (113) 250 (113) Coil inlet face area, ft Rows deep/fins per inch
Condenser Fans, Direct Drive Propeller Type
No. of fans/circuit–fan dia., in (mm) 5–31.5 (800) 6–31.5 (800) 6–31.5 (800) Fan motors–hp (kW) / rpm 1.4 (1.05) / 850 1.4 (1.05) / 850 1.4 (1.05) / 850 Airflow, cfm (L/s) 110850 (52315) 133020 (62778) 133020 (62778)
Evaporator, Direct Expansion Shell and Tube
Shell dia. tube length, in (mm) 16 x 406 (406 x 2750) 16 x 108 (406 x 2750) 16 x 108 (406 x 2750) Water volume, gallons (L) 67 (255) 67 (255) 63 (240) Victaulic inlet/outlet conn. in. (mm) Max. water / refrig. pressure, psi (kPa) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241)
2 (m2
) 123.1 (11.4) 123.1 (11.4) 147.7 (13.7) 147.7 (13.7) 147.7 (13.7) 147.7 (13.7)
AWS175ADS Std Eff AWS190ADS Std Eff AWS210ADS Std Eff
Circuit 1 Circuit 2 Circuit 1 Circuit 2 Circuit 1 Circuit 2
245 x 88 x 100
(6220 x 2225 x 2548)
4.5 (17) 4.5 (17) 4.5 (17) 5.5 (21) 5.5 (21) 5.5 (21)
3 / 16 3 / 16 3 / 16 3 / 16 3 / 16 3 / 16
6 (168) 6 (168) 6 (168)
245 x 88 x 100
(6220 x 2225 x 2548)
245 x 88 x 100
(6220 x 2225 x 2548)
AWS 230ADS through AWS 280ADS, Packaged, Standard Efficiency, R-134a
Data
Basic Data
Unit cap. @ AHRI tons (kW) 231.8 (815.0) 248.7 (874.4) 271.9 (955.9)
Air-Cooled Chillers
Unit operating charge lb (kg) 195 (88) 210 (95) 210 (95) 210 (95) 230 (104) 245 (111) Unit dimensions
L × W × H, in (mm) Unit operating weight, lb (kg) 15381 (6977) 15669 (7107) 17012 (7717) Unit shipping weight, lb (kg) 14838 (6730) 15126 (6861) 16145 (7323) Weight-add for copper fins 2084 (945) 2084 (945) 2372 (1076) Weight-add for louvered panels 900 (408) 900 (408) 1012 (459) Weight-add for sound enclosures 477 (216) 477 (216) 477 (216)
Compressors, Screw, Semi-Hermetic
Nominal capacity, tons (kW) 100 (351) 125 (439) 125 (439) 125 (439) 125 (439) 150 (528) Minimum capacity (% of full load) 15 15 15 Oil charge per circuit, gallons (liters)
Condensers, High Efficiency Fin and Tube Type
Pumpdown capacity, lb (kg) 291 (132) 291 (132) 291 (132) 291 (132) 333 (151) 333 (151) Coil inlet face area, ft Rows deep/fins per inch
Condenser Fans, Direct Drive Propeller Type
No. of fans/circuit–fan dia., in (mm) 7–31.5 (800) 7–31.5 (800) 8–31.5 (800) Fan motors–hp (kW) / rpm 1.4 (1.05) / 850 1.4 (1.05) / 850 1.4 (1.05) / 850 Airflow, cfm (L/s) 155190 (73241) 155190 (73241) 177360 (83704)
Evaporator, Direct Expansion Shell and Tube
Shell dia. tube length, in (mm) 16 x 108 / (406 x 2750) 16 x 108 / (406 x 2750) 20 x 108 / (508 x 2750) Water volume, gallons (L) 61 (232) 61 (232) 103 (390) Victaulic inlet/outlet conn. in. (mm) Max. water / refrig. pressure, psi (kPa) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241)
2 (m2
) 172.3 (16.0) 172.3 (16.0) 172.3 (16.0) 172.3 (16.0) 169.9 (18.3) 169.9 (18.3)
AWS230ADS Std Eff AWS250ADS Std Eff AWS280ADS Std Eff
Circuit 1 Circuit 2 Circuit 1 Circuit 2 Circuit 1 Circuit 2
280 x 88 x 100
(7121 x 2225 x 2548)
5.5 (21) 5.5 (21) 5.5 (21) 5.5 (21) 5.5 (21) 6 (23)
3 / 16 3 / 16 3 / 16 3 / 16 3 / 16 3 / 16
6 (168) 6 (168) 8 (219)
280 x 88 x 100
(7121 x 2225 x 2548)
316 x 88 x 100
(8022 x 2225 x 2548)
126 2010 McQuay Products Catalog
Air-Cooled Chillers
AWS 300ADS through AWS 350ADS, Packaged, Standard Efficiency, R-134a
Data
Basic Data
Unit cap. @ AHRI tons (kW) 290.5 (1022.4) 327.5 (1151.8) 349.5 (1229.0) Unit operating charge lb (kg) 245 (111) 245 (111) 270 (122) 270 (122) 285 (129) 285 (129) Unit dimensions
L × W × H, in (mm) Unit operating weight, lb (kg) 17724 (8040) 19656 (8916) 19656 (8916) Unit shipping weight, lb (kg) 16857 (7646) 18789 (8523) 18789 (8523) Weight-add for copper fins 2372 (1076) 2968 (1346) 2968 (1346) Weight-add for louvered panels 1012 (459) 1236 (561) 1236 (561) Weight-add for sound enclosures 477 (216) 477 (216) 477 (216)
Compressors, Screw, Semi-Hermetic
Nominal capacity, tons (kW) 150 (528) 150 (528) 150 (128) 175 (615) 175 (615) 175 (615) Minimum capacity (% of full load) 15 15 15 Oil charge per circuit, gallons (liters)
Condensers, High Efficiency Fin and Tube Type
Pumpdown capacity, lb (kg) 333 (151) 333 (151) 416 (189) 416 (189) 416 (189) 416 (189) Coil inlet face area, ft Rows deep/fins per inch
Condenser Fans, Direct Drive Propeller Type
No. of fans/circuit–fan dia., in (mm) 8–31.5 (800) 10–31.5 (800) 10–31.5 (800) Fan motors–hp (kW) / rpm 1.4 (1.05) / 850 1.4 (1.05) / 850 1.4 (1.05) / 850 Airflow, cfm (L/s) 177360 (83704) 221700 (104630) 221700 (104630)
Evaporator, Direct Expansion Shell and Tube
Shell dia. tube length, in (mm) 20 x 108 / (508 x 2750) 20 x 108 / (508 x 2750) 20 x 108 / (508 x 2750) Water volume, gallons (L) 103 (390) 99 (374) 99 (374) Victaulic inlet/outlet conn. in. (mm) Max. water / refrig. pressure, psi (kPa) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241)
2 (m2
) 169.9 (18.3) 169.9 (18.3) 246.1 (22.8) 246.1 (22.8) 246.1 (22.8) 246.1 (22.8)
AWS300ADS Std Eff AWS320ADS Std Eff AWS350ADS Std Eff
Circuit 1 Circuit 2 Circuit 1 Circuit 2 Circuit 1 Circuit 2
316 x 88 x 100
(8026 x 2225 x 2548)
6 (23) 6 (23) 6 (23) 6 (23) 6 (23) 6 (23)
3 / 16 3 / 16 3 / 16 3 / 16 3 / 16 3 / 16
8 (219) 8 (219) 8 (219)
387 x 88 x 100
(9823 x 2225 x 2548)
387 x 88 x 100
(9823 x 2225 x 2548)
AWS 375ATS through AWS 400ATS, Packaged, Standard Efficiency, R-134a
Data
Basic Data
Unit cap. @ AHRI tons (kW) 376.5 (1323.9) 396.8 (1395.1) Unit operating charge lb (kg) 210 (95) 210 (95) 245 (111) 210 (95) 210 (95) 245 (111) Unit dimensions
L × W × H, in (mm) Unit operating weight, lb (kg) 23885 (10834) 24570 (11145) Unit shipping weight, lb (kg) 22486 (10200) 23171 (10510) Weight-add for copper fins 3256 (1477) 3256 (1477) Weight-add for louvered panels 1348 (611) 1348 (611) Weight-add for sound enclosures 776 (352) 776 (352)
Compressors, Screw, Semi-Hermetic
Nominal capacity, tons (kW) 125 (439) 125 (439) 125 (439) 125 (439) 125 (439) 150 (528) Minimum capacity (% of full load) 8 8 Oil charge per circuit, gallons (liters)
Condensers, High Efficiency Fin and Tube Type
Pumpdown capacity, lb (kg) 291 (132) 291 (132) 333 (151) 291 (132) 291 (132) 333 (151) Coil inlet face area, ft Rows deep/fins per inch
Condenser Fans, Direct Drive Propeller Type
No. of fans/circuit–fan dia., in (mm) 7–31.5 (800) 7–31.5 (800) 8–31.5 (800) 7–31.5 (800) 7–31.5 (800) 8–31.5 (800) Fan motors–hp (kW) / rpm 1.4 (1.05) / 850 1.4 (1.05) / 850 Airflow, cfm (L/s) 266040 (125556) 243870 (115094)
Evaporator, Direct Expansion Shell and Tube
Shell dia. tube length, in (mm) 26 x 130 / (660 x 3300) 26 x 130 / (660 x 3300) Water volume, gallons (L) 230 (871) 225 (850) Victaulic inlet/outlet conn. in. (mm) Max. water / refrig. pressure, psi (kPa) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241)
2 (m2
) 172.3 (16.0) 172.3 (16.0) 169.9 (18.3) 172.3 (16.0) 172.3 (16.0) 169.9 (18.3)
Circuit 1 Circuit 2 Circuit 3 Circuit 1 Circuit 2 Circuit 3
5.5 (21) 5.5 (21) 5.5 (21) 5.5 (21) 5.5 (21) 6 (23)
AWS375ATS Std Eff AWS400ATS Std Eff
438 x 88 x 100
(11123 x 2225 x 2548)
3 / 16 3 / 16 3 / 16 3 / 16 3 / 16 3 / 16
10 (273) 10 (273)
438 x 88 x 100
(11123 x 2225 x 2548)
Air-Cooled Chillers
2010 McQuay Products Catalog 127
Air-Cooled Chillers
AWS 425ATS through AWS 445ATS, Packaged, Standard Efficiency, R-134a
Data
Basic Data
Unit cap. @ AHRI tons (kW) 414.1 (1456.1) 448.2 (1576.1) Unit operating charge lb (kg) 245 (111) 245 (111) 220 (100) 245 (111) 245 (111) 245 (111) Unit dimensions
L × W × H, in (mm) Unit operating weight, lb (kg) 26830 (12170) 27506 (12477) Unit shipping weight, lb (kg) 25431 (11535) 26107 (11842) Weight-add for copper fins 3553 (1612) 3553 (1612) Weight-add for louvered panels 1460 (662) 1460 (662) Weight-add for sound enclosures 776 (352) 776 (352)
Compressors, Screw, Semi-Hermetic
Nominal capacity, tons (kW) 125 (439) 150 (528) 150 (528) 150 (528) 150 (528) 150 (528) Minimum capacity (% of full load) 8 8 Oil charge per circuit, gallons (liters)
Condensers, High Efficiency Fin and Tube Type
Pumpdown capacity, lb (kg) 333 (151) 333 (151) 333 (151) 333 (151) 333 (151) 333 (151) Coil inlet face area, ft Rows deep/fins per inch
Condenser Fans, Direct Drive Propeller Type
No. of fans/circuit–fan dia., in (mm) 8–31.5 (800) 8–31.5 (800) Fan motors–hp (kW) / rpm 1.4 (1.05) / 850 1.4 (1.05) / 850 Airflow, cfm (L/s) 266040 (125556) 266040 (125556)
Evaporator, Direct Expansion Shell and Tube
Shell dia. tube length, in (mm) 26 x 130 / (660 x 3300) 26 x 130 / (660 x 3300) Water volume, gallons (L) 220 (831) 220 (831) Victaulic inlet/outlet conn. in. (mm) Max. water / refrig. pressure, psi (kPa) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241)
2 (m2
) 169.9 (18.3) 169.9 (18.3) 169.9 (18.3) 169.9 (18.3) 169.9 (18.3) 169.9 (18.3)
Circuit 1 Circuit 2 Circuit 3 Circuit 1 Circuit 2 Circuit 3
5.5 (21) 6 (23) 6 (23) 6 (23) 6 (23) 6 (23)
3 / 16 3 / 16 3 / 16 3 / 16 3 / 16 3 / 16
AWS425ATS Std Eff
473 x 88 x 100
(12024 x 2225 x 2548)
10 (273) 10 (273)
AWS445ATS Std Eff
473 x 88 x 100
(12024 x 2225 x 2548)
AWS 470ATS through AWS 500ATS, Packaged, Standard Efficiency, R-134a
Data
Basic Data
Unit cap. @ AHRI tons (kW) 478.2 (1681.5) 504.4 (1773.5)
Air-Cooled Chillers
Unit operating charge lb (kg) 245 (111) 245 (111) 275 (125) 275 (125) 275 (125) 245 (111) Unit dimensions
L × W × H, in (mm) Unit operating weight, lb (kg) 28631 (12987) 29508 (13385) Unit shipping weight, lb (kg) 27232 (12352) 28109 (12750) Weight-add for copper fins 3870 (1755) 4168 (1891) Weight-add for louvered panels 1572 (713) 1684 (764) Weight-add for sound enclosures 776 (352) 776 (352)
Compressors, Screw, Semi-Hermetic
Nominal capacity, tons (kW) 150 (528) 150 (528) 175 (615) 175 (615) 175 (615) 150 (528) Minimum capacity (% of full load) 8 8 Oil charge per circuit, gallons (liters)
Condensers, High Efficiency Fin and Tube Type
Pumpdown capacity, lb (kg) 333 (151) 333 (151) 416 (189) 416 (189) 416 (189) 333 (151) Coil inlet face area, ft Rows deep/fins per inch
Condenser Fans, Direct Drive Propeller Type
No. of fans/circuit–fan dia., in (mm) 8–31.5 (800) 8–31.5 (800) 10–31.5 (800) 10–31.5 (800) 10–31.5 (800) 8–31.5 (800) Fan motors–hp (kW) / rpm 1.4 (1.05) / 850 1.4 (1.05) / 850 Airflow, cfm (L/s) 288210 (136019) 310380 (146482)
Evaporator, Direct Expansion Shell and Tube
Shell dia. tube length, in (mm) 26 x 130 / (660 x 3300) 26 x 130 / (660 x 3300) Water volume, gallons (L) 220 (831) 220 (831) Victaulic inlet/outlet conn. in. (mm) Max. water / refrig. pressure, psi (kPa) 152 (1048) / 325 (2241) 152 (1048) / 325 (2241)
2 (m2
) 169.9 (18.3) 169.9 (18.3) 246.1 (22.8) 246.1 (22.8) 246.1 (22.8) 169.9 (18.3)
Circuit 1 Circuit 2 Circuit 3 Circuit 1 Circuit 2 Circuit 3
6 (23) 6 (23) 6 (23) 6 (23) 6 (23) 6 (23)
3 / 16 3 / 16 3 / 16 3 / 16 3 / 16 3 / 16
AWS470ATS Std Eff
509 x 88 x 100
(12921 x 2225 x 2548)
10 (273) 10 (273)
AWS500ATS Std Eff
544 x 88 x 100
(13823 x 2225 x 2548)
128 2010 McQuay Products Catalog
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