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Product Manual

PM AGZ-2

Group: Chiller

Effective: May 1999

Supersedes: PM AGZ-1

© 1997 McQuay International

Air-Cooled Scroll Compressor Chiller

AGZ 030AS - 065AS, Packaged Chiller

AGZ 030AM – 050AM, Chiller with Remote Evaporator
60 Hertz, R-22

Содержание AGZ 030AM

Страница 1: ...AGZ 2 Group Chiller Effective May 1999 Supersedes PM AGZ 1 1997 McQuay International Air Cooled Scroll Compressor Chiller AGZ 030AS 065AS Packaged Chiller AGZ 030AM 050AM Chiller with Remote Evaporat...

Страница 2: ...AS 30 AGZ AM 32 Dimensional Data 33 Application Data 36 Optional Features 39 MicroTech 40 Product Specification 41 Our facility is ISO9002 Certified McQuay is a registered trademark of McQuay Internat...

Страница 3: ...ts Efficiency Cross circuit compressor staging Copeland tandem scroll compressors Exceeds ASHRAE Std 90 1 for efficiency Reliability Rugged compressor design Factory installed operating and safety con...

Страница 4: ...ebris and inherently yields the highest efficiency for its class A fail safe compressor by design includes a solid state motor protection module 4 individual motor winding sensors a patented internal...

Страница 5: ...e polymer sheet insulation protecting against water freeze up at ambient air temperatures to 20 F 29 C An ambient air thermostat controls the heater cable The fitted and glued in place insulation has...

Страница 6: ...ed for operation to 40 F 4 4 C The optional SpeedTrol control uses both fan cycling and fan speed control on the lead fan per circuit and allows operation to 0 F 18 C outdoor temperature Mechanical hi...

Страница 7: ...itor up to three setting or sensed values Monitor 18 different on off inputs Monitor alarm status via a flashing alarm light and flashing symbol Adjusting allows adjustment of any flashing set points...

Страница 8: ...ut LvgWtr RBnd SP Contrl Band SP Actual Lvg SP Unoccpd Lvg SP OA Lockout SP Lvg Low Lim SP SoftSta Capcty Cir 1 Starts Cir 2 Starts McQuay AGZ AGR Global Chiller INSERT 10 ON OFF Display Button 1 Mode...

Страница 9: ...as high condenser pressure with mechanical back up freeze protection and low evaporator pressure are manual reset and must be cleared at the keypad to resume operation Tampering is eliminated by use o...

Страница 10: ...F to 44 F chilled water 0 0001 evaporator fouling factor 1 From Performance Table 9 an AGZ 055AS at the given conditions will produce 54 0 tons with a compressor kW input of 59 0 and a unit EER of 9...

Страница 11: ...e 10 an AGZ 055AS at the given conditions will produce 192 8 kW with a unit kW input of 59 4 and a COP of 3 0 2 Use the following formula to calculate any missing elements L s 18 4 C kW 3 Determine th...

Страница 12: ...are as follows 1 Add 3 to the required cooling capacity to approximate correction factors and make a preliminary unit selection from performance Table 9 through Error Reference source not found 2 Divi...

Страница 13: ...m and read up to AGZ 045AM read over to pressure drop of 10 2 ft Selection example using ethylene glycol Given 40 tons minimum 95 F ambient air temperature 54 F 44 F chilled water temperature 0 0001 e...

Страница 14: ...n acceptable control and are not recommended The maximum water temperature that can be circulated through the evaporator in a non operating mode is 100 F 37 8 C Table 1 Ethylene Glycol Freeze Point E...

Страница 15: ...0 982 1 027 0 975 1 025 0 953 1 018 0 910 1 004 16 8 9 0 986 1 028 0 979 1 026 0 956 1 019 0 914 1 005 6 3 3 0 953 1 025 0 946 1 023 0 924 1 016 0 883 1 002 8 4 4 0 955 1 028 0 948 1 026 0 926 1 019...

Страница 16: ...8 2 1 8 AGZ050AM 1 5 8 1 5 8 2 1 8 2 1 8 2 1 8 2 1 8 Note For horizontal and vertical downflow only Table 7 Minimum Line Size R 22 For Oil Carry Up a Suction Riser Unit Size OD AGZ 030 AGZ 035 AGR 04...

Страница 17: ...41 6 12 5 48 0 46 3 11 0 45 9 51 8 9 5 43 5 58 1 8 2 41 1 65 3 6 9 42 0 51 8 42 0 12 9 49 6 46 7 11 3 47 5 52 2 9 8 45 0 58 5 8 4 42 4 65 8 7 1 050AS 44 0 53 6 42 3 13 2 51 3 47 1 11 6 49 0 52 6 10 0...

Страница 18: ...2 1 48 0 3 2 163 5 53 2 2 7 154 2 59 1 2 4 5 0 41 0o F 177 6 42 7 3 6 170 9 47 0 3 2 163 8 52 0 2 8 156 3 57 7 2 4 148 0 64 0 2 1 6 0 42 8o F 183 9 43 0 3 7 176 5 47 4 3 3 169 5 52 4 2 9 161 4 58 0 2...

Страница 19: ...27 6 12 7 14 2 50 00 19 4 15 5 15 0 25 00 9 7 6 9 16 9 100 00 44 3 53 1 10 0 045AS 75 00 33 2 31 7 12 6 13 8 50 00 22 1 18 4 14 4 25 00 11 0 8 2 16 1 100 00 49 0 58 8 10 0 050AS 75 00 36 7 35 3 12 5...

Страница 20: ...and data per ARI Standard 370 Sound levels are as important as unit cost and efficiency and must be addressed before to the start of any development program Efforts by McQuay Design Engineers to desig...

Страница 21: ...l A weighted value Measurements are taken over a prescribed area around the unit and the data is mathematically calculated to give the sound power dB Sound Reduction due to Distance from the Unit The...

Страница 22: ...uired The control box end provides an excellent acoustic barrier to the compressor sound as it covers one full end of the unit The sound pressure levels at the control box end will be 4 dBA less than...

Страница 23: ...s ft of Water gpm lps 030AS AM 7 4 73 4 61 18 7 122 7 68 3 2 46 2 88 035AS AM 9 2 82 5 17 23 1 137 8 62 3 9 51 3 23 040AS AM 11 5 93 5 87 28 8 155 9 78 4 9 58 3 67 045AS AM 11 2 106 6 69 28 2 177 11 1...

Страница 24: ...80 111 3 2 1 1 25 32 125 460 78 3 4 1 1 00 25 90 575 67 3 4 1 1 00 25 80 208 183 3 3 0 1 2 00 51 200 045AS 230 183 3 3 0 1 2 00 51 200 045AM 380 116 3 1 1 1 25 32 125 460 94 3 3 1 1 25 32 110 575 76 3...

Страница 25: ...60 16 5 16 5 2 0 4 8 5 127 127 575 13 7 13 7 2 2 4 10 3 100 100 208 33 6 41 0 5 8 4 23 7 278 350 230 33 6 41 0 5 8 4 23 7 278 350 045AS 380 22 8 25 0 3 4 4 14 4 151 195 045AM 460 16 5 21 8 2 8 4 10 7...

Страница 26: ...AM 380 175 12 2 0 150 4 4 0 460 175 12 2 0 100 14 1 0 575 175 12 2 0 100 14 1 0 208 335 4 400 MCM 225 3 300 MCM 230 335 4 400 MCM 225 3 300 MCM 045AS 380 175 12 2 0 150 4 4 0 045AM 460 175 12 2 0 100...

Страница 27: ...ture of 86 F 30 C Ampacity correction factors must be applied for other ambient temperatures Refer to the National Electrical Code Handbook 8 Must be electrically grounded according to national and lo...

Страница 28: ...28 AGZ 030A through 065A Product Manual AGZ 2 Figure 9 Typical Field Wiring with MicroTech Controller See Note 3 for Electrical Data Single Point Power on page 27...

Страница 29: ...Product Manual AGZ 2 AGZ 030A through 065A 29 Figure 10 Typical Field Wiring Diagram with UNT Controller See note 3 for Electrical Data Single Point Power on page 27...

Страница 30: ...RAL SUBCOOLING Coil Face Area Sq Ft 46 4 46 4 46 4 46 4 46 4 46 4 46 4 46 4 Coil Face Area M2 4 3 4 3 4 3 4 3 4 3 4 3 4 3 4 3 Finned Height x Finned Length In 80 x 83 5 80 x 83 5 80 x 83 5 80 x 83 5 8...

Страница 31: ...HIGH EFFICIENCY FIN AND TUBE TYPE WITH INTEGRAL SUBCOOLING Coil Face Area Sq Ft 46 4 46 4 46 4 46 4 46 4 46 4 58 0 58 0 Coil Face Area M2 4 3 4 3 4 3 4 3 4 3 4 3 5 4 5 4 Finned Height x Finned Length...

Страница 32: ...80 x 83 5 80 x 83 5 80 x 83 5 80 x 83 5 80 x 83 5 80 x 83 5 80 x 83 5 80 x 83 5 Finned Height x Finned Length mm 2032 x 2121 2032 x 2121 2032 x 2121 2032 x 2121 2032 x 2121 2032 x 2121 2032 x 2121 20...

Страница 33: ...PLINGS BY OTHERS AGZ Dimensions Center Of Gravity Unit Weights Additional Weight Model inches mm inches mm lbs kgs For Units with Copper Number A B C D E F X Y Z Operating Shipping Fin Coils lbs kgs 0...

Страница 34: ...RATING SHIPPING FINS lbs kgs In In 030AM 7 8 1 5 8 42 8 1087 35 8 909 39 7 1008 2945 1336 2885 1309 445 200 1 5 8 7 8 035AM 7 8 1 5 8 42 8 1087 35 9 911 40 0 1016 3000 1361 2940 1334 445 200 1 5 8 7 8...

Страница 35: ...OR CHARGING VALVE RELIEF VALVE SYSTEM 2 SYSTEM 1 F G G A X Z ALL DIMENSIONS IN INCHES MM CDE REMOTE WATER CONNECTIONS REFRIGERANT CONNECTIONS MODEL WITH AGZ AM inches mm inches mm NUMBER MODEL C L P T...

Страница 36: ...of air to and from the condenser coil Restricting airflow or allowing air recirculation will result in a decrease in unit performance and efficiency because discharge pressures are increased There mus...

Страница 37: ...outlet water line Provide drain connections at low points in the system to permit complete drainage of the system Locate air vents at the high points in the system to purge air out of the system A ve...

Страница 38: ...ble pressure drops and may cause excessive nozzle and tube erosion potentially leading to failure Evaporator Freeze Protection Evaporator freeze up can be a concern in the application of air cooled wa...

Страница 39: ...eep head pressure below maximum limits This feature allows unit to run part loaded instead of shutting unit down due to high head pressure Included with MicroTech SpeedTrol Head Pressure Control Optio...

Страница 40: ...MicroTech option MicroTech The control panel contains a Model 250 6 microprocessor based controller The operator can review and change operating parameters from the interface keypad The interface key...

Страница 41: ...following 1 Dimensioned plan and elevation view drawings required clearances and location of all field connections 2 Summary of all auxiliary utility requirements such as electricity water compressed...

Страница 42: ...rs in the quantity specified Each chiller shall consist of hermetic tandem scroll compressors multi circuit direct expansion evaporator air cooled condenser section control system and all components n...

Страница 43: ...o plate type fins The fins shall have full drawn collars to completely cover the tubes A subcooling coil shall be an integral part of the main condenser coil Condenser fans shall be propeller type arr...

Страница 44: ...peratures pressures and safeties and automatically shut down a circuit or the entire unit at fault conditions The cause time and date of the occurrence shall be recorded and displayed along with avail...

Страница 45: ...l setpoint control switched by a remote signal from the building control system Factory installed nonfused disconnect switch with through the door handle mounted in the unit control panel Factory inst...

Страница 46: ...field connections 2 Summary of all auxiliary utility requirements such as electricity water compressed air etc Summary shall indicate quality and quantity of each required utility 3 Single line schema...

Страница 47: ...remote direct expansion water chiller interconnecting wiring and refrigerant piping and all other components necessary for safe and controlled unit operation The outdoor unit shall be factory run test...

Страница 48: ...hall protect coils D Control System A centrally located weatherproof control panel shall contain the field power connection points control interlock terminals and control system Power and starting com...

Страница 49: ...discharge pressure shall be controlled by a SpeedTrol control employing both fan cycling and fan speed control and allow operation to 0 F 18 C F Remote Evaporator The evaporator shall be direct expan...

Страница 50: ...ual setpoint control switched by a remote signal from the building control system Factory installed nonfused disconnect switch with through the door handle mounted in the unit control panel Factory in...

Страница 51: ......

Страница 52: ...P O Box 2510 Staunton Virginia 24402 2510 USA 540 248 0711...

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