McQuay 140 Ton Air-Cooled Scroll Chiller AGZ140CHHNN-ER10 2009

OVERVIEW

Used McQuay AGZ 140C air-cooled scroll water chiller, 140 nominal tons, R-410A, 460V/60Hz/3-phase. Nameplate shows an air cooled water chiller unit with six compressors, ten condenser fan motors (2 HP each) and a factory R-410A charge of 250 lbs across two refrigerant circuits (125 lbs each). Minimum circuit ampacity 315 A and maximum fuse/breaker 350 A. McQuay data lists the AGZ 140C as a dual-circuit unit with triple scroll compressors on each circuit and a shell-and-tube evaporator. Built by McQuay International (now Daikin Applied), Staunton, VA. Photos show the unit with its control panel and disconnect, coil guards on the condenser coils and compressors in the lower section.

EQUIPMENT SPECIFICATIONS

- Manufacturer: McQuay International (Daikin Applied), Staunton, VA

- Model: AGZ140CHHNN-ER10 (McQuay AGZ 140C scroll chiller series)

- Year: Approx. 2009 (inferred from the serial number coding; not stamped as a date on the nameplate)

- Type: Air-cooled water chiller (nameplate box marked: air cooled water chiller unit)

- Nominal size (McQuay data): 140 tons; AHRI rating for AGZ 140C is 133.7 tons at 95°F ambient and 54/44°F water

- Compressors: 6 per nameplate; McQuay data: 3 triple scroll compressors per circuit, 25 nominal tons each, 6 capacity stages

- Condenser fans: 10 motors at 2 HP each per nameplate; McQuay data: 30 in propeller fans, 1,140 RPM, about 108,630 CFM total

- Refrigerant circuits: 2 independent circuits (McQuay data)

- Evaporator (McQuay data): Shell-and-tube, 58 gal water volume, 152 psig max water pressure

- Dimensions (McQuay data): 218.6 in L x 88.0 in W x 100.4 in H

- Weights (McQuay data): 9,155 lb shipping, 9,530 lb operating (aluminum fins)

PERFORMANCE / ELECTRICAL RATINGS

- Voltage / Hz / phase: 460 V / 60 Hz / 3 ph (power supply and compressor circuit per nameplate)

- Minimum branch circuit ampacity: 315 A

- Maximum fuse or circuit breaker: 350 A

- Condenser fan motors: 10 qty, 2 HP each, 460 V / 60 Hz / 3 ph

- Crankcase heaters: 6 qty, 115 V / 60 Hz / 1 ph

- Evaporator heater: 1 qty, 115 V / 60 Hz / 1 ph

- Compressor RLA/LRA, fan amps, heater amps: Not legible on the nameplate photos; not listed

REFRIGERANT SYSTEM

- Refrigerant: R-410A

- Total charge (nameplate): 250 lbs

- Circuit 1 charge: 125 lbs

- Circuit 2 charge: 125 lbs

- Factory charged: Yes (per nameplate)

- High side design pressure: 600 PSIG

- Low side design pressure: 238 PSIG

- Max. relief pressure: Not stamped on the nameplate

- Current refrigerant charge and operating condition: Not verified

ADDITIONAL INFORMATION

- Condition: Used

- Location: TBD

- Operating hours, service history and inspection records: Not specified

- Included: Equipment shown in the photos; nothing else is claimed. No pump package, hydronic accessories or controls are listed.

Specifications marked "McQuay data" come from McQuay's AGZ-C installation manual IMM AGZC-1 (AGZ 030C through 190C) and are for reference; they may differ for an individual unit.

Yard tag: CACM140T52