Trane - CGAM Product Details.pdf

CGAM Product Report

General Chiller Model CGAM

Elevation 0.00 ft

Nominal Tonnage 52 tons

Refrigeration Capacity 51.43 tons

Cooling Efficiency 11.91 EER (Btu/W-h)

IPLV 17.62 EER (Btu/W-h)

NPLV 17.41 EER (Btu/W-h)

Voltage 460. volt 3 phases

Refrigerant Refrigerant Charge R-454B

Refrigerant Circuits 2

Number of Compressors (Capacity Steps) 4

Agency Listing ETL Listed to US/Canadian Safety Std

Evaporator Evaporator Application Standard Cooling

Fouling Factor 0.000100 hr-sq ft-deg F/ Btu

Flow switch set point Flow switch set point 60 cm/sec

Design Flow 123.0 gpm

VPF Min Flow 75.89 gpm

Evap Head Loss 15.6 ft H2O

Fluid Type Water

Fluid Freeze Point 32.00 F

Entering Temperature 54.00 F

Leaving Temperature 44.00 F

Evap + Strainer Head Loss 19.6 ft H2O

Condenser Unit application Wide Ambient

Ambient Air Temperature 95.0 F

Total Number of Fans 4

Pump Package Pump type Dual high head

Pump Size 5.000 hp

Avail head pressure at water connection 54.5 ft H2O

Total PD pump+evap+strainer 22.2 ft H2O

Pump Flow Control Var speed drive

Pump Nominal Current 6.10 A

Expansion Tank Volume 5.00 gal

Buffer Tank With buffer storage tank

Buffer Tank Volume 140.00 gal

Electrical Information Unit Voltage 460. volt 3 phases

Unit Hertz 60. hertz

Total power input 51.81 kW

Compressor Starter Across the line

Incoming Line Connection Type Single point

MCA

Single Point Power 113 A

RLA

RLA - compressor 1A 21.50 A

RLA - compressor 1B 21.50 A

RLA - compressor 2A 21.50 A

RLA - compressor 2B 21.50 A

Short Circuit Current Rating Default

Power Line Connction Type Terminal block

Short Circuit Current Rating 5000. A

FLA - Condenser Fan (each) 3.30 A

MOP

Single Point Power 150. A

LRA

LRA - compressor 1A 158.00 A

LRA - compressor 1B 158.00 A

LRA - compressor 2A 158.00 A

LRA - compressor 2B 158.00 A

Full Sounds Sound Sound Attenuator Package Super quiet

Sound Power Level 89 dBA

Job Name: SJAFB 4522 and budget chillers Quantity: 1

Prepared For: Sales Office: Wilmington TCS Ind SO NC

Unit Tag: CH4522

2024/11/26 09:31:13 Page 1 of 19

Physical Information

Dimensions

Length 137.600 in

Width 88.400 in

Height 84.800 in

Weights

Operating weight 6423 lb

Shipping weight 5169 lb

Circuits Refrigerant Charge Oil Charge

Circuit 1 38.0 lb 1.90 gal

Circuit 2 38.0 lb 1.90 gal

Standard Rating Performance and Information for LEED Rating Refrigerant Charge Circuit 1 38.0 lb

Refrigerant Charge Circuit 2 38.0 lb

Rated Refrigerating Capacity 51.48 tons

Rated Cooling Efficiency 11.92 EER (Btu/W-h)

Rated IPLV 17.62 EER (Btu/W-h)

Refrigerating Capacity 51.43 tons

Cooling Efficiency 11.91 EER (Btu/W-h)

Fan Power 4.746 kW

Compressor Power 46.85 kW

ASHRAE 90.1 - 2019

This product meets the minimum efficiency requirements of ASHRAE Standard 90.1 (which are based on AHRI standard rating conditions with water) and, therefore, also meets the LEED "Minimum Energy Performance" prerequisite in the Energy and Atmosphere section.

The LEED Green Building Rating System™, developed by the U.S.

Green Building Council, provides independent, third-party verification that a building project meets green building and performance measures.

Regulatory Compliance

AHRI certification

“Certified in accordance with the AHRI Air-Cooled Water-Chilling Packages Certification Program, which is based on AHRI Standard 550/590 (I-P) and AHRI Standard 551/591 (SI). Certified units may be found in the AHRI Directory at www.ahridirectory.org”

Publication Data Generation Date 11/26/2024

Trane Select Assist Version Number 289

Job Name: SJAFB 4522 and budget chillers Quantity: 1

Prepared For: Sales Office: Wilmington TCS Ind SO NC

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Job Name: SJAFB 4522 and budget chillers Quantity: 1

Prepared For: Sales Office: Wilmington TCS Ind SO NC

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Job N am e: S

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4522 and budget chillers Q uantity: 1

P repared F or:

S ales O ffice: W ilm ington T

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2024/11/26 09:31:13 P age 16 of 19

Foundation Provide rigid, non-warping mounting pads or a concrete foundation of sufficient strength and mass to support the applicable operating weight (i.e. including completed piping, and full operating charges of refrigerant, oil and water). The expectation of Trane equipment is that piping is fully supported by an independent structure/system, without being connected to the waterbox. Once in place, the unit must be level within 1/2" across the length and width of the unit. The Trane Company is not responsible for equipment problems resulting from an improperly designed or constructed foundation.

Center Of Gravity

Different unit configurations and options may cause a variation in the center of gravity from what is listed in the submittal.. Refer to the Installation, Operating and Maintenance manual for specific lifting instructions.

General Units are constructed of a galvanized steel frame with galvanized steel panels and access doors.

Component surfaces are finished with a powder-coated paint.

Each unit ships with full operating charges of refrigerant and oil.

Compressor and Motor The unit is equipped with four hermetic, direct-drive, 3600 rpm 60 Hz suction gas-cooled scroll compressors. The simple design has only three major moving parts and a completely enclosed compression chamber which leads to increased efficiency. Overload protection is internal to the compressors. The compressor includes: centrifugal oil pump, oil level sight glass and oil charging valve. Each compressor will have compressor heaters installed and properly sized to minimize the amount of liquid refrigerant present in the oil sump during off cycles.

Unit-Mounted Starter The control panel is designed per UL 60335. The starter is in an across-the-line configuration, factory-mounted and fully pre-wired to the compressor motor and control panel. Typically, Trane scroll compressors are up to full speed in one second when started across-the-line.

A factory-installed, factory-wired 820 VA control power transformer provides all unit control power (120 Vac secondary) and Trane Symbio (TM) 800 controller module power (24 Vac secondary).

Power line connection type is standard with a terminal block.

Power Connection Power connections include main three-phase power and two separate 115V, 20 amp customer provided single phase power connections are required to power the evaporator heaters (if used for freeze protection) as well as the buffer tank heaters.

The evaporator heat trace terminates in the lower left hand side of the control cabinet. Termination points are 1X6-1 and 1X6-2 for the evaporator heat trace and optional pump package heat trace.

Optional buffer tank it will require an additional circuit which terminates on 1X6-3 and 1X6-4.

Short circuit current rating of 5 kA is provided.

Job Name: SJAFB 4522 and budget chillers Quantity: 1

Prepared For: Sales Office: Wilmington TCS Ind SO NC

2024/11/26 09:31:13 Page 17 of 19

Evaporator Braze plate evaporator is made of stainless steel with copper as the braze material. It is designed to withstand a refrigerant side working pressure of 430 psig (29.6 bars) and a waterside working pressure of 150 psig (10.5 bars). Evaporator is tested at 1.1 times maximum allowable refrigerant side working pressure and 1.5 times maximum allowable water side working pressure. It has one water pass. A water strainer and a flow switch are factory installed.

Immersion heaters protect the evaporator to an ambient of -20°F (-29°C).

All evaporators have grooved pipe connections.

Note: An additional 115V, 20 amp field provided single phase power connection is required to power the heaters (if used for freeze protection).

Condenser Air-cooled condenser coils have lanced aluminum fins mechanically bonded to internally-finned copper tubing.

The condenser coil has an integral sub-cooling circuit. The maximum allowable working pressure of the condenser is 650 psig (44.8 bars). Condensers are factory proof tested at 650 psig (44.8 bars).

Direct-drive vertical discharge condenser fans are balanced and individually protected. Three-phase condenser fan motors with permanently lubricated ball bearings and external thermal overload protection are provided.

A variable speed drive on the first fan of each circuit allows the unit to start and operate with ambient temperatures between 0.0 F and 125.0 F.

Refrigerant Circuits The unit has dual refrigerant circuits. Each refrigerant circuit has Trane scroll compressors piped in parallel with a passive oil management system. A passive oil management system maintains proper oil levels within compressors and has no moving parts. Each refrigerant circuit includes filter drier, electronic expansion valve, liquid line and discharge service valves. Capacity modulation is achieved by turning compressors on and off. The unit has four capacity stages.

Unit Controls All unit controls are housed in an outdoor rated weather tight enclosure with removable plates to allow for customer connection of power wiring and remote interlocks. All controls, including sensors, are factory mounted and tested prior to shipment. Microcomputer controls provide all control functions including startup and shut down, leaving chilled/hot water temperature control, evaporator flow proving, compressor staging and speed control, electronic expansion valve modulation, condenser fan sequencing and speed control, anti-recycle logic, automatic lead/lag compressor starting and load limiting.

The Symbio (TM) 800 unit control module, utilizing Adaptive Control microprocessor, automatically takes action to avoid unit shut-down due to abnormal operating conditions associated with low refrigerant pressure, high condensing pressure, Should the abnormal operating condition continue until a protective limit is violated, the unit will be shut down. Unit protective functions of the Symbio (TM) 800, include loss of chilled water flow, evaporator freezing, loss of refrigerant, low refrigerant pressure, high refrigerant pressure, high compressor motor temperature, and loss of oil to the compressor..

Job Name: SJAFB 4522 and budget chillers Quantity: 1

Prepared For: Sales Office: Wilmington TCS Ind SO NC

2024/11/26 09:31:13 Page 18 of 19

Pump Pump package includes: two pumps, expansion vessel, drainage valve, shut-off valve at entering and leaving connections.

The pump package is single point power integrated into the chiller unit power with a separate factory wired control panel and separate power for freeze protection.

The control of the pump is integrated into the chiller controller. The Symbio (TM) 800 unit control module displays evaporator pump starts and run-times. Freeze protection down to an ambient of -29°C (-20°F) is included as standard. The cold parts of the pump package will be insulated. Designed with one redundant pump, it is controlled to operate both pumps through a lead/lag and failure/recovery functionality.

The pump offering can be for applications that have short water loops, de-coupled systems or for applications where the integrated chiller pump could serve the entire loop volume.

A variable speed drive is installed in an additional panel to control the pump. The inverter is adjusted upon start up to balance the system flow and head requirements. The purpose is to save on wasted pump energy caused by a traditional balancing valve.

Buffer Tank The water tank is factory-installed for easy installation at the building site and it is engineered for continuous flow. Tank construction is welded steel; it is powder coated, fully insulated and designed with freeze protection down to -20°F (-29°C). It is rated with a waterside working pressure of 150 psig and tested at 225 psig.. Water connections are grooved pipe.

The purpose of the tank is to increase the chilled water circuit inertia, which is necessary with short water loops. A high circuit inertia reduces the compressor cycling to increase the compressor life span and allow for more precise water temperature accuracy. It also saves energy as compared to hot gas bypass.

Note: An additional 115V, 20 amp field provided power connection is required to power the buffer tank heaters.

Architectural Louvered Panels Louvered panels cover the complete condensing coil and service area beneath the condenser.

Isolators Molded elastomeric isolators, sized to reduce vibration transmission to the supporting structure when the unit is installed, ship with the chiller.

Job Name: SJAFB 4522 and budget chillers Quantity: 1

Prepared For: Sales Office: Wilmington TCS Ind SO NC

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