Record_Submittal_11.22.24_-_PCSB_-_Oak_Grove_Chillers.pdf

© 2024 Trane Technologies All rights reserved Record Submittal (11.22.24) - PCSB - Oak Grove Chillers.docx

Record Chiller Submittal

Prepared For:

PCSB

Osborn Engineering

Date: November 22, 2024

Job Name:

PCSB - Oak Grove Chillers

Opportunity ID: 7897458

Trane U.S. Inc. is pleased to provide the following submittal for your review and approval.

Product Summary

Qty Product 2 Air-Cooled Scroll

Brandon May Trane U.S. Inc.

902 N. Himes Avenue Tampa, FL 33609 Office Phone: (813) 877-8251

The attached information describes the equipment we propose to furnish for this project and is submitted for your approval.

Submittal acceptance and return is a critical step, so please ensure submittals are returned with approval to release to production within 14 days of submittal date.

Product performance and submittal data is valid for a period of 6 months from the date of submittal generation. If six months or more has elapsed between submittal generation and equipment release, the product performance and submittal data will need to be verified. It is the customer’s responsibility to obtain such verification.

PCSB - Oak Grove Chillers November 22, 2024

Equipment Submittal Page 2 of 22

Tag Data - Air-Cooled Scroll (Qty: 2)

Item Tag(s) Qty Description Model Number

A1 CH-1,

CH-2

2 Ascend(TM) Air-Cooled Chiller Models ACS

ACSA2302EUA*QEXLXNB2XLNLSCEX1CAUBXXAA

1XXXXONX

Product Data - Air-Cooled Scroll Item: A1 Qty: 2 Tag(s): ACSA-1, ACSA-2

Air-Cooled Scroll Chiller Unit Startup By Trane 230 Nominal Tons Scroll With Variable Volume Ratio 460V/60Hz/3Phase Pueblo, CO United States Superior Sound Attenuation with Noise Reduction Request

Low noise fans Compressor sound attenuation UL Listed to U.S. and Canadian safety std via ETL - 2019 Refrigerant Charge R-454B AHRI Certified ASHRAE 90.1/CSA Compliant Standard Cooling (Above 40 Deg F) Brazed Plate Heat Exchanger Water Grooved Pipe Connection Flow Switch Set Point 60 Factory Insulation 0.75 Inch Low Ambient Standard Condenser coating EC Condenser Fan Motors Across-The-Line-Starter Single Point Unit Power Connection Circuit Breaker Default Short Circuit Rating Under/Over Voltage Protection BACnet MS/TP Interface Architectural Louvered Panels Elastomeric Isolators 10-year parts, labor, and refrigerant warranty

Equipment Submittal Page 3 of 22

Performance Data - Air-Cooled Scroll

Tags CH-1, CH-2

Refrigeration capacity (tons) 214.35

Unit Power (Cooling Mode) (kW) 249.76

Compressor Power (Cooling Mode) (kW) 234.88

Efficiency (EER (Btu/W-h)) 10.298

IPLV (Cooling Mode) (EER (Btu/W-h)) 16.903

NPLV (Cooling Mode) (EER (Btu/W-h)) 17.159

Evap leaving temp (F) 45.00

Evap entering temp (F) 55.00

Evap flow rate (gpm) 512.75

Evaporator Head Loss (ft) 14.07

Evap fouling factor (hr-sq ft-deg F/ Btu) 0.000100

Evap fluid freeze point (F) 32.00

VPF Min Evap Flow Rate (gpm) 315.75

Strainer Head Loss (ft) 2.36

Saturated Evap Temp - Ckt 1 (F) 38.04

Saturated Evap Temp - Ckt 2 (F) 38.04

Ambient air temp (F) 95.00

Saturated Cond Temp - Ckt 1 (F) 125.35

Saturated Cond Temp - Ckt 2 (Cooling) (F) 125.35

Compressor 1A - RLA (A) 69.00

Compressor 1B - RLA (A) 69.00

Compressor 1C - RLA (A) 69.00

Compressor 2A - RLA (A) 69.00

Compressor 2B - RLA (A) 69.00

Compressor 2C - RLA (A) 69.00

Compressor 1A - LRA XL (A) 389.00

Compressor 1B - LRA XL (A) 389.00

Compressor 1C - LRA XL (A) 389.00

Compressor 2A - LRA XL (A) 389.00

Compressor 2B - LRA XL (A) 389.00

Compressor 2C - LRA XL (A) 389.00

Number of condenser fans 12

FLA - condenser fan (each) (A) 2.50

Fan Motor Power (Cooling) (kW) 15.70

Single point power MCA (A) 466

Single point power MOP (A) 500

Short circuit current rating (A) 10000

Refrigerant charge - ckt 1 (lb) 82.0

Refrigerant Charge - ckt 1 (Metric) (kg) 37

Refrigerant charge - ckt 2 (lb) 82.0

Refrigerant Charge - ckt 2 (Metric) (kg) 37

Oil Charge - Ckt 1 (gal) 4.80

Oil Charge - Ckt 1 (Metric) (L) 18.20

Oil Charge - Ckt 2 (gal) 4.80

Oil Charge - Ckt 2 (Metric) (L) 18.20

Shipping weight (lb) 10523

Operating weight (lb) 10701

Length (in) 338

Width (in) 88

Height (in) 98

Rated Cooling Capacity (AHRI) (tons) 210.78

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

10.155

Number of Refrigerant Circuits 2

Equipment Submittal Page 4 of 22

Tags CH-1, CH-2

Number of Compressors CKT1 3

Number of Compressors CKT2 3

Total Number of Compressors 6

Equipment Submittal Page 5 of 22

Product Report - Air-Cooled Scroll Item: A1 Qty: 2 Tag(s): CH-1, CH-2

Equipment Submittal Page 6 of 22

Product Report - Air-Cooled Scroll

Equipment Submittal Page 7 of 22

Mechanical Specifications - Air-Cooled Scroll Item: A1 Qty: 2 Tag(s): CH-1, CH-2

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 leak and pressure tested at 650 psig high side, 495 psig low side, then evacuated and charged. All Air-cooled chillers are factory tested to confirm operation prior to shipment.

Standard power connections include main three phase power to the compressors, condenser fans and control power transformer.

Note: A separate field supplied low voltage power source is required to power the evaporator freeze protection. The evaporator heat trace terminates in the left hand side of the control cabinet behind the low voltage door. Termination points are 1X6-1 and 1X6-2 for the evaporator heat trace.

Unit panels, structural elements and control boxes are constructed of galvanized steel and mounted on a bolted galvanized steel base. Unit panels, control boxes and the structural base are finished with a baked on powder paint.

Anytime water only is present in the evaporator, the Trane Symbio (TM) 800 controller must have flow control of the chilled water system. Flow control can be done either directly or through an input to a building automation system to conduct an action resulting in minimum flow through the chiller evaporator barrel to avoid potentially catastrophic damage to the evaporator due to freezing. If the system has sufficient glycol to protect down to the lowest expected ambient, flow control is optional.

Factory Refrigerant Charge (R454B) Packaged units ship with a full operating charge of oil and R454B refrigerant.

Compressor and Motor The unit is equipped with three hermetic, direct-drive, 3600 rpm 60 Hz suction gas-cooled scroll compressors per circuit. 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 60335-2-40 UL. The starter is an across-the-line configuration, factory-mounted and fully pre-wired to the compressor motor and control panel. A factory-installed, factory-wired control power transformer provides all unit power.

A molded case standard interrupting capacity circuit breaker, factory pre-wired with terminal block power connections and equipped with a lockable external operator handle, is available to disconnect the chiller from main power.

Short Circuit Current Rating (SCCR) A short circuit current rating offers a measure of safety for what the starter panel enclosure is able to withstand in the event of an explosion caused by a short circuit.

Short circuit current rating of 10kA is provided.

Equipment Submittal Page 8 of 22

Evaporator Braze plate heat exchanger is made of stainless steel with copper as the braze material. It is designed to withstand a refrigerant side working pressure of 650 psig (44.8 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 -20.0 F, All evaporators have grooved pipe connections.

The evaporator is covered with factory-installed 0.75 inch (19.05 mm) Armaflex II or equal (k=0.28) insulation. Foam insulation is used on the suction line.

Unit is designed for operation in standard leaving evaporator temperature greater than or equal to 40.0 F.

Air-cooled condenser coils use all aluminum brazed fin constructions. Completely assembled coils are then dipped and baked in an electro-mechanically bonded flexible epoxy coating. Coating covers all condenser coil surfaces with uniform coating to protect against corrosion with negligible performance loss

Condenser Fan Motor (Variable Speed Motor)

The motor running speed can be adjusted to make sure unit runs with higher efficiency.

The unit starts and operates from -20.0 F to 115.0 F.

Refrigerant Circuits and Capacity Modulation 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 six 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.

The display is outdoor capable including an UV resistant touchscreen with removable cover.

Remote Communications - BACnet Interface (MS/TP) BACnet Interface allows the user to easily interface with using BACnet MS/TP via a single twisted-pair wiring to a factory-installed and tested communication board. Provides support for BACnet defined MS/TP protocol as defined by ASHRAE standard 135-2004.

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.

Equipment Submittal Page 9 of 22

Dimensional Drawings - Air-Cooled Scroll

Equipment Submittal Page 10 of 22

Equipment Submittal Page 11 of 22

Equipment Submittal Page 12 of 22

Equipment Submittal Page 13 of 22

Equipment Submittal Page 14 of 22

Weight, Clearance & Rigging - Air-Cooled Scroll

Equipment Submittal Page 15 of 22

Weight, Clearance & Rigging - Air-Cooled Scroll

Equipment Submittal Page 16 of 22

Accessory - Air-Cooled Scroll

Equipment Submittal Page 17 of 22

Equipment Submittal Page 18 of 22

Equipment Submittal Page 19 of 22

Equipment Submittal Page 20 of 22

Field Wiring - Air-Cooled Scroll

Equipment Submittal Page 21 of 22

Equipment Submittal Page 22 of 22