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CRCW-12
CRCW-24
™
Cold Row Chilled Water (CW) Engineering Manual
This precision data center air-conditioning system
®
BL A CK BOX
uses the latest, state-of-the-art control technology.
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)
Customer
FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746
Support
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Information
Web site: www.blackbox.com •
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Trademarks Used in this Manual Trademarks Used in this Manual Black Box and the Double Diamond logo are registered trademarks, and Cold Row is a trademark, of BB Technologies, Inc. Armaflex is a registered trademark of Armacell Enterprise GmBH. UL is a registered trademark of Underwriters Laboratories. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. Page 2 724-746-5500 | blackbox.com 724-746-5500 | blackbox.com
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Table of Contents Table of Contents 1. About the Cold Row CW ......................................................................................................................................................4 2. Features ...............................................................................................................................................................................5 3. Configurations ............................................................................
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Chapter 1: About the Cold Row CW 1. About the Cold Row CW Designed for scalability, reliability, and seamless integration into new or existing data centers; the rack cooling systems are suitable for use in open and contained hot-aisle and cold-aisle configurations. The models covered in this manual are ideal for hot-spot cooling in small- to enterprise-size data centers. Typical applications include: • Internet/Web hosting • Telecommunications • Financial/banking • Insurance • Airlines/m
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Chapter 2: Features 2. Features Chilled water (CW) is supplied to the Cold Row CW unit via a building chiller or other chilled water plant. Chilled water has high affinity for heat, making it a very efficient cooling method. The E² controller enables independent valve and fan control so the unit can adjust immediately, and precisely, to varying heat loads and optimize energy efficiency. Two models are available: Table 2-1. Available models. Product Code Product Name CRCW-12 Cold Row CW, 12" CR
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Chapter 2: Features Chiller (Full Capacity Cold Row CW or Trim) Chilled Water Pump Figure 2-1. Traditional cooling example. Chiller Cold Row CW Closed Loop Cooling Tower Pump Chilled Water Pump Cooling Tower Figure 2-2. Hybrid-free cooling diagram. Page 6 724-746-5500 | blackbox.com 724-746-5500 | blackbox.com
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Chapter 3: Configurations 3. Configurations Open Aisle Configuration Open aisle configuration organizes racks in a single row or in hot and cold aisle rows, but without containment. The Cold Row CW draws hot air from the external environment or hot aisle, removes the heat, and supplies cooled air to the front of IT equipment in the cold aisle. Open Aisle Containment with Side Discharge Cold Aisle Containment Cold aisle containment captures cooled air from the Cold Row CW and prevents it f
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Chapter 4: Technical Data 4. Technical Data Table 4-1. CW System Technical Data. Model 12" Chilled Water, CRCW-12 24" Chilled Water, CRCW-24 Chilled Water Control Valve 2-Way (Standard) — Modulating Valve Pressure Rating — psi 400 400 Close-off Pressure Rating — psi 200 200 3-Way (optional) — Modulating Valve Pressure Rating — psi 400 400 Close-off Pressure Rating — psi 200 200 Chilled Water Coil — Aluminum Fin, Copper Tube 2 Rows/Face Area (ft. ) 4/5.8 4/11.6 Face Velocity, fpm 500 500 Blower/
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Chapter 5: Performance, Electrical, and Sound Data 5. Performance, Electrical, and Sound Data Table 5-1. Performance Data. Total System Total Capacity Sensible Capacity Flow Rate 12" Chilled Water Temperature Pressure Drop (CRCW-12) Change BTU/H kW BTU/H kW GPM (ft. H O) 2 100° F DB/69.2° F WB Entering AIr Temperature 10° F Temperature 127,008 37.2 125,200 36.7 25.7 18.0 change 40° F EWT 12° F Temperature 119,461 35.0 119,461 35.0 20.2 12.2 change 10° F Temperature 107,333 31.4 107,333 31.4
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Chapter 5: Performance, Electrical, and Sound Data Table 5-1 (continued). Performance Data. Total System Total Capacity Sensible Capacity Flow Rate Pressure Drop 12" Chilled Water Temperature (CRCW-12) Change BTU/H kW BTU/H kW GPM (ft. H O) 2 80° F DB/64.5° F WB Entering AIr Temperature 10° F Temperature 81,155 23.8 77,151 22.6 16.6 9.0 change 40° F EWT 12° F Temperature 72,250 21.2 72,250 21.2 12.3 6.0 change 10° F Temperature 61,703 18.1 61,703 18.1 12.6 6.2 change 45° F EWT 12° F Tempera
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Chapter 5: Performance, Electrical, and Sound Data Table 5-1 (continued). Performance Data. Total System Total Capacity Sensible Capacity Flow Rate Pressure Drop 24" Chilled Water Temperature (CRCW-24) Change BTU/H kW BTU/H kW GPM (ft. H O) 2 90° F DB/66.1° F WB Entering AIr Temperature 10° F Temperature 221,108 64.7 204,623 59.9 46.2 29.8 change 40° F EWT 12° F Temperature 207,922 60.9 199,053 58.3 36.2 19.6 change 10° F Temperature 177,357 51.9 177,357 51.9 37.4 20.3 change 45° F EWT 12°
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Chapter 5: Performance, Electrical, and Sound Data Table 5-2. Electrical Data. CRCW-12 CRCW-24 Electrical Data FLA MCA MFS FLA MCA MFS Cooling Only 120/1/60 9.5 11.9 15 N/A N/A N/A 208/1/60 5.7 7.1 15 N/A N/A N/A 208/3/60 5.7 7.1 15 10.0 12.5 15 460/3/60 2.8 3.6 15 4.8 6.0 15 575/3/60 2.3 2.9 15 3.9 4.9 15s Cooling and Humidifier 120/1/60 N/A N/A N/A N/A N/A N/A 208/1/60 N/A N/A N/A N/A N/A N/A 208/3/60 N/A N/A N/A 19.2 24.0 30 460/3/60 N/A N/A N/A 9.0 11.2 15 575/3/60 N/A N/A N/A 7.3 9.1 15 NOT
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Chapter 6: Dimensional Data 6. Dimensional Data Top Piping Option Bottom Piping Option Power Connections Piping 11.6" Connections Condensate Connection Air In 77.8" Air Condensate Out Connection Piping Connections Power 42.1" Connections Figure 6-1a. Size and piping options, CRCW-12. 724-746-5500 | blackbox.com 724-746-5500 | blackbox.com Page 13
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Chapter 6: Dimensional Data Side-Diverted Front Panel Piping Option, CRCW-12 11.6" 77.8" 48.3" Figure 6-1b. Size and piping options, CRCW-12. Page 14 724-746-5500 | blackbox.com 724-746-5500 | blackbox.com
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Chapter 6: Dimensional Data Top Piping Option Bottom Piping Option Humidifier Connections Power Connections Piping 23.4" Connections Condensate Connection Air In 77.8" Piping Connections Air Out Condensate Connection Humidifier Power Connection Connections 42.1" Figure 6-2a. Size and piping options, CRCW-24. 724-746-5500 | blackbox.com 724-746-5500 | blackbox.com Page
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Chapter 6: Dimensional Data Side-Diverted Front Panel Piping Option, CRCW-24 Figure 6-2b. Size and piping options, CRCW-24. Page 16 724-746-5500 | blackbox.com 724-746-5500 | blackbox.com
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Chapter 7: Product Features 7. Product Features Table 7-1. Product features. Features Part Numbers Cabinet CRCW-12 CRCW-24 Galvanized Steel, Black Power-Coated Finish Standard Standard Air Pattern and Filtration Front Discharge Standard Standard Front Diverted Plenum Discharge Optional Optional Permanent Washable Filters Standard Standard Mechanical Components Backward Inclined, Plenum-Style Fan, with an EC Motor Standard Standard Chilled Water Cooling Coil Standard Standard Piping Configuration
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Chapter 8: Product Guide Specifications 8. Product Guide Specifications SUMMARY This specification describes requirements for a precision environmental control system. The Cold Row CW is a row-based cooling system that provides precision temperature control (and humidity control for the 24" models) for computer rooms, or rooms containing telecommunications or other highly sensitive heat load equipment, where continuous 24 hours a day, 365 days a year air conditioning is required. Designed wi
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Chapter 8: Product Guide Specifications CHILLED WATER COOLING COIL The coil must be constructed of seamless drawn copper tubes, mechanically bonded to tempered aluminum fins with enhanced fin design for maximum heat transfer, and mounted in a stainless steel condensate drain pan. The coil must be designed for a maximum of 500 ft./min. face velocity. The water circuit will be designed to distribute water into the entire coil face area. PIPING CONFIGURATION Top piping: When top piping is specifi
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Chapter 8: Product Guide Specifications ELECTRICAL SYSTEM The electrical system must conform to National Electrical Code (NEC) requirements. In accordance with NEC Class II requirements, the control circuit must be 24 volts AC wire, and control circuit wiring must not be smaller than 18 AWG. All wiring must be neatly wrapped, or run in conduit, or cable trays, and routed in bundles. Each wire must end with a service loop and be securely fastened by an approved method. Each wire in the unit m
