22S004_558 LAB COMPUTER ROOM HANDLER UNIT SPECIFICATIONS_8-12-2024.pdf
PDF 124 KB Posted
- Attached to
- Computer Room Air Handlers
- Solicitation number
- FA8126-24-Q-0051
About this file
This document contains the technical specifications for two Computer Room Air Handler (CRAH) units required for Project 22S004. The CRAH units must have a downflow blower configuration, a cooling capacity of 174,000 BTU/HR, and a minimum airflow of 9,000 CFM. Key requirements include a 2-way chilled water control valve, infrared humidification, MERV 8 filters, and electronically commutated (EC) direct drive variable speed fans. The units must be equipped with humidity and temperature sensors, as well as a display for setting parameters. Physical dimensions and weights are also specified.
The related federal contract opportunity is Solicitation FA8126-24-Q-0051 for Computer Room Air Handlers, issued by the Department of the Air Force Materiel Command Air Force Sustainment Center. This is a 100% small business set-aside solicitation, with a description that references the attached item specifications. The solicitation replaces/updates the previous solicitation FA8126-24-Q-0045.
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Text version
Project 22S004
558 LAB COMPUTER ROOM HANDLER UNIT SPECIFICATIONS (CRAH-1 & CRAH-2)
• COMPUTER ROOM AIR HANDLER UNIT (CRAH)
• BLOWER CONFIGURATION: DOWNFLOW.
• CAPACITY BASED ON 45°F ENTERING WATER, 10°F WATER RISE
o ENTERING TEMPERATURE: 75°F DB, 61°F WB, 45%RH o COOLING CAPACITY: 174,000 BTU/HR (NOMINAL 51kW) MINIMUM
• AIR FLOW: 9,000 CFM MINIMUM
• CHILLED WATER CONTROL VALVE: 2-WAY, 1-1/2"∅ STANDARD PRESSURE.
• INFRARED HUMIDIFICATION
• CHILLED WATER COIL FACE VELOCITY: 500 FPM MAXIMUM
• MERV 8 FILTER MINIMUM
• UNIT FLOOR STAND FOR INSTALLATION IN 18" RAISED FLOOR
• CONDENSATE PUMP, FACTORY INSTALLED
• FACTORY INSTALLED DISCONNECT SWITCH
• ELECTRICAL DATA: UNIT VOLTAGE: 460/3/60
• AIR RETURN TOP OPENING
• CHILLED WATER SUPPLY/RETURN CONNECTION SIZE: 1-5/8" O.D. (COPPER)
• INFRARED HUMIDIFIER CONNECTION SIZE: 1/4“ O.D. (COPPER)
• CONDENSATE DRAIN: 3/4" (NPTF)
• ELECTRIC REHEAT SECTION FOR DEHUMIDIFICATION
• SMOKE DETECTION SENSOR
• UNDERFLOOW WATER DETECTION SENSOR CABLE
• ELECTRONICALLY COMMUTATED (EC) DIRECT DRIVE VARIABLE SPEED FAN(S)
• EQUIPPED WITH:
o HUMIDITY SENSOR o TEMPERATURE SENSOR o DISPLAY WITH MENU DRIVEN VIEWING AND EDITING OF SET POINTS, OPERATIONAL STATUS, ALARM CONDITIONS.
• Unit Cabinet Dimensional Data o Length: 74” Maximum o Width: 35” Maximum o Height: 76” Maximum o Weight: 1,500 Lbs. Dry Weight Maximum
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