374 CS Vault Upgrade Power Requirements.pdf
PDF 48 KB Posted
- Attached to
- Bldg 650 Vault Upgrade
- Solicitation number
- FA520925Q9029
About this file
This document appears to be a detailed electrical load and power distribution specification for a data center facility with two rooms (Room A and Room B). The facility has redundant power systems with A and B sides, each capable of supporting 84 kVA, and includes comprehensive power calculations for HVAC, lighting, outlets, and equipment racks. Room A (Vault) has dimensions of 7350 mm x 7800 mm and contains 14 racks rated at 7 kVA each, while Room B (Front Room) has dimensions of 7350 mm x 4550 mm with 6 racks rated at 7 kVA each.
The power infrastructure includes 300 A 3-pole breakers for A and B sides, a 60 A 3-pole breaker for lighting/HVAC/outlets, and an alarm system. HVAC components consist of wall-mounted CRAC (Computer Room Air Conditioning) Liebert DateMate units - 8 US commercial tons in Room A and 17 US commercial tons in Room B. The load calculations account for various electrical requirements: HVAC power, convenience outlets, and lighting, with specific computations for square footage and VA/sqft. The documentation shows a 60% derate for rack power, resulting in 58.8 kVA for Room A and 25.2 kVA for Room B, ensuring precise power management and redundancy.
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Text version
A Side Breaker = 300 A 3 -pole Breaker
A Side Load = 84 kVA
B Side Breaker = 300 A 3 -pole Breaker
B Side Load = 84 kVA (not to be double counted with A)
Lighting/HVAC/Outlet Breaker = 60 A 3 -pole
Lighting/HVAC/Outlet Load = 17.22 kVA
Place the alarm system on that 60 A too
BREAKER SPACE
A Side Breaker = 300 A 3 -pole Breaker
A Side Load 84 kVA
B Side Breaker = 300 A 3 -pole Breaker
B Side Load = 84 kVA (not to be double counted with A)
Lighting/HVAC/Outlet Breaker = 60 A 3 -pole
Lighting/HVAC/Outlet Load = 17.22 kVA
Room A (Vau1t
EQUIPMENT
7350 mm x 7800 mm
14 Racks @ 7kVA
HVAC (lx Wall CRAC Liebert DateMate)
8 US Commercial US tons of refrigeration
20A@220forHVAC 4.4kVA
Outlets
2* .180=.540kVA
Lights
360 sqft * 3 VA/sqft = kVA 1.080 VA
Therefore, A Side (UPS)
=58.8 kVA + 25.2 kVA =84 kVA
B Side (UPS redundant)
=58.8 kVA + 25.2 kVA =84 kVA
Non UPS Load (3 HVAC + 980 sqft LIGHTS+ 6 convenience OUTLETS)
= 4.4 kVA + 8.8 kVA + 0.540 kVA + 0.540 kVA + 1.860 kVA + 1.080 kVA = 17.22 kVA
Derate @ 60%
58.8 kVA
HVAC (2x Wall CRAC, Liebert DateMate)
17 US Commercial US tons of refrigeration
40A @ 220V
8.8 kVA
Outlets
3 * .180=
.540 kVA
Lights
620 sqft * 3 VA/sqft =
1.860 kVA
Room B (Front Room):
EQUIPMENT
7350 mm x 4550 mm
6 Racks @ 7 kVA
Derate @ 60%
25.2 kVA
| scan09-12-2025-130626-1.pdf |
| scan09-12-2025-130700-1.pdf |
File details come from the government source that posted it. Updated .