Data Center Redundancy | N, N+1, N+2, 2N & 2N+1 Explained
Data Center redundancy is a critical component of the overall facility design, duplicating key equipment and infrastructure, such as power supplies, cooling systems, and network … Read More
Data Center
![[120] Uptime Data Center Tiers 1 to 4 Article Cover](https://constructandcommission.com/wp-content/uploads/2023/02/120-B-Tier-1-to-4--768x512.png)
DATA CENTER TIERS | Uptime – 1, 2, 3 & 4 Explained
Learn about data center redundancy and the different type of tiers [1, 2, 3 and 4], used to ensure high availability and minimize the risk of downtime or service interruption.
UPTIME TIER RATINGS | The Simple Steps to Obtain them
Discover the simple steps to obtaining Uptime Tier Ratings for your data center. Learn about the three main phases of certification, including TCDD, TCCF, and TCOS. Our guide provides a high-level overview of what is required for each phase and serves as a valuable reference for your journey towards a Tier Rated Data Center.
FREE SIGN-OFF CERTIFICATES | Level 1-7 Data Centre Commissioning + Download
Upon successful conclusion of each different data center commissioning level [0-7], a final certificate is required to be issued to the client and project team … Read More
LEVEL 7 – DATA CENTER COMMISSIONING | Acceptance
Level 7, managed by the client CxA, is usually quick to complete; it concludes the overall project commissioning activities with the client/end-user accepting, during a … Read More
LEVEL 6 – DATA CENTER COMMISSIONING | Closeout & Turnover
Level 6 of the Data Center Commissioning Process moves the project from the onsite commissioning phase to close out, turn over, and hand over. The … Read More
LEVEL 5 – DATA CENTER COMMISSIONING | Integrated Testing
The Level 5 Integrated Testing for a Data Center aims to validate that all installed mechanical, electrical, fire, BMS, and controls systems, including equipment, operate … Read More
LEVEL 4 – DATA CENTER COMMISSIONING | Functional Testing
The Level 4 Data Center Commissioning Stage is usually where the General/Main Contractor hands over the testing responsibilities to the Client Commissioning Agent. The Commissioning … Read More
LEVEL 3 – DATA CENTER COMMISSIONING | Pre-Functional/Start-Up
For Data Center Commissioning, the Level 3 Stage focuses on the following tasks and activities as listed below, proving that the systems have been installed, … Read More
LEVEL 2 – DATA CENTER COMMISSIONING | Component Delivery
Level 2 is the third stage/process to be completed after Level 1. Its focus is on verifying components, equipment, and materials after they have been … Read More
LEVEL 1 – DATA CENTER COMMISSIONING | Factory Testing
Within Data Center Commissioning, Level 1 is the second stage to be completed after Level 0. Its focus is on the Factory Testing Requirements and … Read More
LEVEL 0 – DATA CENTER COMMISSIONING | Design & Planning
Within Data Center Commissioning, Level 0 is usually the first stage to be started, it focuses upon the design and planning of the projects data … Read More
CRAC UNIT | Functional Testing Example + Template
Upon completion of any new CRAC [computer room air conditioning] Unit installation or modifications to an existing unit, there will be a requirement to complete … Read More
GROUP CONTROL | CRAH & CRAC Units
Whether deploying a Hot Standby or Cold Standby strategy to condition a critical space, ‘Group Control’ will be used where multiple CRAH or CRAC Units … Read More
CRAH UNIT | Functional Testing Example + Template
Upon completion of any new CRAH [computer room air handling] Unit installation or modifications to an existing unit, there will be a requirement to complete … Read More
CRAC Unit vs CRAH Unit | What’s the difference?
The difference between a CRAC Unit System and a CRAH Unit System is how the heat is transferred and then removed/ejected from the system. A … Read More
![[049l] B-CRAH Unit Checklist Front](https://constructandcommission.com/wp-content/uploads/2021/12/049l-B-CRAH-Unit-Checklist-Front-768x512.png)
CRAH UNIT | Pre-Functional Checklist
CRAH Unit [PDF] Pre-Commissioning Checklist covering; Delivery, Storage, Installation & Pre-Commissioning/Pre-Functional Checks…
![[079] B-CRAH Unit Overview](https://constructandcommission.com/wp-content/uploads/2021/12/079-B-CRAH-Unit-Overview-768x512.png)
CRAH UNITS | What are they?
Here we provide a high-level overview of what a CRAH Unit is and how they are installed and operated…
![[049k] B-CRAC Unit Checklist Front](https://constructandcommission.com/wp-content/uploads/2021/12/049k-B-CRAC-Unit-Checklist-Front-768x512.png)
CRAC UNIT | Pre-Functional Check List
This CRAC Unit Checklist can be used and completed throughout the project and its different stages covering: Once the pre-functional checks have been completed, including … Read More
![[078] What is a CRAC Unit](https://constructandcommission.com/wp-content/uploads/2021/12/078-B-CRAC-Front-768x512.png)
CRAC UNITS | What are they?
Here we provide a high-level overview of what a CRAC Unit is and how they are installed and operated…