Pre-Commissioning & Commissioning

[Logan_59]

I was tasked with writing a Commissioning and Qualification of Facilities, Utilities, Equipment and Systems SOP. I needed to make an all encompassing Pre-commissioning and Commissioning Checklist. What should be under pre-commissioning and what should go under commissioning? They look the same to me. Please help..

 

[LittleInch]

Therein lies a multitude of sins....

Before you do any of that you need to work out your own definition of these two items and when does one change to another.

In general pre commissioning relates to energisation and testing of components which are not functioning in an operating condition. So any temperature sensors, dampers, lights, controls etc are tested to make sure they are all connected and responding to different inputs, but only when you can do so without needing air flow or coolant / refrigerant.

now whether first fill of said fluids is pre or actual commissioning tends to vary a bit, but I would call it actual commissioning.

Then you fill it with fluids, turn on the motors and do all your tests etc.

But you can set the break point where you like.....

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[GT-EGR]

I think anything “pre” doesn’t have to do with actually running the equipment and seeing if it performs correctly, but instead it is making sure the system is up and ready for commissioning and all the parts and pieces are in place. For example - is it powered on, are the correct sensors in place, does it have gas connected at the right pressure, and so on.

Actual commissioning is going through each operational step to ensure the equipment performs correctly under whatever operating scenarios it was designed for.

The pre-part basically makes sure that when commissioning day comes everyone doesn’t waste their time finding out the unit doesn’t even start or that 100’ of cabling is missing to a sensor that is critical to every part of the test.

 

[BenMacier]

For pre-commissioning and commissioning of building services, I would recommend having a look at BSRIA guides:

https://www.bsria.com/uk/information-training/bookshop/commissioning_guides/

Easy to understand and follow. There have plenty of templates and checklists to use!