Hi Andrew

One furthe point - if there are periods in the comissioning programme that relate to time - not work - such as a static presuure test over 24 hours - make sure you allocate a 24hr/7day calendar to the bar and set the duration in calendar hours/days.

Best regards

Mike Testro

Hi Andrew,

Yes, all links are FS; however, the "3rd dynamic flush" and the "dose passivator & bioside" can take place at the same tiem, i.e. there are FS to "add & circulate cleaner" and then lead to "backflush & forward flush main plant & equipment"

I hope this helps.

Hi Andrew

All programmes should be FS logic.

Best regards

Mike Testro

For a typical mechanical system (usually LTHW or CHW), the requirements, water treatment and commissioning activities should be:

Requirements:

1) Power available to the system pumps (temporary or permanent)
2) Drainage system available (temporary or permanent)
3) Water supply available
4) Pipework completed, pressured tested & signed off

Water Treatment & Commissioning activities:

1) System Flush (static and dynamic) - approximately 20 days
2) System Chemical Cleaning - approximately 10 days
3) Fill & Vent System - approximately 2 days
4) System Proportional Balance - approximately 10 days
5) Regulate & Balance Equipment - approximately 5 days
6) System witness & sign off

For a bit more detailed programme:

1) Static Flush
2) 1st Dynamic Flush
3) Dose & circulate bioside
4) 2nd Dynamic Flush
5) Add & circulate cleaner
6) 3rd Dynamic Flush
7) Dose passivator & bioside
8) Backflush & forward flush main plant & equipment
9) Backflush & forward flush terminal units (eg.g FCUs, depending on the system)
10) Dose final inhibitor & bioside
11) Final tamples taken (7 days from the last activity; this is a milestone)
12) Laboratory analysis of final samples
13) System witness & sign off

Of course, this depends on the scope of works and the contract requirements. Also, I have found it useful to list all your systems; you can use the consultant’s schematics for that.

Dear Andrew,

You might want to list the systems that you have. Sometimes up to 17 EM systems depending on the client.

You also need to know the standards and the specifications that you are working with. Some buildings have "Fundamental Commissioning" and others require "Enhanced Commissioing". These terms are associated with the new Green Buildings Requirements.

If you are working on certifying you building, then you might want to consider working with Energy Management Companies who have indepth experience about commissioning of buildings.

With kind regards,

Samer