ASHRAE Journal - April 2014 - 47
Technical FeaTure
Fea
is a big difference between the two approaches to commissioning, and it's one of the key reasons why technical
commissioning is a superior strategy that more often
results in a high-performing building-and a satisfied
owner.
In technical commissioning, the
CxA not only develops the PFTs,
but also creates all of the corresponding test forms. The CxA
also reviews the forms after the
contractor fills them out to ensure
they are correct and complete.
While every contractor has the
ultimate QC responsibility to test
and verify their work, the technical-commissioning CxA must go
to the project site and personally
verify field installations whenever
possible. The objective is to verify
that installations are being done
properly and forms are being completed correctly, while the contractor is on-site.
Contractors should leave their
pre-installation meetings with the
understanding that-in addition to
their own testing-the CxA will be
conducting tests and verifications to
ensure that all systems and components have been installed correctly
and start up properly.
In process commissioning, the
CxA's primary function is verifying
that each contractor has properly
completed their own test forms. But
while most contractors are honest
and thorough, relying on a contractor to serve as his own SME is too
often akin to asking the fox to guard
the henhouse.
In contrast, the technicalcommissioning CxA not only creates the test forms, but normally
administers, observes, or performs
the tests. For example, in the
case of the sheet-metal contractor, the CxA serves as the SME in
every aspect of duct construction, pressure classification, construction standards, leakage testing, and
so forth. So it's vital that the CxA (or someone on the
CxA team) have both sheet metal expertise and solid
familiarity with the sheet metal requirements in the
contract documents.
www.info.hotims.com/49803-33
Apri l 2014
ashrae.org
ASHRAE JouRnAl
47
ASHRAE Journal - April 2014
Table of Contents for the Digital Edition of ASHRAE Journal - April 2014
ASHRAE Journal - April 2014
Contents
Commentary
Industry News
Letters
Meetings and Shows
Feature Articles
Lessons Learned from ASHRAE HQ Renovation
Current Trends for Health-Care Ventilation
Technical vs. Process Commissioning: Pre-Functional Testing
Building Sciences
Engineer's Notebook
Technology Award Case Study: Crime Lab Deconstruction
Refrigeration Applications
Technology Award Case Study: Designing for Sustainability
Data Centers
HVAC Applications
Energy Modeling
IAQ Applications
People
Special Products
Classified Advertising
Advertisers Index
ASHRAE Journal - April 2014 - ASHRAE Journal - April 2014
ASHRAE Journal - April 2014 - Cover2
ASHRAE Journal - April 2014 - 1
ASHRAE Journal - April 2014 - 2
ASHRAE Journal - April 2014 - Contents
ASHRAE Journal - April 2014 - Commentary
ASHRAE Journal - April 2014 - 5
ASHRAE Journal - April 2014 - Industry News
ASHRAE Journal - April 2014 - 7
ASHRAE Journal - April 2014 - Letters
ASHRAE Journal - April 2014 - 9
ASHRAE Journal - April 2014 - 10
ASHRAE Journal - April 2014 - 11
ASHRAE Journal - April 2014 - Meetings and Shows
ASHRAE Journal - April 2014 - 13
ASHRAE Journal - April 2014 - Lessons Learned from ASHRAE HQ Renovation
ASHRAE Journal - April 2014 - 15
ASHRAE Journal - April 2014 - 16
ASHRAE Journal - April 2014 - 17
ASHRAE Journal - April 2014 - 18
ASHRAE Journal - April 2014 - 19
ASHRAE Journal - April 2014 - 20
ASHRAE Journal - April 2014 - 21
ASHRAE Journal - April 2014 - 22
ASHRAE Journal - April 2014 - 23
ASHRAE Journal - April 2014 - 24
ASHRAE Journal - April 2014 - 25
ASHRAE Journal - April 2014 - 26
ASHRAE Journal - April 2014 - 27
ASHRAE Journal - April 2014 - 28
ASHRAE Journal - April 2014 - 29
ASHRAE Journal - April 2014 - 30
ASHRAE Journal - April 2014 - 31
ASHRAE Journal - April 2014 - Current Trends for Health-Care Ventilation
ASHRAE Journal - April 2014 - 33
ASHRAE Journal - April 2014 - 34
ASHRAE Journal - April 2014 - 35
ASHRAE Journal - April 2014 - 36
ASHRAE Journal - April 2014 - 37
ASHRAE Journal - April 2014 - 38
ASHRAE Journal - April 2014 - 39
ASHRAE Journal - April 2014 - 40
ASHRAE Journal - April 2014 - 41
ASHRAE Journal - April 2014 - 42
ASHRAE Journal - April 2014 - 43
ASHRAE Journal - April 2014 - Technical vs. Process Commissioning: Pre-Functional Testing
ASHRAE Journal - April 2014 - 45
ASHRAE Journal - April 2014 - 46
ASHRAE Journal - April 2014 - 47
ASHRAE Journal - April 2014 - 48
ASHRAE Journal - April 2014 - 49
ASHRAE Journal - April 2014 - 50
ASHRAE Journal - April 2014 - 51
ASHRAE Journal - April 2014 - Building Sciences
ASHRAE Journal - April 2014 - 53
ASHRAE Journal - April 2014 - 54
ASHRAE Journal - April 2014 - 55
ASHRAE Journal - April 2014 - 56
ASHRAE Journal - April 2014 - 57
ASHRAE Journal - April 2014 - Engineer's Notebook
ASHRAE Journal - April 2014 - 59
ASHRAE Journal - April 2014 - 60
ASHRAE Journal - April 2014 - 61
ASHRAE Journal - April 2014 - 62
ASHRAE Journal - April 2014 - 63
ASHRAE Journal - April 2014 - 64
ASHRAE Journal - April 2014 - 65
ASHRAE Journal - April 2014 - Technology Award Case Study: Crime Lab Deconstruction
ASHRAE Journal - April 2014 - 67
ASHRAE Journal - April 2014 - 68
ASHRAE Journal - April 2014 - 69
ASHRAE Journal - April 2014 - 70
ASHRAE Journal - April 2014 - 71
ASHRAE Journal - April 2014 - 72
ASHRAE Journal - April 2014 - 73
ASHRAE Journal - April 2014 - Refrigeration Applications
ASHRAE Journal - April 2014 - 75
ASHRAE Journal - April 2014 - Technology Award Case Study: Designing for Sustainability
ASHRAE Journal - April 2014 - 77
ASHRAE Journal - April 2014 - 78
ASHRAE Journal - April 2014 - 79
ASHRAE Journal - April 2014 - 80
ASHRAE Journal - April 2014 - 81
ASHRAE Journal - April 2014 - 82
ASHRAE Journal - April 2014 - 83
ASHRAE Journal - April 2014 - Data Centers
ASHRAE Journal - April 2014 - 85
ASHRAE Journal - April 2014 - 86
ASHRAE Journal - April 2014 - 87
ASHRAE Journal - April 2014 - 88
ASHRAE Journal - April 2014 - 89
ASHRAE Journal - April 2014 - HVAC Applications
ASHRAE Journal - April 2014 - 91
ASHRAE Journal - April 2014 - 92
ASHRAE Journal - April 2014 - Energy Modeling
ASHRAE Journal - April 2014 - IAQ Applications
ASHRAE Journal - April 2014 - 95
ASHRAE Journal - April 2014 - 96
ASHRAE Journal - April 2014 - 97
ASHRAE Journal - April 2014 - People
ASHRAE Journal - April 2014 - 99
ASHRAE Journal - April 2014 - 100
ASHRAE Journal - April 2014 - Special Products
ASHRAE Journal - April 2014 - 102
ASHRAE Journal - April 2014 - Classified Advertising
ASHRAE Journal - April 2014 - Advertisers Index
ASHRAE Journal - April 2014 - Cover3
ASHRAE Journal - April 2014 - Cover4
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