ASHRAE Journal - November 2009 - 12

Re: Integrated Design & UFAD I am writing with respect to the July 2009 ASHRAE Journal article “Integrated Design & UFAD.” While it is informative about UFAD, I have concerns with two bits of advice it offers. One is that integrity of design and sound commissioning are only beneficial with new, advanced technology systems. The other is that it’s okay to put thermostats in the wrong place as long as you instruct operators to misadjust the setpoints accordingly. David S. Allen, P.E., Member ASHRAE, Chelmsford, Mass. Re: Case Against Balancing Valves It was entertaining to see the letters in the September 2009 issue on balancing valves. It seems the debate, which has raged for more than 20 years, will continue until the industry accepts the fact that pressureindependent control valves are required to solve the chronic flow problems designers and manufacturers have inflicted building engineers with for years. Paul K. Skoglund, Member ASHRAE, Woodinville, Wash. Regarding thermostat placement, temperature gradients vary with heat generation and airflow rates in stratified environments. As operating conditions may be uncertain at the time of design and may vary during building operation, the authors believe that a “soft” adjustment would be most effective. Jim Love, Ph.D., P.Eng., Member ASHRAE, Calgary, AB, Canada Author Responds Regarding the matter Mr. Allen considers most important, the authors consider commissioning to be especially important where innovative systems are used, as well as a good general practice. We tried to make the case that additional scope may be required to successfully commission innovative systems. www.info.hotims.com/25210-96 www.info.hotims.com/25210-20 ASHRAE Journal November 2009

ASHRAE Journal - November 2009

Table of Contents for the Digital Edition of ASHRAE Journal - November 2009

ASHRAE Journal - November 2009
Contents
Commentary
Industry News
Letters
Meetings and Shows
Feature Articles
Upgrading Chilled-Water Systems
50th Anniversary Feature: Energy Savings from Pump Impeller Trimming
Building Sciences
InfoCenter
Special Supplement: BACnet® Today
BACnet Table of Contents
BACnet and the Smart Grid
An Untangled Web: How BACnet is Connecting at ASHRAE’s Headquarters
Visualizing BACnet
BACnet & Trigeneration
BACnet Gets Smaller
Technical Topics
Washington Report
Special Products
Emerging Technologies
People
Research Topics
Products
Classified Advertising
Advertisers Index
ASHRAE Journal - November 2009 - ASHRAE Journal - November 2009
ASHRAE Journal - November 2009 - Cover2
ASHRAE Journal - November 2009 - 1
ASHRAE Journal - November 2009 - 2
ASHRAE Journal - November 2009 - Contents
ASHRAE Journal - November 2009 - 4
ASHRAE Journal - November 2009 - Commentary
ASHRAE Journal - November 2009 - Industry News
ASHRAE Journal - November 2009 - 7
ASHRAE Journal - November 2009 - Letters
ASHRAE Journal - November 2009 - 9
ASHRAE Journal - November 2009 - 10
ASHRAE Journal - November 2009 - 11
ASHRAE Journal - November 2009 - 12
ASHRAE Journal - November 2009 - 13
ASHRAE Journal - November 2009 - Meetings and Shows
ASHRAE Journal - November 2009 - 15
ASHRAE Journal - November 2009 - Upgrading Chilled-Water Systems
ASHRAE Journal - November 2009 - 17
ASHRAE Journal - November 2009 - 18
ASHRAE Journal - November 2009 - 19
ASHRAE Journal - November 2009 - 20
ASHRAE Journal - November 2009 - 21
ASHRAE Journal - November 2009 - 22
ASHRAE Journal - November 2009 - 23
ASHRAE Journal - November 2009 - 24
ASHRAE Journal - November 2009 - 25
ASHRAE Journal - November 2009 - 26
ASHRAE Journal - November 2009 - 27
ASHRAE Journal - November 2009 - 28
ASHRAE Journal - November 2009 - 29
ASHRAE Journal - November 2009 - 30
ASHRAE Journal - November 2009 - 31
ASHRAE Journal - November 2009 - 32
ASHRAE Journal - November 2009 - 33
ASHRAE Journal - November 2009 - 33A
ASHRAE Journal - November 2009 - 33B
ASHRAE Journal - November 2009 - 50th Anniversary Feature: Energy Savings from Pump Impeller Trimming
ASHRAE Journal - November 2009 - 35
ASHRAE Journal - November 2009 - 36
ASHRAE Journal - November 2009 - 37
ASHRAE Journal - November 2009 - 38
ASHRAE Journal - November 2009 - 39
ASHRAE Journal - November 2009 - 40
ASHRAE Journal - November 2009 - 41
ASHRAE Journal - November 2009 - 42
ASHRAE Journal - November 2009 - 43
ASHRAE Journal - November 2009 - 44
ASHRAE Journal - November 2009 - 45
ASHRAE Journal - November 2009 - Building Sciences
ASHRAE Journal - November 2009 - 47
ASHRAE Journal - November 2009 - 48
ASHRAE Journal - November 2009 - 49
ASHRAE Journal - November 2009 - 50
ASHRAE Journal - November 2009 - 51
ASHRAE Journal - November 2009 - 52
ASHRAE Journal - November 2009 - 53
ASHRAE Journal - November 2009 - InfoCenter
ASHRAE Journal - November 2009 - 55
ASHRAE Journal - November 2009 - 56
ASHRAE Journal - November 2009 - 57
ASHRAE Journal - November 2009 - 58
ASHRAE Journal - November 2009 - 59
ASHRAE Journal - November 2009 - 60
ASHRAE Journal - November 2009 - 61
ASHRAE Journal - November 2009 - 62
ASHRAE Journal - November 2009 - 63
ASHRAE Journal - November 2009 - 64
ASHRAE Journal - November 2009 - Special Supplement: BACnet® Today
ASHRAE Journal - November 2009 - B2
ASHRAE Journal - November 2009 - B3
ASHRAE Journal - November 2009 - BACnet Table of Contents
ASHRAE Journal - November 2009 - B5
ASHRAE Journal - November 2009 - B6
ASHRAE Journal - November 2009 - B7
ASHRAE Journal - November 2009 - BACnet and the Smart Grid
ASHRAE Journal - November 2009 - B9
ASHRAE Journal - November 2009 - B10
ASHRAE Journal - November 2009 - B11
ASHRAE Journal - November 2009 - B12
ASHRAE Journal - November 2009 - B13
ASHRAE Journal - November 2009 - An Untangled Web: How BACnet is Connecting at ASHRAE’s Headquarters
ASHRAE Journal - November 2009 - B15
ASHRAE Journal - November 2009 - B16
ASHRAE Journal - November 2009 - B17
ASHRAE Journal - November 2009 - B18
ASHRAE Journal - November 2009 - Visualizing BACnet
ASHRAE Journal - November 2009 - B20
ASHRAE Journal - November 2009 - B21
ASHRAE Journal - November 2009 - B22
ASHRAE Journal - November 2009 - B23
ASHRAE Journal - November 2009 - BACnet & Trigeneration
ASHRAE Journal - November 2009 - B25
ASHRAE Journal - November 2009 - B26
ASHRAE Journal - November 2009 - B27
ASHRAE Journal - November 2009 - BACnet Gets Smaller
ASHRAE Journal - November 2009 - B29
ASHRAE Journal - November 2009 - B30
ASHRAE Journal - November 2009 - B31
ASHRAE Journal - November 2009 - B32
ASHRAE Journal - November 2009 - Technical Topics
ASHRAE Journal - November 2009 - Washington Report
ASHRAE Journal - November 2009 - 67
ASHRAE Journal - November 2009 - Special Products
ASHRAE Journal - November 2009 - 69
ASHRAE Journal - November 2009 - Emerging Technologies
ASHRAE Journal - November 2009 - 71
ASHRAE Journal - November 2009 - People
ASHRAE Journal - November 2009 - 73
ASHRAE Journal - November 2009 - Research Topics
ASHRAE Journal - November 2009 - Products
ASHRAE Journal - November 2009 - Classified Advertising
ASHRAE Journal - November 2009 - 77
ASHRAE Journal - November 2009 - 78
ASHRAE Journal - November 2009 - 79
ASHRAE Journal - November 2009 - Advertisers Index
ASHRAE Journal - November 2009 - Cover3
ASHRAE Journal - November 2009 - Cover4
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