September  2015
Industry term of the month
Zonal Pressure Diagnostics
Q: What is ZPD, and how to perform a ZPD test? 

A: ZPDs are used to identify and measure leaks that pass through several zones or spaces of a building. This testing method determines if the attic or crawl space "is connected " (has air leakage) to the house. It can be a powerful diagnostic tool to understand how the home is performing.

These connections are are the pathway for pollutants and infiltration.  ZPD can evaluate issues relating to comfort, energy efficiency, building durability, and indoor air quality.
Educational Webinars
September Webinars

11:00 AM  to 12:00 AM PDT


Thursday, September 10th: 

Zone Pressure Diagnostics (ZPD)

with J. West, Joe Medosch and Bill Eckman of NME$A


Tuesday, September 15th: 

Blower Door 101 

with Joe Medosch and J. West


Tuesday, September 22nd:

DM32 Smart Gauge 101 

with Joe Medosch and J. West

Tuesday, September 29th:

Passive House Testing

with J. West and Kevin Brennan of The Passive House Academy


We offer BPI and InterNACHI CEUs for every webinar.  


We add webinars throughout the month, click here

For more information on our Webinars

Feedback from the field
Q: What is the difference between [Set Pressure] and [Set Speed]?  When would I need to use [Set Speed]?
A: [Set Pressure], allows you to use the @ feature that mathematically adjusts the result to display what the flow would be at the exact test pressure you set.  Must only be used when you're standing next to the fan because if someone opens a door during your test, the fan will speed up; when the door closes, the panels will get blown out of the doorway and the excess pressure may cause damage. 
A: [Set Speed], is used when you are not standing next to the fan.  The speed will stay constant, even if a door is opened. Use this when you are fixing leaks or any time when the fan is not being watched. 

Click here for more information about what your gauge can do. 
Send us your technical challenge
How to do Zonal Pressure Diagnostics (ZPD)
After running a Baseline, get your blower door depressurizing the house to -50 Pa using the speed control knob.  Then connect a tube between the Blue port of Channel A and the garage. The pressure you see on Channel A shows how connected the garage is to the house. This connection is the pathway for exhaust and other pollutants to enter the house.  

This is a simplified explanation, to learn more about ZPD tests, join our webinar on ZPD on September 10th
Tech Challenge

Q: I'm an HVAC contractor, how do I get my DM32 gauge to measure inches of  water column (in. WC)?

A: The DM32 makes it easy to find the measurements you want.

1) Just tap the home screen on Channel B

2) Then tap "Pressure: Pa" until it displays "Pressure: In WC." 

Click here  for more information about what your gauge can do. 
Upcoming Events
Passive House National Conference 
Friday, September 11-Saturday, September 12, 2015 
@ The Hyatt Regency,  151 East Wacker Drive, Chicago, IL.  
Booth 15 in the Crystal Ballroom

Tuesday, September 15-Thursday, September 17, 2015
@ Americas Center, 701 Convention Plaza, St. Louis, MO
Booth 585

Friday, September 18-Sunday, September 20, 2015
@ Energylogic Academy, Estes Park, CO

SMACNA Annual Convention
Tuesday, September 29, 2015
@ The Broadmoor, 1 Lake Avenue, Colorado Springs, CO
Booth 320

Remodeling Show/Deck Expo/JLC Live Residential Construction Show
Wednesday, September 30-Friday, October 2nd
@ Navy Pier, 600 East Grand Avenue, Chicago, IL
Booth 128  
We'll have a live demo and would like to offer a free 2 day pass.  
Click  here  for the promo code.

Smart gauge-New brain for your existing fan
Do you have a Retrotec DM-2 or a TEC DG700 gauge? Consider a new brain to your existing fan. Trade in your old gauge and take advantage of the newest features:
  • Intuitive touch screen
  • Runs all Retrotec and TEC fans
  • Updatable firmware (just to name a few)

Then the Retrotec Gauge exchange is exactly what you're looking for.  

Click  exchanges    

List yourself as a trainer and events on our website
Click  here to add yourself or your company as a trainer on our website
Are you up to date?
DM-32 - Firmware Build 2.3 v.62 New Update.  ...for more information

GaugeRemote - v.1.3.0  New Update. Improved better WiFi connection. 
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Virtual Gauge - v.1.90 New Update.  ...for more information

FanTestic - v.   New Update. Includes new Retrotec fan models and duct testing standards.  ...for more  information