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Related Manuals for TEC Minneapolis Blower Door 3
Summary of Contents for TEC Minneapolis Blower Door 3
- Page 1 Minneapolis Blower Door™ Operation Manual Model 3 and Model 4 Systems...
- Page 3 Minneapolis Blower Door™ Operation Manual Model 3 and Model 4 Systems The Energy Conservatory 2801 21st Ave. S., Suite 160 Minneapolis, MN 55407 (612) 827-1117 (Ph) (612) 827-1051 (Fax) www.energyconservatory.com email: info@energyconservatory.com Minneapolis Blower Door, TECTITE, Duct Mask and Automated Performance Testing (APT) System are trademarks of The Energy Conservatory, Inc.
- Page 5 Manual Edition: August 2012. © 2012 by The Energy Conservatory. All rights reserved. ENERGY CONSERVATORY WARRANTY EXPRESS LIMITED WARRANTY: Seller warrants that this product, under normal use and service as described in the operator’s manual, shall be free from defects in workmanship and material for a period of 24 months, or such shorter length of time as may be specified in the operator’s manual, from the date of shipment to the Customer.
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Page 7: Table Of Contents
Table of Contents SAFETY INFORMATION CHAPTER 1 INTRODUCTION 1.1 What is a Blower Door? 1.2 Air Leakage Basics 1.2.a Stack Effect: 1.2.b Wind Pressure: 1.2.c Point Source Exhaust or Supply Devices: 1.2.d Duct Leakage to the Outside: 1.2.e Door Closure Coupled with Forced Air Duct Systems: 1.3 Common Air Leakage Sites CHAPTER 2 SYSTEM COMPONENTS... - Page 8 CHAPTER 5 CONDUCTING A BLOWER DOOR DEPRESSURIZATION TEST 5.1 Choosing a Test Procedure 5.2 Depressurization Test Procedures Using the DG-700 5.3 Depressurization Test Procedures Using the DG-3 5.4 Using the Can’t Reach 50 Factors (One-Point Tests) 5.4.a Potential Errors In One-Point CFM50 Estimate from Using the CRF Factors: 5.5 Unable to Reach a Target Building Pressure During a Multi-Point Test? 5.6 Testing in Windy Weather 5.7 Before Leaving the Building...
- Page 9 9.3.b Flow Hood Method: (Requires use of calibrated flow capture hood) 9.4 Unconditioned Spaces Containing Ductwork 9.5 Testing for Pressure Imbalances Caused By Forced Air System Flows 9.5.a Dominant Duct Leak Test: 9.5.b Master Suite Door Closure: 9.5.c All Interior Doors Closed: 9.5.d Room to Room Pressures: 9.6 Other Important Test Procedures 9.6 a Total System Air Flow:...
- Page 10 APPENDIX C USING FLOW RINGS C, D AND E C.1 Using Ring C C.1.a Installation: C.1.b Calibration Parameters for Ring C (Updated January 2007): C.2 Using Rings D and E C.2.a Installation: C.2.b Measuring Fan Flow with Rings D and E: C.2.c Calibration Parameters for Rings D and E (Updated January 2007): APPENDIX D SAMPLE TEST FORMS...
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Page 11: Safety Information
Safety Information Safety Information The Blower Door fan should only be connected to a properly installed and tested power supply. In case of emergencies, disconnect the power cord from the AC power mains outlet. During installation, use the nearest readily accessible power outlet and keep all objects away from interfering with access to the outlet. -
Page 12: Chapter 1 Introduction
Chapter 1 Introduction Chapter 1 Introduction 1.1 What is a Blower Door? The Blower Door is a diagnostic tool designed to measure the airtightness of buildings and to help locate air leakage sites. Building airtightness measurements are used for a variety of purposes including: •... -
Page 13: Air Leakage Basics
Chapter 1 Introduction A typical Blower Door test will include a series of fan flow measurements at a variety of building pressures ranging from 60 Pascals to 15 Pascals (one Pascal (Pa) equals approximately 0.004 inches of water column). Tests are conducted at these relatively high pressures to mitigate the effects of wind and stack effect pressures on the test results. -
Page 14: Stack Effect
Chapter 1 Introduction 1.2.a Stack Effect: Stack effect is the tendency for warm buoyant air to rise and leak out the top of the building and be replaced by colder outside air entering the bottom of the building (note: when outside air is warmer than inside air, this process is reversed). - Page 15 Chapter 1 Introduction The next most important location of leaks is in the lowest part of the building. The bottom of the building is subject to the largest negative pressures, which induces cold air infiltration. Importantly, if spillage prone natural draft combustion appliances are present, do not seal lower level building leaks unless you have first addressed leaks in the attic or top part of the building.
- Page 16 Chapter 1 Introduction Figure 5: Leak from Attached Porch Figure 6: Common Kneewall Leak Forced air system ductwork can also be a major air leakage site. Even small leaks in ductwork can result in significant air leakage due to the high pressures found in ducts whenever the heating or cooling system is operating.
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Page 17: Chapter 2 System Components
Chapter 2 System Components Chapter 2 System Components This Manual includes operating instructions for the following models of Minneapolis Blower Door: • Model 3/110V System • Model 3/230 System • Model 4/230V System (CE labeled fan and controller) Both the Model 3 and Model 4 Minneapolis Blower Door systems are comprised of three separate components: Blower Door Fan Accessory Case with Test Instrumentation (building... -
Page 18: Determining Fan Flow And Using The Flow Rings
Chapter 2 System Components The main distinguishing feature between the Model 3 and Model 4 fans is the shape of the flow sensor attached to the fan motor. Model 3 fans (both 110V and 230V) use a round white plastic flow sensor, while the Model 4 fan uses a flow sensor manufactured out of stainless steel tubing. -
Page 19: Test Instrumentation (Pressure And Fan Flow Gauges)
Chapter 2 System Components To Install Flow Ring B, place Ring B in the center of Ring A and rotate the 6 fastener clips attached to Ring A so that they rotate over the edge of Ring B and secure it in place. In addition to Flow Rings A and B, the standard Minneapolis Blower Door comes with a solid circular No-Flow Plate to seal off the fan opening. -
Page 20: Automated Performance Testing System
2.2.b Automated Performance Testing System™: The Automated Performance Testing (APT) system performs fully automated Blower Door tests from a user supplied laptop or desktop computer using TEC’s TECTITE software. The TECTITE software allows the user to select among various airtightness testing procedures, including a cruise control option which maintains the building at any user-defined pressure.