http://www.retrotec.com/SupportCenter.aspx Browse our collection of articles regarding air leakage testing protocol and commonly encountered blower door malfunctions, pose a question about our door fan systems to the online community in our forum, or submit a tech support request directly to us via the website. You'll find everything you need here, from instructions on how to use your smoke puffers and air current testers, to how to configure your DM-2 digital manometer, and how to set up your duct leakage testing system. What to do when your Standard 87 inch cloth door panel is too small for a large doorway. http://www.retrotec.com/SupportCenter/tabid/64/post/tech-faq-small-x-panel-to-fit-cloth-frame-into-larger-doors/Default.aspx Wed, 15 Feb 2012 14:00 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/tech-faq-small-x-panel-to-fit-cloth-frame-into-larger-doors/Default.aspx A great feature of FanTestic is its ability to show users a summary table of their results. However, many testers don’t know that you can also use FanTestic to combine 2 tests in the same direction into a single table. http://www.retrotec.com/SupportCenter/tabid/64/post/tech-faq-fantestic-support-getting-before-and-after-results-in-a-single-summary-table/Default.aspx Wed, 15 Feb 2012 13:59 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/tech-faq-fantestic-support-getting-before-and-after-results-in-a-single-summary-table/Default.aspx Gusting winds – definitely not ideal testing conditions if you want repeatable, accurate results. If you find your before and after air leakage tests don’t make sense, strong baseline pressures are a likely cause. http://www.retrotec.com/SupportCenter/tabid/64/post/4-ways-to-defeat-wind-gusts-and-bias-pressures/Default.aspx Tue, 17 Jan 2012 11:26 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/4-ways-to-defeat-wind-gusts-and-bias-pressures/Default.aspx How to tell if you are using the wrong flow ring or range. Also, an overview of how to properly use flow rings and the range setting. http://www.retrotec.com/SupportCenter/tabid/64/post/video-wrong-flow-ring-or-range/Default.aspx Tue, 17 Jan 2012 11:14 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/video-wrong-flow-ring-or-range/Default.aspx How to connect your gauge properly with the right tubing connections. http://www.retrotec.com/SupportCenter/tabid/64/post/video-correct-tubing-connections/Default.aspx Tue, 17 Jan 2012 11:08 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/video-correct-tubing-connections/Default.aspx Video demonstration - what to do when your flow is to low. http://www.retrotec.com/SupportCenter/tabid/64/post/flow-too-low/Default.aspx Tue, 13 Dec 2011 13:19 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/flow-too-low/Default.aspx All motors are tested at Retrotec facilities for 1.5 hours under full current and stress. The motors which shut off due to excess heat are rejected, and sent back to the beginning of the production line. Some users, however, may still encounter problems in the field. Below are some points that may be followed to remedy a specific problem. http://www.retrotec.com/SupportCenter/tabid/64/post/motors-overheat-and-shutoff/Default.aspx Wed, 7 Dec 2011 15:40 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/motors-overheat-and-shutoff/Default.aspx The 3300 series fan's power supply will stop working if either of the following conditions occurs: 1. The internal 25 Amp circuit breaker is triggered 2. The internal relay comes loose If either situation occurs, http://www.retrotec.com/SupportCenter/tabid/64/post/3300-fan-wont-start/Default.aspx Wed, 7 Dec 2011 15:28 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/3300-fan-wont-start/Default.aspx Retrotec 3300 series variable-frequency fans require 100-280 VAC 50/60 Hz power in order to operate reliably. Voltage drops due to line losses and fluctuations in AC power can be significant. The fans will not work at line voltages of less than 95 VAC. If the system will: http://www.retrotec.com/SupportCenter/tabid/64/post/high-power-fan-will-not-control-smoothly/Default.aspx Wed, 7 Dec 2011 15:06 -0800 http://www.retrotec.com/SupportCenter/tabid/64/post/high-power-fan-will-not-control-smoothly/Default.aspx