The 440x includes even more improvements from the former model 400.
Commercial duct testing equipment.
Duct testing must be performed by an independant third party state certified hers raters and involves pressuring the duct system to a specified level and verifying that the ducts leak at a rate no greater than 6 of the total airflow.
This applies to residential and commercial applications.
Measure duct leakage in commercial systems up to 295 cfm at 8 inches water column in wc with the first truly lightweight 20 lb handheld commercial ductester.
The duct system is then placed under high pressure and the airflow through the fan is measured.
We are certified for residential commercial duct testing in both the new construction and alteration categories.
Allowable leakage based on percentage on system cfm.
Retrotec has been manufacturing blower door and duct testing equipment for over 30 years.
We are a calcerts and nebb certified hers air balancing company serving the san gabriel valley los angeles county orange county and san bernardino county.
The methods of measurement is a depth gauge comb which is scraped along the duct surface and for example a measured depth of 0 078 inches indicates the need to remove the deposition risk.
Lightweight handheld commercial duct tester.
Duct testing is now mandatory for all new construction and when hvac equipment is changed and the ducts are altered.
The world s leading manufacturer of building diagnostic tools.
Blower door and duct testing.
A new foot design allows for a secure sturdy base.
With 1700 watts of power available any comparable commercial duct tester will weigh 120 lb or more.
Allowable leakage based on smacna leakage class.
Commercial duct pressurization testing during the construction process when the duct is accessible before the grilles and equipment is installed each intentional opening in the duct system is sealed air tight with plastic and tape.
Duct leakage testing return system.
It s designed to be simple to use accurate and extremely convenient.
A complete game changer.
We offer prompt professional and knowledgeable service.
The fastest and most convenient duct air leakage tester in the industry kanomax has developed the most advanced duct air leakage tester dalt for commercial duct systems.
While the technology has been around for many years it is still not yet commonplace so there is great opportunity for contractors who want to add this service to their capabilities.
Allowable leakage based on dw 143 duct pressure class.
A new foot design allows for a secure sturdy base.
Duct test sheets calculate allowable leakage duct surface area and more oriflow duct leakage test sheet.
Air leakage in a home building or facility can increase heating and cooling costs dramatically and cause problems with comfort moisture and health.
Blower door and duct testing equipment are designed to identify air leakage in a home building or facility.
