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Home > Retrotec Blower Door Systems
Retrotec DU200 DU 200 DuctTester Duct Pressure Leakage Testing
Retrotec DU200 DuctTester Duct Pressure Leakage Testing
 
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Retrotec DU200 DU 200 DuctTester (DM-32 Guage included) Duct Pressure Leakage Testing

The Retrotec DU200 DucTester is specially designed to test air ducts, tight enclosures, and has over 3x the power needed for testing even the leakiest duct systems to current industry standards.

The DU200 DucTester duct leakage testing equipment has a centrifugal backward curved impeller which is exactly what you need to grade high test pressure & the innovative elliptical nozzle is highly stable in each of the depressurization and pressurization test directions, and results in equal accuracy in either direction. The DU200's 0.25 HP fan is made to use in conjunction with the retrotec DM-32 digital fan gauge, which controls the fan's desired Set Speed or Set Pressure. However, the DU200 can also be controlled with a manual speed control, that plugs directly into the DU200 Control port, so the gauge can be used to perform other tests as the fan remains in operation. The DU200 Fan features a recently upgraded Fan Top which has a built in on/off switch, speed control, & is able to utilize multiple fans simultaneously, all controlled by one gauge. Revised on Nov. 2010, the DU200 features a manual speed control, on/off switch, & dual Ethernet Control Ports so you can daisy chain speed controls.
 
Is Duct Leakage Important?
 
Duct leakage is estimated to account for up to 25% of the total energy loss in a typical house. In many instances, it has a greater impact on energy use than air leaks anywhere else in the house or building envelope. Small commercial buildings often find that duct leakage is the single largest cause of performance problems.
 
Problems from duct leakage
  • Leaky return ducts pull unconditioned air into the duct system, and reduce the efficiency and capacity of the HVAC system.
  • Conditioned (and expensive) air is lost directly to the outside, a crawlspace, or an attic.
  • If moist air is pulled into return leaks, the dehumidification system is overwhelmed and the building will be uncomfortable.
  • An inefficient duct system will result in people seeking alternative sources of heating or cooling, including increased use of electric heaters and fans.
  • Insulation fibers, mold spores, dangerous gases, dust, as well as other contaminants are drawn into the air duct system & are blasted into air conditioned spaces.

Retrotec Duct Leakage Testing Equipment is used all around the world to measure air leakage in ductwork systems, tight houses, and set the industry standard for duct test equipment. Retrotec duct pressure test equipment is manufactured & calibrated against the NIST traceable devices standard.
 
The Retrotec DucTester is specifically designed for measuring residential air duct leakage. The DucTester is used for duct leakage locating and for measuring the results of air duct sealing. The retrotec DU200 DucTester can verify duct leakage rates for building codes such as the California Title 24, compliance testing for Texas, Florida, Washington State, & Energy Star compliance all around the country.
 
DU200 Operation
  • Depressurize or pressurize duct systems (with air handler shut off) from your main return grille (blower access opening).
  • Tape shut the remaining register openings.
  • Measure duct pressure with static probes inside supply ducts.
  • No computer required.
  • Register taping, setup, & producing results takes under 20 min. in most residential homes.
  • The DU200 DucTester duct leakage testing equipment can be utilized with a blower doors for neutralizing duct leakage to the indoors so that you only measure outdoor duct leakage.
DU200 Includes
  • DucTester DU200 Unit
  • DM-32 dual channel digital manometer
  • Flex duct (12 feet long) with flanges to mount onto return register
DU200 Specifications
Fan Flow
CFM Liters / s
m3 / h
Maximum Flow (Free Air): 725
342 1232
Maximum Flow (at 25 Pa) with Flex attached: 700 330 1189
Dimensions of Fan Unit: 13 × 11 × 13.25 inches (33cm × 27.9cm × 33.7cm)
Flex Duct Dimensions:
10 inches (25.4 centimeters) diameter. 15 inches (38.1 centimeters) to 10 feet (3.05 meters) long
Dimensions of Carrying Case: 25" x 14 " x 15 " (63.5 x 35.6 x 38.1 cm)
Motor Description: backward curved EBM impeller
120 or 240 Volt Unitss Available
Controls: Manual dial on-boardautomatic control, Manual Speed Control (optional), FanTestic software

DM32 Specifications
Result

Available Units

Example

Pressure

Pa, in WC, psf (lb/sq ft)

53.5 Pa

Flow

CFM, L/s, cu m/s, cu m/h

253.5  CFM

Flow per Area

CFM/sq ft, CFM/100 sq ft, CFM/1000 sq ft,
(L/s)/sq m, (cu m/h)/sq m

.025 CFM/100 sq ft@75.0Pa
Leakage Area
EqLA, EqLA10 (Canadian),
EfLA, EfLA4 (US): sq in, sq ft, sq cm

12.8 EQLA sq in @10.0Pa

Leakage Area per area

/100 sq ft, /sq m, /sq ft

1.15 EQLA10 sq in/sq ft

Air changes per hour

According to volume entered: /hr

2.7 ACH

Weight

12 ounces / 340 grams

Dimensions
5.70 x 3.73 x 1.4 inches
14.5 × 9.5 × 3.5 centimeters
Power
USB to AC adaptor
4200 mAh internal rechargeable battery
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