Retrotec DucTester 341 User Manual
Retrotec Measuring instruments
QG341
Page 1 of 4
rev-2014-07-31
341/342 DucTester QuickGuide
DM32 gauge
Gauge case
Flange
DucTester
Flex duct
www.retrotec.com Support: (888)330-1345 International: +1(360)738-9835 Made in Everson, WA, USA
Grill Mask
System Case
Range
Plugs
Included
Range Plugs
Step 1:
Prepare ducts and house
□
Turn off air-handlers or adjust temperature so the
unit will not turn on.
□
Seal all supply and return grills/registers, including
any exterior air inlets, with Grill Mask, plugs, covers,
or tape.
Refer to your “Gauge Quick Guide” and become completely
familiar with its operation before performing a test.
Check boxes (
□
) for each step.
See: “Residential Duct Testing Manual” for additional
information. Download it from: www.retrotec.com
Step 1:
Prepare ducts and house (cont’d)
□
Remove all air filters
□
Open all interior doors
leading to rooms
containing a supply or return
register.
□
Open an exterior door or
window.