Retrotec DucTester 200 Series Residential Applications - Manual (Page 13)

Page 13 of 91
©Retrotec Inc. 2015
Figure 7: Flex Duct for duct testing system with Flange and strap.
1.4 Additional included duct testing equipment
In addition to the calibrated fan and digital dual-channel pressure gauge, a Retrotec DucTester system
includes a few additional items.
1.4.1. Grill Mask for sealing registers
Grill Mask is used to seal over registers and vents. Grill Mask comes in a 12" wide roll. It is
perforated at 12" intervals to provide easy-to-tear pieces that can seal nearly anything. Be careful
applying Grill Mask to painted surfaces, as paint can be pulled off when removing it after testing.
Additional Grill Mask can be ordered from Retrotec as a single roll or in three roll bundles. A handy
Grill Mask dispenser is also available as an optional accessory.
1.4.2. Umbilical for connecting fan and DM-2 gauge
An umbilical neatly bundles the needed pressure tubes and Control Cable, to prevent the user
from being greeted by a tangled mess of tubes and cables before each test. The standard 20'
long DucTester umbilical includes a yellow, green, and blue pressure tube, as well as the Control
Cable used for the DM-2 to communicate with the fan. For detailed instructions on how to
connect the DucTester fan and the DM-2 gauge using the Umbilical, refer to section 3.6.
1.4.3. Flange for connecting flex to ductwork at register
The Flange is the intermediate part used to secure the Flex Duct onto a return register by using
masking tape or Grill Mask. For instructions on how the Flange is connected, refer to section 3.7.
Figure 8: A roll of
Grill Mask
Figure 9: An
Umbilical
Figure 10: A
Flange