Application Guide
Broan Automatic Make-Up Air Damper Product Guide – 04-17-13    10 
6.1 Applications with the LinkLogic™ Model (SMD* model) 
  SmartSense® Whole-House Ventilation System with Damper 
Make-up
Air Damper
Control Module
Broan
Smart-Sense
Ventilation Fan
Make-up Air Damper
SMD* installed in air return
duct of forced-air system
(normally closed)
Transformer
-  The Damper works in sync with Broan’s SmartSense® whole-house ventilation 
system. When any one or more of the SmartSense® exhaust fans turns on, the 
Damper fully opens to allow fresh outdoor air into the home. When no SmartSense® 
fans are operating, the Damper closes. SmartSense® utilizes LinkLogic™, so 
communications between the fans and the Damper occurs over the home’s power 
lines, and no additional control wiring between the Damper and fans is necessary. 
6.2 Applications with the Direct-Wired Model (MD*T) model) 
  Compatible BEST, NuTone, or Broan Range Hood with Damper 
Transformer
Broan
Range Hood
Make-up Air Damper
MD*T installed in air return
duct of forced-air system
(normally closed)
‐  The Damper fully opens or closes based on a direct signal from a compatible 
BEST or Broan range hood which is “MD-capable.” This signal is triggered by 
the operation of the range hood, which is sent through a hard wired connection 
between the two devices using a Broan-supplied transformer. Only those BEST, 
NuTone, or Broan range hoods which are MD-capable may be used for this 
application. 










