Install Instructions

Optional Lifebreath Ventilation Control - Part #99-BC03
Key Features:
 Continuous LOW fan speed operation
 Electronic Dehumidistat
 3 modes of operation:
• Ventilation
• Recirculation
• 20/40 mode
 Compatible with 99-DET02 Wireless Timers
 Slim-line design
 Connect to 3 wire 20 gauge low voltage wire
BC03 Operating Instructions:
Turning on the Control
Press and release the ON/OFF button . The light above will illuminate and the fan will turn on to LOW speed.
Humidity Control
Your unit will reduce indoor humidity when outdoor humidity levels are lower than indoor humidity levels. This feature is only
effective when the outdoor temperature is below 59˚F (15˚C).
Setting the Dehumidistat
Press and release the Dehumidistat button until the Dehumidistat Light is at the desired setting. After a few seconds the
Dehumidistat light will either flash or be on continuous.
A flashing light indicates the humidity level is higher than the setting and the unit is operating on high speed ventilation. A
continuous light indicates the humidity level is lower than the setting. Refer to the unit's Home Owner’s manual for
instructions on how the Dehumidistat works.
The Dehumidistat will override the current fan speed setting to high fan speed.
The Dehumidistat function can be turned OFF by pressing the button until no Dehumidistat light is on.
Note - Only 1 Dehumidistat should be installed in a system.
Setting 20/40 Mode
To activate 20/40 mode, press and release the Mode button until the "Indicator Light" below 20/40 is illuminated.
20/40 mode is a repeating cycle. The fan will run at LOW speed for 20 minutes, then turn OFF for 40 minutes.
Some units are equipped to Recirculate air in your home during the 40 minute cycle with no Ventilation. The control will
automatically detect this feature and Recirculate air during the 40 minute cycle at LOW fan speed.
Recirculation Mode
Some units are equipped to Recirculate the air in your home without Ventilating.
To activate Recirculation mode, press and release the Mode button until the Recirculation "Indicator Light" is ON.
Recirculation is in LOW fan Speed.
Humidity
Setting
20/40 Mode
Indicator
Recirculation
Mode Indicator
LOW Fan Speed
Indicator Light
ON/OFF Button
Mode Button
Dehumidistat
Button
9