User Guide

17
9. USING THIS UNIT
This unit is designed to provide fresh air to your home while exhausting stale, humid air. By eliminating accumulated pollutants and
humidity, it maintains an optimum air quality and an ideal relative humidity. It is equipped with a recovery core that is designed specifically
to control excess humidity and reduce ventilation costs by recovering the energy from the exhausted air, and using that same energy to
warm the fresh air being supplied. This recovery process is accomplished in such a way that the stale air is never mixed with the fresh air.
When the outdoor temperature is below 23°F, recovery creates frost in the module. To maintain proper operation, the unit is programmed
to defrost the recovery module. The defrost duration and frequency vary according to the outdoor temperature. After defrosting, the unit
returns to the operating mode selected by the user.
9.1 YOUR VENTILATION SYSTEM
9.2 INTEGRATED CONTROL
All units are equipped with an integrated control, located in front of the electrical compartment. Use the push button (2) to control the unit.
The LED (1) will show which mode the unit is in. For more convenience, these units can be controlled using an optionnal wall control.
NOTES:
1. The integrated control must be turned OFF to use an optional main control.
2. If an optional auxiliary control is used, when activated, it overrides the optional main control.
If a problem occurs during the operation of the unit, the integrated control LED (1) will blink. The color of the LED light indicates the
type
of error detected. Contact
your installer.
For wall control problems, refer to the Troubleshooting section in the Main and auxiliary wall controls user guide, available at
www.broan.com
If the problem is still not solved, contact your installer.
Refer to this table to operate the unit using the integrated control.
LED COLOR RESULTS
AMBER UNIT IS ON LOW SPEED
GREEN UNIT IS ON HIGH SPEED
NO LIGHT UNIT IS OFF
9.2.1 BOOT SEQUENCE
The boot sequence of this unit is similar to the boot sequence of a personal computer. Each time the unit is plugged after being unplugged,
or after a power failure, it will perform a booting sequence before starting to operate. During the booting sequence, the integrated control
LED (1) will light up and remain GREEN or AMBER for 3 seconds, and will then shut off; the booting sequence is done.
NOTE: No command will be taken until the unit is fully booted.
9.2.2 SETTING EXTENDED DEFROST
The unit is factory set to normal defrost. In cold regions, it may be necessary to setup extended defrost. To do so, during the first 5 seconds
of the booting sequence, while the integrated control LED is GREEN, press the push button(2) and hold it until the LED turns AMBER
(about 3 seconds).
1
2