Bryant Legacy Line Series Manual page 20

APPLICATION DATA (cont)
Low ambient applications
The optional Bryant economizer can adequately cool your
space by bringing in fresh, cool outside air. In fact, when so
equipped, an accessory low ambient kit may not be
necessary. In low ambient conditions, unless the outdoor air is
excessively humid or contaminated, economizer-based "free
cooling" is the preferred less costly and energy conscious
method.
In low ambient applications where outside air might not be
desired (such as contaminated or excessively humid outdoor
environments), your Bryant rooftop can operate at ambient
temperatures down to -20°F (-29°C) using the recommended
accessory Motormaster ® low ambient controller.
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