
Air Distribution Products: HHE/AJD
AirVent family →Multiple cones riding one central carrier give this diffuser a trick no fixed face has: slide the cone carrier and the pattern swings from horizontal (cooling) to vertical (heating), matching the season through the face. One terminal, two discharge modes, zero ceiling work.

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Cooling wants horizontal discharge along the ceiling; heating wants the jet aimed down into the zone. Sliding the cone carrier flips between the two through the face: the diffuser changes season, not the ceiling.
Yes: the carrier moves from below with a standard rod or hand turn, reachable from floor level on most ceiling heights.
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