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By Naomi Millán March 27, 2018 -
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Carrier WeatherExpert commercial packaged rooftop HVAC units with Humidi-MiZer dehumidification system have been recalled because a Humidi-MiZer fan can fail to shut off when a connected smoke detector is tripped. This poses a fire hazard. Carrier has received one report of a fan not shutting off during installation testing, according to U.S. Consumer Product Safety Commission recall 18-731. No injuries have been reported. About 530 Carrier WeatherExpert 6-23 ton, 48/50 series, light commercial rooftop HVAC units with factory-installed dehumidification are affected by this recall. The model numbers are 48/50LC07-26 with an A in the 6th digit and a 0 (zero) in the 14th digit of the model number. The serial numbers are 1214P to 3317P. They were sold between March 2014 and September 2017. Facility managers affected by this recall are directed to contact their Carrier dealer for a free repair, which includes installing a new electronic control board. Carrier can be reached at 844-864-8748 or online at www.carrier.com. This Quick Read was submitted by Naomi Millán, senior editor, Building Operating Management. Go here for other recent recall notices.