He said crews evacuated 115 patients from the centre and are in the process of evacuating another 18 patients from a nearby behavioural facility next door.
"(We) quickly identified some issues inside the facility with fire rescue and immediately evacuated the building", Katz said.
Further north in Daytona Beach, police said one person died and three others were being treated at a hospital Wednesday for carbon monoxide poisoning from an electric generator.
Irma is expected to sap demand for fuel for a time, Goldman Sachs analysts said in a note on Monday, but they cautioned that supply could remain strained because of refining capacity offline after Hurricane Harvey, which hit Texas two weeks ago. "I told the man (who installed the shower), I told him, 'If the hurricane takes the rest of my house, I want this shower sticking up out of that slab like the last tooth in the mouth of a bum".
Irma earlier left a trail of destruction in the Caribbean, where almost 40 people were killed.
"We don't know", said Franco.
Kitchen employee Jean Lindor said the nursing home's generator was sufficient to supply power for cooking, but the facility had no air conditioning after the storm struck. For example, the website said 25.9 percent of "short stay" residents were hospitalized again after admission to the nursing home, above the state average of 23 percent and the national average of 21.1 percent.
"Although the details of these reported deaths are still under investigation, this situation is unfathomable", Scott tweeted. To the east, the Greater Miami Jewish Federation has been checking on elderly residents in their homes and felt a greater sense of urgency after the deaths.
The overall death toll from Irma climbed to 81 on Wednesday, with several hard-hit Caribbean islands accounting for more than half the fatalities as officials continue to assess the damage inflicted by the second major hurricane to strike the USA mainland this year. It's unclear if the nursing home had a generator or not.
Count mayor Barbara Sharief has criticized the facility for being slow to react when its residents' health was in peril.
The bridge that crosses the river is just north of Gainesville, the state capital and home to the University of Florida. In addition, there are more than 3,100 assisted living facilities with more than 99,000 beds.
The association said it was working with officials to prioritise "the locations with the greatest need". Workers reportedly tried to keep residents cool with cold drinks, fans, ice and cold towels as temperatures reached into the 80s.
Pembroke Pines police spokeswoman Amanda Conwell tells the Miami Herald that officers have been on the scene because some of the 15,000 residents at Century Village are vulnerable and "we are concerned about their welfare". CEO Jacob Solomon said the group encouraged people to evacuate before the storm if they could, but now they're focused on helping them in their homes.
Utility workers fix power lines in Marathon, Florida, after Hurricane Irma.
Cape Coral Shores kept 20 elderly patients during the storm because local emergency shelters had been evacuated as Irma bore down on the coast. Owner Ralph Marrinson said all five of his Florida facilities lost electricity after Irma.
In the Florida Keys, where Irma made her first landfall, destruction was widespread.