A labor union has filed a petition to form what organizers said would be the first bargaining unit at the Solomon R. Guggenheim Museum in Manhattan.

The petition was filed with the National Labor Relations Board last week by Local 30 of the International Union of Operating Engineers, which is seeking to represent about 90 art installers and facilities workers at the museum.

“We respect the right of our employees to decide whether they wish to be represented by a union,” the Guggenheim said in a statement. “This matter is now pending with the National Labor Relations Board.”

The union filed its petition on behalf of about 10 full time engineers and maintenance mechanics who operate the Guggenheim’s heating and air conditioning systems and about 80 art installers including carpenters, framers, multimedia technicians, art handlers and others who set up and dismantle shows, said Andres Puerta, the local’s director of special projects.