Supporters of Greenbelt's Cultural Arts Center, hoping to raise funds to complete renovation of the city's Utopia Theater, won cautious approval for a downtown flea market from the mayor and City Council.

On a trial basis, the council last week gave the group permission to rent 15 tables to vendors on a grassy area at Center Mall, according to City Clerk Gudrun Mills.

Mayor Ray Castaldi said the flea markets might pose parking problems at the shopping center and might take business away from stores there.

The council agreed to give the arts center group monthly permits, while monitoring the flea market's effect on the shopping center. The first flea market is scheduled for May 29.

"We'll just have to see how it works out," Mills said.

Partially refurbished, the Utopia theater, located in the mall, is used for films and performances sponsored by the arts center.

In other action, the council approved a contract with the Associated Environmental Corp. to install a 10-ton York heat pump and three smaller units in the Greenbelt Youth Center. The council agreed last week to pay the firm $10,618 for the job.

Two other bids also were approved by the council. One was for a two-way radio system for the city's public works department, awarded to Motorola Communications and Electronics Inc. of Hanover for $9,791. The B. Frank Joy Co. of Bladensburg received a contract for miscellaneous sidewalk and street repairs between July and October.

The council also reappointed Nancy Neupert, Ronald Ott, Wayne Spong and John Veil to the Parks and Recreation Advisory Board. And at a recent banquet for city employes, Joe Aulisio, the city's mechanic, was named Outstanding Employe of the Year.