Talks between Consolidated Edison Inc. and its largest union are to resume Monday as another heat wave hits New York City.

The Con Ed workers were locked out on June 30 after their contract expired and negotiations over a new one failed. About 5,000 managers are keeping electricity going for 3.2 million customers in New York City and Westchester County

Neither Con Ed nor the Utility Workers Union of America Local 1-2 has indicated any real progress.

The National Weather Service forecasts high temperatures in the 90s for the next three days.

Going into the third week of negotiations, there have been no major outages.

Union spokesman John Melia says the company “bowed to public pressure” in reinstating health insurance for the 8,500 locked-out workers. Workers are covered for July, retroactively.