The snow-covered surface at Lincoln Financial Field will become a hockey rink in less than two weeks, when the Flyers host the Pittsburgh Penguins in the Stadium Series.

The NHL has the world’s largest mobile refrigeration unit -- a 53-foot trailer-- that’s used to make the ice for the game.

Derek King, the NHL’s senior manager for facilities and hockey operations, said it is the same unit the league used in 2012 when the Flyers hosted the Winter Classic against the Rangers at Citizens Bank Park.

HEATHER KHALIFA / Staff Photographer Crews brought in a 53-foot refrigeration truck to help make enough ice to build the rink for Feb. 23's Stadium Series game.

King said the initial preparations, up until Thursday, will mostly consist of connecting filters and pipes from the northeast entrance of the Linc to the field itself.

Overcast skies would be ideal conditions to manage the ice, but King has other plans in case game day calls for sun.