Yego Zamula had a set of goals and Vasili Podkolzin also scored for Russia (0-1-0), last year's bronze medallists.
Yaroslav Askarov allowed four goals in two durations of work to take the loss for the Russians. Amir Miftakhov came in to play the third.
Boston Bruins possibility Jakub Lauko of the Czech Republic injured his knee in the opening minute of the game and didn't return.
Later, Canada plays its first Group B video game versus the United States, and Finland faces Sweden in a Group A tilt.
Swiss topple Kazakhstan
Matthew Verboon scored two times while Gian-Marco Wetter potted the eventual winner midway through the 3rd as Switzerland toppled Kazakhstan.
Jeremi Gerber and Joel Salzberger also scored for the Swiss (1-0-0) in the Group A matchup.
Maxim Musorov struck twice and Ruslan Demin included the other for Kazakhstan (0-1-0).