I seem to have stuck in my head that the National Electrical Code requires all commercial buildings to have a minimum of 20 amp breakers...BACK STORY: the job I am on (15 story BLDG in Seattle) has heat pumps (hydronic type) with a MAX over current protection of 15 amps of course they wired them with the cheapest disco possible being a snap switch, hence the 15 amp breaker question, and the simplest fix they want to do.
