Apprentices are governed by the local union agreement, and they will perform all pneumatic control systems and mechanical equipment service and all other work coming under this Agreement assigned by the Employer, limited only by their capabilities as determined by the Employer, at the respective apprentice rate of pay, and shall perform all assigned work under the direction of the Employer. Routine service and inspections, regardless of size or location of the HVAC mechanical equipment being inspected or serviced, where this work is done as a periodic and routine procedure by the Employer, such as: Change and service filters.