Rating System

LEED BD+C: New Construction, LEED O+M: Existing Buildings, LEED ID+C: Commercial Interiors, LEED BD+C: Core and Shell, LEED BD+C: Schools

Rating System Version

v3 - LEED 2009, v2 - Schools 2007, v2 - LEED 2.2, v2 - LEED 2.0

Inquiry

We have 108 heat pump PTAC\'s that meet the efficiency requirements of EA prerequisite 2 credit. Due to application requirements, we need to also have 2 vertical heat pump PTAC units. The 2 vertical heat pump PTAC units do not meet the efficiency requirements of EA prerequisite 2 credit. Efficiencies are below: 108 units at EER of 12.8, EA prerequisite 2 requires 11.3 2 units at EER of 9.6, EA prerequisite 2 requires 11.3 The 2 units that don\'t meet the efficiency requirement are similar in capacity to the other 108 units. These units need to be ducted however and they do not offer a ducted unit with the high efficiency option. These units were added to meet building code needs. With only 2 out of 110 total units not meeting efficiency requirements, the average efficiency of the 110 units (all similar in capacity) easily exceeds the minimum requirements. Is it okay to have these 2 units out of 110 total?