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Forum discussion

CS-2009 EAp2:Minimum Energy Performance

Tenants HVAC System Type

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Amgad Khattab
LEED Product Manager
Raya Smart Buildings
LEEDuser Basic Member
17 thumbs up

We are modeling a Core & Shell office building where the HVAC system is in the tenant scope. we are only delivering chilled water and outdoor air to the tenant areas. We are specifying fan coil units system for tenant areas in the tenant design guidelines. My question is should we model HVAC type in the proposed design building as fan coil units or we should model it as the same type of the baseline building?

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Wed, 10/19/2011 - 13:52

You can model the FCUs if there is a provision in the lease agreement which requires the tenant to connect to the CW system. The tenant guidelines are typically suggestions and are not mandatory. If not in the lease agreement, then the tenanat spaces would be modeled the same as the baseline.

Fri, 02/24/2012 - 12:58

I'm working in a project where neither heating nor cooling will be designed for the tenants, and the system will be simulated as the same as the baseline mode. My doubt is, will the tenants have to comply with the ASHRAE mandatories if they install the HVAC system (this need to be o the lease agreement)?
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Gurneet Singh
Director
Environmental Design Solutions Pvt. Ltd.
LEEDuser Expert
13 thumbs up

Wed, 10/24/2018 - 05:19

Hi Carolina! What did you hear from USGBC on this? Well, I would say the mandatories have to be met, but does USGBC allow mandating critical items like fresh air equipment (the AHUs bringing in fresh air and not necessarily ducting) and mechanical conditioning equipment (say VRFs or even chillers) in tenant lease agreements? We had a project adamant on putting glazing retrofit in tenant lease agreement as well!      
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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Wed, 10/24/2018 - 14:44

If you want to claim energy savings for work that is to be performed by the tenants then it must be in the lease agreement. Otherwise it must be modeled the same as the baseline.

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