Economizer and ASHRAE 90.1
Economizer and ASHRAE 90.1
(OP)
A commercial space (small store for example) with 8 tones cooling load, if we serve it with 8 tone rooftop unit then we need an economizer as per ASHRAE 90.1,
do we still need economizer if we serve it with two 4 tones rooftop units, each one has its own discharge duct system?
the question is about economizer itself, not the ventilation, if we don't need economizer, a 25% or 50% fresh air inlet will be used
do we still need economizer if we serve it with two 4 tones rooftop units, each one has its own discharge duct system?
the question is about economizer itself, not the ventilation, if we don't need economizer, a 25% or 50% fresh air inlet will be used





RE: Economizer and ASHRAE 90.1
RE: Economizer and ASHRAE 90.1
RE: Economizer and ASHRAE 90.1
knowledge is power
RE: Economizer and ASHRAE 90.1
So what climate zone is it for, what is equipment efficiency, what is occupancy, and is operation expected to exceed 20 hr/wk?