How to Measure Sensible vs. Latent Capacity for AC Equipment
Looking at the latent vs. sensible capacity for air conditioning equipment, the basics are well covered but the specifics are a little confusing:
If an AC unit is rated 80% sensible and 20% latent, what happens when it’s operating in a dry environment? Does the sensible load increase beyond 80%? If so, does the efficiency (SEER rating) also increase?
I’m trying to understand how this works. I know units with higher SEER ratings generally operate with higher coil temperatures and lower latent capacity to increase efficiency. There must be a specific set of operating conditions this is tested in, but I cannot find this information.
Dehumidifiers are rated using 80F and 60% RH (portable units at 65F and 60% RH) test conditions, for example.
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