Hey Ed, our code requires a supply grille in every room even if Manual J® calls for zero CFM. Any advice?
In this edition of “Hey Ed,” Ed discusses supply grill regulations.
Hey Ed, our code requires a supply grille in every room, even if Manual J® calls for zero CFM. Any advice? That is a question that has come up quite a bit as of late. And when I look in any of our manuals, I cannot find any specific reference to what is or isn’t required. What we have done in the new manual D that’s coming out is we have listed that if there is a 300 BTU requirement or less, no supply outlet is required. And that’s the way I see it.
Manager of HVAC Design Education at ACCA
Ed Janowiak is ACCA's Manager of HVAC Design Education and can be reached at ed.janowiak@acca.org or 703-824-8878.
Latest posts by Ed Janowiak (see all)
- Hey Ed, is zeroing your gauges calibrating them? - March 26, 2025
- Manual D® or duct design: How are you calculating airways? - March 19, 2025
- Hey Ed, what does our coil temperature (suction saturation temperature) look like? - March 19, 2025
Ed Janowiak is the Manager of HVAC Design Education at ACCA.
Have a question you'd like to see Ed answer?
Send it on over by using the form below.
Posted In: Hey Ed, Technical Tips
