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100 % OA unit humidity control CAV box heater
Hi All, I'm involve in a Hospital design where I have this scenario I never have done before. 10 isolation rooms being serve for a dedicated AHU. All air supplied into the rooms must be exhausted out of building. Min of 12 ACH. Negative Pressure to the adjacent area. (ASHRAE 170). Since all...- ml1367
- Thread
- Replies: 5
- Forum: HVAC/R engineering
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ASHRAE 170.-ISOLATION ROOM-QUESTION.
Thanks DRWeig. I'm 100 % agreed with you. But I'm still confused. If all air must be exhausted, then that room have to be a 100 % fresh air...It dosen't make sense to mention the min 2 ach outdoor... For example ..if I have a dedicated AHU serving just one isolated room...that unit has to be...- ml1367
- Post #3
- Forum: HVAC/R engineering
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ASHRAE 170.-ISOLATION ROOM-QUESTION.
Hi, I've a question about ASHRAE 170.(table 7-1 design Parameter).When it say: "All room air exhausted directly to outdoor" and at the same time say "Minimum outdoor ach"..my doubt is, if they are establishing a "min outdoor ach". Dose it means that return air is allowed. For example...- ml1367
- Thread
- Replies: 6
- Forum: HVAC/R engineering
