[SML] Dimming Cooling

[Paul Marsland]

Take max dimmer capacity (mdC)
derate to 80%
dimmer manufacturer will tell you efficiency (97% for ETC Sensors), so
3% is lost to heat (EtoH)
so  = watts lost to heat (wl2H)
convert wl2H to BTU

mdC * 80% * 3% * 3.412 = BTU/hr

And install a thermostat.  :)  We have dimmer rooms with and without,
for some reason...
Paul Marsland
+1 (919) 239-0551


On Thu, Aug 27, 2015 at 10:14 AM, Stephen Litterst via Stagecraft
<stagecraft at theatrical.net> wrote:
> Question for the consultants and dimming specialists out there.  What BTU
> figure do you use for dimming racks to calculate the HVAC needs for the
> room?
>
> The AC in my dimmer room died and I want to make sure to pass along the
> right number to the HVAC folks for replacing it.  (And for myself to get
> something in there to limp along until the replacement is done.)
>
> Thanks!
>
> Steve L.
> --
> Stephen Litterst            Technical Operations Supervisor
> litterst at udel.edu           Mitchell Hall
> 302/831-0601                University of Delaware
>
>
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