[Equest-users] Humidifier
Rob Hudson
rdh4176 at gmail.com
Mon May 23 13:21:02 PDT 2011
After more putzing around, i have notices that if you set the OA to 0 then
you cannot humidify, so i set it to 1 cfm, and now it works...
Cooling coil is still bothering me though.
On Mon, May 23, 2011 at 3:30 PM, Rob Hudson <rdh4176 at gmail.com> wrote:
> I have an Equipment Rack Room (ERR) that has a chilled water/hot water
> single zone system, with de-humidification and humidification. When i try
> to model this, i enter in the appropriate inputs into the system and zone
> levels, and then for humidification i enter in my design parameters, 60% and
> 35% with electric cansister humidifier type.
>
> My problems begin now, when i run the model the humidifier is never turning
> on throughout the year, and dehumidification seems to work just fine. Also
> the program is currently sizing my cooling coil to a size much larger than
> previously determined by hand.
>
> More notes: the Rack load is 90kW with minimal other loads (lights and
> people). 99% sensible heat ratio. Using this i need about 30 tons of
> cooling, which translates to a coil that should be slightly larger than
> that, due to de/humidification. my thermastat is set to 72deg and design
> temperature is also 72 deg.
>
> This has been alluding me for about 2 hours, so any help is appreciated.
>
> --
> Rob Hudson
>
--
Rob Hudson
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