Oversized and extreme high humidity

[wdshea]

How does a colder coil slow the cooling process?

[teddy bear]

How does a colder coil slow the cooling process?

Colder coils reduce the btus per of cooling. Compressors pump less refrigerant at lower suction pressures.


Regards TB

[B1978]

I have witnessed humidity problems on fitness centers, lacking fresh air. You may be able to run one compressor fine without oil return problems.
Contact the manufacturer to verify. Also, have the manufacturer engineer a way to downsize the tonnage..
I would be concerned long term for that unit if it is that oversized.

[teddy bear]

I have witnessed humidity problems on fitness centers, lacking fresh air. You may be able to run one compressor fine without oil return problems.
Contact the manufacturer to verify. Also, have the manufacturer engineer a way to downsize the tonnage..
I would be concerned long term for that unit if it is that oversized.

There are many days where there is low/no cooling loads yet the outdoor dew points are above the acceptable indoor dew points. Plus the moistue the occupants add to the total moisture that must be removed. Over-cooling lowers the indoor temp which in turn increases the amount of moisture that must be removed to maintain low %RH. Supplemental dehumidification by high efficiency dehumidifier like the Ultra-Aire/Santa Fe/Hi-E Dry/Quest are a long term solution to provide ideal temp/%RH.
Regards TB

[B1978]

Could he add a ton of outside air to increase his load? Guess it depends on his region, whether he's in a humid area or not.

[ncboston]

If this is a new jail, are you at capacity yet? I would assume the engineers sized the unit based on maximum occupant capacity.

[Blows_Sucks_Heats_Cools]

The space needs to have positive pressure, but not too much. Make sure you have some make up air (approx 10%).

You need to run on 1 stage, cycling 2nd stage as needed. If you can control 2 stages of blower speed to go with your 2 stages of compressors, that would be ideal.

[Chris_Worthington]

The space needs to have positive pressure, but not too much. Make sure you have some make up air (approx 10%).

You need to run on 1 stage, cycling 2nd stage as needed. If you can control 2 stages of blower speed to go with your 2 stages of compressors, that would be ideal.

Codes for Jails/Prisons are not going to allow you to cut back on outside air, they want 100% ODA and the air changes to boot.

[teddy bear]

The space needs to have positive pressure, but not too much. Make sure you have some make up air (approx 10%).

You need to run on 1 stage, cycling 2nd stage as needed. If you can control 2 stages of blower speed to go with your 2 stages of compressors, that would be ideal.

Hekp us understand how we are going to control %RH during 60-70^F dew point outside air during low/no cooling condition? Like we need latent cooling with much sensible cooling.
Regards TB