Nightclub AC - need help

[TreMiles]

Hi guys need help

I don’t know much about AC

My venue main room is 1200sf

We have 200 ppl capacity

We have put up sixteen 20” industrial fans and
one 5 ton AC unit.

The unit is

Fan coil unit listed: 612T
Model # AP60CX21B
Serial # W1F7868776


Model # YCD60B21SA
Serial # W1M7260223


When putting a digital thermometer at the front of the AC when the thermostat is set to 10deg Celsius = 11.4/5 Dec Celsius reading. - this is to an empty room.

When 200 ppl in the room dancing it’s 30 deg in the room.
Unbearable and sweaty and uncomfortable.

And it’s still spring not hot summer yet
ItÂ’s hot and unacceptable and costing me Business

I had a Ac guy in who said will cool the room no problem and did shitty work and ghosted us.
I got a new AC guy in fixed the coolant and pressure from previous guy and last night was our first night with it. It’s cold at the point it blows out but the room is still 28th Celsius.

I don’t know Much about this and would appritiate your expertise.

I need my venue 16-18 deg Celsius on a 30 deg celicus day.

I’m limited to what we can do.
WeÂ’re a basement underground location
With two 2’x2’ cut outs in the concrete wall to outside which has wood planks covering it.
The ac is taking up one.

How much AC do I need ?
Is this enuf and it’s not working correctly cuz new ac guy thinks so but he didn’t instal it so he doesn’t know either. And neither do I we just want it to be perfect.


Also it was recommended To me to add a Hydroponic air pump Industrial fan
- essentially a hydroponics equipment Grow op fan
- Pulls out so much hot air creates a negative air pressure
I was told by another venue owner this would solve our problem ? Idk thoughts ?


Open to any and all suggestions.

I need to solve this problem asap as
It’s making my Guests uncomfortable and we
Need to solve it as it’s costing me Money.

Using the roof is not an option.

Thank you for your time.

[pecmsg]

What’s your minimum OA?
Fire protection?
Dehumidification !

Hire an Engineer!

[Snapperhead]

11 deg C is pretty good coming out those vents

You probly need another 3 tons

[TreMiles]

Thanks for your reply

I don’t know what OA stands for lol 🤷*♂️
What type of engineer ?

[TreMiles]

Thank you for your reply

[TreMiles]

You probly need another 3 tons

Thank you for your reply

[TreMiles]

What’s your minimum OA?
Fire protection?
Dehumidification !

Hire an Engineer!

Thanks for your reply

I don’t know what OA stands for lol 🤷*♂️
What type of engineer ?

[Snapperhead]

11 deg C is pretty good coming out those vents .... so its doing all it can

[TreMiles]

11 deg C is pretty good coming out those vents .... so its doing all it can

Thank you for your reply

[Restaurant Mech]

200 hot sweaty people could be as high as 400 but per hour per person....
If they really drunk and dancing it can go even higher
And that's just the people in the place. Nevermind the building load, Nevermind the equipment generating heat inside the building.
You probably have half or less of your required cooling capacity. Nevermind fresh air requirements.
Really at minimum you should have either a 2 stage system or better yet separate cooling systems that can be staged.
And they should all have enough airflow for maximum performance.

[pecmsg]

Thanks for your reply

I don’t know what OA stands for lol 🤷*♂️
What type of engineer ?

Minimum requirements for Outside air required.
Mechanical engineering firm that is familiar with requirements of places of public assembly.

[TechmanTerry]

Let me picture this, 200 people having fun drinking, dancing, arm& legs& butts swing around in a 1200 sq ft area? Is this a "mosh pit"? LOL. So , 500 btu per person(maybe more) x 200 people =100,000 btu. Plus all of that exhaled CO2, and all of that perspirations?

[VTP99]

5 ton won't even handel the occupants 🙄

[TechmanTerry]

Minimum requirements for Outside air required.
Mechanical engineering firm that is familiar with requirements of places of public assembly.

Hang on pecmsg. Lets use some plain ol' logic here.

For example. At least two dozen years ago I was on an install w/ my Electrician/Tin Knocker/ High End AC installer buddy. His muscular well built helper was assigned the task of digging the trench for the electric/lineset for three cond units 50' away from the house. The "hole" was 50'l x 2'w x 2'd. For every 2' horizontal or so he needed a break to cool off as there was no breeze(awhhhh,poor guy). So I suggested to "the digger" that if he worked harder and faster and longer, that he could create his own "wind storm" there by cooling himself off as he worked instead of working 10-15 minutes on and 15 minutes off(recovering). LOL.

[BaldLoonie]

Dancing couple be upwards of 1000 BTUs per person. Using that, need about 17 tons just to cover the people not to mention outside air and load on the building.