INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

RTU in training room

RTU in training room

(OP)
Office space and training room with 50 people ~2000sf.
Office space load is 3 tons, training room load is 10 tons
Existing RTU-1 is 7.5 ton unit only and it will serve office (cannot demo it and have to use the remainder capacity). The remaining 4 ton will serve training room.
The training room needs 6 tons more. The ventilation load is 950 CFM.
How to select the RTU-2 for Training room? 320 CFM will be picked up by RTU-1 for ventilation and 4 tons for cooling.
Training room needs 630 CFM of OA.
Option 1:
Is it better to select standard 20% OA unit that provides 630 CFM OA? 10 ton unit will provide 800 CFM of OA and heating /cooling. RTU-1 does not de-humidify very well It has a discharge of 59degf. Can the 10 ton unit pick up all dehumidification load for training room, if equipped with HGRH?
The Latent Btuh of the unit meets the load calc Btuh, but the sensible is lot higher than what is needed.
Option 2:
Select high OA RTU with 50% OA or 100%OA. More expensive.

Which is better option?

RE: RTU in training room

What is happening in the training room?

RE: RTU in training room

Why can you not Demo RTU-1?

RE: RTU in training room

Use a small HRV to ventilate the training room and condition it with ductless split units. If you are putting some air in from RTU-1, you run the risk of poor temperature control or duelling thermostats.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close