Transcript Rules of Unico to Remember

Unico Installation Rules
Steps to a Unico Layout
• 1. Do a total load calculation for the building
• 2. Do a room by room load calculation
• 3. Determine where the air handler/return will
go
• 4. Run the plenum as long as you can to
connect the tubing
• 5. “Connect the Dots”
Laying out a System
• Room by Room Load Calculations:
– Manual J
– Wrightsoft
– Quick Sizer
Laying Out a Unico System
• Calculate Room Load
• Rough Rule of Thumb: 2000 btu’s of cooling
per outlet
• Always put more not less outlets in the space
Decibel Levels
2"
Sound
Level
ultra low
Appro
x
dB(A)
CFM
25
20
Outlets
/ton
Recommended application
10
Multimedia Rooms, high altitude
very low
27
28
8
Rooms with hard surfaces (wood or
concrete floors and walls)
low **
29
33
7
Rooms with carpet, drapes, furniture
normal
32
40
6
Large rooms or where sound is not
critical (minimum number of outlets)
excessive
35
45
5
Industrial environments
Unico System Uses Static Regain
An Example of Static Regain
Not Equal Friction
This is what most think of for
Warm Air Systems
Plenum Sizing
Diameter
Max CFM
Typical Model
7”
700
1218 or 2430
9”
1000
3642
10*
1300
4860
*Required for M4860
Plenum Length – Rule of Thumb
•
•
•
•
Plenum can be up to 150’ equivalent length
First Tee = 30’
All other tees = 15’
Elbows = 15’
24 Inch Rule
60/40 Rule
• Split 50/50, no more than 60/40
• Applies to all tees
70/30 RULE
• No more than 30% of CFM on side branch
Space Takeoffs evenly
7/16/2015
Unico System
15
For Every 5 feet Over 10
You Lose 10% of Capacity
25 ft. run is 70% of an outlet
24.5 CFM of air
Bulletin30-100(2011-05).pdf
Unico Commissioning Sheet