plenum runs plenum runs. plenum run usually located in the attic or basement. run in any location...
TRANSCRIPT
PlenumRuns
PlenumRuns
Plenum RunPlenum Run
• Usually located in the attic or basement.
• Run in any location accessible for attachment of
supply tubing.
• More economical to run where it shortens length of 2
or more supply runs.
• Insure layout will allow recommend balancing.
copyright Mestek, Inc. 2004
Considerations:Considerations:
• Want to keep runs as close as possible to 10 feet in length. full
40 cfm and 2000 btu per outlet makes it much easier to
balance…..
• Generally less $$$ to run supply plenum extra distance than run
long 2” runs.
• Want to “premake” the 2” runs downstairs where it’s nice and
cool!!!!
Square Duct BoardSquare Duct Board
Spiral Round DuctSpiral Round Duct• Proper insulation and vapor barrier
critical
• Spacepak plenum take-offs for metal round
• Support properly
Using TeesUsing Tees
• Install tee minimum of
24” after air handler.
•No outlets between fan
& tee.
•No more than 60% of
capacity on one leg
24”
NO MORE THAN60% of CAPACITY
ON ONE SIDE
Branch Tee’s 70/30Branch Tee’s 70/30
30% OFMAXIMUMCAPACITY
Ideal 50/50 SplitIdeal 50/50 Split
Another SolutionAnother Solution
60/40 Split60/40 Split
NO NOZZLES HERE
ESP-4860ESP-4860
Think “2 Systems”Think “2 Systems”
SYSTEM ONE
SYSTEM TWO