1. Plenum Runs Plenum Runs

2. Plenum 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

3. 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!!!!

4. Square Duct Board

5. Spiral Round Duct Proper insulation and vapor barrier critical Spacepak plenum take-offs for metal round Support properly

6. Using 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 THAN 60% of CAPACITY ON ONE SIDE

7. Branch Tee’s 70/30 30% OF MAXIMUM CAPACITY

8. Ideal 50/50 Split

9. Another Solution

10. 60/40 Split

11. NO NOZZLES HERE ESP-4860

12. Think “2 Systems” SYSTEM ONE SYSTEM TWO