Orifice Pkg, Balancing For Plenum Take-Offs - 15 Pack

Orifice Pkg, Balancing For Plenum Take-Offs - 15 Pack

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Availability: In stock

Model #: UPC-35-15
Brand : Unico

Availability: In stock

  • Brand New in Original Packaging

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Unico Orifice Pkg, Balancing For Plenum Take-Offs - 15 Pack - UPC-35-15


  • 15 Each - 15% Reduction cap----P/N: A00149-001
  • 5 Each - 35% Reduction disc----P/N: A00150-002
  • 5 Each - 50% Reduction disc--P/N: A00150-003

This kit offers a means to balance the system at the take-off. This kit should be used during the initial installation of the system when the take-offs are easily accessible. If installation has been completed and it is found that reduction is needed and the take-off is not accessible, balance the system at the outlet using UPC-36-15. Placing the balancing orifice at the take-off allows the sound attenuator duct to remove any noise caused by its restriction. Using a balancing orifice is typical in small rooms or when only a partial outlet is required. Use balancing orifices sparingly to maximize the airflow.


Simply calculate how much airflow is needed to be reduced at the outlet. Once the calculation is made, the correct orifice must be selected and applied onto the take-off. Installation Once the appropriate reduction is selected, place the reduction cap over the take-off as shown in figure 2 and seal it using the following tape: UL-181A-P Aluminum tape or UL-181B FX duct tape.

Additional Information

Brand Unico
Application No
liquid_line_connection_size No
Suction Line Connection Size No
amperage(amp0 No
Heating Capacity No
Cooling Capacity No
Warranty No