Unico System® Balancing Orifice Kit, For Use With: Plenum Takeoff, Includes: (15) UPC-30 15% Reduction Cap, (5) UPC-31 35% Reduction Perforated Disk and (5) UPC-32 50% Reduction Perforated Disk
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 air flow.
