Selecting Duct Connections & Configuring the Air Return for RYT-24 Ducted Ceiling-Concealed Indoor UnitsUpdated an hour ago
Introduction
Learn how to select the ideal duct connection and configure the air return for the Quantum Ultra Ducted Ceiling Concealed (RYT-24) system.
This unit supports both rectangular and round duct connections. Follow the instructions below to ensure proper airflow and system performance.
Pioneer does not make specific ducting recommendations, as every project and scenario is unique.
Note
- Regardless of the configuration, ensure all connections are airtight and structurally supported to prevent air leakage, vibration, and noise during operation.
Duct Selection
Rectangular Ducting
Rectangular air ducts can be connected directly to the indoor unit's discharge outlet using rivets or other secure fasteners. Refer to the unit's outline drawing for the correct outlet dimensions and mounting positions.
Round Ducting
Round ducts must be connected using a transition adapter between the round duct and the unit's rectangular outlet. The outlet can then branch to one or more supply air grilles or air outlet windows.
Installation Diagrams
Important Guidelines
- Balance the airflow to multiple outlet grilles by using airflow diverters or branch dampers as needed.
- Ensure consistent air velocity at each outlet to maintain uniform comfort throughout the conditioned space.
- Always comply with local building codes and ducting best practices when routing and insulating ducts.
Air Return Configuration
Downward Return
Use a section of pleated canvas duct as a flexible connection between the unit's return air opening and the return air grille. Secure the duct to both the unit and the grille using rivets or other approved fasteners.
This flexible canvas connection allows for adjustment based on ceiling height. It also absorbs vibration, reduces noise, and prevents ceiling panel movement during operation.
Rear Return
Secure a fabricated or pre-made rigid return air duct to the unit's return air opening using rivets. Connect the other end of the duct to the return grille or air return window. Install a flexible duct connector at the grille end to allow slight movement and isolate noise.