ZRT-PDIL
Airflow regulator
ZRT-PDIL
Airflow regulator
The ZRT-PDIL with two-position pressure-independent terminals allows automatic balancing of standard or high-pressure air flows.
ZRT-PDIL
Aldes Parallel Damper In-Line Zone Terminals (ZRT-PDIL) are designed to introduce flexibility and dynamic control to central supply or exhaust ventilation systems. Used in both large and small systems, the ZRT-PDIL regulates ventilation without the need for individual fans or traditional VAV terminal units.
Each ZRT-PDIL is a two-position, pressure-independent terminal with a control damper to regulate high limit on-demand airflow control and integral passive regulators for automatic air balancing of the continuous and boost airflow setpoints. This unique combination provides flexible control schemes without the need for expensive pneumatic, electronic, or DDC control systems.
The ZRT-PDIL is primarily used for combination low-flow indoor air quality ventilation or make-up air, and on demand high-flow spot ventilation using the same central exhaust or supply fan system. This is achieved by integrating a minimum Constant Airflow Regulator (CAR) in the terminal end panel and in-line with the branch duct. The maximum airflow is controlled by a series of 24 VAC or 120 VAC powered motorized damper(s) and a secondary CAR airflow controller. With the maximum-air motorized control damper completely closed, the continuous CAR allows steady, low-volume airflow control (Continuous and Boost Constant Airflow Regulators – CAR3).
Each ZRT-PDIL is a two-position, pressure-independent terminal with a control damper to regulate high limit on-demand airflow control and integral passive regulators for automatic air balancing of the continuous and boost airflow setpoints. This unique combination provides flexible control schemes without the need for expensive pneumatic, electronic, or DDC control systems.
The ZRT-PDIL is primarily used for combination low-flow indoor air quality ventilation or make-up air, and on demand high-flow spot ventilation using the same central exhaust or supply fan system. This is achieved by integrating a minimum Constant Airflow Regulator (CAR) in the terminal end panel and in-line with the branch duct. The maximum airflow is controlled by a series of 24 VAC or 120 VAC powered motorized damper(s) and a secondary CAR airflow controller. With the maximum-air motorized control damper completely closed, the continuous CAR allows steady, low-volume airflow control (Continuous and Boost Constant Airflow Regulators – CAR3).
The + products
- Used in both large and small systems,
- Allows for selection between a continuous, regulated low airflow rate, and an on-demand, regulated high airflow rate,
- Replaces individual fans or variable air volume (VAV) terminals,
- Two-position pressure-independent terminal with a control damper and integral passive regulators (CAR3),
- Constant Airflow Regulators (CAR3) are used to prevent noise and excessive energy consumption caused by over-ventilation, as well as fluctuations in airflow rates as total system pressure varies,
- Controls ventilation in multi-family dwellings, classrooms, large spaces, and provides makeup air for laboratories,
- In-line mounting configuration allows installation in a duct system,
- Can be used in a supply or exhaust configuration,
- 24 VAC or 120 VAC wiring,