SDR Single Duct Round Terminal Unit
Terminal Units
The operating principle of the SDR Single Duct Round Terminal Unit is that, as the space cooling load is satisfied, the primary damper modulates closed to restrict air flow to the space. This ensures that a constant space temperature is maintained.
- Factory-assembled unit consisting of a primary air damper assembly contained in a single-unit housing
- For rare applications where minimum ventilation requirements are non-mandatory, SDR can be used at full shut-off
- Shaft comes with Delrin bearings and it features a position indicator for easy identification of the damper angle
Product Application
Make your spaces comfortable with our SDR single duct air terminal designed for interior zones where no reheat is required. It is a cost-efficient solution that helps in regulating the volume of conditioned primary air supplied to the occupied zone. Along with efficient performance, this unit also offers simplicity of installation and quiet performance at typical operating conditions. It is a great choice when you need to control the space temperature in cooling-only applications.
Features
- A wide variety of sizes, 9 in total, results in a total flow range of 75 to 4000 CFM
- Industry-standard round inlet collars sized to accept either flexible or rigid duct
- The unit operates air terminals at low pressures and airflows, ensuring quiet performance at typical operating conditions
- Duct mounted heat sources supplied by others can be used if supplemental heat is required
- The unit will be supplied with Controls Disconnect Switch (toggle) as an accessory that can disconnect all power to the terminal unit
- The unit also offers a transformer of voltage defined on schedule as an option
- Constructed of heavy-duty 22-gauge casing
- Round damper blade constructed of elastomeric gasket is sandwiched between two heavy-duty 22-gauge galvanized steel plates, resulting in low air leakage
- Comes with a patented Flo-Cross® Sensor which features 24-point upstream and downstream sensing with center averaging chambers and exclusive amplification wings
- SDR terminals can be furnished without controls, with electronic analog controls, with factory-mounted direct digital controls (supplied by others) or with four function pneumatic controls
- All control enclosures are supplied with dust-tight gasketing
Benefits
Easy Operation
The shaft features a position indicator for easy identification of damper angle.
Superior Reliability
Damper blade is constructed and fitted so as to ensure minimum air leakage.
Optimum Performance
Patented Flo-Cross® sensors with amplification baffle give accurate pressure reading.
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