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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
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SDR Single Duct Round Terminal Unit

  • Product Application
  • Features
  • Benefits
  • Product Documentation
  • Related Products

    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.
    Product Application

    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
    Easy Operation

    The shaft features a position indicator for easy identification of damper angle.

    Superior Reliability
    Superior Reliability

    Damper blade is constructed and fitted so as to ensure minimum air leakage.

    Optimum Performance
    Optimum Performance

    Patented Flo-Cross® sensors with amplification baffle give accurate pressure reading.

    Technical Resources

    Document Name
    Description
    Language
    Resource Type

    Data Sheet

    TU~RF_FEA04_09 (English)

    Single Duct Round Terminal Unit - SDR - Features

    English Data Sheet
    VIEW

    Data Sheet

    TU~RF_DIM04_09 (English)

    SDR - Product Dimensions

    English Data Sheet
    VIEW

    Engineering Guide

    TU~RF_ENG04_09 (English)

    SDR - Engineering Data

    English Engineering Guide
    VIEW

    Specification Guide

    TU~RF_SPC04_09 (English)

    Single Duct Round Terminal Unit - Specification

    English Specification Guide
    VIEW

    Specification Guide

    TU~RF_HTS04_09 (English)

    Single Duct Round Terminal Unit - SDR Units - Specification

    English Specification Guide
    VIEW

    Submittal

    Sd-7105 (English)

    Terminal Units - SDR - Single Duct Round Terminal Unit - Submittal

    English Submittal
    VIEW

    Submittal

    2200 (English)

    Terminal Units - SDV Single Duct VAV Analog Electronic Controls Cooling Only - Submittal

    English Submittal
    VIEW

    Submittal

    1200 (English)

    Terminal Units - SDV Single Duct VAV Pneumatic Controls Direct Acting - Normally Open Dual Maximum - Separate Signal - Submittal

    English Submittal
    VIEW

    Submittal

    1201 (English)

    Terminal Units - SDV Single Duct VAV Pneumatic Controls Direct Acting - Normally Open Dual Maximum - Cooling With Reheat - Submittal

    English Submittal
    VIEW

    Submittal

    1202 (English)

    Terminal Units - SDV Single Duct VAV Pneumatic Controls Direct Acting - Normally Open - Submittal

    English Submittal
    VIEW

    Submittal

    1203 (English)

    Terminal Units - SDV Single Duct VAV Pneumatic Controls Reverse Acting - Normally Open - Submittal

    English Submittal
    VIEW

    Submittal

    1204 (English)

    Terminal Units - SDV Single Duct VAV Pneumatic Controls Direct Acting - Normally Closed - Submittal

    English Submittal
    VIEW

    Submittal

    1205 (English)

    Terminal Units - SDV Single Duct VAV Pneumatic Controls Reverse Acting - Normally Closed - Submittal

    English Submittal
    VIEW

    Reference Guide

    TU~RF_GEN04_09 (English)

    SDR - Selection Procedure & General Information

    English Reference Guide
    VIEW

    Installation and Operations Manual (IOM)

    FLOC-B (English)

    Terminal Units - Flow Sensing Flo-Cross Sensor - O&M

    English Installation and Operations Manual (IOM)
    VIEW
    No resource found for selected filter

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