SMARTEMP Circular Nozzle long throw

Eyeball jet nozzle with adjustable discharge direction, for installation in ducts, walls, bulkheads or plenums.

Location – side: Suitable for discharge from walls or bulkheads.
Mixed flow discharge:  High velocity jet for long horizontal throws, with optional swirl element for shortened throws.
Adjustable direction: Discharge direction adjustable over an arc of 60° (±30° from the central axis).
Manual adjustment:  Discharge direction adjustment is manual.
Circular face shape: Round mounting flange.
Concentric face pattern: Round discharge aperture with surrounding circular face.
Metal Face: Powder coated aluminium finish.

Options

Electric adjustment: Discharge direction adjustment (upwards for cooling; downwards for heating) by means of electric actuator with 24V AC/DC power supply and 2-10 V control input.  Well suited to supply-to-room temperature differential control for optimised cooling and heating performance, providing effective downward heat penetration and draught-free operation year round.
Thermal adjustment: Self-acting thermal wax-bulb up/down discharge direction adjustment – no external power source or controls required. Cool supply air is directed upwards providing draught-free air motion. Warm supply air is directed downwards for effective penetration of heat to a low level. The discharge direction bias is manually adjustable.
Radial swirl vanes: Recessed black radial swirl vanes reduce throw.

 

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Product Information

Airflow rate

  • 8 – 1000 L/s  (29 – 3600 m³/h)

Throw

  • 3 – 60 m

Nominal neck sizes

  • DN100 – jet discharge; manual adjustment
  • DN125 – jet discharge; manual adjustment
  • DN160 – jet discharge; manual adjustment
  • DN200 – jet discharge; manual adjustment
  • DN250 – jet or swirl discharge; manual adjustment
  • DN315 – jet or swirl discharge; manual, thermal or electric adjustment
  • DN400 – jet or swirl discharge; manual, thermal or electric adjustment
  • DN500 – jet or swirl discharge; manual, thermal or electric adjustment
  • DN630 – jet discharge; manual, thermal or electric adjustment

Discharge height

  • 3 – 10 m

Features

  • Round eyeball nozzle
  • Jet discharge for long throw – DN100 to DN500
  • Optional swirl discharge for reduced throw – DN250 to DN500
  • Manual adjustment – DN100 to DN630
  • Optional actuator adjustment (electric, or thermal with adjustable bias) – DN315 to DN630
  • 60° arc of discharge direction adjustment (ie ±30° from central axis)
  • Connection to pressure plenum, or to flexible or spiral duct via rear-side entry spigot
  • Powder coated aluminium

Function

The SMARTEMP Circular Nozzle (CNW-AD) is an eyeball nozzle with adjustable discharge direction suitable for long horizontal throw applications when discharging a jet, or medium horizontal throw applications when discharging a swirl pattern. Suitable for installation in walls or bulkheads.

The aluminium nozzle of the CNW-AD diffuser is housed in a pivoted aluminium sphere, which may be swivelled over an arc of 60° (ie 30° in any direction from the central axis). Swivel adjustment is manual, electric or thermally powered.

Discharge direction adjustment is up/down only for electric and thermal discharge direction options. Thermal or electric adjustment are typically used to swivel the CNW-AD nozzle upwards in cooling mode and downwards in heating mode.

The self-acting, thermally powered actuator option adjusts discharge direction as a function of the supply air temperature, thereby eliminating the need for controls and wiring. The bias of the mechanism is adjustable from a +10° to -30° range to a +30° to -10° range. Discharge direction is relative to the horizontal.

Electrical discharge direction adjustment provides stepless control from +30° to -30° to the horizontal via a 24 V AC/DC power supply and 2-10 V analogue input control signal.

The aluminium components of the eyeball jet diffuser may optionally be powder coated.

The stable discharge characteristics of the CNW-AD eyeball jet nozzle, operating at substantially constant airflow over a wide range of supply air cooling differentials of ΔTsupply-room ≥ -8 K, ensure enhanced levels of comfort over horizontal throws of ≤ 60 m and typically achieve an air diffusion performance index (ADPI) in excess of 80%.

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