GRADA WR230 Circular Swirl Diffuser with Fixed Blades and Diffuser Ring Owner’s Manual
- August 29, 2024
- GRADA
Table of Contents
GRADA WR230 Circular Swirl Diffuser with Fixed Blades and Diffuser Ring
Specifications
- Product Name: WR230 Circular Swirl Diffuser with Fixed Blades and Diffuser Ring
- Variants : WP210S, WP210T, GR003
- Material : Powder-coated sheet steel
- Finishing : Powder coating RAL9010
- Nominal Sizes : 400, 500, 315, 400
- Mounting Options : Equipped with mounting straps
Product Usage Instructions
Installation
- Choose the appropriate variant based on your requirements (WP210S, WP210T, GR003).
- Ensure the mounting surface is suitable for installation.
- Securely attach the circular swirl diffuser using the provided mounting straps.
- If using a plenum, connect it to the diffuser using the spigot.
Adjustment
To adjust the airflow direction, use the fixed blades on the diffuser. Rotate
them according to your desired airflow pattern.
Maintenance
Regularly clean the diffuser and blades to ensure optimal airflow performance.
Use a soft cloth and mild detergent for cleaning.
VARIANTS
- WR230, WR230_S, WR230_T
- WR220, WR220_S, WR220_T
The swirl diffuser type WR230 is equipped with fixed blades. It is designed for surfa-ce mounting but can also be mounted di-rectly on exposed ducts. A high induction is obtained through the excellent swirl ef-fect. The diffuser ring guarantees a strong coanda effect over a wide temperature ran-ge (also at low flow rates) which makes it optimally suited for VAV applications.
- Non-adjustable air pattern with fixed blades
- High induction with strong coanda effect through diffuser ring
- Suitable for exposed duct mounting
- Optimally suited for VAV applications
ACCESSORIES
TECHNICAL INFORMATION
| APPLICATION | Type | Supply or exhaust |
|---|---|---|
| Airflow direction | Horizontal | |
| FRONTPLATE | Standard material | Powder coated sheet steel |
| Standard finishing | Powder coating RAL9010 | |
| Product finishing options | Powder coating RAL of choice | |
| Nominal sizes | Ø100, 125, 160, 200, 250, 315, 400, |
500mm
Mounting options| WR220 without central screw fixing WR230 with central screw
fixing
TRANSITION PIECE WP200T/WP210T| Standard material| Brut aluminium
Mounting options| Equipped with mounting straps
TRANSITION PIECE WITH CLAMPING WP260T/WP270T| Standard material| Brut
aluminium
Mounting options
| For assembly in a slatted ceiling system, the ceiling is squeezed bet- ween the diffuser and the transition piece
Equipped with mounting straps
PLENUM WP200S/WP210S| ****
Standard material
| ****
Galvanised (275g/m²) sheet steel
Spigot plenum| PP/TPE spigot, Class D spigot with double lip seal
Insulation (optional)| Melamine 6mm
Volume control (optional)| Galvanised perforated volume flow controller with
manual operation
Mounting options
| Equipped with mounting eyes (ø 7mm), mounting straps available upon request
QUICK SELECTION
Supply Q v **[m³/h]**
ØN [mm]
| L w| ****
WR230
| WR230 + WP210T| WR230 + WP210S
100
| 25 dB(A)| 37| –| 43
35 dB(A)| 54| –| 57
125| 25 dB(A)| 50| 53| 59
35 dB(A)| 81| 77| 80
160| 25 dB(A)| 88| 84| 107
35 dB(A)| 134| 121| 146
200| 25 dB(A)| 137| 128| 181
35 dB(A)| 203| 184| 238
250| 25 dB(A)| 221| 214| 271
35 dB(A)| 333| 302| 366
315| 25 dB(A)| 477| 387| 412
35 dB(A)| 663| 551| 563
400| 25 dB(A)| 747| 589| 668
35 dB(A)| 1074| 834| 855
500| 25 dB(A)| 1044| –| 1027
35 dB(A)| 1539| –| 1346
EFFECTIVE AIR DISCHARGE AREA
Supply A k [m²]
ØN [mm]
100| 125| 160| 200| 250| 315| 400| 500
0,0029| 0,0046| 0,0078| 0,0126| 0,0203| 0,0332| 0,0554| 0,0893
PRODUCT KEY
DIMENSION
ØN| ØA| ØB| ØD| E1| E2| E3| G| H|
H1| H2| H3| W’ x W”
---|---|---|---|---|---|---|---|---|---|---|---|---
100| 160| 129| 80| 50| –| 52| 140| 205| 65| –| 155| 200 x 226
125| 200| 174| 100| 50| 39| 52| 160| 235| 75| 176| 175| 275 x 301
160| 250| 209| 125| 50| 39| 58| 185| 261| 76| 182| 179| 325 x 351
200| 300| 251| 160| 50| 39| 58| 220| 296| 76| 182| 196| 375 x 401
250| 350| 302| 200| 50| 39| 58| 260| 333| 73| 183| 213| 450 x 476
315| 450| 392| 250| 50| 39| 78| 310| 395| 85| 202| 248| 500 x 526
400| 570| 530| 315| 66| 40| 50| 375| 496| 121| 237| 327| 600 x 626
500| 700| 615| 400| 68| –| 50| 460| 570| 128| –| 359| 800 x 826
WR230AF + WP270T
DIMENSIONS
| ØN | ØA’ | ØB | ØD | E4 | H4 | K |
|---|---|---|---|---|---|---|
| 100 | 140 | 131 | 80 | 40 | 140 | 140 |
| 100 | 140 | 131 | 100 | 40 | 125 | 140 |
| 125 | 180 | 176 | 100 | 40 | 148 | 185 |
| 125 | 180 | 176 | 125 | 40 | 148 | 185 |
| 160 | 215 | 211 | 125 | 40 | 154 | 215 |
FAQ
Q: Can I paint the diffuser a different color?
A: Yes, the diffuser can be painted with a powder coating RAL of your choice
for customization.
Q: How do I know which nominal size to choose?
A: Select the nominal size based on the dimensions of your ventilation system.
Refer to the product specifications for available sizes.
Q: Is insulation necessary for the plenum?
A: Insulation for the plenum is optional but recommended for improved energy
efficiency and noise reduction.
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