4-way ceiling pattern diffuser with removable core.
Explanation
APGW-4 = Diffuser type
444 = Diffuser size
Accessories (Optional)
OBD = Volume control damper
Dimensions
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| APGW-4 294/150 | 145 x 145 | | APGW-4 369/225 | 225 x 225 | | APGW-4 444/300 | 295 x 295 | | APGW-4 595/445 | 445 x 445 |
Quick selection
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| Q | Ak | 0.0109 | 0.0244 | 0.0435 | 0.0978 | |
| 100 | | H= | 2.7 | 0.52 | 0.17 | 0.1 | | | | | | | | | | | Vz | H= | 3.2 | 0.2 | 0.11 | 0.08 | | | | | | | | | | | | H= | 3.8 | 0.11 | 0.08 | 0.06 | | | | | | | | | | | Vk | 2.5 | | | | | X0,25 | 1.8 | | | | | Ps | 4 | | | | | Lw(A) | 22 | | | | | 150 | | H= | 2.7 | 0.78 | 0.26 | 0.16 | 0.52 | 0.17 | 0.1 | | | | | | | | Vz | H= | 3.2 | 0.29 | 0.17 | 0.12 | 0.2 | 0.11 | 0.08 | | | | | | | | | H= | 3.8 | 0.17 | 0.12 | 0.09 | 0.11 | 0.08 | 0.06 | | | | | | | | Vk | 3.8 | 1.7 | | | | X0,25 | 2.1 | 1.8 | | | | Ps | 10 | 2 | | | | Lw(A) | 32 | <20 | | | | 200 | | H= | 2.7 | 1.04 | 0.35 | 0.21 | 0.7 | 0.23 | 0.14 | | | | | | | | Vz | H= | 3.2 | 0.39 | 0.22 | 0.16 | 0.26 | 0.15 | 0.1 | | | | | | | | | H= | 3.8 | 0.22 | 0.16 | 0.12 | 0.15 | 0.1 | 0.08 | | | | | | | | Vk | 5.1 | 2.3 | | | | X0,25 | 2.4 | 2 | | | | Ps | 18 | 4 | | | | Lw(A) | 39 | 22 | | | | 300 | | H= | 2.7 | | | | 1.04 | 0.35 | 0.21 | 0.78 | 0.26 | 0.16 | | | | | Vz | H= | 3.2 | | | | 0.39 | 0.22 | 0.16 | 0.29 | 0.17 | 0.12 | | | | | | H= | 3.8 | | | | 0.22 | 0.16 | 0.12 | 0.17 | 0.12 | 0.09 | | | | | Vk | | 3.4 | 1.9 | | | X0,25 | | 2.5 | 2.1 | | | Ps | | 8 | 3 | | | Lw(A) | | 32 | 20 | | | 400 | | H= | 2.7 | | | | 1.39 | 0.46 | 0.28 | 1.04 | 0.35 | 0.21 | | | | | Vz | H= | 3.2 | | | | 0.52 | 0.3 | 0.21 | 0.39 | 0.22 | 0.16 | | | | | | H= | 3.8 | | | | 0.3 | 0.21 | 0.16 | 0.22 | 0.16 | 0.12 | | | | | Vk | | 4.6 | 2.6 | | | X0,25 | | 2.9 | 2.5 | | | Ps | | 15 | 5 | | | Lw(A) | | 39 | 28 | | | 600 | | H= | 2.7 | | | | | | | 1.56 | 0.52 | 0.31 | 1.04 | 0.35 | 0.21 | | Vz | H= | 3.2 | | | | | | | 0.59 | 0.34 | 0.23 | 0.39 | 0.22 | 0.16 | | | H= | 3.8 | | | | | | | 0.34 | 0.23 | 0.18 | 0.22 | 0.16 | 0.12 | | Vk | | | 3.8 | 1.7 | | X0,25 | | | 3.1 | 2.5 | | Ps | | | 10 | 2 | | Lw(A) | | | 38 | 21 | | 800 | | H= | 2.7 | | | | | | | 2.09 | 0.7 | 0.42 | 1.39 | 0.46 | 0.28 | | Vz | H= | 3.2 | | | | | | | 0.78 | 0.45 | 0.31 | 0.52 | 0.3 | 0.21 | | | H= | 3.8 | | | | | | | 0.45 | 0.31 | 0.24 | 0.3 | 0.21 | 0.16 | | Vk | | | 5.1 | 2.3 | | X0,25 | | | 3.7 | 2.9 | | Ps | | | 18 | 4 | | Lw(A) | | | 45 | 28 | | 1000 | | H= | 2.7 | | | | | | | | | | 1.74 | 0.58 | 0.35 | | Vz | H= | 3.2 | | | | | | | | | | 0.65 | 0.37 | 0.26 | | | H= | 3.8 | | | | | | | | | | 0.37 | 0.26 | 0.2 | | Vk | | | | 2.8 | | X0,25 | | | | 3.3 | | Ps | | | | 5 | | Lw(A) | | | | 34 | | 1200 | | H= | 2.7 | | | | | | | | | | 2.09 | 0.7 | 0.42 | | Vz | H= | 3.2 | | | | | | | | | | 0.78 | 0.45 | 0.31 | | | H= | 3.8 | | | | | | | | | | 0.45 | 0.31 | 0.24 | | Vk | | | | 3.4 | | X0,25 | | | | 3.7 | | Ps | | | | 8 | | Lw(A) | | | | 38 |
Symbols and specifications
- Q = Air volume in m³/h
- Ak = Effective surface (free area) in m²
- B = Distance between the diffusers in m
- H = Installation height of the diffusers in m
- Vz = Maximum velocity at the occupied zone according to distance between the diffusers and installation height in m/s
- Vk = Average effective velocity through the diffuser in m/s
- X0.25 = Throw length in m at an end velocity Vt of 0,25m/s
- µPs = Static pressure loss given in P
- Lw(A) = Acoustic power in dB(A)
- The throw X0.25 is given at an end velocity of 0.25m/s for a smooth ceiling without any obstacles.
- The values are given for isothermal supply air. Throw distances for cooling conditions at -11K can be calculated by dividing the X0.25 values with factor 1.1. For heating purposes at Dt of +11K a multiplier of 1.1 should be applied to the given X0.25 value.
- In order to achieve a high comfort level, selections can be made according to the maximal velocity at the occupied zone Vz. These values are given at distances between diffusers B and installation heights H. Velocities Vz lower than, or equal to 0,25m/s at the occupied zone are advised.
- The pressure losses Ps are given for diffusers without damper of with fully opened damper.
- The acoustic power values Lw(A) are given for diffusers without damper of with fully opened damper without room attenuation. Acoustic powers below 20dB(A) are mentioned as "<20" in the tables.
- For all special requirements, please contact our engineering office.
Placement instruction
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