Round ceiling diffusers with adjustable cones
Explanation
SRR-D = Type diffuser
200 = Size diffuser (Ø diffuser neck connection)
Dimensions
|
160
| 158 | 335 | 310 | 105 | | 200 | 198 | 423 | 395 | 118 | | 250 | 248 | 517 | 490 | 135 | | 315 | 313 | 640 | 615 | 145 |
Quick selection
|
| Q | Ak summer | 0.031 | 0.046 | 0.069 | 0.106 | | Ak winter | 0.029 | 0.042 | 0.06 | 0.088 | |
| 200 | | H= | 2.7 | 0.43 | 0.31 | 0.24 | 0.33 | 0.24 | 0.18 | | | | | | | | Vz | H= | 3.2 | 0.32 | 0.25 | 0.2 | 0.25 | 0.19 | 0.15 | | | | | | | | | H= | 3.8 | 0.25 | 0.2 | 0.17 | 0.19 | 0.15 | 0.13 | | | | | | | | Vk summer | 1.8 | 1.2 | | | | Vk winter | 1.9 | 1.3 | | | | X0,25 | 2.6 | 2 | | | | Y0,25 @Dt +10K | 2.3 | 1.4 | | | | Ps summer | 5 | 2 | | | | Ps winter | 16 | 7 | | | | Lw(A) summer | <20 | <20 | | | | Lw(A) winter | 30 | <20 | | | | 300 | | H= | 2.7 | 0.64 | 0.46 | 0.36 | 0.49 | 0.35 | 0.27 | 0.26 | 0.2 | 0.18 | | | | | Vz | H= | 3.2 | 0.48 | 0.37 | 0.3 | 0.37 | 0.28 | 0.23 | 0.21 | 0.17 | 0.16 | | | | | | H= | 3.8 | 0.37 | 0.3 | 0.25 | 0.28 | 0.23 | 0.19 | 0.17 | 0.15 | 0.13 | | | | | Vk summer | 2.7 | 1.8 | 1.2 | | | Vk winter | 2.9 | 2 | 1.4 | | | X0,25 | 3.9 | 3 | 2.2 | | | Y0,25 @Dt +10K | 3.2 | 2.8 | 2 | | | Ps summer | 12 | 5 | 2 | | | Ps winter | 36 | 16 | 8 | | | Lw(A) summer | 27 | <20 | <20 | | | Lw(A) winter | 44 | 33 | 21 | | | 400 | | H= | 2.7 | 0.86 | 0.61 | 0.48 | 0.66 | 0.47 | 0.37 | 0.35 | 0.27 | 0.25 | 0.18 | 0.17 | 0.15 | | Vz | H= | 3.2 | 0.64 | 0.5 | 0.4 | 0.49 | 0.38 | 0.31 | 0.28 | 0.23 | 0.21 | 0.15 | 0.14 | 0.13 | | | H= | 3.8 | 0.5 | 0.4 | 0.34 | 0.38 | 0.31 | 0.26 | 0.23 | 0.19 | 0.18 | 0.13 | 0.12 | 0.11 | | Vk summer | 3.6 | 2.4 | 1.6 | 1 | | Vk winter | 3.8 | 2.6 | 1.9 | 1.3 | | X0,25 | 5.2 | 3.9 | 3 | 2 | | Y0,25 @Dt +10K | 4.2 | 3.4 | 3.2 | 2.6 | | Ps summer | 21 | 8 | 3 | 1 | | Ps winter | 62 | 27 | 14 | 6 | | Lw(A) summer | 37 | 26 | <20 | <20 | | Lw(A) winter | 54 | 43 | 31 | <20 | | 600 | | H= | 2.7 | 1.29 | 0.92 | 0.72 | 0.99 | 0.71 | 0.55 | 0.53 | 0.41 | 0.37 | 0.29 | 0.26 | 0.24 | | Vz | H= | 3.2 | 0.97 | 0.74 | 0.6 | 0.74 | 0.57 | 0.46 | 0.43 | 0.35 | 0.32 | 0.25 | 0.23 | 0.21 | | | H= | 3.8 | 0.74 | 0.6 | 0.51 | 0.57 | 0.46 | 0.39 | 0.35 | 0.29 | 0.27 | 0.21 | 0.19 | 0.18 | | Vk summer | 5.4 | 3.6 | 2.4 | 1.6 | | Vk winter | 5.7 | 4 | 2.8 | 1.9 | | X0,25 | 7.7 | 5.9 | 4.4 | 3.2 | | Y0,25 @Dt +10K | 6 | 4.7 | 4.1 | 3.8 | | Ps summer | 47 | 18 | 7 | 3 | | Ps winter | 137 | 63 | 29 | 13 | | Lw(A) summer | 52 | 40 | 27 | <20 | | Lw(A) winter | 68 | 57 | 45 | 32 | | 800 | | H= | 2.7 | | | | 1.32 | 0.94 | 0.73 | 0.7 | 0.55 | 0.49 | 0.39 | 0.35 | 0.32 | | Vz | H= | 3.2 | | | | 0.99 | 0.76 | 0.62 | 0.57 | 0.46 | 0.42 | 0.32 | 0.3 | 0.27 | | | H= | 3.8 | | | | 0.76 | 0.62 | 0.52 | 0.46 | 0.39 | 0.36 | 0.27 | 0.25 | 0.24 | | Vk summer | | 4.8 | 3.2 | 2.1 | | Vk winter | | 5.3 | 3.7 | 2.5 | | X0,25 | | 7.9 | 5.9 | 4.2 | | Y0,25 @Dt +10K | | 6.1 | 5 | 4.5 | | Ps summer | | 32 | 12 | 5 | | Ps winter | | 110 | 51 | 22 | | Lw(A) summer | | 50 | 37 | 23 | | Lw(A) winter | | 67 | 55 | 42 |
Symbols and specifications
- Q = Air Volume in m³/h
- Ak winter = Effective surface (free area) in m² given at the upper position of the inner adjustable cone
- Ak summer = Effective surface (free area) in m² given at the lower position of the inner adjustable cone
- B = Distance between diffusers in m
- H = Installation height of the diffusers in m
- Vz = Maximum velocity at the occupied zone, given for cooling at the lower position of the inner adjustable cone, regarding the distance between diffusers and installation height in m/s
- Vk winter = Average effective velocity for Ak winter through the diffuser in m/s
- Vk summer = Average effective velocity for Ak summer through the diffuser in m/s
- X0.25 = Horizontal throw in m at an endvelocity Vt of 0,25m/s isothermal at the lower position of the inner cone
- Y0.25 = Vertical throw in m at an endvelocity Vt of 0,25m/s with a temperature difference of +10K at the upper position of the inner cone
- Ps winter = Static pressure loss for Ak winter given in Pa
- Ps summer = Static pressure loss for Ak summer given in Pa
- Lw(A) winter = Acoustic power for Ak winter in dB(A)
- Lw(A) summer = Acoustic power for Ak summer in dB(A)
- The throw X0.25 is given at an end velocity of 0.25m/s for a smooth ceiling without any obstacles.
- 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 grilles without damper of with fully opened damper.
- The acoustic power Lw(A) are given for grilles 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
CFD simulation Cooling
CFD simulation Heating
|
