KVADRA-450 DIFFUSER
Item no. 6544
Document type: Product card
Document date: 2019-07-10
Generated by: Systemair Online Catalogue
6544 KVADRA-450 Diffuser
Description
Systemair Kvadra square 4-way ceiling diffuser with connection transition KRC and plenum box PER as accessories.
Function
Kvadra supply- and exhaust diffuser for ceiling installation. The diffuser can be used in offices, shops or similar premises. It can be connected to square ducts or circular ducts via connection transition KRC and to PER plenum box. The diffuser can be dismantled for duct cleaning. Kvadra has a high induction which makes it suitable for cooled air. Maximum temperature difference is dT 12 K.
Design
Kvadra is manufactured from galvanized sheet metal with a white powder-coated finish (RAL 9010) and is available in the following sizes: (square) 150×150, 225×225, 300×300, 450×450, and with KRC (circular) 125, 160, 250, 315 and 400. The connection transition KRC is manufactured from galavnized sheet metal and is equipped with a perforated metal sheet for pressure distribution and is simple to connect.
How to use for exhaust air
This device can be used for exhaust air.
Mounting
Correct adjustment requires a length of straight duct, 4 times the duct diameter in front of the PER plenum box. The distribution unit is connected to the duct with screws or pop rivets. Dismantling of the supply air unit: release the cones by gently pressing and turning the cones simultaneously.
Reassemble the unit correspondingly.
When assembling KRC to the Kvadra diffuser, make sure that Kendra’s connection edges fits into the KRC hold down springs. Gentle tap the two parts together so that Kendra’s connection edges bottoms into the hold down springs.
Technical parameters
| Other | |
| Weight | 2 kg |
Dimensions
| Kvadra | □A | □B | □C |
| 150 | 150 | 294 | 210 |
| 225 | 225 | 369 | 285 |
| 300 | 300 | 444 | 360 |
| 375 | 375 | 519 | 435 |
| 450 | 450 | 594 | 510 |
Accessories
Accessories
KRC-450 Transition Kvadra (6534)
Kvadra-R1 450 Damper (42305)
THOR-315-400 (66763)
Documentation
Diagram
The diagram shows
Air volume (l/s and m3/h), total pressure (Pa), throw (l0,2) and sound pressure level [dB(A)].
Sound attenuation, ΔL (dB)
Mid-frequency band, Hz
| 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k | |
| Kvadra-150 | 21 | 17 | 12 | 6 | -1 | 2 | 2 | 2 |
| Kvadra-225 | 19 | 14 | 10 | 4 | -1 | 2 | 2 | 2 |
| Kvadra-300 | 21 | 11 | 7 | 2 | 0 | 1 | 2 | 2 |
| Kvadra-375 | 16 | 10 | 6 | 1 | 0 | 1 | 2 | 2 |
| Kvadra-450 | 14 | 8 | 3 | 1 | 0 | 1 | 2 | 2 |
| KRC + PER | 22 | 18 | 15 | 18 | 11 | 13 | 10 | 15 |
| Kvadra-150 | ||||||||
| Kvadra-225 | 24 | 19 | 15 | 16 | 11 | 12 | 11 | 12 |
| Kvadra-300 | 18 | 12 | 15 | 15 | 10 | 10 | 12 | 11 |
| Kvadra-375 | 14 | 12 | 10 | 12 | 10 | 8 | 10 | 11 |
| Kvadra-450 | 15 | 12 | 13 | 12 | 7 | 7 | 8 | 10 |
Sound power level, Lw
Lw(dB) = LpA + Kok (LpA = diagram Kok = table) correction factor Kok
| 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k | |
| Kvadra-150 | 16 | 6 | 5 | 2 | -2 | -9 | -20 | -26 |
| Kvadra-225 | 15 | 9 | 8 | 2 | -5 | -11 | -22 | -26 |
| Kvadra-300 | 9 | 3 | 9 | 1 | -4 | -10 | -19 | -23 |
| Kvadra-375 | 10 | 9 | 9 | 1 | -6 | -15 | -26 | -27 |
| Kvadra-450 | 17 | 8 | 11 | -4 | -10 | -19 | -25 | -24 |
KRC
| 63 | 125 | 250 | 500 | 1k | 2k | 4k | 8k | |
| Kvadra-150 | 11 | -1 | 2 | 4 | -1 | -9 | -19 | -24 |
| Kvadra-225 | 16 | 4 | 4 | 2 | -2 | -6 | -12 | -14 |
| Kvadra-300 | 11 | 3 | 6 | 0 | -1 | -5 | -19 | -20 |
| Kvadra-375 | 7 | 9 | 7 | 0 | -2 | -6 | -22 | -23 |
| Kvadra-450 | 12 | 7 | 9 | -1 | -4 | -8 | -25 | -25 |
KRC + PER
| Kvadra-150 | 12 | 5 | 7 | c | -1 | -9 | -18 | -22 |
| Kvadra-225 | 11 | 6 | 7 | 1 | -1 | -11 | -19 | -17 |
| Kvadra-300 | 12 | 8 | 4 | 0 | -1 | -7 | -12 | -12 |
| Kvadra-375 | 16 | 9 | 3 | 0 | -1 | -7 | -14 | -18 |
| Kvadra-450 | 16 | 8 | 4 | 0 | -1 | -11 | -18 | -25 |
| Tolerance | ±6 | ±3 | ±2 | ±2 | ±2 | ±2 | ±3 | ±4 |
Name: KVADRA-450 DIFFUSER | Item no.: 6544
Document type: Product card | Document date: 2019-07-10 | Generated by: Online catalogue
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