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Your guarantees, our certifications

SODISTRA is committed to a proactive certification policy to provide you with even more guarantees.

 

Casing airtightness

Standard: NF EN 1886: 2006
Ventilation of buildings - Air handling units - Mechanical performances

Role: Assessment of the degree of air tightness which is typified by the leak flow rate per m2 of the air handling unit casing.

Result:
L1

Sodistra air handling units are rated in the best air tightness class by TUV Nord.

Air tightness class of the air handling unit casing, negative test pressure 400 Pa:

Classification Maximum leak flow rate
dm3/(s.m2)
Result
Sodistra AHU
L1 0,15 0,000 dm3/(s.m2)
L2 0,44
L3 1,32

Air tightness class of the air handling unit casing, positive test pressure 700 Pa:

Classification Maximum leak flow rate
dm3/(s.m2)
Result
Sodistra AHU
L1 0,22 0,000 dm3/(s.m2)
L2 0,63
L3 1,90
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