UNI EN 1886 : 2008
Current
The latest, up-to-date edition.
VENTILATION FOR BUILDINGS - AIR HANDLING UNITS - MECHANICAL PERFORMANCE
17-07-2008
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Usage of real units and/or model boxes for the verification
of mechanical performances
5 Mechanical strength of casing
5.1 Requirements and classification
5.2 Testing
6 Casing air leakage
6.1 Requirements and classification
6.1.1 Units operating under negative pressure only
6.1.2 Units operating under both negative and positive
pressure
6.2 Testing
6.2.1 Test apparatus
6.2.2 Preparation for test
6.3 Test procedure
6.4 Determination of allowable leakage rates
7 Filter bypass leakage
7.1 Requirements
7.1.1 General
7.1.2 Acceptable filter bypass leakage rates
7.1.3 Two or more filter sections in the same unit
7.2 Testing
7.2.1 General
7.2.2 Filters downstream of the fan (positive pressure)
7.2.3 Filters upstream of the fan (negative pressure)
8 Thermal performance of casing
8.1 General
8.2 Requirements and classification
8.2.1 Thermal transmittance
8.2.2 Thermal bridging
8.3 Testing
8.3.1 General
8.3.2 Test facility
8.3.3 Testing procedure
8.3.4 Evaluation of the test results
9 Acoustic insulation of casing
9.1 General
9.2 Test requirements
9.3 Test method
9.4 Test procedure
9.5 Evaluation of the sound insertion loss D[p]
10 Fire protection
10.1 General
10.2 Material
10.3 Sealings for air handling units
10.4 Locally limited and small construction parts of air
handling units
10.5 Air heaters
10.6 Filters, contact humidifiers and droplet eliminators of
AHU's
10.7 Heat recovery
11 Mechanical safety
Annex A (informative) - Arrangement and requirements for circulating
fans
Bibliography
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