IICRC Standard and Guideline For Equipment Installation

Airmover Installations:

Class 2 and 3 Water Loss
Class 1 and 4 Water Loss
Axial Fan = 6 to 8 Lineal meters of wall
Axial Fan = 12 to 16 Lineal meters of wall.
Radial and Centrifugal = 3 to 4 Lineal meters of wall.
Radial and Centrifugal = 6 to 8 Lineal meters of wall.
Center Airmovers =10 to 20 square meters.
Center Airmovers = 10 to 20 square meters.

Dehumidification Installation:

The Formula: Cubic meters / Division Factor / AHAM Rating = Dehumidifiers Required

Class One
Class Two
Class Three
Class Four
Standard Refrigerant = 1 | Low Grain Refrigerant = 1.5
Standard Refrigerant = 2 | Low Grain Refrigerant = 2.5
Standard Refrigerant = 1.5 | Low Grain Refrigerant = 1.75
Standard Refrigerant = N/A | Low Grain Refrigerant = 1.5

Air Scrubbers Installations:

The Forumla: Cubic meters / Air Exchanges / Total CFM Rating = Air Scrubbers Required.

Air Exchanges required:

Category 1
Category 2
Category 3
Air Exchanges Per Hour = 2 Exchanges | Ratio per hour = .9
Air Exchanges Per Hour = 2 Exchanges | Ratio per hour = .9
Air Exchanges Per Hour = 4 Exchanges | Ratio per hour = .45
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