SantaFe ULTRA Serie Instrucciones De Instalación página 18

11
OUTDOOR AIR VENTILATION
1. Determine Ventilation Requirements
The MINIMUM ventilation requirement is calculated using ASHRAE 62.2-2016. Use one or both of the options below
to determine your ventilation requirement. Follow all local and national building and safety codes.
Option 1: Calculating Airflow Requirement Using ASHRAE 62.2-2016 Airflow Equation
ASHRAE Airflow in CFM = [House Area in Sq.Ft. x 0.03] + [(Number of Bedrooms +1) x 7.5]
NOTE: Use 'Number of Bedrooms + 1' or 'Number of Occupants', whichever is larger.
Example 1: Number of Bedrooms + 1
1800 square foot house with 3 bedrooms, 4 occupants = [1800 X 0.03] + [(3+1) X 7.5] = 84 CFM
Example 2: Number of Occupants
1800 square foot house with 3 bedrooms, 5 occupants = [1800 X 0.03] + [5 X 7.5] = 91.5 CFM
Record the required CFM ____________
Option 2: Calculating Airflow Requirement Using Table 4.1 from ASHRAE 62.2-2019
Ventilation Air Requirements, CFM
Floor Area
(ft
<500
501-1000
1001-1500
1501-2000
2001-2500
2501-3000
3001-3500
3501-4000
4001-4500
4501-5000
Record the required CFM ____________
18
Santa Fe ULTRA70 Installation & Operation Instructions
)
2
1
30
45
60
75
90
105
120
135
150
165
Number of Bedrooms
2 3
38 45
56 60
68 75
83 90
98 105
113 120
128 135
143 150
158 165
173 180
Table 4.1 from ASHRAE 62.2-2019
4 5
53 60
68 75
83 90
98 105
113 120
128 135
143 150
158 165
173 180
188 195
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