4
AIRFLOW SET TING
CAUTION:
Refer to local and national Ventilation and Indoor Air Quality standards to ensure the proper airflow rate.
Ensure the HVAC unit air filter is clean and installed. Turn the ES24V to the “ON” position and wait approximately 10
seconds for the HVAC unit fan to turn on and the motorized damper to open. (Note, ensure that the Motorized Damper
is enabled on the ES24V; refer to ES24V IOM on page 6-7). Using a manometer or anemometer, measure and record
the airflow through the fresh air duct (refer to the measuring device instructions and the airflow/air velocity table on
page 5. Keep in mind, lower velocities are preferred to decrease noise and increase filter effectivity). Once complete,
turn the ES24V to the “OFF” position and calculate the required continuous CFM based on the ventilation code.
ASHRAE 62.2-2010
Required Continuous CFM = ((0.01 * Floor Area in ft²) + 7.5(# of be 1))
Example:
2,000 sqaure foot dwelling
3 bedrooms
= 50 CFM continuous
ASHRAE 62.2-2013 & 2016
Required Continuous CFM = ((0.03 * Floor Area in ft²) + 7.5(# of be 1))
Example:
2,000 sqaure foot dwelling
3 bedrooms
= 90 CFM continuous
Now that the required continuous CFM is known, calculate the required run time / hour.
Run Time / Hour = 60 * (Required Continuous CFM / Actual Measured CFM)
Example (based on ASHRAE 62.2-2010 example above):
50 Required Continuous CFM
150 Actual Measured CFM
= 20 minutes / hour
Set the ES24V to the correct Run Time / Hour and High / Low Temperature & Humidity limits per the ES24V IOM on
pages 6-7.
FIGURE 3
ES24V
- (20VA NOT AVAILABLE FOR DIRECT
CONNECTION OF MOTORIZED DAMPER)
SENSOR
C
TS
TS
R
G
SENSOR
R
C
G
G
C
R
TRANSFORMER
COMMON
Refer to the ES24V – Envirosense Ventilation Control IOM on pages 8-9 for ES24V wiring connections and operation.
Содержание MDX-ES24VK
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