Fieldpiece HG3 - Wireless HVAC Guide System Analyzer - Manual (Page 26)

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5 0 5 1
6.2 CFM INPUT FORM
Inputs
Grille 01 Each grille has a numbered label.
ID
Each grille has an alphanumeric customizable ID.
Flow
Choose Supply or Return.
Manufacturer's Data This is the free area correction for each grille.
Selections
None No area is used and CFM cannot be calculated.
No Corrections No corrections are made and CFM is based on
the size of the grille entered i.e. no grille on duct exit.
Free Area Use Manufacturer's free area in square feet (sqft),
inches(sqin), centimeters(sqcm), or meters (sdm).
Area Multiplier Enter the manufacturer's Area Multiplier and grille
dimensions.
Fieldpiece Defaults Use the Fieldpiece Defaults for grille type and
input size if no manufacturer's data is available.
Velocity
The velocity can only be entered with Fieldpiece airflow accessory
head(s) such as the AAV3. This is for convenience and to ensure accurate
measurements. It allows for multiple measurements per grille. Hold the
vane perpendicular to the grille, set the AAV3 to velocity and press Enter
to start taking the measurement.
Avg While measuring velocity, press Right Arrow to take additional readings
to get a more accurate average. You can take up to 99 readings per grille.
Add a Grille Highlight ADD A GRILLE and press Enter.
Customer ID Used in the file name to save, recall and download tests.
Each grille is labeled with a
number and alphanumeric ID
on the INPUT FORM.
Enter the Manufacturer's
data here or scroll down to
Fieldpiece Defaults. From
there, select the appropriate
default, based on size and
type of grille.
Velocity of air being measured
by the AAV3 Accessory Head.
Highlight Velocity and press
Enter to start measuring.
Traverse the grille slowly and
press the right arrow to take
several measurements to get
an accurate average velocity.
Press Enter to add another
grille to the test. CFM (cubic
feet per minute) is calculated
separately for each grille.
Select Return or Supply for
each Grille.
CFM INPUT FORM.
CFM INPUT FORM continued from above.