Dwyer Instruments SAH SMART Air Hood Series User manual

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Series SAH SMART Air Hood®Balancing Instrument -
SMART Air Hood App®Software
Specications - Installation and Operating Instructions
Bulletin TE-SAH-SWV2
The Series SAH SMART Air Hood®Balancing Instrument is the most accurate air
ow hood on the market. With single-user ability, the ergonomic design is light weight
and easy to maneuver, with less physical stress, while speeding up the balancing
process and reducing costs. Constructed of a rugged polypropylene material, the
Hood features Quad Flow Design Technology for controlling air ow and minimizing
back pressure, which yields superior measurement accuracy. Featuring Wi-Fi direct
communication, with a range of up to 200 yards between the hood and the handheld
test instrument.
The SMART Air Hood® Balancing Instrument includes the SMART Air Hood App®
Software for air ow balancing. The app uses predictive balancing which is a method
of predicting the optimal ow set point for each diffuser while balancing the HVAC
system. The handheld application software includes algorithms enabling the SMART
Air Hood to achieve best in class accuracy.
TABLE OF CONTENTS
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connecting to a Wi-Fi Network ......................................2
Setting up a Google® Account .......................................3
Updating the SMART Air Hood Application Software. ....................3
Application Preferences .......................................... 4
Connecting to the Hood ...........................................4
Meter Mode ......................................................5
Zeroing the Hood ................................................5
Selecting the Diffuser .............................................5
Manual K-Factor ...............................................5
Preferences ....................................................6
Hood Information ...............................................6
Logging ........................................................6
Predictive Balancing ...............................................7
Branches .......................................................7
Branches Menu ................................................8
Add Registers ...................................................9
Balancing Procedure ............................................10
FCC/Industry Canada Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Warranty/Return .................................................12
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
Phone: [phone]
Fax: [phone]
www.dwyer-inst.com
e-mail: [email protected]
®

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Next, choose a local Wi-Fi network to connect to.
Enter in the password to connect to the Wi-Fi access point.
The handheld will now be connected to the Wi-Fi network.
I. SETUP
To be able to update the PredictAir™ Application Software, a Google account must be
created so that the application can be updated from Google Play™ store. To properly
connect to Google Play™ store a connection to a Wi-Fi network must be established.
CONNECTING TO A WI-FI NETWORK
First, press the application icon on the home screen (should look similar to the below
image).
Then nd the settings icon and click on it.
Next, press Wi-Fi to enter into the Wi-Fi settings.

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SETTING UP A GOOGLE ACCOUNT
First, go back to main Settings screen and choose the “Add account” option.
Select Google.
If you have a Google account select “Existing” and enter in your account information to
register your Google account to the device.
If you do not have a Google account follow the guide below to add one.
First, press “New” and follow the on screen prompts.
When the account is created you might need to do an authentication check to activate
the account. The notice will be in the pull down menu on the device. Press the
notication and follow the instructions to activate the account.
If the account was created correctly the following screen will show your new account.
UPDATING THE SMART AIR HOOD®APPLICATION SOFTWARE
Now that a Wi-Fi connection is established and a Google account is tied to the
handheld instrument, the Google Play™ store can now be accessed.
Open Google Play™ store from the applications.
Search for SMART Air Hood® Application Software and press it. Once selected, press
the “UPDATE” button to update the application.
The SMART Air Hood® App should now be up to date.

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APPLICATION PREFERENCES
When the application is rst opened, the following screen will be shown.
To access the application preferences, press the three lines at the top left of the page
and select “Preferences”. The following screen will appear.
After the initial startup, the app will automatically open to the home screen shown
below. The Preferences can also be accessed from the home screen by pressing the
three lines at the top left of the page and selecting “Preferences”.
CONNECTING TO THE HOOD
Once the handheld instrument is on, open the SMART Air Hood® Application Software.
To begin searching for the air ow hood, the hood connection screen can be accessed
by pressing the “HOOD SETTINGS & CONNECT BUTTON” on the welcome screen,
or by selecting hood connection from the menu on the main screen..
As the app discovers hoods, they will be added to the list below the search status bar.
Select the hood that is to be paired and conrm your selection by clicking “YES” when
prompted to do so.
Touch to
edit the
default units
of these elds

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Once connected, press the “X” in the top left corner to return to the home screen. Note:
Press the information button “ ” on the hood connection screen to obtain general hood
information such as calibration date, serial number, etc.
To disconnect from the current hood, press the hood name on hood connection screen.
The disconnect dialog comes up, which allows for the hood to be disconnected. If “No”
is selected, the dialog will be closed without any other action being taken. If “Yes” is
selected, the hood will be disconnected, but still paired.
ZEROING THE HOOD
In order for the hood to be zeroed, place it in the desired orientation in which is going
to be utilized. Make sure that the hood is blocked so that no air is owing through it.
In order to zero the hood, press the three bars at the top of the screen or slide from the
left or press the menu button. Press the “Zero” button at the top of the home screen.
After the correct hood position is veried, select “Zero The Hood” to begin the zeroing
process.
When the zeroing process is complete, it will show the following screen and the
reading will be 0. Note: If there is too much air ow, the zero button will be disabled.
SELECTING THE DIFFUSER
To select a diffuser, press the diffuser tab above the “Log This Reading” button.
For ceiling diffusers For side-wall diffusers

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Select the “Standard” accuracy level to take readings at the industry standard accuracy
level.
Select the “High” accuracy tab to take high accuracy readings. The neck size and
diffuser type must be considered for high accuracy readings which results in a larger
diffuser selection list.
If the desired diffuser is not available in the diffuser library, the K-factor can be entered
under the “Manual” tab.
MANUAL K-FACTOR
In the case that diffuser being used is not in the downloadable library, but the K-factor
of the diffuser is known, the K-factor can be manually entered into the application.
While on the application home screen, tap on the diffuser to open the Diffuser list.
Select “Manual” under the accuracy level selection. Dene it as a Register for supply
ow or Return for return ow and press on the K-Factor eld to enter the K-factor of
the diffuser. Once completed, select “SAVE” in the top right corner to exit to the main
menu.
HOOD INFORMATION
As mentioned in the hood connection menu, general hood information can be obtained
by selecting the “ ” next to the desired hood.
Once the “ ” button is selected, the information below will appear.
To return to the main menu, select the “X” in the top left corner of the “About the hood”
screen and again in the “Hood Connection” screen.
LOGGING
Log les can be generated from the main home screen. To begin logging, press the
“LOG THIS READING” towards the bottom of the screen.
Once the reading has been logged, the reading will be indicated in the bottom right
corner.

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PREDICTIVE BALANCING
To enter predictive balancing, press the menu button in the top left corner of the home
screen (three horizontal bars) and select “PREDICTIVE BALANCING”.
BRANCHES
Once Predictive Balancing is opened, you will be prompted to create a new branch or
to import an existing branch if there is not currently any branches set up.
To create a new branch, select “CREATE NEW BRANCH” and enter the name and
location of the branch when prompted to do so. Once the branch has been named,
registers can either be imported or added manually.
To manually add registers, select “ADD REGISTERS”. From the register screen, the
name, target CFM, and diffuser type can be entered.
To view the logged readings, press the log button in the bottom right corner.
In the reading log screen, the individual logs can be named by clicking below the
“Register name” heading. To delete individual logs, select the “X” corresponding to the
log that is to be deleted.
Logs can be exported by selecting the “EXPORT” button in the bottom left corner. To
delete all logs, select the “CLEAR ALL” button in the top right corner and conrm the
action by selecting “YES” on the pop up.

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BRANCHES MENU
Clicking the 3 horizontal lines at the top of the page will open the Branches Menu.
Pressing “Sort Branches” will bring up a dialog that contains the options to sort
branches by different methods.
Clicking the “+” symbol in the bottom right corner will allow you to add a new branch.
“Import” will allow you to select a le to choose which branch to load. Clicking the
branch name loads that branch and adds it to the list of branches. Once complete, the
app will be return to the Branches main page with the new branch added to the list.
“New Branch” will allow you to set up an additional branch by manually entering in
the registers.
Once all of the necessary registers have been entered or imported, the branch will be
added to the “Current Branches” list.
Next, click on the desired branch name. This will bring up a dialog with the available
actions for that branch. If the branch has been previously started, then the following
menu will be shown.
“Edit” will bring up the “Add Edit Branch” screen. Note: “Restart” will appear instead
of “Edit” if balancing has already begun. “Restart” will clear any balancing data for that
branch and allow you to restart balancing from the beginning.
“Delete” will bring up a dialog asking to conrm the deletion.
“Export Branch” will bring up a le dialog.
Click on the “File Name” eld to enter the le name associated with this branch. This
eld can’t be blank or an error message will appear. The folder icon with the arrow will
navigate up a folder. Folder names do not have extensions and le names will have
extensions.

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For more options on the Add/Edit Resisters screen, press the three horizontal bars in
the top left corner to open the menu.
“Clear Registers” will erase all the registers in the list for the selected branch.
“Export Registers” will allow the registers to be saved to the handheld instrument. Note
that the same dialog will come up asking to overwrite the le if a name is chosen that
is already in use.
“Set Keys” will bring up a dialog that allows the selection of which registers are
candidates to be the key (checked registers can be the key and unchecked cannot be
the key). At least one register must be selected.
ADD REGISTERS
If “New Branch” was selected, registers will have to be added.
“Import Registers” will open the le manager and allow a .csv le to be chosen. Note
that some of the les might not be a register le, which displays an error if selected.
“Add Register” will bring up the Add Edit Register screen with nothing lled in except
for the default diffuser. As in Meter Mode, if the desired diffuser is not shown, select the
manual diffuser to create a diffuser with a known K-Factor.
Clicking either the Name or Target eld will bring up a keyboard allowing values to be
entered. Note that the register name must be unique. If a register name is entered that
is already in the list, the following dialog will be shown.
Both the name and the target elds must be lled in to create a register.
Touch to
change
diffuser Touch to close
dialog and set
which registers
can be key
Touch to check
and uncheck
registers

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BALANCING PROCEDURE
Once the desired branches have been created, the balancing can be started by
selecting “Begin Balancing”.
After conrming all dampers are opened, the rst step of the balancing procedure is to
take an initial sweep of all registers within the selected branch .
Red indicates that a reading still needs to be taken from the register. After selecting
the register to measure it’s button will turn from red to white, indicating that it is the
active register.
Click register button again to store the reading, at which point it will change from white
to green, indicating that a value has been stored for that register.
Repeat this procedure until all of the registers have been measured. Clicking on a
register again allows for a retaking of that register if needed.
If the slide out menu is opened, the following choices will be shown.
If the slide out menu is opened, the following choices will be shown.
“Pause Balancing” will pause the balancing project and return to the home screen.
“Enter Manual Data” allows data to be entered manually for a register that cannot be
measured. To manually enter data, select a register (changing the button from red to
white) and then select “Enter Manual Data” to enter the ow value.
Once all of the registers have been measured, press and hold the continue button at
the bottom until the predictive balancing screen appears.
As shown below, the app will direct you to the register to measure:
Press and hold the OK button to bring up the dialog box asking to conrm that the
hood is correctly placed.