Rockwell Automation FANM FanMaster Energy Saving Package - Manual (Page 44)

3-8 FanMaster Configuration and Start Up
Allen-Bradley® FanMaster™ Energy Saving Package Installation Manual - Publication FANM-IN001B-EN-P – December, 2009 PN-65329
10. Press the value to the right of the “Supply Fan FLA” field and enter the
supply fan motor rated full load amps.
Note: At this point, any warning messages about an incorrect AHU unit
CFM value may display and can be disregarded until all values for the
supply and return fans have been entered. Press OK.
11. Press the value to the right of the “Unit CFM” field and enter the air
flow volume for the AHU. If you do not know the unit CFM, enter “0”
in this field to allow FanMaster to provide a calculated value based on
2,000 CFM per 1 HP (e.g., a 15 HP Supply Fan = 30,000 CFM). An
accurate value will display in this field only after all supply fan and
return fan (if installed) values have been entered.
12. If a return fan is not installed, press “No” next to the “Does AHU Have
A Return Fan?” field. If you pressed “No” for this step, continue with
step
15 below.
13. If a return fan is installed, press the value to the right of the “Return Fan
HP” field and enter the return fan motor rated horsepower.
14. If a return fan is installed, press the value to the right of the “Supply Fan
FLA” field and enter the supply fan motor rated full load amps.
15. Press the value to the right of the “Elect Cost $ per kWh” field and enter
the appropriate electricity cost in dollars per kilowatt hour.
16. Press the value to the right of the “Nat Gas Cost $/MMBTU” field and
enter the appropriate natural gas cost in dollars per one million BTUs.
Note: For HVAC systems with electric heating elements instead of gas,
set the value of this field to a value that is double the prevailing utility
rate (electric heat is typically twice the cost of gas). This value will
allow the calculator to estimate the cost of electric heat.
17. Press the value to the right of the “Heating Efficiency %” field and enter
the percentage of heating efficiency. If not known, the default value can
remain, however, may affect the calculated energy savings results.
18. Press the value to the right of the “Damper Minimum Pos %” field and
enter the estimated outside air damper open position when not in
economizer (free cooling) mode. This is the normal fresh air ventilation
position. Ten percent is typical.
Note: For systems with no outside air damper, set this field to 0%. This
will disable any possible heating or cooling savings calculations.
19. Select the coolant type used for the AHU. Press the up and down arrows
( ) below the list to scroll to and choose a type.
Press Enter ( ) to apply your selection. The selected type will be
highlighted.