Hired-Hand Farm Hand Series: POWER VENT INLET - Manual (Page 8)

Part No. 4801-0149 Rev 1-01 Farm Hand Power Vent 6
8.2. Programming Mode
Programming Mode allows you to set up the controller to act the way you want. While in program
mode you change the settings the controller uses for time delay, ramping, Fahrenheit or Celsius
temperature display, and Network (HHNet PC Compatibility) settings. Section 15 contains a
Program Data Sheet for recording your personal program settings for the Power Vent. Copy this
form as needed.
As you go through the program, you will press the Plus or Minus buttons to adjust the setpoint of
the current parameter (shown in the display screen). When you have the value to the setting you
want, press the mode button and move to the next parameter and adjust it’s value until it is
acceptable. When you are finished making changes to the controller’s settings, press the mode
button until “PS1” appears in the display, then press the mode button one more time. You are now
out of programming mode.
Note: If at any time you wait for one minute while in programming mode, the
controller will “time out” and return to normal operation.
Enter programming mode by holding the mode button down for 5 seconds.
8.2.1. P1 = Temperature Unit (Fahrenheit or Celsius)
Choose a zero(0) if you want Fahrenheit, or a one(1) if you want Celsius operation.
8.2.2. P2 = Pressure Units
0 = Inches of w.c.
1 = Millimeters of w.c.
2 = Pascals
8.2.3. P20 = Vent Machine Time Delay
This setting is the length of time a pressure reading must be out of range before the
controller will operate the vents. This will keep the vents from constantly cycling open,
then closed. If your vents cycle too much, increase this setting using the plus (+) button.
8.2.4. P30 = Ramping Mode On/Off
Ramping mode may be turned on or off. If you choose a zero (0) or “Ramping Off” here
you will not see the following settings.
However, if you choose a one (1) or “Ramping On”, with the plus or minus button, you
turn ramping on, and will have to set the following items. See the section on ramping for
more information on this feature.
P31 = High Temperature Limit
The outside temperature the controller will use in determining the low range of
its limits.
P32 = High Temperature - High Pressure Setpoint
The upper limit for pressure when outside temperature is at the high temperature
limit.
P33 = High Temperature - Low Pressure Setpoint
The lower limit for pressure when outside temperature is at the high temperature
limit.