Hired-Hand Farm Hand Series: Vent Master 16 Stage - Manual (Page 20)

Part No. 4801-5098 Farm Hand Vent Master 17
12.2 Setting up Stage Modes, and Timer Status
There are three parameters used in programming any stage. They are P1-P3. The following is
an overview of how to program a stage:
1. Enter Program Mode by pressing and holding the Mode button for 5 seconds until
P1 is displayed, and the stage 1 display begins to flash. This parameter selects the
sensor(s) that this stage watches for on/off operation.
2. Select the stage you want to program by pressing the stage button (next to the stage
display.)
3. Press the + or - button until the desired sensor is displayed. 100= sensor 1; 020 =
sensor 2; 120 = Average of Sensors 1& 2; 003 = Sensor 3; 103 = Average of
Sensors 1 & 3; 023 = Average of Sensors 2 & 3; 123 = Average of Sensors 1,2,& 3.
If you want to program more stages sensors, press the next stage’s button, and
repeat step 3.
4. Press the Mode button again and P2 is shown. This parameter selects what mode
the stage operates as.
5. Press the + or - button until the desired mode is displayed.
6. If you want to program more stages modes, press the next stage’s button, and repeat
step 6.
7. Press the Mode button until P3 is displayed. This parameter allows you to put a
stage on the system timer (5 or 10 minutes).
8. Press the + or - button until the desired setting is displayed.
9. If you want to program more stages stage timer settings, press the next stage’s
button, and repeat step 9.
10. Exit Program Mode by pressing the Mode button until after PS4 has been displayed
or wait 1 minute.
12.3 Setting Up Tunnel Control
Note: If you do not want the controller to ever enter tunnel mode just make sure that the Tunnel
On/Off switch is in the off position and you can ignore this section.
The Vent Master is a very versatile tunnel controller. It provides the grower with many different
ways to tunnel based on the layout of the house. It also provides two different ways of initiating
tunnel mode. The following are some tips and examples of setting up this controller to tunnel
your house appropriately.
1. The first step in setting up your tunnel house is to configure the stages that you want as your
cool tunnel stages. If some stages need to operate in tunnel mode and in normal mode, then
program these stages to be cool negative tunnel stages. See the Program Reference section
in the back of this manual for more information on the operation of various stage modes.
2. The next step is to determine if you would like to operate your building at a different static
pressure while in tunnel. If so, you must set the Split Target switch (Tunnel Switch SWX 4)
to ON. Then set the desired tunnel pressure with P22.
3. The last step in setting up your tunnel house is determining how you would like to initiate
tunnel mode. You can initiate tunnel mode by outside temperature or by your lowest
programmed cool tunnel stage. The lowest programmed cool tunnel stage is determined by
the lowest OnPoint. If you would like to tunnel based on outside temperature you must set