Hired-Hand Farm Hand Series: Vent Master 16 Stage - Manual (Page 8)

Part No. 4801-5098 Farm Hand Vent Master 5
P35 = Low Temperature Target Pressure 0.11" w.c.
As you can see from the graph, if outside temperature is 50°F, the controller will try to maintain a static
pressure between .08, and .1” w.c. If the pressure goes above .1” w.c. the vent machine will open, and
reduce static pressure, and if the pressure goes below .0.08” w.c., the vent machine will close, increasing
the static pressure.
8. Day to Day Operating Instructions
This section of the manual will give you all you need to know about the day to day operation of your
controller.
8.1 Checking/Adjusting Temperatures, and Timer Percentages
When no one has pressed a button for over one minute, the display will automatically show the
room temperature and the display indicator will indicate “Temperature”. To see the Static
Pressure, press the button labeled “Mode”. This button is located in the center of the controller
facepad. When this button is pressed, watch the green LED’s beside the main display.
Whenever a single LED is lit, this is the parameter you are viewing.
For viewing Target Temperature both the LEDs beside “Target” and “Temperature” will be lit.
For viewing Target Static Pressure both the LEDs beside “Target” and “Static Pressure” will be
lit.
Room Temperature
The temperature read by the sensor(s) chosen in the Program Mode under the parameter
PSd. Refer to Section 9.1 for an explanation of the PSd parameter.
Static Pressure
The static pressure sensed by the controller. While displaying the Static Pressure, the
controller will also display the temperatures read by sensors 1, 2, 3 & 4 in the
corresponding stage displays. The remaining stage displays will be blank at this time.
Var/Timer Percentage
The Var/Timer percentage parameter can be used to set variable speed and/or runtime
percentage depending on the model of the Farm Hand Vent Master.
Temperature
displays Room
Stage Status
Indicator LED
Displays reading of Sensor
1
Displays reading of Sensor
2
Displays reading of Sensor
3
Displays reading of Sensor
4
(Outside Sensor)