Hired-Hand Farm Hand Series: Vent Master 16 Stage - Manual (Page 17)

Part No. 4801-5098 Farm Hand Vent Master 14
Tunnel Switches
SWX 1 - Tunnel On/Off
This switch is used to enable or disable the tunnel mode of the controller.
When this switch is in the OFF position, the controller will not go into tunnel
for any reason.
SWX 2 - Tunnel On Stage
This switch tells the controller whether it is tunneling off of the lowest
programmed tunnel stage or if it is tunneling off of outside temperature. If this
switch is OFF, the controller will use the “Tunnel On Point” setting for entry
into tunnel.
SWX 4 – Split Target Pressures
If SWX 4 is OFF the Target Pressure will be used for both the Vent and Tunnel
machines. If SWX 4 is ON the controller will use the Target Pressure for the
Vent machine and the Tunnel Target Pressure (P22) for the Tunnel machine.
Status Switches
SWX 1 - Lock
This switch is used to lock the controller. When it is on, the user may change
settings such as target temperature and minimum speed/timer percentages but
they can not change the settings in program mode. If the switch is set to ON
the program settings are locked.
SWX 2 – English/Metric Units
This switch toggles between the use of English or Metric units. For English,
the temperatures are displayed in Fahrenheit and the pressure is displayed in
inches of water column (“ w.c.). For Metric units, the temperature is displayed
in Celsius and the pressure is displayed in Pascals or millimeters of water (mm
H
2
O) depending on the setting of SWX 6. (Note: If SWX 2 is changed, you
will have to reset your tunnel on points and OffPoints and your target
temperature.)
SWX 3 - 5/10 minute timer
This switch selects between a 5 and 10 minute system timer. If the switch is
ON, the timer is 10 minutes.
SWX 4 - Sensor 3 Active
This switch turns off sensor 3. If the switch is off, sensor 3 is turned off.
Note: This is used to disable the sensor in the back half of a half house
brooding situation. This way the low temperature reading does not affect the
temperature readings for the rest of the house. Just be sure that Sensor 3 is
placed in the non-brood end of the house. If the switch is ON, sensor 3 is used.
SWX 5 – Split Vent Units
If SWX 5 is ON, PowerTrak #1 will control the Vents and PowerTrak #2 will
control the Tunnel mode. If SWX 5 is OFF, PowerTrak #1 and PowerTrak #2
will always work together to maintain static pressure.
SWX 6 - Pascals/mm H
2
O
If SWX 2 is set for Metric units, and SWX 6 is set to ON, pressure is displayed
in millimeters of water (mm H
2
O). If SWX 6 is set to OFF, the pressure is
displayed in Pascals.
SWX 7 – Initialize Defaults
This switch is not implemented and must remain in the OFF position.