Hired-Hand Farm Hand Series: Stage Master - Manual (Page 9)

Part No. 4801-0151 Rev 4-06 Farm Hand Stage Master 9 of 40
6.2.1 Stage Sensors (P1)
A stage can be programmed to run off of any sensor or combination of sensors. The following is
the list of P1 options:
P1 = Stage Sensors
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
6.2.2 Stage Mode (P2)
The Farm Hand Stage Master is a very intelligent controller, therefore, it needs to not only know
whether this is a heating or cooling stage but also what type of cooling stage. The Farm Hand
Stage Master reacts not only to temperature but also curtain position. This feature allows the
grower to program the cooling stages to work exactly like he wants them to without the expense
of hard wiring through relays and limit switches. This feature allows the Farm Hand Stage Master
to better react to the environment. Any Stage can be programmed to be one of the following:
1 = Heat
This mode allows the equipment to operate when room temperature is
below the OnPoint for the stage, and the curtains are closed.
2 = Cool Stir
This mode setting allows the cool stage to run whether the main curtain is
open or closed. The only time that this mode will not run is during tunnel
mode.
3 = Cool Negative
This mode setting only allows the cooling stage to run if the main curtain
is closed, hence the name Negative. This stage will not run if the
controller is in tunnel mode.
4 = Cool Negative Tunnel
This mode setting works exactly like the Cool Negative setting except it
will run if the controller goes into tunnel mode. This stage is sometimes
referred to as a transitional stage. In other words, it operates before it
goes into tunnel and also during tunnel.
5 = Cool Tunnel
This mode setting only works when the controller is in tunnel mode.
6.2.3 Stage Timer Settings (P3)
The Farm Hand Stage Master is equipped to satisfy any of your minimum ventilation
needs for regular runtime timers, to cool timers, to progressive timers.
00 = No Timer
Select 0 for the timer setting if you do not want the stage to be on a timer.
Important: In the following descriptions, many references are made to the Main Curtain
(Unit 1). If you do not have a Main Curtain or do not wish to use the auxiliary connection as
shown in Section 11.2, you must place a jumper across the signal terminals for Unit 1. This
manipulates the controller into thinking the main curtain is closed. In turn, this allows the heat
and negative stages to operate.