Hired-Hand Emergency Back-Up and Alarms: Farm Hand Back Up System - Manual (Page 7)

4801-5048 Farm Hand Back Up 6
One Room Operation
For one room operation, stages 1, 2, and 3 are cool stages, and stage 4 is an optional heat or cool
stage. (Optional settings are discussed later in this manual). The “Mode” button is used to select
the Room Temp. indicator, the High Limit indicator, or the Low Limit indicator. Room Temp.
displays the average temperature of the two sensors. The High Limit is set above the Target
Temperature, and the Low Limit is set below a target temperature by using the + and - buttons.
Stage 1 turns on when the temperature of the room reaches the High Limit. If the temperature of
the room continues to rise, each successive cooling stage will turn on at 2º increments above the
High Limit setting. For example, if the High Limit is set for 70º, then stage 1 turns on at 70º, stage
2 turns on at 72º, stage 3 turns on at 74º, and stage 4 turns on at 76º. If stage 4 is used as a heat
stage, then stage 4 turns on when the temperature of the room drops to the Low Limit. The cool
stages turn off when the temperature drops 2º below the temperature at which each stage turned
on. For example, if stage 3 turns on at 74º, stage 3 turns off at 72º. Stage 1 will always turn off at
a temperature 2º below the High Limit. If stage 4 is used as a heat stage, then stage 4 turns off at a
temperature 2º above the Low Limit.
Two Room Operation
For two room operation, sensor 1 and sensor 2 are placed in different rooms. Sensor 1 gives the
reference temperature for stages 1 and 2. Sensor 2 gives the reference temperature for stages 3
and 4. Stages 1 and 3 are always Cool stages. Stages 2 and 4 are optional Cool/Heat stages. The
High Limit and Low Limit are set using the same procedures as in one room operation. If the
temperature of room 1 rises to the High Limit setting, then stage 1 turns on. If stage 2 is set for
cooling, then stage 2 turns on if the temperature of room 1 rises 2º above the High Limit. If the
temperature of room 2 rises to the High Limit setting, then stage 3 turns on. If stage 4 is set for
cooling, then stage 4 turns on if the temperature of room 2 rises 2º above the High Limit. Cool
stages turn off as described in one room operation. If stage 2 is set for Heat and the temperature of
room 1 drops to the Low Limit, then stage 2 turns on. If stage 4 is set for Heat and the
temperature of room 2 drops to the Low Limit, then stage 4 turns on. Heat stages turn off as
described for one room operation..
.
5.1 Toggle Sequence Of Mode Button
5.2 Checking/Adjusting Temperatures, and Settings
When you press the Mode button, watch the green LED’s beside the main display.
Whichever LED is lit is the parameter you are viewing: “Room Temp.”, “High Limit”, and
“Low Limit” values.
Note: To adjust these parameters, press the Mode button until you see the parameter you
want to adjust, then use the + button to increase the value, and the - button to decrease the
value.
Room Temp.
High Limit
Low Limit