System 2000 AUTO TEMP
4
6.1. Day to Day Programming
6.1.1.
The Display
The display on the Auto Temp controller has 2 parts; the 2 Liquid Crystal Displays
(LCD's) located across the top of the controller, and the stage status display which
occupies the left 2/3's of the pad. The LCD's normally display information on a room by
room basis. This information is the room number (room #), the current temperature (in
the right-hand display), the target temperature (tt:), and the target percentage (t%). If
the controller is programmed for more than one room, the LCD's will step room by room
with each room's information being present for about 4 seconds.
While the LCD's are displaying room information, the stage status display shows the
status of each stage. This display has 5 parts. Starting left to right is the
Stage
column.
This column has a light and a push-button switch, and indicates whether the stage is on.
If the light beside the number is on, then that stage is on; if the light is off, the stage is
off. Pushing the button beside the number for each stage will toggle the light on of off.
The next two columns are
Heat
and
Cool
, and indicate which mode the stage is
programmed for. The 4th column is the
timer
. Any cool stage can be put on the timer by
pushing the button to the right of the timer light. If the timer light is on for a stage, that
stage will run with the room timer. One last note concerning the timer lights; when a
light is flashing slowly, it means that the device that the stage controls is actually
running. The 5th and final column in the stage status display is the
Function
column,
and is a windowed pocket which can be used to describe the function of a particular
stage. A section of the System Program Guide can be cut out and installed in this slot.
6.1.2.
Target Temp
The target temp is the temperature that the system is attempting to maintain. The default
display shows the current system target temperature under
tt:
If you wish to change the
target temperature in a given room, wait until that room number is displayed, and then
press and hold the Target Temp up or down arrow keys to raise or lower the target temp
respectively. Hold the button down until the wanted target temp is displayed. After a few
moments the system will start its default display sequence and begin to operate the
selected room using its new target temp.
6.1.3.
Timer Runtime Percentage
The Runtime Percentage is the percentage of the Timer Period that any stage which
operates off the room timer will run. The timer in any given room cannot be on for less
than about 25 seconds. The default display shows the current runtime percentage under
t%
. If you wish to change the runtime percentage in a given room, wait until that room
number is displayed, and then press and hold the Percent Run up or down arrow keys
until the new percentage is shown in the right hand display. After a few moments the
system will start its default display sequence and begin to operate the selected room
using its new runtime percentage.
6.1.4.
Special Functions
6.1.4.1.
Locking the Keypad
A means is provided for the operator to lock the face pad on the System 2000.
This is useful to prevent others from changing the system setup, as well as to
help prevent accidentally altering the state of the machine. The system is
locked by pressing the
Change Setting
up and down arrows simultaneously and
holding them until the word
locked
appears in the facepad. The system is
