JOHNSON CONTROLS
88
FORM 100.50-NOM6
ISSUE DATE: 8/07/2017
SECTION 5 – SEQUENCE OF OPERATION
After 5 minutes, Simplicity Elite control will reset
this communicated input back to “OFF” regardless of
the communicated status. To initiate another cycle the
communicated value would have to switch to the low
state “OFF” and then back to the high state “ON”.
DIRTY FILTER
A adjustable differential pressure switch can be a
added to the unit to monitor the filters and initiate an
alarm when the pressure drop across the filters become
greater than the setting of the switch. When the switch
closes, the alarm will be initiated.
In order to use this feature a pressure switch must be
installed and the feature enabled. To enable the dirty
filter feature,
“DIRTY FILTER SWITCH INSTALLED”
must be enabled using Parameter 51 under the PRO-
GRAM key of the Simplicity Elite control board or
under the EQUIPMENT INSTALLATION tab in the
Simplicity PC software package.
Sequence of Operation
The control monitors the voltage input at terminals
“FILT” at the P22 connector on the Simplicity Elite
control board. If the status goes high, 24 volt input, for
ten minutes the Simplicity Elite control will initiate an
Alarm 23 “Dirty Filter Switch Has Tripped” but the
operation of the unit will continue.
As soon as the 24-volt input is removed from the input
terminals, the alarm will turn off.
METRIC OPERATION
When this feature is turned ON all the temperature data
will be converted to metric.
“METRIC OPERATION”
- must be enabled using Pa-
rameter 57 under the PROGRAM key on the Simplic-
ity Elite control board.
INTELLI-START
This feature can be used to energize the heating or
cooling function of the unit to bring the temperature
of the space up to the
“CV OCCUPIED COOLING”
and
“CV OCCUPIED HEATING”
setpoints prior to
the start of the occupied period.
“INTELLI-START OPERATION ENABLE”
must be
programmed in order to use this feature under the SYS-
TEMS OPTIONS tab of the Simplicity PC software
package.
The following criteria must be met for Morning Warm
up operation:
•
Intelli-Start will only work on a Constant Volume
system using a space sensor.
•
Intelli-Start will only work when the internal
scheduling feature is used. It will not work using a
hard wired or communicated Occupied command.
• Intelli-Start will only function during the first oc
-
cupied period of each day.
Sequence of Operation
On the first day of heating or cooling operation the fol-
lowing applies:
•
Two hours prior to the start of the occupied period
the Simplicity Control will compare the space
temperature to the
“CV OCCUPIED COOLING”
or the
“CV OCCUPIED HEATING”
setpoints.
•
Heating operation
– If the space temperature is 1.5° F or more be-
low the
“CV OCCUPIED HEATING”
setpoint
the Simplicity Elite control will stage ON the heat
using the normal heating with space sensor logic.
– The Simplicity Elite control will record the
space temperature and how long it takes to bring
the space temperature to the
“CV OCCUPIED
HEATING”
setpoint.
– When the
“CV OCCUPIED HEATING”
setpoint is reached the Simplicity Elite control
will divide the elapsed time into 5-minute incre-
ments.
– The Simplicity Elite control will determine
how many 0.1° F the temperature was below the
“CV OCCUPIED HEATING”
setpoint.
– The Simplicity Elite control will then calculate
how many 0.1° F were satisfied per 5-minute in-
crement.
– This number will be recalculated each day.
– The Simplicity Elite control also records the
outdoor temperature when the above calculations
are made.
•
Cooling operation
