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44
JOHNSON CONTROLS
FORM 150.68-ICOM1
ISSUE DATE: 10/15/2020
The cursor will be under the 0. The time may be changed
by using the UP arrow and DOWN arrow keys. Pressing
the ENTER/ADV key will enter the time and then move
the cursor to the minute box. This process should be
repeated until the hour, minutes, and meridian (AM
or PM) of both the START and STOP times are set.
After setting the meridian of the stop time, pressing
the ENTER/ADV key will advance the schedule to the
next day.
Whenever the daily schedule is changed for
Monday, all the other days will change to
the new Monday schedule. This means if
the Monday times are not applicable for the
whole week, then the individual days would
need to be reprogrammed to the desired
schedule.
To page to a specific day press the SCHEDULE/
ADVANCE DAY key. The start and stop time of each
day may be programmed differently using the UP arrow
and DOWN arrow and ENTER/ADV keys.
After the Sunday schedule appears on the display a
subsequent press of the SCHEDULE/ADVANCE DAY
key will display the Holiday schedule. This is a two part
message. The first reads:
SUN START = 00:00AM
STOP = 00:00AM
The times may be set using the same procedure as
described above for the days of the week. After changing
the meridian of the stop time, pressing the ENTER/ADV
key will advance the schedule to the following display:
S M T W T F S
HOLIDAY NOTED BY *
The line below the empty space next to the S is the
cursor and will move to the next empty space when the
ENTER/ADV key is pressed. To set the Holiday, the
cursor is moved to the space following the day of the
week of the holiday and the UP arrow key is pressed.
An * (asterisk) will appear in the space signifying that
day as a holiday. The * (asterisk) can be removed by
pressing the DOWN arrow key.
The holiday schedule must be reprogrammed
after the holiday. Once the holiday schedule
runs it will revert to the normal daily
schedule.
With optional two speed fans
Pressing the ENTER/ADV key will advance the
schedule to the following display:
FAN ON 00:00AM
INHIBIT OFF 00:00AM
A time range can be set during which the fans will be
preventing from operating on the last stage, full speed,
to reduce unit noise. Fan inhibit is considered not
programmed when the times in the schedule are all zeros
(00:00 AM). Programming 12:00 AM in both the On and
OFF time means Fan Inhibit is in effect continuously.
The time may be changed by using the UP arrow and
DOWN arrow keys. Pressing the ENTER/ADV key will
enter the time and move the cursor to the minute box.
This process should be repeated until the hour, minutes
and meridian (AM or PM) of both the ON and OFF
times are set. After setting the meridian of the OFF time
pressing the ENTER/ADV key will enter the values.
PROGRAM Key
The PROGRAM key is used to set the programmable
cut-outs, timers and switching points. These parameters
can be changed by pressing the PROGRAM key, and
then the ENTER/ADV key to enter the program mode.
Continuing to press the ENTER/ADV key will display
each operating parameter. While a particular parameter
is being displayed, the UP arrow and DOWN arrow keys
can be used to change the value (Refer to Setpoint and
Cut-out Settings Section). After the value is changed,
the ENTER/ADV key must be pressed to enter the new
parameter into memory.
The programmable parameters are displayed in the
following order:
DISCHARGE PRESSURE
CUTOUT = XXXX PSIG
The discharge pressure cut-out is the pressure at which
the system will shutdown as monitored by the discharge
pressure transducer. This cut-out is backed-up by a
mechanical HP switch located in each refrigerant circuit.
SUCTION PRESS CUTOUT
COOLING= XXXX PSIG
Summary of Contents for YLPA 0115SE
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