Table 17: Cooling Setpoint, Programmable Limits, And Defaults - York YLAA0041 Installation Operation & Maintenance

Form 150.72-ICOM6
Issue date: 12/19/2023

Table 17: Cooling Setpoint, Programmable Limits, and Defaults

Setpoint key
Leaving chilled liquid setpoint
Leaving chilled liquid control range
Returned chilled liquid setpoint
Return chilled liquid control range
Max EMS-PWM remote temperature reset
* Refer to the Engineering Guide. Form 150.72-EG6, for operation below 30°F (-1.1°C). Alternate thermal expansion valves must be used
below 30°F (-1.1°C).
* When using glycol, Leaving Chilled Liquid Setpoint must not be set below 10°F (-23.3°C).
** If the setpoint exceeds 55°F (12.8°C), contact the nearest Johnson Controls Office for application guidelines.
M O N S T A R T
S T O P
The line under the 0 is the cursor. If the value is in-
correct, it may be changed by using the ↑ (UP) and ↓
(DOWN) arrow keys until correct. Pressing the EN-
TER/ADV key will enter the times and then move the
cursor to the minute box. The operation is then repeat-
ed if necessary. This process may be followed until the
hour, minutes, and meridian (AM or PM) of both the
START and STOP points are set. After changing 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 exceptional
days would need to be reprogrammed to
the preferred schedule.
To page to a specific day, press the SCHEDULE/AD-
VANCE DAY key until the required day appears. The
start and stop time of each day may be programmed
differently using the ↑ (UP) and ↓ (DOWN) arrow, and
ENTER/ADV keys.
Johnson Controls
GLYCOL COOLING*
LOW TEMPERATURE
GLYCOL COOLING*
= 0 0 : 0 0 A M
= 0 0 : 0 0 A M
Mode Low limit
WATER COOLING
-12.2°C
GLYCOL COOLING
-13.1°C
—
WATER COOLING
-12.2°C
—
—
After SUN (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 display. The first reads:
H O L S T A R T
S T O P
The times may be set using the same procedure as de-
scribed above for the days of the week. After chang-
ing the meridian of the stop time, pressing the ENTER/
ADV key will advance the schedule to the following
display:
S __ M T
H O L I D A Y
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 * will appear in the space signifying that
day as a holiday. The * can be removed by pressing the
↓ (DOWN) arrow key.
The Holiday schedule must be programmed weekly –
once the Holiday schedule runs, it will revert to the
normal daily schedule.
Section 7: Unit controls
High limit Default
40.0°F **70.0°F 44.0°F
4.4°C 21.1°C 6.7°C
10.0°F **70.0°F 44.0°F
21.1°C 6.7°C
8.5°F 70.0°F 44.0°F
21.1°C 6.7°C
1.5°F 2.5°F 2.0°F
0.8°C 1.4°C 1.1°C
40.0°F 70.0°F 44.0°F
4.4°C 21.1°C 6.7°C
10.0°F 70.0°F 44.0°F
21.1°C 6.7°C
4.0°F 20.0°F 10.0°F
2.2°C 11.1°C 5.6°C
2°F 40°F 20°F
1.0°C 22.0°C 11.0°C
= 0 0 : 0 0
= 0 0 : 0 0
W T F S
N O T E D B Y
A M
A M 7
*
155