York YCAL0043E Series, Установка, эксплуатация и обслуживание

Страница: 85 / 184

YORK INTERNATIONAL
85
FORM 150.62-NM7 (103)
SETPOINT KEY MODE LOW LIMIT HIGH LIMIT DEFAULT
LEAVING CHILLED LIQUID SETPOINT
WATER COOLING
40.0°F **70.0°F 44.0°F
4.4°C 21.1°C 6.7°C
GLYCOL COOLING
*10.0°F **70.0°F 44.0°F
-12.2°C 21.1°C 6.7°C
LEAVING CHILLED LIQUID
—
1.5°F 2.5°F 2.0°F
CONTROL RANGE 0.8
°C 1.4°C 1.1°C
RETURNED CHILLED LIQUID SETPOINT
WATER COOLING 40.0°F 70.0°F 44.0°F
4.4°C 21.1°C 6.7°C
GLYCOL COOLING
10.0°F 70.0°F 44.0°F
-12.2°C 21.1°C 6.7°C
RETURN CHILLED LIQUID
—
4.0°F 20.0°F 10.0°F
CONTROL RANGE 2.2°C 11.1°C 5.6°C
MAX EMS-PWM REMOTE
—
2°F 40°F 20°F
TEMPERATURE RESET 1.0°C 22.0°C 11.0°C
* Refer to Engineering Guide for operation below 30°F (-1.1°C). Alternate thermal ex pan sion valves must be used
below 30°F (-1.1°C).
* When using glycol, Leaving Chilled Liquid Setpoint should not be set below 20°F (-6.7°C).
** Do not exceed 55°F (12.8°C) setpoint before contacting the nearest YORK Offi ce for application
guidelines.
TABLE 19 – COOLING SETPOINTS, PROGRAMMABLE LIMITS AND DEFAULTS
2
box. The op er a tion is then repeated if nec es sary. This
pro cess may be fol lowed until the hour, minutes, and
me rid i an (AM or PM) of both the START and STOP
points are set. After changing the me rid i an of the stop
time, press ing the ENTER/ADV key will advance the
sched ule to the next day.
Whenever the daily schedule is
changed for Mon day, all the other
days will change to the new Mon day
sched ule. This means if the Mon day
times are not ap pli ca ble for the whole
week then the ex cep tion al days would
need to be re pro grammed to the de-
sired sched ule.
To page to a specific day press the SCHED ULE/
AD VANCE DAY
key. The start and stop time of each
day may be pro grammed differently using the UP and
DOWN arrow, and ENTER/ADV keys.
After SUN (Sunday) schedule appears on the dis play a
subsequent press of the SCHED ULE/AD VANCE DAY
key will display the Holiday sched ule. This is a two part
display. The fi rst reads:
The times may be set using the same procedure
as de scribed above for the days of the week. Af ter
chang ing the meridian of the stop time, press ing the
EN TER/ADV key will advance the sched ule to the
fol low ing dis play:
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 Hol i day, the
cursor is moved to the space fol low ing 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
nor mal daily schedule.
PROGRAM key
There are several operating parameters under the PRO-
GRAM key that are pro gram ma ble. These setpoints can
be changed by press ing the PRO GRAM key, and then
the ENTER/ADV key to enter
Pro gram Mode
. Con tinu ing
to press the EN TER/ADV key will display each op er -
at ing pa ram e ter. While a particular pa ram e ter is be ing
dis played, the UP and DOWN arrow keys can be used
H O L S T A R T = 0 0 : 0 0 A M
S T O P = 0 0 : 0 0 A M
S _ M T W T F S
H O L I D A Y N O T E D B Y *