York Millennium YCAJ150, Installation Operation & Maintenance, Page: 37 / 116

FORM 150.65-NM4
37 YORK INTERNATIONAL
SWITCH 4
OPEN:
Chiller control will be from return water temperature.
CLOSED:
Chiller control will be from leaving water temperature.
SWITCH 5
OPEN:
Display messages will show units of measure in English
units (°F, PSI, etc.).
CLOSED:
Display messages will show units of measure in Metric
units (°C, kPa, etc.).
SWITCH 6
OPEN:
This MUST be selected for chillers with “4” or more
fans where each refrigerant system will have fans
of its own.
CLOSED:
This MUST be selected for “2” fan chillers where
fans are shared by both refrigerant circuits.
SWITCH 1
OPEN:
The chilled liquid temperature setpoint can only be pro-
grammed from 40 - 70°F* (4.4 - 21.1°C).*
CLOSED:
The chilled liquid temperature setpoint can be pro-
grammed from 15 - 70°F* (-9.4 - 21.1°C).*
SWITCH 2
OPEN:
The low ambient cut-out is fixed at 25°F (-3.9°C).
CLOSED:
The low ambient cut-out is programmable from 0 - 50°F
(-17.8 to 10°C). A low ambient kit MUST be installed if
the switch is placed in this position.
SWITCH 3
OPEN:
This mode allows a Remote Control Center or an ISN
panel to only view chiller operating conditions. It will not
allow changes to any chiller controls or setpoints.
CLOSED:
This mode should be selected in typical applications. It
will allow a Remote Control Center or an ISN panel to
not only view chiller operating conditions, but will also
allow the remote panel to change chiller controls and
setpoints.
C O M F O R T
C O O L I N G
R E T U R N W A T E R
C O N T R O L
B R I N E & C O O L I N G
D U T Y
L E A V I N G W A T E R
C O N T R O L
S T A N D A R D
A M B I E N T
E N G L I S H U N I T S
R E A D O U T
L O W A M B I E N T
C O N T R O L
M E T R I C U N I T S
R E A D O U T
L O C A L C O N T R O L
M O D E
S T A N D A R D C O N D E N S E R
F A N C O N T R O L
R E M O T E C O N T R O L
M O D E
S H A R E D C O N D E N S E R
F A N C O N T R O L
* Positioning of this switch also affects the range of adjustments on the Suction Pressure Cut-out (page 46) and the Low Leaving Water Temp.