YORK INTERNATIONAL
28
SWITCH 1
OPEN:
The chilled liquid temperature setpoint can only be pro-
grammed from 40-70°F.*
CLOSED:
The chilled liquid temperature setpoint can be pro-
grammed from 10-70°F. *
SWITCH 2
OPEN:
The low ambient cut-out is fixed at 25°F.
CLOSED:
The low ambient cut-out is programmable from 0-50°F.
A low ambient kit
MUST
be installed if the switch is
placed in this position.
SWITCH 3
OPEN:
DO NOT USE this mode at present.
CLOSED:
This should be selected in all applications, otherwise
printer communication problems may result. This mode
will also be necessary to allow operation of options to
be developed in the future.
SWITCH 4
OPEN:
Chiller control will be from return water temperature.
CLOSED:
Chiller control will be from leaving water temperature.
This
MUST
be selected.
SWITCH 5
OPEN:
Display messages will show units of measure in En-
glish 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.
C O M F O R T
C O O L I N G
B R I N E
&
P R O C E S S
D U T Y
S T A N D A R D
A M B I E N T
L O W
A M B I E N T
C O N T R O L
L O C A L
C O N T R O L
M O D E
R E M O T E
C O N T R O L
M O D E
R E T U R N
W A T E R
C O N T R O L
L E A V I N G
W A T E R
C O N T R O L
E N G L I S H
U N I T S
R E A D O U T
M E T R I C
U N I T S
R E A D O U T
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
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 of the Suction Pressure Cut-out (page 37) and the Low Leaving Water Temp
Cut-out (page 36).