Unit controls – York YCAL0080SC User Manual

Page 82

Advertising
background image

YORK INTERNATIONAL

82

A B C D E F G H I J K L M N O P Q R S T

1 2 3 4 5 6 7 8 9 0 ° , . / % - ( ) * X

A B C D E F G H I J K L M N O P Q R S T

1 2 3 4 5 6 7 8 9 0 ° , . / % - ( ) * X

or

The chilled liquid is glycol. The Cooling Setpoint can be
programmed from 10°F to 70°F (-12.2°C to 21.1°C).

Option 5 – Ambient Control Type

The low ambient cutout is adjustable from 25°F to 60°F
(-3.9°C to 15.6°C).

or

The low ambient cutout is programmable down to 0°F
(-17.8°C). A low ambient kit MUST be installed for this
option to be chosen.

Option 6 – Local/Remote Control Type

When programmed for LOCAL, an ISN or RCC control
can be used to monitor only. The micro panel will oper-

ate on locally programmed values and ignore all com-
mands from the remote devices. The chiller will com-
municate and send data to the remote monitoring de-
vices.

or

This mode should be selected when an ISN or RCC
control is to be used to control the chiller. This mode will
allow the ISN to control the following items: Remote
Start/Stop, Cooling Setpoint, Load Limit, and History
Buffer Request. If the unit receives no valid ISN trans-
mission for 5 minutes, it will revert back to the locally
programmed values.

Option 7 – Unit Control Mode

Unit control is based on return chilled liquid temp. It can
only be selected on units that have 4 or 6 compressors
(dual system units).

or

Unit control is based on leaving chilled liquid temp.

Refer to section on Capacity Control for details on load-
ing and unloading sequences.

L O C A L / R E M O T E

M O D E

R E M O T E

A M B I E N T

C O N T R O L

S T A N D A R D

C H I L L E D

L I Q U I D

G L Y C O L

A M B I E N T

C O N T R O L

L O W

A M B I E N T

L O C A L

/

R E M O T E

M O D E L

L O C A L

C O N T R O L

M O D E

R E T U R N

L I Q U I D

C O N T R O L

M O D E

L E A V I N G

L I Q U I D

Unit Controls

Advertising
This manual is related to the following products: