Unit Keys - York YLPA 0115SE Installation, Operation And Maintenance Manual

FORM 150.68-ICOM1
ISSUE DATE: 10/15/2020

UNIT KEYS

OPTIONS Key
The OPTIONS key is used to scroll through the list of
options by repeatedly pressing the OPTIONS key. The
options may be changed using the UP arrow and DOWN
arrow keys. After an option is changed the ENTER/ADV
key must be pressed to enter the setting into memory.
The options are displayed in the following order:
DISPLAY LANGUAGE
ENGLISH
One of the display message languages maybe selected.
SYS 1 SWITCH ON
SYS 2 SWITCH ON
SYS 1 SWITCH OFF
SYS 2 SWITCH OFF
SYS 1 SWITCH ON
SYS 2 SWITCH OFF
SYS 1 SWITCH OFF
SYS 2 SWITCH ON
The System Switches can be set to allow both systems
to run, stop both systems or only one system to run.
CHILLED LIQUID
WATER
CHILLED LIQUID
GLYCOL
48
The liquid type can be set for water or glycol.
LOCAL / REMOTE MODE
LOCAL
LOCAL / REMOTE MODE
REMOTE
For correct operation only change Mode
Selection Local\Remote when unit switch
is set to OFF.
When programmed for LOCAL the next option message
allows the cooling or heating control mode to be selected.
If connected to the remote mode selection contact
is ignored. If connected to a remote communication
device it is used to monitor only. The microprocessor
will operate on locally programmed values and ignore
all commands from the remote devices. The unit will
communicate and send data a remote communication
device.
With REMOTE selected the remote mode selection
contact is operative unless a remote communication
device is connected and is sending other than zero for
the mode page. A remote communication device can be
used to control the following items: Remote Start/Stop,
Cooling Setpoint, Heating Setpoint, mode (heating or
cooling), Load Limit, and History Buffer Request (ISN
only).
The remote communication device can allow the unit to
use its own setpoints (cooling and heating) by sending
the appropriate code on the associated pages.
The remote communication device can send 0 (No Load
Limit), 1 (One Step Load Limit) or 2 (Two Steps of Load
Limit) on the load limit page.
If the unit receives no valid remote communication
device transmission for 5 minutes, it will revert back to
the locally programmed values.
CONTROL MODE
COOLING
CONTROL MODE
HEATING
If the LOCAL / REMOTE MODE option is set to
LOCAL this message will determine the mode of unit
operation.
JOHNSON CONTROLS