Unit Keys - York YLAA Series Installation Operation & Maintenance

FORM 150.72-ICOM6
ISSUE DATE: 12/29/2017
Options Key
There are many user programmable options under the
OPTIONS key. The OPTIONS key is used to scroll
through the list of options by repeatedly pressing the
OPTIONS key. After the selected option has been dis-
played, the ↑ (UP) and ↓ (DOWN) arrow keys are then
used to change that particular option. After the option
is changed, the ENTER/ADV key must be pressed to
enter the data into memory.
Many of the OPTIONS displayed are
only programmable under the SERVICE
MODE and not under the OPTIONS key.
Options only programmable under the
SERVICE MODE are noted in the details
describing the option.
Figure 36 on page 136 shows the programmable op-
tions. Following are the displays in the order they ap-
pear:
Option 1 – Language
D I S P L A Y
E N G L I S H
English, Spanish, French, German, and Italian can be
programmed.
Option 2 – System Switches (two system
units only)
(Single System Display is similar)
S Y S 1 S W I T C H
S Y S 2 S W I T C H
JOHNSON CONTROLS

UNIT KEYS

OPTIONS
CLOCK
L A N G U A G E
O N
O N
00070VIP
This allows both systems to run.
or
S Y S 1 S W I T C H
S Y S 2 S W I T C H
This turns system 2 OFF.
S Y S 1 S W I T C H
S Y S 2 S W I T C H
This turns system 1 OFF.
or
S Y S 1 S W I T C H
S Y S 2 S W I T C H
This turns systems 1 and 2 OFF.
Turning a system OFF with its system
switch allows a pumpdown to be per-
formed prior to shutdown.
Option 3 – Chilled Liquid Cooling Type
C H I L L E D
W A T E R
The chilled liquid is water. The Cooling Setpoint can
be programmed from 40 °F to 70 °F (4.4 °C to 21.1 °C)
or
SECTION 7 – UNIT CONTROLS
O N
O F F
O F F
O N
O F F
O F F
L I Q U I D
131
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