Unit" Keys; Options Key - York YLAA0285SE Manual

Air-cooled scroll chillers with microchannel condenser coils style a (50 hz) 57 - 142 ton
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FORM 150.72-NM3 (1020)
ISSUE DATE 10/05/2020

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
displayed, 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 program-
mable under the SERVICE MODE
are noted in the details describing the
option.
Table 13 shows the programmable options. Following
are the displays in the order they appear:
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
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 & 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
C H I L L E D
G L Y C O L
The chilled liquid is glycol. The Cooling Setpoint can
be programmed from 10 °F to 70 °F (-12.2 °C to 21.1
°C).
SECTION 7 – UNIT CONTROLS
00070VIP
O N
O F F
O F F
O N
O F F
O F F
L I Q U I D
L I Q U I D
161
7

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