Option 4 - Chilled Liquid Cooling Type; Option 5 - Ambient Control Type; Option 6 - Local/Remote Control Type; Option 7 - Unit Control Mode - York YCWL0056SE Installation Operation & Maintenance

SECTION 7 – UNIT CONTROLS
Turning a system OFF with its system
switch allows a pumpdown to be per-
formed prior to shutdown.
Option 4 – 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)
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).
Option 5 – Ambient Control Type
A M B I E N T
S T A N D A R D
The low ambient cutout is adjustable from 25 °F to 60 °F
(-3.9 °C to 15.6 °C).
A M B I E N T
L O W A M B I E N T
The low ambient cutout is programmable down to 0
°F (-17.8 °C). On water cooled chillers, the low am-
bient control should be selected. The low ambient
cutout should be programmed for 0.00°F.
Option 6 – Local/Remote Control Type
L O C A L / R E M O T E
L O C A L
When programmed for LOCAL, an ISN or RCC con-
trol can be used to monitor only. The micro panel will
operate on locally programmed values and ignore all
commands from remote devices, or through the RS-485
inputs. The chiller will communicate and send data to
the remote monitoring devices.
140
L I Q U I D
or
L I Q U I D
C O N T R O L
or
C O N T R O L
M O D E L
L O C A L / R E M O T E
R E M O T E
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: Re-
mote Start/Stop, Cooling Setpoint, Load Limit, and
History Buffer Request. If the unit receives no valid
ISN transmission for 5 minutes, it will revert back to
the locally programmed values.
Option 7 – Unit Control Mode
C O N T R O L
R E T U R N
Unit control is based on return chilled liquid temp.
Return Chilled Liquid Control can only be selected on
units that have 4 to 6 compressors (dual system units).
C O N T R O L
L E A V I N G
Option 8 – Display Units
D I S P L A Y
I M P E R I A L
This mode displays system operating values in Impe-
rial units of °F or PSIG.
D I S P L A Y
This mode displays system operating values in Scien-
tific International Units of °C or barg.
Option 9 – Lead/Lag Type (two system units only)
L E A D / L A G
M A N U A L
SYS 1 selected as lead compressor. SYS 1 lead option
MUST be chosen if Hot Gas Bypass is installed.
FORM 201.26-NM1
ISSUE DATE: 1/19/2018
or
M O D E
M O D E
L I Q U I D
or
M O D E
L I Q U I D
U N I T S
or
U N I T S
S I
C O N T R O L
S Y S 1 L E A D
JOHNSON CONTROLS