York YLAA0180 - Option 10- Current Feedback Options Installed; Option 11 - Power Fail Restart; Option 12 - Soft Start Enable;Disable; Option 13 - Unit Type

JOHNSON CONTROLS
135
SECTION 7 – UNIT CONTROLS
FORM 150.72-ICOM7
ISSUE DATE: 10/22/2020
7
Option 10– Current Feedback Options
Installed
C U R R E N T F E E D B A C K
N O N E
This mode should be selected when the panel is not
equipped with current sensing capability.
or
C U R R E N T F E E D B A C K
O N E P E R U N I T
This mode should be selected when an optional 2ACE
Module is installed to allow combined current moni-
toring of all systems by sensing current on the incom-
ing line.
or
C U R R E N T F E E D B A C K
O N E P E R S Y S T E M
This mode should be selected when an optional 2ACE
module is installed to allow individual current moni-
toring of each system. SYS 1 input is to J7 of the I/O.
SYS 2 input is to J8 of the I/O.
Option 11 – Power Fail Restart
P O W E R F A I L R E S T A R T
A U T O M A T I C
Chiller auto restarts after a power failure.
P O W E R F A I L R E S T A R T
M A N U A L
After a power failure, the UNIT switch must be tog-
gled before restart at the unit is allowed. NORMALLY
MANUAL RESTART should NOT BE SELECTED.
Option 12 – Soft Start Enable/Disable
S O F T S T A R T
D I S A B L E D
SOFT START “DISABLED” MUST be selected on all
chillers.
This message may not be viewable on non-European
chillers.
Option 13 – Unit Type
U N I T T Y P E
L I Q U I D C H I L L E R
The UNIT TYPE message cannot be modified under
the unit keys.
“Liquid CHILLER” must be displayed, or
damage to compressors or other compo-
nents will occur if operated in the HEAT
PUMP or CONDENSING UNIT modes.
If unit type needs to be changed to make the unit a
liquid chiller, remove power and then remove the
jumper between J11-7 and J11-12 on the I/O Board.
Reapply power to the micro panel and the micropro-
cessor will store the change.
Option 14 – Refrigerant Type
R E F R I G E R A N T T Y P E
R – 4 1 0 A
Refrigerant type R-410A must be selected under Ser-
vice Mode. Refrigerant type is displayed under the
OPTIONS key, but is only programmable in Service
Mode.
Incorrect programming may cause dam-
age to compressors.