York YLUA0248 Series Installation Operation & Maintenance page 120

SECTION 7 – UNIT CONTROLS
Option 9 – Manual Override Mode
M A N U A L O V E R R I D E
D I S A B L E D
This option allows overriding of the daily schedule that
is programmed. MANUAL OVERRIDE MODE – DIS-
ABLED indicates that override mode has no effect.
M A N U A L O V E R R I D E
E N A B L E D
Manual Override Mode is enabled. This is a service
function and when enabled, will allow the unit to start
when shut down on the daily schedule. It will auto-
matically be disabled after 30 minutes.
Option 10 – Current Feedback Options Installed
C U R R E N T
N O N E
This mode should be selected when the panel is not
equipped with current sensing capability.
C U R R E N T
O N E P E R
This mode should be selected when an optional module
is installed to allow combined current monitoring of all
systems by sensing current on the incoming line. Cur-
rent input is to J7-4 to J7-12 of the micro.
C U R R E N T
O N E P E R
This mode should be selected when an optional mod-
ule is installed to allow individual current monitoring
of each system. SYS 1 input is to J7-4 to J7-12 of the
micro. SYS 2 input is to J9-4 to J9-12 of the micro.
Option 11 – Power Fail Restart
P O W E R F A I L
A U T O M A T I C
Unit auto restarts after a power failure.
120
M O D E
or
M O D E
F E E D B A C K
or
F E E D B A C K
U N I T
or
F E E D B A C K
S Y S T E M
R E S T A R T
P O W E R F A I L
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
D I S A B L E D
SOFT START "DISABLED" MUST be selected on
all units.
This message may not be viewable on non-Europe-
an units.
Option 13 – Unit Type
U N I T
C O N D E N S I N G
The UNIT TYPE message cannot be modified under
the unit keys.
"CONDENSING UNIT" must be
displayed, or damage to compres-
sors or other components will occur
if operated in the HEAT PUMP or
LIQUID CHILLER modes.
If unit type needs to be changed to make the unit a
condensing unit, add a jumper between J11-7 and J11-
12, of the microboard and reapply power to the micro-
panel.
Option 14 – Refrigerant Type
R E F R I G E R A N T
R - 4 1 0 A
Refrigerant type R-407C or R410A may be selected
under Service Mode. Refrigerant type is displayed un-
der the Options Key, but is only programmable in Ser-
vice Mode.
Incorrect programming may cause
damage to compressors. R-410A
MUST be programmed.
FORM 150.73-NM2
ISSUE DATE: 09/07/2020
R E S T A R T
S T A R T
T Y P E
U N I T
T Y P E
JOHNSON CONTROLS