JOHNSON CONTROLS
154
FORM 150.67-NM2
ISSUE DATE: 01/31/2019
SECTION 7 – UNIT CONTROL CENTER
“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 liq-
uid chiller, remove power and then remove the jumper
on J11-12. Reapply power to the micropanel and the
microprocessor will store the change.
Option 15 – 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 Op-
tions Key, but is only programmable in Service Mode.
Incorrect programming may cause dam-
age to compressors.
Option 16 – Expansion Valve Type:
E X P A N S I O N V A L V E T Y P E
T H E R M O S T A T I C
Expansion valve type, thermostatic or electronic
may be selected under Service Mode. Expansion valve
type is displayed under the Options key, but is only
programmable in Service Mode. YCAL 0019 – 0066
chillers will typically always be equipped with ther-
mostaic expansion valves.
Incorrect programming may cause dam-
age to compressors.
Also see the UNIT KEYS PROGRAMMING QUICK
REFERENCE LIST in Table 18 on page 156.
Option 17 – Flash Card Update:
F L A S H C A R D U P D A T E
D I S A B L E D
A Flash Card is used to input the operating program
into the chiller IPU. A Flash Card is used instead of
an EPROM. Normally, a Flash Card update is not re-
quired and the message above will be displayed.
If the operating software is to be updated, insert the
Flash Card into the Flash Card input port. Turn off the
unit switch and set the FLASH CARD UPDATE TO
“ENABLED” using the ↑ and ↓ keys.
F L A S H C A R D U P D A T E
E N A B L E D
Press the ENTER key and the following message will
be displayed until the update has been completed. The
keypad and display will not respond during the update.
DO NOT reset or power down the chiller until the up-
date is completed.
F L A S H C A R D U P D A T I N G
P L E A S E W A I T . . .
After the update is completed, an automatic reboot will
occur. If an error occurred, the following message will
appear with the error code and no reboot will occur:
F L A S H C A R D U P D A T E
E R R O R XXXXX
If the update resulted in an error, the original program
will still be active. When an error occurs, assure the
correct Flash Card was utilized. Incorrect chiller soft-
ware will cause an error. If this is not the case, the
Flash Card is most likely defective or the IPU and I/O
combo board is bad.
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