JOHNSON CONTROLS
282
FORM 201.23-NM2
ISSUE DATE: 09/25/2020
SECTION 8 - MICROPANEL
S/N ENTRY UNIT S/N = YYYY XXX ZZZ
UNIT SERIAL NUMBER POS 8-10 = XXX
At this point, the letters entered for the YYYY and
XXX inputs should now appear in the top line of the
display and should match the first 7 characters of the
serial number on the unit Data Plate. The next three
digits of the serial number should now be keyed in.
Press the (ENTER) key to store the input. The full
serial number should now be displayed across the top
of the display and the cursor should disappear.
Press the STATUS key to go to the next STATUS dis-
play to determine if additional Status messages are pre-
venting the chiller from operating.
ENABLING OPTIMIZED HIGH IPLV MODE
When changing a Chiller Control Board, a Chiller
Control Board EPROM, or if a situation occurs where
a chiller is not programmed from the factory, the chill-
er will not be capable of operating High IPLV mode.
The serial number of the unit will first need to be pro-
grammed into the panel, if the Invalid Serial Number
display appears (see Page 292). The Invalid Serial
Number message will override the Optimized Effi-
ciency Disabled message. If the chiller was purchased
with the High IPLV Option and does not have the High
IPLV mode enabled, it will not prevent the chiller from
operating, but the chiller will only operate in the Stan-
dard IPLV mode. Additional STATUS messages can
be viewed by pressing the STATUS key repetitively to
enable the technician to view any other messages that
may be preventing the chiller from operating.
Changing the programming of this fea-
ture requires the date and time to be set
on the chiller prior to programming the
password. The password is also time sensi-
tive and must be used “immediately” when
it is received.
The STATUS display will inform the operator when
a High IPLV chiller is operating with the High IPLV
mode disabled by displaying the following STATUS
message:
UNIT WARING: OPTIMZED EFFICIENCY
DISABLED - CONTACT YORK REPRESENATIVE
If the message above appears, immediately contact
Johnson Controls Product Technical Support or John-
son Controls ES Commercial for a password to enable
the High IPLV mode. You will need to provide Johnson
Controls Product Technical Support or Johnson Con-
trols ES Commercial with the Unit Serial Number lo-
cated on the chiller nameplate. The date and time will
also need to be current on the chiller, and will need
to be provided to Johnson Controls Product Technical
Support or Johnson Controls ES Commercial. It is es-
sential Johnson Controls Product Technical Support
or, Johnson Controls ES Commercial is aware of the
“local” time to allow adjustments for time differences
from Eastern Standard Time.
After obtaining the password, the fol-
lowing steps will need to be carried out
“immediately” to input the serial number.
If the password is not immediately input,
the panel will not accept it.
To enable HIGH IPLV Mode, first press the SERVICE
key. The following message will appear:
SERVICE MODE XXXXX
PRESS ENTER KEY TO CONTINUE
Key in the 6 digit alphanumeric password provided by
Johnson Controls Technical Support or Johnson Con-
trols ES Commercial and press the (ENTER) key.
The following display will appear:
IPLV OPTIMZED EFFICIENCY CONTROL
◄ ► XXXXXXXXXXXXXXXXXXXXXXXXX
When the Optimized (High IPLV) is enabled, the dis-
play will indicate, “ENABLED”. When not enabled,
the display will indicate, “DISABLED”. Use the ◄
and ► (ARROW) keys to enable/disable and press the
(ENTER) key to store the selection.
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