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FORM 160.87-OM1
ISSUE DATE: 8/24/2018
17. Power up the panel with the rocker switch in the
OFF position.
18. Enter the Sales Order data either manually or
using the YMSO utility program then enter the
setpoint and configuration data.
Program Card Service Replacement
Since one YK-EP SD Program card can be used to re-
program other YK-EP chillers, it is not necessary for
an individual Service technician to have more than one
YK Program card. Program cards can be shared among
Service technicians where appropriate.
However, since chiller operating programs are occa-
sionally revised, the Service technician could have a
Program card that does not contain the latest program.
Program cards (031-03601-002) for YK-EP chillers
are available from the Baltimore Parts Distribution
Center (PDC). The card received from the PDC is pro-
grammed with the latest version of the chiller operating
program. Program cards can be re-programmed with
the latest program version.
DOWNLOADING A PROGRAM FROM A
PROGRAM CARD
There are 3 steps to the re-programming
process: Erase, Program and Veriflcation.
Once the re-programming process is initi-
ated, it automatically proceeds through
these steps to completion. It cannot be
manually terminated before completion.
Therefore, once the process is initiated,
the existing on-board program will be
erased and replaced by the program in
the Program card. Before proceeding,
be absolutely certain the Program card
is applicable to your chiller model. For
example, if your chiller is a YK-EP chiller,
the Program card used MUST be for a
YK-EP chiller. If a YS chiller program
is down-loaded into a YK-EP chiller, for
example, the chiller will be rendered in-
operable until this procedure is repeated
using the correct Program card!
JOHNSON CONTROLS
A label affixed to the Program card contains the card
version. The version is an alpha-numeric code that
identifies the chiller model applicability, language
package and program revision level. The version is as
follows:
Z.OPT.nn.nn.nnn
Language Package revision level
(00,01,etc)
Language
only,1=NEMA,2=CE,3=NEMA/CE)
Controls Revision Level (00, 01,
02, etc)
Chiller Model (01=YKEP)
OptiView™ Control Center
Commercial Chiller
Download the program as follows:
1. Remove power to OptiView™ Control Center.
2. Reposition Microboard DIP switch SW1 position
4 to ON.
3. Insert Program card into Microboard connector
J26.
4. Restore power to OptiView™ Control Center. A
white screen appears displaying "Flash Check-
sum Test" and the microboard 7-segment LEDs
(U25 and U26) displays "Ch". While this is dis-
played, the microboard is performing a checksum
test on the Program card. This assures the integri-
ty of the card before the download procedure can
begin. If the checksum test fails, the card is de-
fective or corrupted and the download procedure
cannot be performed. If the checksum test passes,
the OptiView™ Flash PROGRAMMER Screen is
displayed.
5. Press START key to start the downloading pro-
cess. A dialog box appears asking if you want to
"Erase Onboard Flash and Re-Program from Pc
Card?". Do not proceed until you understand the
above caution!
6. Use the ► key to scroll to YES.
SECTION 5 - SERVICE
Package
(0=English
5
215
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