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SECTION 36 - SOFTWARE ENHANCEMENTS
FORM 160.54-M1
ISSUE DATE: 10/25/2019
JOHNSON CONTROLS
JCI COMPANY CONFIDENTIAL
36
Flash Memory card
Beginning August 2002, an enhanced flash memory
card will be supplied in new production YK chill-
ers. These cards will accommodate the YK Style “F”
chiller, scheduled for future release. The cards are also
available from the Baltimore Parts Distribution Center
as replacement parts. They supersede all previous ver-
sions of the same part number. The enhancements that
affect the OptiView Control Center are listed below.
The new versions are:
• NEMA 1-4 chillers (all compressors)
C.MLM.01.07.104 (031-01797-001)
• CE chillers (all compressors)
C.MLM.01.07.205 (031-01797-002)
In addition to being used on all YK Style F chiller/com-
pressor combinations, they are backward compatible to
all previous style YK chiller/compressor combinations.
The new card supersedes and will be supplied in place
of (P/N 031-02073-001) and (P/N 031-02073-002)
flash memory cards that were previously used for
P
compressor applications. Part number 031-01797-001
will be supplied in place of part numbers 031-02073-
001 and 031-01797-002 will be supplied in place of
031-02073-002.
The various YK chiller modification level (style)/
compressor combinations are equipped differently and
have different control requirements. Variables include
the following:
• High Speed Thrust Bearing proximity sensing –
Proximity probe or Limit Switch
• Flow Sensor – Paddle type (115 VAC Digital In-
put) or factory mounted thermal type sensor (+5
VDC Analog Input)
SI0034 - SOFTWARE ENHANCEMENTS EFFECTIVE AUGUST 2002
• Oil Heater Outputs – Either TB1-34 or TB1-64 on
I/O Board
• Refrigerant Level Control Default Period – Either
3.5 seconds or 10.0 seconds
• Oil – Variable Speed Pump-Pressure Setpoint not
Achieved safety Shutdown Threshold – 25 psid
or 35 psid
Flash memory card version C.MLM.01.07.xxx and
later are applicable and backward compatible to all
YK chiller/compressor combinations. They contain all
control variables for all combinations. For correct con-
trol, the chiller mod level/compressor size combination
must be entered (using SERVICE
access level) using
the CHILLER MOD SETPOINT key on the OPERA-
TIONS screen. The selections are as follows: (Default
is Mod F – GH Compr)
• Mod F – GH Compr
• Mod F – J Compr
• Mod F – P, Q Compr
• Mod CDE – GHJ Compr
• Mod E – P Compr
Once the appropriate chiller/compressor combination
is entered, the program automatically bundles the func-
tionality and control per the following table:
