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SECTION 33 - SYSTEM CALIBRATION, SERVICE SETPOINTS, AND RESET PROCEDURES
• High Speed Thrust Bearing proximity sensing
– Proximity probe input at Microboard J8-15 or
Limit Switch input at I/O Board TB3-81.
• Flow Sensor – Paddle type or Factory Mounted
Thermal Type. The paddle type applies 115 VAC
to the I/O Board Digital inputs TB4-12 (evapora-
tor) and TB4-11 (condenser). The factory mount-
ed thermal type (available with style F chillers),
applies +5 VDC to the microboard Analog In-
puts at J7-14 (evaporator) and J7-16 (condenser).
Flash memory card version C.MLM.01.07.xxx
and C.MLM.01.07A.xxx automatically selects the
Flow Sensor input, either Analog or Digital per
the Chiller Style/Compressor setpoint selection.
Flash memory card version C.MLM.01.08.xxx
(and later), allows the use of either the Thermal
type (Analog) or Paddle-type (Digital) flow sen-
sors in the style F chillers. With these versions, the
actual Flow Sensor type present must be entered
using the Flow Switch setpoint.
• 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 – Ei-
ther 25 psid or 35 psid.
TABLE 27 - FLASH MEMORY CARD VERSION C.MLM.01.07.XXX AND C.MLM.01.07A.XXX
CHILLER STYLE/
COMPRESSOR
"Style CDE/GHJ Compr"
"Style E/P Compr"
"Style F/GH Compr"
"Style F/J Compr"
"Style F/P, Compr"
NOTE: * Not applicable to Style C (and earlier) chillers.
290
OIL
PROXIMITY
HEATER
SENSE
OUTPUT*
Probe
TB1-34
Limit Switch
TB1-64
Limit Switch
TB1-64
Probe
TB1-64
Limit Switch
TB1-64
JCI COMPANY CONFIDENTIAL
Flash memory card version C.MLM.01.07.xxx and
later are applicable and backward compatible to all YK
chiller style/compressor combinations. They contain
all control variables for all combinations. For correct
chiller control, the correct CHILLER STYLE/COM-
PRESSOR combination must be entered. Once the ap-
plicable Chiller/Compressor combination is entered,
the program automatically bundles the functionality
and chiller control per the tables below.
For example, if equipped with C.MLM.01.08.105A
(or later):
Example 1
If the chiller is a style F and equipped with a J or H3
compressor, enter "Style F/J,H3 Compr". The program
will read the Proximity probe input at Microboard
J8-15, control the Oil Heater from TB1-64, make the
Level Control Period Default 3.5 seconds, the Oil Pres-
sure safety threshold below is 35 psid and will read
the Flow Sensor inputs at either I/O Board TB4-11/12
or Microboard J7-14/16 as programmed with the Flow
Switch setpoint.
Example 2
If the chiller is a style E and equipped with a P com-
pressor, enter "Style E/P Compr". The program then
reads the Proximity Limit Switch at I/O Board TB3-81,
controls the Oil Heater from TB1-64, makes the Level
Control Period Default 10.0 seconds, the Oil Pressure
safety threshold below would be 25 psid and reads the
Flow Sensor input at I/O Board TB4-11/12.
LEVEL
CONTROL
FLOW
PERIOD
SWITCH
DEFAULT
Digital
3.5 sec
(Paddle Type)
Digital
10.0 sec
(Paddle Type)
Analog
3.5 sec
(Thermal Type)
Analog
3.5 sec
(Thermal Type)
Analog
10.0 sec
(Thermal Type)
FORM 160.54-M1
ISSUE DATE: 10/25/2019
OIL-VARIABLE SPEED PUMP
PRESSURE SETPOINT NOT
ACHIEVED THRESHOLD*
35 psid
25 psid
35 psid
35 psid
25 psid
JOHNSON CONTROLS
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