Kohler Decision-Maker 3000 User Manual

91Section 5 Decision-Makerr 550 ControllerTP-6356 4/12
Status Event
or Fault
User-Defined
Settings
Time
Delay
(sec.)
Inhibit
Time
Delay
(sec.)
Default
Selection
Range Setting
Relay
Driver
Output
(RDO)
Digital Display
Refer
to
Menu
Voltage Lower
(see D18)
—
Voltage Raise
(see D19)
—
Weak Battery 10 WEAK
BATTERY
60% of
nominal
2
* All models, except Waukesha-powered models. ** NFPA applications
[ Non-paralleling applications [[ DDC/MTU engine with MDEC/ADEC
] Waukesha-powered models ]] FAA only
w Paralleling applications
5.4 Coolant Temperature Sensor
Service Kits
GM31990 and GM31991
(20--2000 kW with Controllers and
Non-ECM Engines)
Adapted from Service Bulletin SB-643.
5.4.1 Introduction
Replacing the coolant temperature sensor on a
generator set with a controller and a non-ECM engine
requires controller application software version 2.21 or
higher.
The new sensor offers greater reliability with a different
sensing range requiring the software upgrade. See
Figure 5-9 for the coolant temperature sensor
illustration and Figure 5-10 for coolant temperature
sensor identification.
Note: If controller application software version 2.21 or
higher is loaded for any reason and the coolant
temperature sensor is NOT replaced, the user
must change the temperature sensor selection in
Menu 20, Factory Setup. Failure to change the
temperature sensor selection will cause the
controller to sense a higher than actual coolant
temperature and may cause nuisance high
coolant temperature shutdown faults.
GM16787
Sensor
Markings
Figure 5-9 Coolant Temperature Sensor and
Reducer Bushing (if equipped), Typical
Note: Failure to upgrade to the new software, after
changing the coolant temperature sensor, will
cause the controller to sense a lower than actual
coolant temperature. These lower temperature
readings may prevent a fault shutdown during an
actual high coolant temperature condition.
5.4.2 Items Needed for Software
Upgrade
The following items are needed to complete the
software upgrade. In order to expedite the upgrade
process, it is recommended to download the files on
your PC before installing the kit. Use program loader
and access TechTools to download the files.
D Generator Set Operation Manual and Engine
Operation Manual
D Personal Computer
(see Program Loader for requirements)
D Null modem RS-232 cable with a 9-pin male plug
on the controller end
D Program Loader Software
D Application Code Software
Sensor Service
Kit Part Number
Sensor P/N
(showninMenu20)
Sensor
Thread
Sensor
Version
Sensor Manufacturer
and Markings on Hex
Sensor
Voltage Range
— GM16787* 1/2-14 NPT Old Kavilco3.2--4.4HIGH 0.5--4.5
—
GM17362[ 1/2-14 NPT]
Old Kavilco3.2--4.4HIGH 0.5--4.5
GM31990 GM31045-1 1/2-14 NPT New Airpax 5024--0443 0.2--1.5
GM31991 GM31045-2 M18-1.50 New Airpax 5024--0468 0.2--1.5
* Replace GM16787 with GM31045-1.
[ Replace GM17362 with GM31045-2 and discard metric reducer bushing.
] Long sensor tip, 41.2 mm (1.62 in.). Required with metric reducing bushing.
Figure 5-10 Coolant Temperature Sensors Identification

Kohler Decision-Maker 3000 Specifications

General

Brand	Kohler
Model	Decision-Maker 3000
Category	Controller
Language	English