Product Manual

TP-6946 3/16 63Section 7 Changing the Service Disconnect Position
7.2 Changing the Service
Disconnect Position
In some applications, it may be necessary to change the
service disconnect position on the transfer switch.
Example 1: If you update the controller firmware or
replace the controller on a unit that is equipped with an
original transformer assembly, GM69797-KA1 or
GM69797-KA2, you will need to change the service
disconnect position setting on the controller back to
Emergency. Use Kohlerr SiteTecht software to
change the service disconnect position setting on the
controller.
Example 2: If you install a transfer switch equipped with
a new transformer assembly in an application that
requires the original service disconnect to emergency
position, you will need to convert the transfer switch.
This could be the case when an older service-entrance
rated transfer switch is being replaced, or in any
application that was designed to use the service
disconnect to emergency operation. Conversion
includes changing the service disconnect position
setting on the controller and changing some
connections inside the ATS.
After Updating Firmware or Replacing the
Controller
If the controller firmware is updated or the controller is
replaced, check the transformer assembly installed on
the transfer switch and compare the illustrations
Figure 7-2. If the transfer switch is equipped with an
original transformer assembly (GM69797-KA1 or
GM69797-KA2), you will need to change the service
disconnect position setting on the controller. Use
Kohlerr SiteTecht software to change the Service
Disconnect position setting on the controller to
Source E. See the procedure in Section 7.2.1.
Converting a New ATS to the Service Disconnect
to Emergency Position
In some applications, the transfer switch may be
required to operate using the original Service
Disconnect to Emergency behavior. Transfer switches
using the new transformer assemblies and the Service
Disconnect to OFF position can be converted in the field
to the original behavior. The following changes are
required:
1. Use a laptop computer with Kohlerr SiteTecht
software to change the Service Disconnect
position setting from OFF to Source E. See the
procedure in Section 7.2.1.
Note: The distributor level password is required.
2. Disconnect the engine start bypass circuit using
the instructions that are given in this section. See
the procedure in Section 7.2.2.
3. Change connections for correct operation of the
Service Disconnected lamp. See the procedure in
Section 7.2.3.