Install Manual

TP-6906 6/1424 Section 1 Installation Instructions
Engine start connection for other transfer
switches or a remote start/stop switch
Note: Do not use the Kohlerr Model RRT transfer
switch with Model RCL generator sets.
Other Kohler transfer switches, inckuding Model RDT,
RSB, and Model K (MPACt) transfer switches can be
used with the Kohler generator sets covered in this
document. T hese transfer switches contain separate
ATS controls that do not communicate with the RDC2
controller.
These transfer switches use a set of contacts to signal
the engine/generator to start. When the normal source
fails and the generator set is in AUTO mode, the transfer
switch contacts close to signal the generator set to start
and run. After the normal source returns, the contacts
open to signal the generator set to stop.
The engine start terminals are usually located near the
transfer switch contactor with an engine start decal
identifying the terminals. Use the transfer switch wiring
diagrams to identify the engine start terminals prior to
making connections.
Connect the transfer switch engine-start contacts or a
remote manual engine-start switch to the engine start
terminals (3 and 4) on the generator set. Size the wire
according to the transfer switch connection and the
length of run. Use separate conduit for the DC
engine-start leads and the AC generator set load cables
and battery charger leads.
See Figure 1-12. Connect the engine start leads from
the transfer switch or remote start switch to terminals 3
and 4 on the terminal block. Route the engine start leads
through separate conduit from the AC power and load
leads.
Close the remote start contacts to start and run the
generator set. Open the contacts to signal the generator
set to stop. The generator set controller must be in
AUTO mode for remote start/stop.
tp6809
1. Customer connection terminal block. See Figure 1-10 for location. Check the decal on the generator set for terminal block connections.
2. Engine start leads 3 and 4. See the ATS manual for cable size specifications.
Generator Set
ATS
Models RDT
or RSB
2
1
RBUS
12VDC
Figure 1-12 Engine Start Connections with Transfer Switch Models RDT or RSB