Installation Guide

TP-6906 4/1624 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, including Model RDT or

Model K (MPACt) transfer switches can be used with

the Kohler generator sets covered in this document.

These transfer s witches contain s eparate 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 s ource 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 r un. 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 switc h 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 c ontacts 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 se t for terminal block connections.

2. Engine start leads 3 and 4. See the ATS manual for cable size specifications.

Generator Set

ATS

(with engine

start contacts)

RBUS

12VDC

Figure 1-12 Engine Start Connections with Transfer Switch Models other than Model RXT