Kohler KEP User Manual

TP-6745 7/1016 Section 1 Scheduled Maintenance
1.6.1 Service Disconnect Procedure
The service disconnect switch has two positions: AUTO
and SERVICE DISCONNECT. Follow the procedures in
this section carefully and observe the safety precautions
when performing a service disconnect before
maintenance or service. Watch the LED indicators on
the ATS controller to check the ATS position and source
status during the procedures.
1. Move the service disconnect control switch located
on the door of the transfer switch to the SERVICE
DISCONNECT position.
2. The engine start contacts close, signalling the
generator set to start.
3. When the emergency source is available, the ATS
transfers to the emergency source.
Note: The generator set is now providing power to
the load.
4. Check that the utility breaker is open and the
service disconnected pilot light is illuminated.
5. Disconnect emergency power from the load by
opening the generator set c ircuit breaker and
disabling the generator set as follows:
a. Move the generator set master switch to the
OFF/RESET position.
b. Disconnect power to the battery charger.
c. Remove the battery cables, negative (--) lead
first.
6. The service disconnected light will turn off at this
point.
7. Use a voltmeter to verify that power is
disconnected before servicing connected
equipment.
8. Attach a safety lockout padlock to the service
disconnect control switch to prevent unauthorized
change in operating condition and verify transfer
switch door is locked closed. If the door is not
locked, turn and remove the door key.
1.6.2 Service Reconnect Procedure
Hazardous voltage.
Will cause severe injury or death.
Close and lock the transfer switch
enclosure door before connecting
power sources.
DANGER
Service Reconnect Procedure (with Normal
source available)
Do not return the generator set to service until after the
ATS transfers the load to the normal source, as
described in the procedure below.
1. Close the breaker between the generator and the
emergency side of ATS.
2. Remove the padlock from the service disconnect
control switch and move the service disconnect
switch to the AUTO position.
3. Reset faults on the controller, if necessary.
4. The ATS will transfer to normal source and open
the engine start contacts.
5. Verify that the ATS controller display shows normal
source available and ATS in normal position. The
service disconnect light on the door should be off.
6. Return the generator set to service:
a. Reconnect the battery cables, negative lead
last.
b. Reconnect power to the battery charger.
c. Move the generator set master switch to the
AUTO position.

Kohler KEP Specifications

General

Brand	Kohler
Model	KEP
Category	Switch
Language	English