Kohler APM402 User Manual

TP-6694 9/20 93
For KG150, KG180, and KG200 (Kohler Engines KG10V08T-6CGS and KG10V08T-6DGS), use the following:
To change the fuel type, change the wiring harness connections. The engine ECM has fuel tables and spark advance curves
programmed for both natural gas and LPG. Use the following fuel connection tables and wiring diagrams to determine the
applicable connections for your generator set model. Be sure to review the wiring diagram for special applications.
Note:
KG150 engines ordered for use with natural gas cannot be converted to operate with LPG fuel.
For Single Fuel Connections, use the following:
See Figure 37 and Figure 38.
Natural Gas Operation
 Disconnect the black fuel connector (J7).
 Disconnect 49 and N17.
 Connect the white fuel connector (J8).
 For UL applications, connect the optional UL fuel blocking valve (J30).
LPG Vapor Operation
 Disconnect the white fuel connector (J8).
 Connect the black fuel connector (J7).
 Connect 49 and N17.
 For UL applications, connect the optional UL fuel blocking valve (J30).
Harness
Natural Gas
LPG Vapor
White Connector (P8)
NG fuel valve (J8)
not used
N17
not used
49 (QCON 10)
49
not used
N17 (QCON 9)
49a
not used
not used
Black Connector (P7)
not used
LPG fuel valve (J7)
63
LFP1- NC, Optional alarm
N16
LFP1- COM, Optional alarm
White Connector (P30)
Optional blocking fuel valve for UL requirements
49B
not used, Auto Changeover Only
LP1
not used, Auto Changeover Only
N17A
not used, Auto Changeover Only
N17B
not used, Auto Changeover Only
Figure 40 Gaseous Fuel Electrical Connections, Single Fuel, , KG150, KG180, and KG200

Kohler APM402 Specifications

General

Brand	Kohler
Model	APM402
Category	Controller
Language	English