Kohler KG80 Maintenance Manual page 23

5.1.1.1 Fuel Conversion Connections
For KG80–KG125, KG80R–KG125R (Kohler Engines KG6208TSD and KG6208THD), use the following:
See Figure 4 and Figure 5.
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).
Auto Changeover Natural Gas/LPG Vapor Operation

Connect the white fuel connector (P8 to J8)

Connect the black fuel connectors together in series (P7 to J7, P7A to J7A).

Connect 49 to 49B (QCON10).

Connect 49B to LFP3, Normally Open terminal.

Connect LP1 to LFP3, Common Terminal.

Connect 49A to LFP2, Normally Closed terminal.

Connect N17 to N17B (QCON9).

Connect N17B and N17A to LFP2 Common terminal.

Connect the UL fuel blocking valve (J30).
Harness
White Connector (P8)
N17
49
49a
Black Connector (P7)
63
N16
White Connector (P30)
49B
LP1
N17A
N17B
Figure 4 Gaseous Fuel Electrical Connections, KG80–KG1250/KG80R–KG125R
TP-7173 10/20
Natural Gas
NG fuel valve (J8)
not used
not used
not used
not used
LFP1- NC, Optional alarm
LFP1- COM, Optional alarm
Optional blocking fuel valve for UL requirements
not used, Auto Changeover Only
not used, Auto Changeover Only
not used, Auto Changeover Only
not used, Auto Changeover Only
LPG Vapor
not used
49 (QCON 10)
N17 (QCON 9)
not used
LPG fuel valve (J7)
Auto Changeover
NG fuel valve (J8)
N17B (QCON 9)
49B (QCON 10)
LFP2-NC
LPG fuel valve (J7)
LFP1-NC
LFP1-COM
Required blocking fuel valve for UL
requirements
49 (QCON 10), LFP3 (NO)
LFP3-COM
LFP2-COM
N17 (QCON 9), LFP2-COM
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