100 TP-6694 2/25
180-500 RZXB/REZXB/REZXC/RZXD/REZXD (PSI/ Doosan 11.1L, 14.6L, 18.3L, and 21.9L Engines)
Natural Gas with Additional Fuel Valve, Required for UL Approval
See Figure 50.
• Disconnect lead N5.
• Disconnect lead 65.
• Disconnect lead 65A.
• Disconnect lead 73B.
• Connect lead 70B2 to fuel valve 1 (FV1), red/black wire.
o For 250 – 500 kW (14.6 L – 22 L engines), connect lead 70B2 to fuel valve 1A (FV1A) and lead 70B2A to fuel
valve 1B (FV1B), red/black wires.
• Connect lead N6 to fuel valve 1 (FV1), red/white wire.
o For 250 – 500 kW (14.6 L – 22 L engines), connect lead N6 to fuel valve 1A (FV1A) and lead N11 to fuel valve
1B (FV1B), red/white wires.
• Connect lead N7 to fuel valve 1 (FV1), green wire.
o For 250 – 500 kW (14.6 L – 22 L engines), connect lead N7 to fuel valve 1A (FV1A) and lead N10 to fuel valve
1B (FV1B), green wires.
• Connect lead 73A to 73 to fuel valve 2 (FV2), red wire.
o For 300 – 500 kW (18.1 L – 22 L engines), connect lead 73A to 73C to fuel valve 2A (FV2A) and lead 73C1 to
fuel valve 2B (FV2B), red wires.
• Connect lead 70E to 70C to fuel valve 2 (FV2), red wire.
o For 300 – 500 kW (18.1 L – 22 L engines), connect lead 70E to 70C to fuel valve 2A (FV2A) and connect lead
70C1 to fuel valve 2B (FV2B), red wires.
• Connect lead N8 to N to fuel valve 2 (FV2), green wire.
o For 300 – 500 kW (18.1 L – 22 L engines), connect lead N8 to N12, connect lead N12 to fuel valve 2A (FV2A)
and N13 to fuel valve 2B (FV2B) green wires.
• Connect lead 63 to normally closed (NC), low fuel pressure sensor 1.
• Connect lead N3 to common (COM), low fuel pressure sensor 1.
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