98 TP-6694 6/22
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 45.
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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