8
1 Gas connections
Dual Fuel Supplemental Manual
1. Using the wire harness included in the ship loose kit, connect the 4-pin connector to the mating connector located on the
top panel of the boiler.
2. Connect the BROWN and ORANGE wires to the (lower) low gas pressure switch.
3. Connect the BLUE and ORANGE wires to the (upper) high gas pressure switch.
4. Insert a 7/8” bushing into the knockout opening nearest the proof of closure switch in the actuator assembly.
5. Feed the two (2) BROWN wires from the pressure switch harness through the bushing and attach the “C” and “NC”
terminals of the switch.
Wiring for the high and low gas pressure switches and proof of closure switch (reference FIG. 1-7)
Figure 1-7 High and Low Gas Pressure Switch Wire Harness
BR
T/BK
PROOF
OF
CLOSURE
SWITCH
LP
LGPS-LP
O
BL/BK
BR
O
HGPS-LP
CONNECT TO PLUG
ON OUTER TOP PANEL
BK
1 2
W
C
NC
NO
C
NC
NO
BUSHING
1. Wiring and conduit for the 120V power to the actuator is attached to the outer top panel of the boiler.
3. Check and trim (if necessary) the conduit used to route the power wires from the top panel of the unit to the actuator
assembly.
3. Attach the 90° conduit to the knockout opening nearest the power connections in the proof of closure actuator assembly.
4. Connect the BLACK wire to “1” and the WHITE wire to “2” as shown in FIG. 1-8.
5. Replace the metal access plate removed in Step #2 of the Assemble the High and Low Gas Pressure Switches Section.
Wiring for the proof of closure valve 120V power (reference FIG. 1-8)
Figure 1-8 Proof of Closure Valve Wire Harness
DIR #2000540659 00
BK
PROOF OF
CLOSURE
VALVE-LP
1 2
W
C
NC
NO
C
NC
NO
TOP PANEL
CONDUIT
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