Reznor RA 140 Guide de dépannage télécharger pdf (Page 32)

Form I-RA/D 140/235 (Version A), Page 32

Cleaning Oil Pre-Heater System

(U.S. Patent No. 5,080,579)

WARNING: Turn off the electric power and allow the

pre-heater to cool before servicing.

1. Remove the Burner

• Locate the two yellow wires that go from the burner to the ignition

controller. Disconnect these wires at the terminals on the ignition

controller.

• Remove the three nuts and washers that retain the burner to the

heater. Slide the burner off the bolts and rotate.

Maintenance

Procedures

Continued

Reassembling the Fuel Line Assembly

1. To reassemble the Fuel Line Assembly

• Slide the fuel line assembly into the burner housing and the burner

tube.

2. Connect the fuel connection assembly to the fuel line assembly.

• Tighten the 5/16” inverted flare nut firmly. Then tighten the con-

nection nut. Do not move the escutcheon plate.

• Check the spacing between the oil nozzle and the end cone. Refer

to Electrode Adjustment” #4 (page 31).

3. Connect the eight wires in the fuel line assembly wiring bundle. Refer

to the wiring diagram in the Appendix of this manual or the wiring

diagram on the heater.

4. Push the air line hose out through the burner housing and reconnect it

to the air compressor.

5. Close the spark transformer cover and attach with the two screws. Be

certain transformer clips make contact with the electrodes.

NOTE: Once assembly is in place, verify that the nozzle, end cone, and

electrodes are correctly located.

Pre-Heater

Box

Pre-Heater

Controls

2. Remove the Pre-Heater from the Pre-Heater Box

• Remove the corner panel from the end of the box. The

pre-heater controls are visible.

• Disconnect the fuel lines at the inlet and outlet connec-

tions. NOTE: There will be oil in the lines.

• Disconnect wires to the temperature controls.

• Disconnect the heating element wires.

• Remove the screw that attaches the pre-heater front

support to the bottom of the box.

• Slide the cylindrical aluminium pre-heater out of the

box.

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Reznor RA 140 Guide de dépannage Page 32

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