3
240011511 REV. C [05/31/2017]
Information and specifications outlined in this manual in effect at the
time of printing of this manual. Manufacturer reserves the right to
discontinue, change specifications or system design at any time without
notice and without incurring any obligation, whatsoever.
1. General ............................................................................................................................... 4
2. Safety Symbols .................................................................................................................... 4
3. Introduction Models LRF/LRFV ................................................................................................ 4
4. Heat Loss ............................................................................................................................ 4
5. Locating the Unit ................................................................................................................. 5
6. Furnace Used In Conjunction With Air Conditioning .................................................................... 5
7. Air Filter .............................................................................................................................. 6
8. Ductwork ............................................................................................................................. 6
9. Combustion and Ventilation Air ............................................................................................... 6
10. Chimney Venting ................................................................................................................... 6
11. Barometric Damper Control .................................................................................................... 6
12. Optional Direct Venting .......................................................................................................... 6
13a. Fan Timer Board And Limit Control (LRF) [See Figure 2, page 15] ............................................. 6
13b. Fan Timer Board And Limit Control (LRFV) [See Figure 3, page 15] ............................................ 7
14. Electrical Connections ............................................................................................................ 7
15. Humidifier
............................................................................................................................ 7
16. Piping Installation ................................................................................................................. 7
17. Oil Filter .............................................................................................................................. 7
18. Oil Burner Nozzles ................................................................................................................. 8
19. Oil Burner Adjustment ........................................................................................................... 8
20. Burner Electrodes.................................................................................................................. 8
21. Burner Primary (Safety) Control .............................................................................................. 8
22a. Circulating Air Blower (LRF/LRFV) .......................................................................................... 8
22b. Circulating Air Blower (LRFV) ............................................................................................... 9
23. Maintenance And Service ....................................................................................................... 9
24. Operating Instructions (LRF) ..................................................................................................10
25. Operating Instructions (LRFV) ................................................................................................10
Appendix A - Checkout and Adjustments ................................................................................. 11
A.1 Oil Burner Air Adjustment ..............................................................................................13
A.2 Burner Electrodes .........................................................................................................13
A.3 Start Up ......................................................................................................................14
A.4 Final Checkout .............................................................................................................14
A.5 Blower Setup ...............................................................................................................16
Appendix B - Wiring Diagrams ................................................................................................. 18
Chimney Vent Furnace Wiring Diagram LRF/LRFV ...................................................................19
Direct Vent Furnace Wiring Diagram LRF/LRFV......................................................................20
Appendix C - Sequence of Operation and Troubleshooting ...................................................... 21
C.1 Troubleshooting ...........................................................................................................23
C.2 Preliminary Steps: ........................................................................................................23
C.3 Check Oil Primary Control ..............................................................................................23
Appendix D - Home Owners Reference Table ........................................................................... 27
Parts Listing: Chimney Vent Models LRF/LRFV ........................................................................ 28
Parts Listing: Direct Vent Models LRF/LRFV ............................................................................ 30
Parts Diagram ......................................................................................................................... 31
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