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16. LINT – (RED L.E.D.) This light emitting diode (L.E.D.) will indicate the status of the lint drawer. If the
drawer is closed, then the L.E.D. is ON.
17. R_HE Supply power for rear heat output.
18. F_HE Supply power for front heat output.
19. 24VIN – (RED L.E.D.) This L.E.D. will indicate the status of the control voltage. If the POWER ON
button is pressed (green button light is on), then the L.E.D. is ON.
20. SPR5 – (RED L.E.D.) This is for a spare input to be used with programmable outputs.
21. SPR4 – (RED L.E.D.) This is for a spare input to be used with programmable outputs.
22. SPR3 – (RED L.E.D.) This is for a spare input to be used with programmable outputs.
23. SPR2 – (RED L.E.D.) This is for a spare input to be used with programmable outputs.
24. SPR1 – (RED L.E.D.) This is for a spare input to be used with programmable outputs.
25. RVLV – (RED L.E.D.) This L.E.D. will indicate the status of the rear gas valve. If the rear gas valve is
open (ON), then the L.E.D. is ON.
26. FVLV – (RED L.E.D.) This L.E.D. will indicate the status of the front gas valve. If the front gas valve is
open (ON), then the L.E.D. is ON.
27. 24IN – (RED L.E.D.) This L.E.D. will indicate 24 VAC to the board.
28. +5V The 24 VAC regulated to power components on the board.
29. Mode (blinking) communication between display and input/output (I/O) boards.