6103910PROPANE CONSTRUCTION HEATERCANADIAN MODEL RCLP375BLP-PFA/P 024Figure 9 - Fan, Motor Shaft, and SetscrewLocationFigure 8 - Fan and Motor Turned AroundSERVICEPROCEDURECLEANING FANClean fan every 500 hours of operation or asneeded.1. Remove screws on side cover using5/16" nut-driver.2. Remove side cover.3. Detach the five motor wires from partsunder heater shell. Be sure to detachonly wires coming from motor.The five motor wires are:• white wire—to terminal board• black wire—to terminal board• blue wire—to thermal switch wire• orange wire—to solenoid valve• green wire—to grounding screwon shellFigure 7 - Location of Fan and MotorWARNING: Never serviceheater while it is plugged in, con-nected to propane supply, oper-ating, or hot. Severe burns andelectrical shock can occur.Figure 6 - Location of Motor WiresTerminalBoardGroundingScrewThermalSwitch WireSolenoidValveMotorWiresMountingBolts MotorMount4. Remove fan guard from rear of heater.5. Reach into rear of heater shell. Care-fully pull motor wires through hole inbottom of shell.Note: Pull wiresthrough hole one at a time.6. Remove nuts and mounting bolts hold-ing motor mount to shell. Use 3/8" nut-driver and 7/16" wrench.7. Carefully pull motor and fan out ofshell.IMPORTANT: Be careful not to dam-age fan. Do not set motor and fan downwith the weight resting on fan. Thiscould damage fan pitch.8. Turn motor and fan around. Place mo-tor and fan into shell backwards.Note:Motor will go into shell first (see Fig-ure 8).LP-PFA/P 026RearMountingHoleFirstHoleFAN CROSS SECTION LP-PFA/P 013Motor ShaftSetscrewHubFanFigure 10 - Fan Cross Section9. Line up rear mounting holes in shellwith first hole on each side of motormount (see Figure 8).Note: Whenholes are lined up, fan should be out-side of shell.10. Holding mounting bolt, carefully reachthrough fan blades into rear of heater.Be careful not to damage fan pitch. In-sert bolt through motor mount andshell. With free hand, attach nut fingertight. Repeat process for other mount-ing hole.11. Use 1/8" hex wrench to loosen setscrewwhich holds fan to motor shaft (see Fig-ure 9).12. Slip fan off motor shaft.13. Clean fan using soft cloth moistenedwith kerosene or solvent.14. Dry fan thoroughly.15. Replace fan on motor shaft. Make suresetscrew is touching back of flat sur-face on motor shaft (see Figure 10).16. Place setscrew on flat of shaft. Tightensetscrew firmly to 40-50 inch-pounds(5.6 N•m).17. Remove two nuts and bolts securingmotor mount to shell.18. Pull motor and fan from shell. Turnmotor and fan around. Carefully placeback in shell.Note: Fan will go intoshell first.19. Line up mounting holes in shell withholes on motor mount. Replace fourbolts through shell and motor mount.Insert bolts from outside of heater.Tighten nuts firmly.20. Route motor wires through hole in bot-tom of shell (see Figure 7).21. Connect motor wires as follows (seeFigure 6):• white wire—to terminal board.Note: Attach to empty connector onwhite wire side of terminal board.• black wire—to terminal board.Note: Attach to empty connector onblack wire side of terminal board.• blue wire—to thermal switch wire• orange wire—to solenoid valve• green wire—to grounding screw onshell22. Replace side cover.23. Replace fan guard.FAN LP-PFA/P 023AFanSetscrewMotor shaft