Desa RCLP50V owner manual Continued, Propane Construction Heater, Service Procedures, Ignitor

PROPANE CONSTRUCTION HEATER

SERVICE

PROCEDURES

Continued

FAN

1.Remove three screws that attach fan guard to heater shell.

2.Remove motor and fan guard from heater shell (see Figure 11).

3.Use pliers to remove the fan nut from front of motor shaft (see Figure 12).

4a. If replacing fan, remove old fan and discard. Go to step 7 below.

Fan Nut

Figure 12 - Removing Fan Nut from Motor Shaft

WARNING: Make sure heater is disconnected from propane supply. Heater could ignite caus- ing severe burns.

8.Test for spark. Push piezo ignitor but- ton and watch for spark between igni- tor electrode and target plate.

9.Place motor and fan guard into rear of heater shell (see Motor, page 7, steps 9 and 10).

4b. If cleaning fan, remove fan. Be careful not to damage the fan blade pitch.

5.Clean fan using soft cloth moistened with kerosene or solvent.

6.Dry fan thoroughly.

7.Place fan onto motor shaft. IMPORTANT: When placing fan onto motor shaft, make sure part number stamped on fan is facing motor.

8.Attach fan nut to end of motor shaft. Tighten fan nut firmly.

9.Place motor and fan guard into rear of heater shell. Make sure power cord is properly located (see Figure 13).

10.Insert three screws through heater shell and into fan guard. Tighten screws firmly.

Figure 11 - Removing Motor and Fan Guard from Heater

Figure 13 - Replacing Motor and Fan Guard into Heater

IGNITOR

1.Remove motor and fan guard from heater (see Motor, page 7, steps 1 through 5).

2.Remove black ignitor wire from piezo ignitor. Access ignitor wire through un- derside of heater base (see Figure 14). Push wire up through bushing in heater shell.

3.Remove ignitor mounting screw from rear head using nut-driver or standard screwdriver (see Figure 15).

4.Remove ignitor from rear head.

5.Install new ignitor. Attach ignitor to rear head with ignitor mounting screw.

6.Run ignitor wire from new ignitor through bushing in heater shell. Attach ignitor wire to piezo ignitor.

7.Set gap between ignitor electrode and target plate to 4.3 mm (.17 in) (see Fig- ure 16).

	Piezo
	Ignitor
Ignitor Wire	Bushing

Underside of Heater Base

Figure 14 - Removing Ignitor Wire from Piezo Ignitor

Rear

Head

Ignitor

Ignitor

Mounting

Screw

Figure 15 - Removing Ignitor Mounting Screw and Ignitor

Target Plate

Gap

Area

Ignitor

Electrode

Figure 16 - Clearance between Ignitor Electrode and Target Plate

8 103856