Desa PH70EDI, PH30EDI, PH150EDI, PH100EDI owner manual Nozzle

Nozzle
(150,000 BTU/Hr Model)	Combustion
1. Remove upper shell (see	Chamber
page 10).

2.Remove fan (see page 19).

3.Remove spark plug wire

	from spark plug.		Spark Plug
4.	Remove spark plug from	Burner Head	Wire
	burner head using 13/16"
	open-end wrench.
5.	Loosen flare nut using
	3/4" open-end wrench.
	Push fuel tube down.
6.	Remove air line hose from	Screw
	burner head.		Spark
7.	Remove three screws
			Plug
	using 5/16" nut-driver and
	remove burner head from
	combustion chamber.	Air Line Hose
8.	Place burner head into vise	Flare Nut
	and lightly tighten.	Fuel Tube

9.Carefully remove nozzle from burner head using 5/8" socket wrench (see

Figure 30). Figure 29 - Removing Burner Head, 150,000 BTU/Hr Model

10.Blow compressed air thru face of nozzle. This will free any dirt in nozzle area.

11.Inspect nozzle seal for damage.

12.Replace nozzle into burner

head and tighten firmly	Nozzle
(9.1-12.4 n-m).	Face	Nozzle
13. Attach burner head to
		Seal
combustion chamber.
14. Install spark plug in burner		Nozzle
head.
15. Attach spark plug wire to
spark plug.
16. Attach fuel tube and air
line hose to burner head.
Attach flare nut until nut
seats against fuel tube and		Burner
fitting. Tighten 1/4 turn
		Head
more using 3/4" open-end
wrench (11.3-14.7 n-m).

17.Replace fan (see page 19).

18.Replace fan guard and upper shell.

Figure 30 - Removing Nozzle, 150,000 BTU/Hr Model

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