Roberts Gorden DAT100, DAT75, DAT90, DAT115 service manual Burner Compartment, Burner Injectors

DUALAIR® HEATING AND COOLING UNITS INSTALLATION OPERATION AND SERVICE MANUAL

16.2 Burner Compartment

The burner compartment is a sealed compartment. Following any work, re-seal the compartment with the gas pipe rubber seal fully in place and all screws fitted and tight.

Burner

compartment

cover

Flame probe

Viewing port

for flame probe

Remove flexible

air duct from spigot

Ignition electrode

Viewing port

for ignition electrode

Remove

access plate Rubber Seal

Remove screws and pull off burner cover

16.2.1 Burner Injectors

Ensure gas tight fitting of injectors.
Ensure correct alignment with burners.
Ensure all pipe joints are gas tight.	Manifold

Remove manifold

screws and pull

out manifold

Manifold

Unscrew

Injectors

Burner venturi

Marking

Burners Injectors

Burner screws

MODEL			75	90		100	115
Injector Quantity			12	14		15	17
			Natural	Gas (G20) and (G25)
Injector Size	mm dia		2.71	2.71		2.71	2.71
		in dia	0.1067	0.1067		0.1067	0.1067
Marking			36	36		36	36
RG P/N			91930036	91930036		91930036	91930036
			LPG Gas Propane	(G31) and LPG Gas	Butane (G30)
Injector Size	mm dia		1.51	1.51		1.51	1.51
		in dia	0.0594	0.0594		0.0594	0.0594
Marking			53	53		53	53
RG P/N			91930053	91930053		91930053	91930053

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