Roberts Gorden UHD[X][S][R] 75, UHD[X][S][R] 125 Burner Compartment, Burner Injectors

UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL

14.2 Burner Compartment

Burner

Compartment

Cover

Viewing port for flame probe

Flame Probe

Ignition Electrode

Remove flexible air duct from spigot

Remove screws and pull off burner cover

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.

NOTE: Separated combustion model shown.

14.2.1 Burner Injectors

Inshot

Burners

Orifices

Manifold

Mounting

Bracket Grommet

Manifold

Remove manifold

screws and pull

out manifold

Manifold

Unscrew

Orifices

Marking

Folded

Hem

Ensure gas tight fitting of injectors.

Ensure correct alignment with burners.

Ensure all pipe joints are gas tight.

MODEL	UHD[X][S][R] 75	UHD[X][S][R] 100	UHD[X][S][R] 125
Orifice Quantity	5	6	7
Natural Gas (G20)
Orifice Marking	49	46	46
P/N	91930049	91930046	91930046
Propane (G31)
Orifice Marking	1.15 mm	1.25 mm	1.25 mm
P/N	91930115	91930125	91930125

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