Service manual

COMBAT

UH UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL

14.2 Burner Compartment

14.2.1 Burner Injectors

Remove flexible

air duct from spigot.

Viewing Port

Flame Probe

Burner

Compartment

Cover

Ignition Electrode

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.

MODEL UH [A] [AS] 30 UH [A] [AS] 45 UH [A] [AS] 60 UH [A] [AS] 75 UH [A] [AS] 100 UH [A] [AS] 125

Orifice Quantity 2 3 4 5 6 7

Natural Gas (G20)

Orifice Marking4949494946 46

RG P/N 91930049 91930049 91930049 91930049 91930046 91930046

Propane (G31)

Orifice Marking 56 56 56 1.15 mm 1.25 mm 1.25 mm

RG P/N 91930056 91930056 91930056 91930115 91930125 91930125

Remove manifold

screws and pull

out manifold.

Manifold

Burners

Orifices

Manifold

Mounting

Bracket

Gromet

Unscrew

Orifices

Manifold

Marking

Ensure gas tight fitting of injectors.

Ensure correct alignment with burners.

Ensure all pipe joints are gas tight.