Roberts Gorden UHD[X][S][R] 150 User Manual
Page 39
SECTION 14: R
EPLACEMENT
P
ARTS
33
14.2 Burner Compartment
14.2.1 Burner Injectors
MODEL
UHD[X][S][R]
150
UHD[X][S][R]
175
UHD[X][S][R]
200
UHD[X][S][R]
225
UHD[X][S][R]
250
UHD[X][S][R]
300
UHD[X][S][R]
350
UHD[X][S][R]
400
Orifice
Quantity
7
8
9
10
11
12
14
14
Natural Gas (G20)
Orifice
Marking
43
43
2.25 mm
2.25 mm
2.25 mm
40
40
40
P/N
91930043
91930043
91930225
91930225
91930225
91930040
91930040
91930040
Propane (G31)
Orifice
Marking
1.35 mm
1.35 mm
54
54
54
1.45 mm
53
53
P/N
91930135
91930135
91930054
91930054
91930054
91930145
91930053
91930053
Remove flexible
air duct from spigot
Remove
access plate
Remove screws and
pull off burner
compartment cover
Viewing port
for flame probe
Viewing port
for ignition electrode
Flame Probe
Burner
Compartment
Cover
Rubber Seal
Ignition Electrode
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.
Remove manifold
screws and pull
out manifold
Manifold
Inshot
Burners
Injectors
Burner
Screws
Burner
venturi
Unscrew
Orfices
Manifold
Marking
Folded
Hem
Ensure gas tight fitting of injectors.
Ensure correct alignment with burners.
Ensure all pipe joints are gas tight.