UHD L
OW
P
ROFILE
D
UCT
F
URNACE
I
NSTALLATION
O
PERATION
AND
S
ERVICE
M
ANUAL
36
14.2 Burner Compartment
14.2.1 Burner Injectors
Remo
v
e flexi
b
le
air d
u
ct from spigot
V
ie
w
ing port
for flame pro
b
e
Flame Pro
b
e
B
u
rner
Compartment
Co
v
er
Ignition Electrode
Remo
v
e scre
w
s and
p
u
ll off
bu
rner co
v
er
NOTE:
Separated com
bu
stion
model
sho
w
n.
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
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
Remo
v
e manifold
scre
w
s and p
u
ll
o
u
t manifold
Manifold
Inshot
B
u
rners
Orifices
Manifold
Mo
u
nting
Bracket
Grommet
Unscre
w
Orifices
Manifold
Marking
Folded
Hem
Ensure gas tight fitting
of injectors.
Ensure correct alignment
with burners.
Ensure all pipe joints are
gas tight.
