RE
G
U
L
A
R
M
AI
NT
E
NANCE
P
R
E
V
E
N
T
IV
E
M
A
IN
T
E
NANCE
Ho
t
S
u
rfa
c
e
Igni
to
r
X
-
C
hec
k
for
c
ont
inui
ty
.
-
C
hec
k
that
F
lam
e
S
ens
or
is
s
tr
a
ight
.
-
C
lean
s
ens
or
w
it
h
fine
s
teel
w
ool
.
-
R
em
ov
e
fr
o
m
the
uni
t
and
c
lean
w
it
h
c
o
m
p
re
s
s
e
d
ai
r
fr
o
m
out
s
ide
m
a
tt
ing.
N
O
TE
:
It
is
re
c
om
m
e
nde
d
to
re
p
la
c
e
th
e
bur
ne
r
ga
sk
e
t
eac
h
ti
m
e
a
bur
ner
is
re
m
o
ved.
D
rai
n
L
in
es
X
-
S
w
it
c
h
to
dr
ai
n
and
m
a
k
e
s
u
re
w
a
te
r
flo
w
s
fr
eel
y
.
-
A
dj
us
t
b
lo
w
dow
n
ti
m
e
w
hen
requi
red.
C
hec
k
that
s
c
al
e
has
not
ac
c
u
m
u
la
te
d
abov
e
2
".
-
D
ri
ll
out
tank
ni
ppl
es
w
hen
requi
re
d
to
ens
ur
e
n
ippl
es
ar
e
not
bl
oc
k
e
d
w
it
h
s
c
a
le
.
-
C
lean
tank
w
hen
requi
red.
-
C
lean
tank
.
Fl
oa
t
C
ha
m
b
e
r
X
X
X
-
E
n
s
u
re
float
s
m
ov
e
fr
eel
y
.
-
C
lean
s
c
a
le
fr
om
float
c
h
am
ber
and
hos
e
c
onnec
ti
ng
to
hi
t.
Fi
ll
Li
ne
s
X
X
X
-
In
s
pec
t
for
leak
s
.
D
rai
n
L
in
es
XX
X
-
Ins
pec
t
for
leak
s
a
t
the
dr
ai
n
pum
p,
fil
l
c
u
p
and
float
c
ham
ber
.
Ga
s
V
e
n
ti
n
g
XX
X
-
Ins
pec
t
for
le
ak
s
.
E
n
s
u
re
te
rm
inal
c
a
p
is
c
le
ar
and
any
c
o
ndens
at
io
n
p
roduc
ed
flow
s
to
c
ondens
at
e
tr
aps
.
F
lue
te
m
p
s
houl
d
b
e
bet
w
een
350-
400º
F
.
Di
re
c
t
V
e
n
t
X
X
-
Ins
pec
t
for
le
ak
s
.
E
n
s
u
re
in
ta
k
e
te
rm
inal
is
c
lear
.
H
/L
S
ta
c
k
S
e
ns
or
XX
X
-
V
is
ual
c
hec
k
that
s
ens
or
is
in
ta
c
t,
w
ir
ed
and
at
ta
c
hed
to
th
e
e
x
haus
t.
-
R
epl
ac
e
hot
s
u
rf
ac
e
igni
to
r
and
flam
e
s
ens
or
w
it
h
repl
ac
em
ent
k
it
.
M
AND
AT
O
R
Y
M
AI
NT
E
NANC
E
S
C
H
E
D
UL
E
W
H
A
T
N
EED
S
T
O
B
E
D
O
N
E?
F
lam
e
S
en
so
r
X
X
X
X
Ta
nk
EN
D
O
F
SE
A
S
O
N
MI
D
30
D
A
Y
S
a
fte
r
in
iti
a
l
st
a
rt-u
p
PA
R
T
S
X
G
a
s
B
ur
ne
r
- 29 -
