Rheem Commercial Power Direct Vent Water heater - Manual (Page 7)

S Y S TE M S E N TI N E L
P O W E R
TH ER M O S TA T
IG N IT IO N
PI LO T VA LV E
M A IN V A LV E
E C O
®
Te
m
pe
ra
tu
re
&
P
re
ss
ur
e
Re
lie
f V
al
ve
To
G
as
Su
pp
ly
M
an
ua
l
G
as
Sh
ut
-O
ff
G
ro
un
d
Jo
in
t U
ni
on
Th
er
m
os
ta
t
Ca
p
G
as
V
al
ve
Ai
r G
ap
6
"
Se
di
m
en
t T
ra
p
Ho
t O
ut
le
t
Co
ld
W
at
er
In
le
t
Sh
ut
-O
ff
Va
lve
Re
fe
r t
o
Ve
nt
in
g
se
ct
io
n
on
p
ag
es
8
-1
1
in
th
is
m
an
ua
l.
NO
TE
S:
1.
) T
he
g
as
s
up
pl
y
pi
pi
ng
m
us
t b
e
ad
eq
ua
te
ly
su
pp
or
te
d
an
d
al
ig
ne
d
to
m
in
im
ize
lo
ad
s
(fo
rc
es
) o
n
th
e
wa
te
r h
ea
te
r’s
g
as
v
al
ve
an
d
bu
rn
er
s
ys
te
m
.
2.
) R
ef
er
to
lo
ca
l c
od
es
fo
r i
ns
ta
lla
tio
n
gu
id
e-
lin
es
fo
r t
he
T
he
rm
al
E
xp
an
sio
n
Ta
nk
(i
f
re
qu
ire
d)
.
Th
er
m
al
E
xp
an
sio
n
Ta
nk
(if
re
qu
ire
d)
7
installation
Fi
gu
re
4
. —
T
yp
ic
al
in
st
al
la
tio
n
D
ra
w
in
g.
Va
cuum Relief V
alve
(Not Supplied)
If required, install per local code
s
and valve manufacturer
’s
instructions.