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Demand Duo
™
H
-
Series Installation and Operation Manual
42
N
o
te
s:
•
In
st
al
la
tio
n
m
us
t co
nf
or
m
to
a
pp
lica
bl
e
co
de
a
nd
a
ll
re
qu
ire
m
en
ts
li
st
ed
in
t
he
in
st
al
la
tio
n
m
an
ua
l.
Ba
la
nc
in
g
va
lv
es
,
eq
ui
va
le
nt
p
ip
in
g,
p
re
ss
ure
g
ag
-
es
,
an
d
te
m
pe
ra
tu
re
g
ag
es
a
re
t
o
be
u
se
d
as
n
ece
ss
ar
y
to
e
ns
ure
p
ro
pe
r
flo
w
b
et
w
ee
n
un
its
.
•
C
on
de
n
sa
te
p
ip
in
g
sh
al
l b
e
C
PVC
o
r
PVC
m
at
er
ia
l a
nd
s
ha
ll
no
t b
e
sm
al
le
r
th
an
th
e
dra
in
co
nn
ect
io
n
on
t
he
a
pp
lia
nce
.
•
C
om
po
ne
nt
s
of
t
he
co
nd
en
sa
te
d
ra
in
ag
e
sh
al
l b
e
C
PV
C
o
r
PVC
ma
te
ria
l.
A
ll
co
m
po
ne
nt
s
sh
al
l b
e
se
le
ct
ed
f
or
th
e
pre
ss
ure
a
nd
t
e
m
pe
ra
tu
re
ra
tin
g
of
th
e
in
st
al
la
tio
n.
•
W
he
re
t
he
d
ra
in
p
ip
es
f
ro
m
m
ore
th
an
o
ne
u
ni
t
are
m
an
ifo
ld
ed
t
og
et
he
r
fo
r
co
nd
en
sa
te
d
ra
in
ag
e,
t
he
p
ip
e
or
tu
bi
ng
s
ha
ll
be
s
ize
d
in
a
cco
rd
an
ce
w
ith
an
a
pp
ro
ve
d
m
et
ho
d
as
d
ic
ta
te
d
by
lo
ca
l co
de
s.
•
C
on
de
n
sa
te
m
us
t
be
d
is
po
se
d
of
a
cco
rd
in
g
to
lo
ca
l co
de
s.
H
O
T
W
A
T
ER
SU
PPL
Y
L
IN
E
CO
ND
ENSAT
E
DR
AIN
LI
NE
PI
PE
EAC
H
T
&P
AN
D
PR
V
T
O
O
PEN
D
R
AI
N
BU
IL
D
IN
G
C
IR
C
U
LAT
IO
N
PU
MP
AN
D
H
O
T
W
A
T
ER
R
ET
U
R
N
L
IN
E
(O
PT
IO
N
AL
)
C
O
LD
W
A
T
ER
SU
PPL
Y
G
AS
SU
PP
LY
Ad
di
tio
na
l u
ni
ts
ca
n
be
in
st
al
le
d
as
il
lu
st
ra
te
d.
F
ig
ure
4
4