AHRI K2WT, Installation, Operating And Service Instructions

Page: 67 / 164

67
107110-01 - 6/16
Figure 9.2: Piping Method #1 - Near Boiler Piping - Heating Only
IX. System Piping
(continued)
Flo
w
C
hec
k
H
ea
ting
C
irc
ul
ato
rs
O
pt
io
na
l
Fu
ll
Po
rt
Is
ola
tio
n
V
al
ves
O
pt
io
na
l
Fu
ll
Po
rt
Is
ola
tio
n
V
al
ves
To
S
yste
m
From Syste
m
Fil
l
V
al
ve
B
ac
kflo
w
Prevente
r
Exp
ansi
on
Ta
nk
A
ir S
ep
ara
tor
&
A
ir
V
ent
H
ea
der
Tempe
ra
tu
re
S
ens
or
(W
hen
U
se
d)
C
old
W
at
er
Li
ne
Y-S
tra
in
er
(R
eco
mmen
de
d)
To
S
yste
m
S
yste
m
Z
one
V
al
ves
H
ea
ting
S
yste
m
C
ircul
ator
B
oil
er
Pum
p D
ra
in
V
al
ve
Fu
ll P
or
t
Is
ola
tio
n
V
al
ves
U
ni
on
s Tee
&
Pl
ug
(R
eco
mmend
ed
F
or
F
utu
re
H
ea
t
Excha
ng
er S
er
vi
ce
)
Re
lie
f
V
al
ve
C
lo
se
N
ip
ple
(L
oca
te
H
ea
de
r
Se
ns
or
A
s
C
lose
A
s
Poss
ibl
e
To
D
ow
nst
re
am
Te
e)
H
yd
ra
ul
ic
S
ep
ara
tor
M
ay
Be
S
ubsti
tute
d
Fo
r T
ees