26
Primary Piping
Recommended placement
of expansion tank and
make up water supply
.
To
the System
From the
System
12"
Max.
1
2
3
1
2
3
4
2
2
2
1
2
3
Primary
Heating
Primary
T
emperature/Pressure
Domestic
Heating
Tr
iangleTube
Hot Water Specialists
P
u
sh
B
u
tt
on
To
R
es
e
t
S
w
itc
h
P
h
a
se
III - Phase
III
-
P
ha
se
III
-
Ph
as
e
III
-
c i t
s e
m o
D
Sp
ac
e
hea
tin
g
P
h
a
se
III - Phase
III
-
P
ha
se
III
-
Ph
as
e
III
-
c i t
s e
m o
D
Sp
ac
e
hea
tin
g
Primary
Heating
Primary
T
emperature/Pressure
Domestic
Heating
Tr
iangleTube
Hot Water Specialists
P
u
sh
B
u
tt
on
To
R
es
e
t
S
w
itc
h
P
h
a
se
III - Phase
III
-
P
ha
se
III
-
Ph
as
e
III
-
c i t
s e
m o
D
Sp
ac
e
hea
tin
g
P
h
a
se
III - Phase
III
-
P
ha
se
III
-
Ph
as
e
III
-
c i t
s e
m o
D
Sp
ac
e
hea
tin
g
Primary
Heating
Primary
T
emperature/Pressure
Domestic
Heating
Tr
iangleTube
Hot Water Specialists
P
u
sh
B
u
tt
on
To
R
es
e
t
S
w
itc
h
P
h
a
se
III - Phase
III
-
P
ha
se
III
-
Ph
as
e
III
-
c i t
s e
m o
D
Sp
ac
e
hea
tin
g
P
h
a
se
III - Phase
III
-
P
ha
se
III
-
Ph
as
e
III
-
c i t
s e
m o
D
Sp
ac
e
hea
tin
g
1.
Appliance Circulator
2.
Shut Of
f
V
alves
3.
Flow Check
V
alve
4.
System Circulator
Fig. 16: Primary Piping - Multi Units Installation
