52
Figure 9-2_Single Water Heater Piping with Two Storage Tanks
COMMON MANIFOLD SIZE (Min.)
Models: 500 - 1000
Number of Units
GPM
Diameter
(in.)
1
7
5
2
1/2
COMMON MANIFOLD SIZE (Min.)
Models: 1500 - 2000
Number of Units
GPM
Diameter
(in.)
1
9
0
2
1/2
NOTES:
1. PREFERRED PIPING LA
YOUT
.
2.
THE
TEMPERA
TURE
AND PRESSURE RELIEF V
A
L
VE SETTING SHALL
NOT
EXCEED PRESSURE RA
TING OF
ANY
COMPONENT
IN
THE SYSTEM.
3. SER
VICE V
A
L
VES
ARE SHOWN FOR SER
VICING W
A
TER HEA
T
ER. HOWEVER, LOCAL
CODES SHALL
GOVERN
THEIR USAGE.
4.
MAXIMUM PIPING LENGTH BETWEEN
T
A
NK
AND W
A
TER HEA
T
ER SHOULD NOT
EXCEED
A
T
O
T
A
L
OF 50 EQUIV
A
LENT
FEET
CONSTRUCTED OF 2-1/2 INCH PIPE SIZE OR LARGER.
9
Domestic water heaters
Installation & Operation Manual
Please note that these illustrations are meant to show system piping concept only, the installer is responsible
for all equipment and detailing required by local codes.
NOTICE
