30
June 2009 | Printed in U.S.A. | ©
A.
O.
Smith
For
Technical Information a
nd
Automated Fax Service, call 800-527-1953 or visit ww
w
.hotwater
.com.
AOSDG61
160 | P
AGE 1 of 1
A. O. Smith Corporation reserves the right to make product changes or improvements without prior notice.
NOTES:
1.
Preferred piping layout.
2.
The temperature and pressure relief valve setting shall not exceed pressure rating of any component in the system.
3.
Service valves are shown for servicing boiler
. However
, local codes shall govern their usage.
4.
Maximum piping length between tank and boiler should not exceed a total of 50 equivalent feet constructed of 2 inch pipe
size or larger
.
VF BOILERS VW(500
-1
000)
- ONE BOILER/HORIZONT
AL
ST
ORAGE
TANK
RECOVER
Y SYSTEM (ONE
TEMPERA
TURE)
LEGEND
TEMPER
AT
URE & PRESSURE
RELIEF
VA
LV
E
PRESSURE RELIEF
VA
LV
E
CIRCULA
TING PUMP
REMOTE
TEMPER
AT
URE
PROB
E
DRAIN
FULL
PO
RT
BAL
L
VA
LV
E
TEMPER
AT
URE GAGE
WA
TER FLOW SWITC
H
CHECK
VA
LV
E
CAUTION:
THIS DR
AW
ING SHOWS SUGGESTED
PIPING CONFIGUR
AT
ION
AND OTHER DEVICES;
CHECK WITH LOCAL
CODES
AND ORDINANCES
FOR
ADDITIONA
L
REQUIREMENTS.
FINISHED FLOOR
SYSTEM RETURN
COLD W
ATER
SUPPL
Y
EXP
ANSION
TANK
{HOT
W
ATER
TO FIXTURES}
AOS
ST
ORAGE
TANK
ONE VF (MODEL
VW) HOT W
ATER SUPPL
Y BOILER WITH HORIZONT
AL
T
ANK
DANGER
TEMPERA
TURE
SETTING
SHOULD
NOT
EXC
EED
SA
FE
USE
TEMPER
ATU
RE
AT
FIXTUR
ES.
IF
HIGH
ER
PREHEA
T
TEMPERA
TURES
ARE
NECESSAR
Y
TO
O
B
TA
IN
A
D
EQ
U
AT
E
B
O
O
ST
ER
O
U
TP
U
T,
A
D
D
A
N
A
N
TI
-S
C
A
LD
V
A
LV
E
FO
R
H
O
T
W
AT
E
R
S
U
P
P
LI
E
D
TO
FIXTURES, SEE T
ABLE 1
1.
FIGURE 15.
•
INST
ALL
IN
ACCORDANCE
WITH
ALL
LOCAL
CODES.
•
W
H
E
N
B
LO
W
D
O
W
N
V
A
LV
E
I
S
R
E
Q
U
IR
E
D
,
IN
S
TA
LL
IN PLACE OF
THE DRAIN V
AL
VE SHOWN.