American Water Heater 120 series, Инструкция по эксплуатации

Страница: 44 / 52

44
PIPING DIAGRAMS
N
OTES
:
1.
P
re
ferred
piping
diagram
.
2.
The
tempera
ture
and
pre
ss
ure
relie
f valve
se
tting
shall
no
t exceed
pressure
ra
ting
o
f any
componen
t in
the
sys
tem
.
3.
S
ervi
ce
v
al
ves
are
s
hown
for
ser
vicing
uni
t.
Howeve
r,
local
codes
shall
govern
their
usage
.
4.
T
he
T
ank
T
empera
ture
Con
trol
should
be
wired
to
and
con
trol
the
pump
be
tween
the
wa
ter
hea
ter(s)
and
the
s
torage
tank(s)
.
5.
T
he
wa
ter
hea
te
r’s
opera
ting
thermos
ta
t should
be
se
t 5
degrees
F
higher
than
the
T
ank
T
empera
ture
Con
trol
.
COMME
R
CIAL ELECTRIC
- (3 UNITS) WITH VE
R
TICA
L S
TORAGE
T
ANK
LEGEND
TEMPER
AT
URE & PRESSURE
RELIEF
VA
LV
E
PRESSURE RELIEF
VA
LV
E
CIRCULA
TING PUMP
TA
NK
T
EM
PE
R
AT
URE C
O
N
TR
O
L
DRAIN
FULL
PO
R
T
BAL
L
VA
LV
E
TEMPER
AT
URE GAGE
W
ATER FLOW SWITC
H
CHECK
VA
LV
E
W
ARNING:
THIS DR
AW
ING SHOWS SUGGESTED
PIPING CONFIGUR
AT
ION
AND OTHER DEVICES;
CHECK WITH LOCAL
CODES
AND ORDINANCES
FOR
ADDITIONA
L
REQUIREMENTS
.
HO
T
W
ATER
TO
FIXTURE
S
FINISHED FLOOR
ALT. COLD WATE
R
CONNECTION
EXPANSION TANK
HOT WATE
R
RETURN
COLD WATE
R
SUPPLY
FUSED
DISCONNECT
SWITCH
PIPE T&P TO OPEN DRAIN
FUSED
DISCONNECT
SWITCH
PIPE T&P TO OPEN DRAIN
FUSED
DISCONNECT
SWITCH
PIPE T&P TO OPEN DRAIN