4.
See Closed Systems and
Thermal Expansion on page 13
5.
See W
ater Connections on page 17.
6.
If
a
building
recirculation
loop
is
present
the
circula
tion
pump
must
be
controlled
by
a
thermostat. See Figure 1
8
on page 4
0
for wiring.
W
ATE
R
PIPI
N
G
D
IA
G
RAM
S
Before installation of water piping review the following:
1.
See Mixing
Valves on page 13.
2.
See W
ater
Temperature on page 10.
3.
See
Temperature - Pressure Relief
Valve on pa
ge 14.
4
5
W
A
RNING:
THIS DR
AW
ING SHOWS SUGGESTED
PIPING CONFIGURA
TION
AND OTHER DEVICES;
CHECK WITH LOCAL
CODES
AND ORDINANCES
FOR
ADDITIONAL
REQUIREMENTS.
LEGEND
TEMPER
AT
URE & PRESSUR
E
RELIEF
VAL
V
E
PRESSURE RELIEF V
AL
VE
CIRCULA
TING PUMP
DRAIN
WYE STRAINER
FULL
PO
R
T
BALL
V
AL
V
E
TEMPERA
TURE GAGE
CHECK
VAL
VE
TA
NK
O
R L
INE
TE
M
PER
ATUR
E
CONTRO
L
TWO
AIR
TO W
ATER HEA
T PUMPS, SINGLE TEMPER
AT
URE
WITH HORIZONT
AL
ST
ORAGE T
ANK
WITH FORCED BUILDING RECIRCULA
TION
HOT
OUTLET
TO
FIXTURES OR
INLET
OF BACKUP
W
ATER HEA
TER
BUILDING RECIRCULATION LOOP RETURN
NOTE: CONNECT
BUILDING
RECIRC RETURN
TO
INLET
OF BACKUP
W
ATER HEA
TER
WHEN PRESENT
SUPPLY
SUPPL
Y
W
ATER
(OUTLET)
FINISHED FLOOR
RETURN W
ATER
(INLET)
PURGE V
AL
VE
LINE THERMOSTAT
COLD W
ATER
SUPPL
Y
PIPE T&P TO OPEN DRAIN
TA
NK
THERMOST
AT
DRAIN & FLUSH V
A
LVES
FLUSH VA
LVES
EXPANSION TANK
HPWH
HPWH
ST
ORAGE TANK
Summary of Contents for AWH-35
Page 2: ......
Page 32: ...UNIT WIRING DIAGRAMS FUSE SIZES 208 230 VAC SINGLE PHASE 60 HZ 32...
Page 33: ...UNIT WIRING DIAGRAMS FUSE SIZES 208 230 VAC THREE PHASE 60 HZ AWH 35 AWH 55 and AWH 75 only 33...
Page 34: ...UNIT WIRING DIAGRAMS FUSE SIZES 208 230 VAC THREE PHASE 60 HZ only 34...
Page 35: ...UNIT WIRING DIAGRAMS FUSE SIZES 460 VAC THREE PHASE 60 HZ 35...
Page 36: ...UNIT WIRING DIAGRAMS FUSE SIZES 460 VAC THREE PHASE 60 HZ only 36...
