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.
43
FINISHED FLOOR
SUPPL
Y
HOT
OUTLET
TO FIXTURES OR INLET
OF BACKUP
W
ATER HEA
TER
EXPANSION TANK
BUILDING RECIRCULATION LOOP RETURN
COLD WATER SUPPLY
LINE THERMOSTAT
NOTE: CONNECT
BUILDING
RECIRC RETURN
TO
INLET
OF BACKUP
W
ATER HEA
TER
WHEN PRESENT
TANK
THERMOST
AT
PIPE T&P TO OPEN DRAIN
RETURN W
ATER
(INLET)
PURGE V
AL
VE
SUPPL
Y
W
ATER
(OUTLET)
ST
ORAGE TANK
FIELD SUPPLIED PUMP FOR HPWH MODELS
WITHOUT
F
ACT
O
RY
PUMP
HPWH
HPWH
DRAIN & FLUSH V
A
LVES
FLUSH VA
LVES
W
A
RNING:
THIS DRA
W
ING SHOWS SUGGESTED
PIPING CONFIGURA
TION
AND OTHER DEVICES;
CHECK WITH LOCAL
CODES
AND ORDINANCES
FOR
ADDITIONA
L REQUIREMENTS
.
TWO
AIR T
O
W
ATER HEA
T PUMPS, SINGLE TEMPER
AT
URE
WITH VERTICAL
ST
ORAGE T
ANK
WITH FORCED BUILDING RECIRCULA
TION
LEGEND
TEMPERA
TURE & PRESSURE
RELIEF
VAL
VE
PRESSURE RELIEF V
AL
VE
CIRCULA
TING PUMP
DRAIN
WYE STRAINER
FULL
PO
R
T
BALL
V
A
LV
E
TEMPERA
TURE GAGE
CHECK V
AL
VE
TA
NK
OR
LI
NE
TEMPER
ATUR
E
C
O
NTRO
L
Содержание WH-35
Страница 2: ......
Страница 32: ...UNIT WIRING DIAGRAMS FUSE SIZES 208 230 VAC SINGLE PHASE 60 HZ 32 ...
Страница 33: ...UNIT WIRING DIAGRAMS FUSE SIZES 208 230 VAC THREE PHASE 60 HZ WH 35 WH 55 and WH 75 only 33 ...
Страница 34: ...UNIT WIRING DIAGRAMS FUSE SIZES 208 230 VAC THREE PHASE 60 HZ only 34 ...
Страница 35: ...UNIT WIRING DIAGRAMS FUSE SIZES 460 VAC THREE PHASE 60 HZ 35 ...
Страница 36: ...UNIT WIRING DIAGRAMS FUSE SIZES 460 VAC THREE PHASE 60 HZ only 36 ...