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Water System Piping - Whirlpool E1A30HS035V Installation And Use Manual

Residential electric water heater
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Water System Piping
Piping Installation
Piping, fittings, and valves should be installed according
to the installation drawing (Figure 6). If the indoor
installation area is subject to freezing temperatures, the
water piping must be protected by insulation.
Water supply pressure should not exceed 80% of the
working pressure of the water heater. The working
pressure is stated on the water heater's data plate. If
this occurs a pressure limiting valve with a bypass may
need to be installed in the cold water supply line. This
should be placed on the supply to the entire house in
order to maintain equal hot and cold water pressures.
Important:
Heat cannot be applied to the water fittings
on the heater as they may contain nonmetallic parts If
solder connections are used, solder the pipe to the
adapter before attaching the adapter to the hot and cold
water fittings
Important: Always use a good grade of joint compound
and be certain that all fittings are drawn up tight
1
Install the water piping and fittings as shown in the
Figure 6 Connect the cold water supply (3/4 NPT)
to the fitting marked '%" Connect the hot water
supply (3/4 NPT) to the fitting marked "H"
Important:
Some models may contain energy saving
heat traps to prevent the circulation of hot water within
the pipes Do not remove these inserts
2
The installation of unions in both the hot and cold
water supply lines are recommended for ease of
removing the water heater for service or replacement
3
The manufacturer of this water heater recommends
installing a tempering valve in the domestic hot water
line as shown in Figures 7 and 8 These valves reduce
the point-of-use temperature of the hot water by
mixing cold and hot water and are readily available
Contact a licensed plumber or the local plumbing
authority
4
If installing the water heater in a closed water system,
install a relief valve or expansion tank in the cold
water line as specified under "Closed System/Thermal
Expansion"
5
Install a shut off valve in the cold water inlet line It
should be located close to the water heater and be
easily accessible Know the location of this valve and
how to shut off the water to the heater
.
Install a temperature and pressure relief valve and
discharge line in the opening marked "T & P RELIEF
VALVE" Install as specified under "Temperature and
Pressure Relief Valve"
7.
After piping has been properly connected to the water
heater, open the nearest hot water faucet and allow
the tank to completely fill with water To purge the
lines of any excess air and sediment, keep the hot
water faucet open for 3 minutes after a constant flow
of water is obtained
Close the faucet and check all
connections for leaks
FIG URE 6
WATER
PIPING
INSTALLATION
ltOT
WATER
OUTLET
IN A CLOSED
SYSTEM
USE EITIIER:
1.
TIIERMALEXPANSIONTANK
b_,,/
2.
PRESSURE
RELIEF
YALVE
PRESSURE
REDUCING
Y_L\'E
WITII BYPASS
DRAIN PAN
_
2-1/2 INCH DEPTII
MAX.
COLD
WATER
INLET
COLD
_&_TER
INLET
VALVE
PRESSURE
RELIEF
VALVE
DtSCIIARGE
LINE
ABOYE
DRAIN
DRAIN
LINE
i
i
3/4 tNCll
tD
Tills
ILLUSTRATION
DOES
MINIMUM
NOT MEET TIIE CODE
OF
DRAIN
TIlE COMMONWEALTII
OF
MASSACIIUSETTES.
FIG URE 7
TEMPERING
VALVE
SIDE WATER CONNECTIONS
FOLLOW
TIlE
TEMPERING
VALVE'S
MANUFACTURER'S
INSTALLATION
INSTRUCTIONS
TEMPERED
WATER
TO FIXTURES
TEMPERING
_5_ LYE
SET TO 120 ° F MAXIMUM
IlOT
WATER
OUT
COLD WATER 1N
FIGURE
8
TEMPERING
VALVE
TOP WATER CONNECTIONS
FOLLOW
TIIE TEMPERING
VALVE MANUFACTURER'S
INSTRUCTIONS
COLD
V_;&TER
INLET
TEMPERED
WATER TO
FIXTURES
TEMPERING
VALVE
(SETTO
120 ° F)

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