Watter Saver HPWH500AAOC Installation, Operation And Maintanance Manual - page 8
Made In Rome, NY, USA
Watter$aver Heat Pump Water Heater
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7. After piping has been properly connected to the water
heater, open all hot water faucets and the cold water supply
valve to the tank and allow the tank to completely fill with
water. To purge the lines of any excess air and sediment,
keep the hot water faucet open for 3 minutes after a con-
stant flow of water is obtained. Close the faucet and check
all connections for leaks.
WARNING
Water supply to the Watter$aver must not exceed
180° F (82.2° C). Water temperatures in excess of 180°
F (82.2° C) will cause the high temperature cutout switch
to shut off power to the unit. The high temperature cut-
out switch must be reset before the water heater can
be operated.
IMPORTANT: Remember to install a suitable drain
pan under the water heater and pipe the drain line to
an adequate drain.
WARNING
Do not operate the Watter$aver with the cold water
shutoff valve closed. This can result in serious damage
to the water tank and will void the warranty.
ELECTRICAL CONNECTIONS
CAUTION
Do not apply power to an empty or partially filled water
heater. This can result in serious damage to the tank
and destroy the heating elements and will void the war-
ranty.
When making electrical connections, always make sure:
• The electrical supply has the proper overload fuse
or breaker protection.
• Wire sizes and connections comply with all appli-
cable codes.
• Wiring is enclosed in an approved conduit (if re-
quired by local codes).
• The water heater and electrical supply are properly
grounded.
If you lack the necessary skills required to properly install
the Watter$aver, DO NOT PROCEED. Have a qualified elec-
trician perform the installation.
WARNING
Do not use an extension cord to supply power to the
Watter$aver Heat Pump Water Heater!!
1. Install the water piping and fittings as shown in Figure 3
by connecting the cold water supply to the fitting marked
“C” and the hot water piping to “H.”
2. The installation of unions and water shutoff valves in both
the hot and cold water supply lines is recommended for
easy removal of the unit if service or replacement is re-
quired. (Figure 3.)
3. ECR International recommends installing a tempering valve
in the domestic hot water line of the Watter$aver. A temper-
ing valve reduces the risk of scalding injuries by lowering
the point of use temperature of the hot water for faucets and
showers by mixing cold and hot water in the supply lines
while allowing untempered hot water to be used by certain
appliances such as dishwashers and washing machines
that require increased water temperatures. By setting the
thermostat on the Watter$aver to obtain the higher tem-
peratures required by these appliances, you may create the
potential for a scald injury if a tempering valve is not in-
stalled. (Figure 4.)
4. If installing the Watter$aver in a closed water system,
install a relief valve or expansion tank in the cold water line
as specified under “Closed System/Thermal Expansion.”
(Figure 3.)
IMPORTANT: The manufacturer recommends install-
ing thermal traps to reduce the effects of stacking. (See
Figure 3 and page 10.)
5. Install a shutoff valve in the cold water inlet line. It should
be located close to the water heater and be easily acces-
sible. Know the location of this valve and how to shut off the
water to the heater.
6. Install a discharge line in the temperature and pressure
relief valve as shown in Figure 2 of these instructions.
Figure 4
Tempering Valve Connections
Cold Water Inlet
Hot Water Outlet
Tempered
Water Supply
Untempered
Water Supply
Tempering Valve*
* When installed in the Commonwealth of Massachusetts, the Tempering
Valve must have a maximum setting of 130 °F
Vacuum Relief Valve