Watter Saver HPWH500AAOC Installation, Operation And Maintenance Manual - page 7
INFO@ECRINTERNATIONAL.COM
ECR INTERNATIONAL
7
IMPORTANT: Remember to install a suitable drain
pan under the water heater and pipe the drain line to
an adequate drain.
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 applicable
codes.
• Wiring is enclosed in an approved conduit (if required
by local codes).
• The water heater and electrical supply are properly
grounded.
If you lack the necessary skills required to properly in-
stall the WatterSaver™, DO NOT PROCEED. Have a
qualified electrician perform the installation.
DO NOT USE AN EXTENSION CORD TO SUPPLY
POWER TO THE WATTERSAVER™ HEAT PUMP
WATER HEATER.
IMPORTANT: Always use a good grade of joint com-
pound and be certain that all fittings are drawn up
tight.
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 rec-
ommended for easy removal of the unit if service or
replacement is required. (Figure 3)
3. The manufacturer recommends installing a tem-
pering valve in the domestic hot water line of the unit.
This valve reduces the point of use temperature of
the hot water by mixing cold and hot water. (Figure 4)
4. If installing the WatterSaver™ 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)
5. Install a shutoff 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.
6. Install a discharge line in the temperature and pres-
sure relief valve as specified in these instructions.
(Figure 2)
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 com-
pletely fill with water. To purge the lines of any excess
Do not apply power to an empty or partially filed
water heater. This can result in serious damage
to the tank and destroy the heating elements and
will void the warranty.
Do not operate the WatterSaver
TM
with the cold
water shutoff valve closed. This can result in se-
rious damage to the water tank and will void the
warranty.
Water supply to the WatterSaver
TM
must not ex-
ceed 180
o
F. Water temperatures in excess of 180
o
F will cause the high temperature cutout switch
to shut off power to the unit. The high tempera-
ture cutout switch must be reset before the water
heater can be operated.
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.
ELECTRICAL CONNECTIONS
WARNING
!
!
WARNING
!
!
CAUTION
!
!
FIGURE 4- Tempering Valve Connections
Cold Water Inlet
Hot Water Outlet
Tempered
Water Supply
Untempered
Water Supply
Tempering Valve
NOTE: The manufacturer recommends installing
thermal traps to reduce the effects of stacking (see
page 10) and Figure 3