Watter Saver HPWH500AAOC Installation, Operation And Maintenance Manual - page 9
INFO@ECRINTERNATIONAL.COM
ECR INTERNATIONAL
9
ELECTRICAL CONNECTIONS
Wiring and connections comply with all appli-
cable codes.
Water heater and electric supply properly
grounded.
Proper overload fuse or breaker protection in
stalled.
IMPORTANT: Be sure the water tank is completely filled
before applying electrical power to the unit.
1. To ensure the unit is completely filled, open all hot
water faucets to allow air to escape from the piping.
Then close the faucets, turn on the power supply, and
rotate the temperature selector dial to the desired set-
ting.
2. The upper electric resistance element (represented
by a green LED located inside the front grille of the
WatterSaver™ shroud) will turn on after a brief delay
and turn off when the upper temperature sensor is sat-
isfied.
EMERGENCY SHUT-OFF
A high temperature cutout switch on the
WatterSaver
TM
will automatically shut the unit off in
the event that water temperature exceeds 180
o
F (83
o
C). The high temperature cutout switch can be reset
by firmly pushing the red reset button located behind
the thermostat panel on the front of the unit.
IMPORTANT: The water temperature must be below
180°F (83° C) in order to reset the unit.
QUICK REFERENCE- The LED indicators inside the
front grille of the WatterSaver
TM
shroud represent:
·····
Green – Upper electric resistance element
·····
Yellow – Compressor
·····
Red – Lower electric resistance element
3. When the green LED turns off, the yellow LED will
glow and the compressor and fans will energize. The
heat pump will operate until the lower temperature
sensor is satisfied.
IMPORTANT: There will be a brief time delay between
compressor start-up and when the fans begin to run.
4. When the heat pump stops running, the LEDs will
stop glowing. At this point, the water has reached the
set temperature.
WATER HEATER OPERATION
1. When there is a demand for hot water, cold water
(from the water supply), enters the tank, travels down
the dip tube, and is delivered to the bottom of the tank.
2. The lower temperature sensor reacts to the de-
creased tank temperature and energizes the heat
pump.
3. The heat pump will continue to operate until the water
temperature reaches the thermostat setting.
IMPORTANT: When the heat pump is running, the unit
will emit sounds similar to a refrigerator or dehumidi-
fier.
4. If the demand for hot water is greater than the re-
covery rate of the heat pump, the upper temperature
sensor will react to the decreased upper tank tempera-
ture, turn off the heat pump and energize the upper
electric resistance element. The mode of operation is
indicated by the LED indicators.
IMPORTANT: In the event of heat pump system
failure or extreme ambient (hot or cold) conditions,
the red LED will glow. Refer to Troubleshooting
Guide for more information.
WATER TEMPERATURE REGULATION
The thermostat is adjusted to a temperature setting of
120° F or lower when it is shipped from the factory. Wa-
ter temperature can be regulated by adjusting the ther-
mostat to the preferred setting as shown in Figure 7.
The preferred starting point is 120° F. There is a
hot water scald potential if the thermostat is set
too high.
START-UP AND OPERATION
DO NOT attempt to operate or repair this water
heater if the thermostat or surrounding insula-
tion has been exposed to water in any way. Call
a qualified service technician to inspect the unit
and immediately replace any thermostat or insu-
lation that has been exposed to water.
Water heaters subjected to flood conditions or
thermostats that have been submerged in water
require replacement of the entire water heater.
WARNING
!
!