Instructions / Assembly

14
WHL-003 REV. 7.14.14
RELIEF VALVE
YES
NO
Temperature and Pressure Relief Valve properly installed and discharge line run to open drain
Discharge line protected from freezing
WIRING
YES
NO
Power supply voltage agrees with water heater rating plate
Branch circuit wire and fusing or circuit breaker of proper size
Electrical connections tight and unit properly grounded
Table 4 – Installation Checklist
PART 6 – OPERATING THE HEATER
Tank must be full of water before power is turned on. Heating elements will be damaged if energized for even a short time while tank is
dry. Failures due to “dry-firing” are NOT covered by warranty.
After water and electrical connections have been made and tank is filled with water, turn on power to heater. The heater is now in
operation.
A. COMBINATION THERMOSTAT AND HIGH LIMIT CONTROL (ECO)
This heater is equipped with a combination Thermostat – High Limit Control (ECO), which is located above the heating element (above
the upper element on dual element heaters). If for any reason the water temperature becomes excessively high, the ECO breaks the
circuit to the heating element. Once the switch opens, it must be reset manually. However, THE CAUSE OF THE OVER
TEMPERATURE CONDITION MUST BE CORRECTED FIRST.
The cause of the high temperature condition must be investigated by a qualified service
technician and corrective action must be taken BEFORE placing the water heater back in
service. Failure to do so could result in property damage, severe personal injury, or death.
B. THERMOSTAT ADJUSTMENT AND ECO RESET
There are two thermostats on dual element heaters. If temperature adjustment is necessary,
TURN OFF POWER TO HEATER, remove black access cover and insulation. The thermostat
protective cover should NOT be removed. Set temperature indicator to desired temperature.
Replace insulation and the black access cover. Turn on power to the heater. See below for
Thermostat adjustment/ECO reset.
IF YOU NEED TO ADJUST THERMOSTAT(S) OR RESET THE ECO (RED
RESET BUTTON):
STEP #1 – Turn off power to the water heater by removing fuse or shutting off at circuit
breaker.
STEP #2 – Remove the two screws that hold the access cover in place. Remove the cover.
STEP #3 – Remove the insulation to expose the thermostat.
STEP #4
a. Reset the ECO by pushing in the red button marked “RESET”.
b. Adjust water temperature by turning the white adjustment knob. Turning the knob to the right (clockwise) makes the water
hotter. Turning the knob to the left (counterclockwise) makes the water cooler.
Risk of scald injury increases as you increase water temperature.
Failure to disconnect power from water heater before attempting to adjust or reset the
thermostat(s) will result in property damage, severe personal injury, or death due to
electric shock.
Figure 6 – Detail of Steps 2 - 4