HTP EVC115 - Manual (Page 18)

18
LP-379 REV. 3.25.14
PART 5 – INSTALLATION CHECKLIST
WATER HEATER LOCATION YES NO
Close to area of heated water demand
Indoors and protected from freezing temperatures
Area free of flammable vapors
Provisions made to protect area from water damage
Sufficient room to service heater
WATER SUPPLY YES NO
Water heater completely filled with water
Air purged from water heater and piping
Water connections tight and free of leaks
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)
Each water heater thermostat is a combination Thermostat – High Limit Control (ECO). Thermostats are located above the heating
elements. 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 and one for point of use units. 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.
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 10 – Detail of Steps 2 - 4