8
START-UP FUNCTIONAL CHECKS
PRE-POWER CHECK
• After all electrical connections have been made; every effort should
be made to verify a safe installation. Again check to be sure all
connections in the unit disconnect and/or circuit breaker panel are
secure. Check to be sure that an adequate ground has been properly
connected. Check to be sure that adequate size breakers have been
installed properly. Remember that breakers that are too large are
more dangerous than breakers that are too small.
• RUN WATER THROUGH THE UNIT UNTIL ALL AIR IS PURGED.
POWER CHECK
• Check only after the Pre-Power Check has been completed and the
unit filled with water. Turn on the Main Power Circuit Breakers. Verify
that the water heater’s GREEN POWER-ON “FLASHING” indicator light
is illuminated.
USE EXTREME CAUTION WHEN CHECKING VOLTAGE TO THE UNIT.
• Check the voltage available to each active power circuit. Eccotemp
models rated 5KW to 28KW are designed to operate from a 208V to
240V power supply. Connect a voltmeter at power circuit 1 (CKT 1)
between L1 and L2. (For models with multiple power circuits utilized,
continue to check voltage at each additional power circuit.)
OPERATIONAL CHECKS
• Turn water on MEDIUM-LOW utilizing any sink allowing water to run
for a couple of minutes to ensure that all air is purged from the unit.
You will hear a “click” as the relays on the circuit board engage. It is
normal to hear a “hissing” or “crackling” noise from the heat exchanger
after the unit is started. With the unit’s cover removed, verify with an
ammeter that there is ELECTRICAL CURRENT through each heating
element circuit. DISREGARD THE WATER TEMPERATURE WHILE DOING
THIS TEST.
• TURN OFF FAUCETS after completing Operational Check.
• Thermostat settings are factory preset to approximately 120°F and are
adjustable with the potentiometer on the board.
A QUALIFIED AND LICENSED CONTRACTOR MUST
PERFORM THIS INSTALLATION.
Refer to your local electrical and plumbing codes for additional information
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