Hubbell Electric Heater Company WATER HEATER DF - Manual (Page 16)

16
SECTION III –
START UP AND OPERATION
WARNING / CAUTION
Temperatures above 130ºF (54º C) can cause scalding. Scalding temperatures are especially
hazardous to young children, aged or handicapped persons. A serious or disabling injury can occur.
Note that a mixing valve installed at the hot water outlet can reduce the risk of scalding at such
points of use as lavatories, sinks and bathing facilities
Excessively hot water may suggest that the upper operating thermostat has failed. If you determine
an operating control thermostat has failed, it should be replaced IMMEDIATELY by a qualified
service technician.
If the burner turns on and off every 3 to 4 minutes on a regular basis, the lower control thermostat
setting may have to be decreased. Such a "short cycling" condition accelerates wear of burner
components which can lead to early failure.
IMPORTANT
THE MANUFACTURER'S START UP REPORT MUST BE COMPLETED AND
RETURNED. FAILURE TO DO SO WILL VOID THE WARRANTY.
ALWAYS CONTACT A TRAINED SERVICE TECHNICIAN TO PERFORM START UP.
SHOULD FACTORY ASSISTANCE BE REQUIRED, PLEASE HAVE THE WATER
HEATER SERIAL NUMBER AVAILABLE.
Combination gas/oil burners require a supply of oil for oil pump lubrication even when operating on
gas.
Some oil burners require a supply of either natural or L.P gas to operate the pilot. Check burner
construction for the presence of gas pilot tubing and a pilot gas pressure regulator.
START UP
1. Fill water heater and drain to remove any residue that may have accumulated during the
installation process. Remove hand hole cover and remove any material not flushed through
drain. Reinstall hand hole cover, fill with water and open a nearby hot water faucet to bleed out
any entrapped air. Be sure all tank connections are tight. Leaking water causes corrosion and
insulation damage.