Omcan 46788, Инструкция по эксплуатации, Страница: 14 / 28

14
Operation
OPERATION CONDITIONS
WATER ODOR
In each water heater there is installed at least one anode rod(see parts section) for corrosion protection of
the tank. Certain water conditions will cause a reaction between this rod and the water. The most common
complaint associated with the anode rod is one of a “rotten egg smell” in the hot water. This odor is derived
from hydrogen sulfide gas dissolved in the water. The smell is the result of four factors which must all be
present for the odor to develop:
• A concentration of sulfate in the supply water.
• Little or no dissolved oxygen in the water.
• A sulfate reducing bacteria which has accumulated within the water heater(this harmless bacteria is
nontoxic to humans).
• An excess of active hydrogen in the tank. This is caused by the corrosion protective action of the anode.
Smelly water may be eliminated or reduces in some water heater models by replacing the anode(s) with one of
less active material, and then chlorinating the water heater tank and all hot water lines. Contact the local water
heater supplier or service agency for further information concerning an Anode Replacement and chlorination
treatment; we can only suggest that chlorination or aeration of the water supply be considered to eliminate the
water problem. Do not remove the anode leaving the tank unprotected. By doing so, all warranty on the water
heater tank is voided.
AIR IN HOT WATER FAUCETS
HYDROGEN GAS:
Hydrogen gas can be produced in a hot water system that has not been used for a long period of time
(generally two weeks or more). Hydrogen gas is extremely flammable and explosive. To prevent the possibility
of injury under these conditions, we recommend the hot water faucet, located farthest away be opened for
several minutes before any electrical appliances which are connected to the hot water system are used (such
as a dishwasher or washing machine). If hydrogen gas is present, there will probably be an unusual sound
similar to air escaping through the pipe as the hot water faucet at the time it is open.
HIGHER WATER TEMPERATURE SHUT OFF SYSTEM
A non-adjustable high temperature limit control operates before steam temperatures are reached. The high
limit switch must be reset manually when it operates. BECAUSE THE HIGH LIMIT OPERATES ONLY WHEN
ABNORMALLY HIGH WATER TEMPERATURES ARE PRESENT, IT IS IMPORTANT THAT A QUALIFIED
SERVICE AGENT BE CONTACTED TO DETERMINE THE REASON FOR OPERATION BEFORE
RESETTING.
• Turn off and unplug the water heater. Do not attempt to reset thermostat with power on.
• Remove the front panel, see “Removing Front Panel” in the Periodic Maintenance section.
• Removing the insulation to expose the reset button.
• Reset the high limit by pushing in the red button.
• Replace the insulation so that it completely covers the thermostat and element.
• Replace the front panel.
• Plug in and turn on the water heater.