Operational Conditions; Maintenance - Polaris GAS WATER HEATER Installation, Operation And Service Manual

WATER HEATER SOUNDS
During the normal operation of the water heater, sounds or noises may be
heard. These noises are common and may result from the following:
Normal expansion and contraction of metal parts during periods of heat-up
1.
and cool-down.
Restrictions in the air inlet pipe, vent outlet pipe or condensate trap. THIS
2.
PROBLEM SHOULD BE ADDRESSED IMMEDIATELY!
3. Sediment build-up in the tank bottom will create varying amounts of noise
and may cause premature tank failure. Drain and flush the tank as
directed under "Draining and Flushing", page 24.
SAFETY SHUT-OFF
A high temperature limit switch or ECO (Energy Cut Off) is used to shut off the
unit if the water temperature exceeds 190°F (88°C). The ECO may be reset by
turning the thermostat dial completely counterclockwise to its lowest setting
and clockwise to the desired temperature setting. It may also be reset by
turning the power to the water heater OFF and then ON again.
DANGER
DO NOT ATTEMPT TO BY-PASS OR JUMPER THE ECO AS THIS CAN
RESULT IN PROPERTY DAMAGE, BODILY INJURY OR DEATH. THIS WILL
VOID THE WARRANTY AND RELEASE THE MANUFACTURER FROM ANY
LIABILITY FOR ANY INCIDENT RESULTING FROM ELIMINATING THE ECO
FROM THE WATER HEATER CIRCUIT.
LPG models incorporate a blower cover switch to disable the unit in the event
that the blower cover is dislodged from the blower housing. If this occurs, DO
NOT attempt to replace the blower cover or by-pass the blower cover switch.
Immediately turn off the electric power to the unit and turn off the gas at the
main shut-off valve. Immediately call a qualified service technician.
HYDROGEN GAS BUILD-UP
DANGER
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
CAN IGNITE WHEN EXPOSED TO A SPARK OR FLAME. TO PREVENT THE
POSSIBILITY OF INJURY UNDER THESE CONDITIONS, WE RECOMMEND
THE HOT WATER FAUCET BE OPENED FOR SEVERAL MINUTES AT THE
KITCHEN SINK BEFORE USING ANY ELECTRICAL APPLIANCE WHICH IS
CONNECTED TO THE HOT WATER SYSTEM. IF HYDROGEN IS PRESENT,
THERE WILL PROBABLY BE AN UNUSUAL SOUND SUCH AS AIR
ESCAPING THROUGH THE FAUCET AS WATER BEGINS TO FLOW. DO NOT
SMOKE OR HAVE ANY OPEN FLAME NEAR THE FAUCET AT THE TIME IT
IS OPEN.
PRESSURE SWITCH
This water heater is equipped with a pressure switch. This pressure switch
protects the unit by shutting it down in the event:
•
A blockage occurs in the combustion air inlet, the flue gas exhaust vent,
or both vents.
•
The condensate line should freeze and the condensate "backs up" and fills
the exhaust vent.
•
The blower should fail to operate, or operate improperly.
•
The unit begins to operate at an abnormally low input level.
NOTICE: The wiring diagram should be followed during the reconnection of any
electrical wires associated with the pressure switch. Tubing must be connected
exactly as shown above or the unit will not operate.
24

OPERATIONAL CONDITIONS

MAINTENANCE

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
OPERATION.
DRAINING AND FLUSHING
IT IS VERY IMPORTANT THAT THE WATER HEATER TANK BE DRAINED
AND FLUSHED PERIODICALLY, AS NECESSARY, TO ELIMINATE
ACCUMULATION OF SEDIMENT BUILDUP IN THE TANK BOTTOM. THIS
IS ESPECIALLY IMPORTANT WHERE HARD WATER IS INVOLVED.
FAILURE TO FOLLOW THE FOLLOWING STEPS COULD RESULT IN
PREMATURE TANK FAILURE CAUSING WATER DAMAGE TO THE
STRUCTURE.
The water heater should be drained if being shut down during freezing
temperatures. It is recommended that the tank be drained, flushed and cleaned
every 6 months to remove sediment which may build-up during operation. To
drain the tank perform the following steps:
1.
2.
3.
WATER DRAINING FROM THIS HEATER MAY BE HOT AND CAN RESULT
IN A SCALD INJURY. DO NOT ALLOW ANYONE TO COME IN CONTACT
WITH THE DRAINING WATER AND TERMINATE THE DRAIN HOSE TO AN
ADEQUATE DRAIN.
4.
5.
3 MONTH INSPECTION
At least every 3 months a visual inspection should be made of the combustion
air inlet and exhaust piping and water piping. Check the water heater for the
following:
•
•
•
CAUTION
WARNING
Turn off the electrical supply to the water heater. Turn off the gas to the
water heater at the Manual Gas Shutoff Valve.
Close the cold water inlet valve. Open a nearby hot water faucet.
Connect a hose to the drain valve and terminate it to an adequate drain.
Open the water heater drain valve and allow all the water to drain from
the tank.
DANGER
Flush the tank with water as needed to remove sediment.
Close the drain valve, refill the tank, and restart the heater as directed
under "Start-Up/Operation".
Obstructions, damage, or deterioration in the venting system. Make sure
the ventilation and combustion air supplies are not obstructed.
Leaking or damaged water, gas, and vent piping.
Presence of flammable or corrosive materials in the installation area.