GSW 5065 Water Heater Operation, Keep the area around the heater clear, Unobstructed, Smoke/Odour

Water Heater Operation		(11 litres (3 US gallons) or less) are taken from the water
		heater tank. This causes increased cycling of the burner
	WARNING:
		and can result in increased water temperatures at the hot
Keep the area around the heater clear and		water outlet. A tempering device is recommended in the hot
unobstructed.		water supply line to reduce the risk of scald injury.
Figure 24 shows the water heater’s sequence of operation		Emergency Shut Down
when a call for heat is initiated. The ignition control module		Important: Should overheating occur or the gas supply fails
will attempt to light the burner three times. If the ignition con-		to shut off, turn off the water heater’s manual gas control
trol does not detect ignition it will enter lockout mode, indi-		valve and call a qualified service technician.
cated by a three flash error code.

		Operational Conditions
CALL		Condensation
FOR HEAT		Moisture from the products of combustion condenses on the
INDICATED BY		tank surface and forms drops of water which may fall onto
FAST FLASH
	IGNITER IS	the burner or other hot surfaces. This will produce a “siz-
OF LED
	ENERGIZED AND MAIN	zling” or “frying” noise. This condensation is normal and
	VALVE IS OPENED
		should not be confused with a leaking tank. Condensation
CONTROL CHECKS TO		may increase or decrease at different times of the year.
	MAIN BURNER ON AND	High efficient energy saver water heaters will produce larg-
ENSURE PRESSURE	THE FLAME IS	er amounts of condensation on initial start-up or when a
SWITCH IS OPEN
	SENSED BY CONTROL
		large amount of hot water is being used. Do not confuse this
		with a “tank leak”. Once the water reaches a temperature of
BLOWER IS	MAIN BURNER	49°C (120°F) and the tank warms up (usually 1-2 hours),
ENERGIZED	CONTINUES TILL THE	the condensation will stop.
	WATER IN THE TANK	Important: It is always recommended that a suitable drain
	REACHES
		pan be installed under the water heater to protect the area
CONTROL CHECKS TO	THERMOSTAT
	SETTING	from water damage resulting from condensation, a leaking
ENSURE PRESSURE
SWITCH CLOSES		tank or piping connections. Refer to “Location
INDICATING BLOWER		Requirements”. Under no circumstances is the manufactur-
IS OPERATING AND	MAIN BURNER SHUTS	er to be held responsible for any water damage in connec-
THERE ARE NO
	OFF. BLOWER	tion with this water heater.
VENTING BLOCKAGES	CONTINUES FOR A
(INLET OR OUTLET)	POST PURGE TIME	Water Heater Sounds
		During the normal operation of the water heater, sounds or
Figure 24 Sequence Of Operation		noises may be heard. These noises are common and may
		result from the following:
Burner Flames		1. Normal expansion and contraction of metal parts during
		periods of heat-up and cool-down.
Inspect the burner flames through the viewport and com-		2. Condensation causes sizzling and popping within the
pare them to the drawings in Figure 25. A properly operat-		burner area and should be considered normal.
ing burner should produce a soft blue flame. Blue tips with		3. Sediment buildup in the tank bottom will create varying
light blue inner cones are satisfactory. The tips of the flame		amounts of noise and may cause premature tank fail-
may have a slight yellow tint. The flame should not be all		ure. Drain and flush the tank as directed under
yellow or have a sharp blue-orange colour. Contaminated		“Draining and Flushing”.
air may cause an orange coloured flame. Contact a qualified
service technician if the flame is not satisfactory.		Smoke/Odour

						The water heater may give off a small amount of smoke and
		BLUE TIPS				odour during the initial start-up of the unit. This is due to the
						burning off of oil from metal parts of a new unit and will dis-
	LIGHT BLUE INNER
					INCORRECT
						appear after a few minutes of operation.
	CONES ARE SATIS-
					FLAME LAZY
	FACTORY
					YELLOW
						Anode Rod/Water Odour
			CORRECT FLAME
				SOFT BLUE		Each water heater contains at least one anode rod, which
	Figure 25 Flame Characteristics					will slowly deplete while protecting the glass-lined tank from
						corrosion and prolonging the life of the water heater. Once
Stacking						the anode is depleted, the tank will start to corrode, eventu-
						ally developing a leak. Certain water conditions will cause a

Stacking occurs when a series of short draws of hot water	reaction between this rod and the water. The most common
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