State GPG 81 370NEA - Manual (Page 31)

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Normally, lime removal will be completed within one hour.
Severe build-up of lime may take longer than an hour to complete
descaling.
Note: To check uN•lIme for continued use, place some scale
or white chalk in a glass with a small amount of uN•lIme. If
the material is vigorously dissolved by the uN•lIme, it can be
reused; if not, the uN•lIme should be replaced.
figure 26.
power burner
keep the area around the burner clear and free of combustible
materials, gasoline or other flammable liquids or vapors.
Do not obstruct burner air openings or ventilation grilles for
combustion air.
typical main burner flame
figure 27.
The main burner flames (Figure 27) should be visually checked
once a year for proper operation. This can be observed through
the observation port on the burner housing. Burner flame should
be blue. DO NOT use the observation port on the side of the tank
to inspect the burner flame.
1. Add a few drops of no. 20 non-detergent oil (GPG 81-140 Thru
81-370) into the oil tubes once every three months.
2. At least annually, contact a qualified service agency for a burner
readjustment, cleaning and other than routine maintenance.
Should the main burner or burner air openings require cleaning,
remove the burner and clean with a soft brush. Clean main
burner orifice with a suitable soft material.
While the water is being run through the tank, insert a
stiff wire, copper tube flattened at one end or an opened
wire coat hanger through the cleanout opening and
scrape out any loose deposits of scale or sediment. This
is an economical way to avoid unnecessary usage of the
deliming solution.
repeat the opening and closing of the cold water inlet valve
as necessary but be sure the heater is completely drained
when ready to introduce the uN•lIme.
upon completion, reinstall the cleanout cover and use a new
cleanout cover gasket (part number 9004099215).
remove the drain valve.
9. Install the long plastic male adapter insert fitting into the drain
valve opening of heater after applying Teflon tape or paste to
threads. Tighten firmly by hand and use wrench or adjustable
pliers to check for secure connection. Do not over tighten to
avoid damage to threads and fittings.
Prepare the up-N-Down Transfer kit
The next step is the preparation on the up-N-Down Transfer kit,
if you have not already done so:
1. With the 5 gallon up-N-Down container in the vertical
position, unscrew the plastic vent cap in the handle and
pierce the plastic membrane over the vent boss under the
cap to allow the container to vent.
note: If your container does not have the vent cap and vent
boss, drill a 3/16” hole in the handle. When you have finished
deliming you will be able to plug this drilled vent with the
stainless steel screw that is supplied with the kit.
2. remove the container’s cap and cut the plastic membrane
located in the 3/4” IPT opening in the cap. Take care to not
damage the threads.
3. Find the 3/4” male adapter, apply teflon tape to the threaded
end and screw it into the 3/4” IPT opening in the cap.
4. Put cap with male adapter back on the container and slide
3/4” hose over end of male adapter and fasten in place using
hose clamp provided.
Delime using Flo-Jug method
5. Slide the hose clamp over end of hose and slide hose over
the male adapter in the water heater drain opening and
secure in place using hose clamp.
6. lift container to the “Pour” Position, see Figure 26, being
careful to keep the vent in the handle above the liquid level
and pour the uN•lIme into the heater.
7. lower container, you may have to place the container on its
empty carton to prevent the uN•lIme from flowing back into
the container.
8. let uN•lIme remain in the heater for 5 minutes and then
lower the container to the “Drain” Position, see Figure 26.
9. Deliming activity is indicated by foaming on the surface of the
uN•lIme. If there is deliming activity, repeat steps 6 thru 8.