UTICA BOILERS STARFIRE 3 STEAM Installation Manual And Operating Instructions page 18

BOILERS SHOULD BE CLEAN BOILERS SHOULD BE CLEANED BOILERS SHOULD BE CLEAN
BOILERS SHOULD BE CLEAN BOILERS SHOULD BE CLEAN
CAUTION: CAUTION:
CAUTION: CAUTION: CAUTION:
process.
1. SKIMMING OFF IMPURITIES
Some of the impurities in the boiler water will float on the water and must be skimmed
off.
With the boiler empty and cool, slowly begin to add water. After water has entered boiler
- never before - turn "on" oil burner and adjust water flow so that the water being added is
kept just below boiling point. Avoid boiling and turbulence.
Gradually raise hot water level to skimming hole, see figure 6 on page 6, installed on
the rear section of the boiler being careful not to raise it above the opening of the hole. Skim
until there are no impurities. Repeat the process if necessary.
Water may be checked to make sure it is free from oil by drawing off a sample at the
skimming hole. If the sample is reasonably free from oil, it will not froth when boiled on stove.
This test does not indicate the amount of sediment which may lay in the bottom of the boiler.
It is therefore necessary that the boiler be further cleaned by "blowing down."
2. BLOWING DOWN BOILER
Before blowing down the boiler, fill it to the water line. Turn on burner and allow five
pounds of steam pressure to build up. Run a temporary connection from one of the drain
valves to a nearby sewer. Connect to a drain valve on the opposite end of the boiler from
feed water inlet, if possible. Shut off the oil burner, open drain valve and blow down the entire
contents of boiler.
Allow boiler to thoroughly cool and slowly refill to water line. Repeat step 2 as many times
as required until blow off water is clear. Owner should blow down boiler at least once each
month of the heating season.
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3. USING CLEANING COMPOUND
If an exceptional amount of dirt or sludge seems to be present in the boiler, a boiler
cleaning compound made by a reputable manufacturer may be used according to the
instructions of the manufacturer of the compound. When any type of cleaning compound
is used, care must be taken to thoroughly flush all traces of the compound out of the boiler.
Following blow down allow the boiler to cool. Add fresh water slowly. Be certain to blow
enough times as required to remove compounds from system.
The area around the boiler must be kept clear and free of combustible materials,
gasoline and other flammable vapors and liquids.
The free flow of combustion and ventilation air to the boiler and boiler room must not be
restricted or blocked.
PERIODIC INSPECTION and tightening of the tankless heater/cover plate bolts will PERIODIC INSPECTION PERIODIC INSPECTION
PERIODIC INSPECTION PERIODIC INSPECTION
reduce the risk of leaks. See part numbers 3 & 5, figure 15 on page 19.
MECHANICAL LOW WATER CUT-OFF:
Operation should be checked, with burner on, by opening the blow-off valve located in
the lower portion of the low water cut-off body. This will drain the water quickly from the cut-
off body and break the circuit to the burner. If it does not, replace the control.
W W W W W ARNING: ARNING: ARNING: ARNING:
ARNING:
ED ED by skimming or blowing down. ED
ED
The boiler should not be left unattended during the cleaning
WATER WILL BE BOILING HOT.
WATER WILL BE BOILING HOT.
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