Product Overview

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On a continuous basis:
1) Keeptheareaaroundtheboilerfreeandclearfromcombustiblematerials,gasoline,andotherammablevaporsand
liquids.
2) Keeptheareaaroundtheboilerandboilerroomventilationopeningsclearofobjectswhichmightobstructtheowof
combustion and ventilation air.
On at least a weekly basis:
For boilers equipped with a #67 low water cut-off, blow down the low water cut-off following the instructions on the yel-
low sticker adjacent to the low water cut-off. During this blow down, the low water cutoff should shut down the burners. If it
does not the low water cut-off should be replaced immediately.
Every three months:
Boiler water must be monitored throughout the heating season. Boiler water must be tested every three (3) months for
the constituents shown in Table 2. If chloride, total hardness, or pH levels in the boiler water are outside of the levels shown
inTable2,excessivemake-upwaterisbeingadded.Findandrepairallsystemleaks,drain,andrelltheboilerwithfresh
make-up water that meets the criteria in Table 2. Then bring the boiler to pressure for 15 minutes to drive off excess oxygen.
TABLE 2: STEAM BOILER WATER QUALITY CRITERIA
(Concentration Limits for Make-up Water & Boiler Water)
Constituent Make-up Water Boiler Water
Chlorides ≤ 30 mg/L (ppm) ≤ 100 mg/L (ppm)
Hardness (as CaCo3) ≤ 100 mg/L (ppm) ≤ 200 mg/L (ppm)
pH ≥ 9.0 and ≤ 12.0
 Anytimethechloride,totalhardness,orpHlevelsintheboilerwaterexceedthelevelslistedinTable1,drain,rell
with fresh make-up water that meets the criteria in Table 1, and bring the boiler to pressure for 15 minutes to drive off excess
oxygen.
 Attheendofeachheatingseason,drainandrelltheboilerwithfreshmake-upwaterthatmeetsthecriteriainTable1to
a level 4-6 inches above the normal water line. Then bring the boiler to pressure for 15 minutes to drive off excess oxygen.
On an annual basis:
1) Turn off electrical power and gas supply to the boiler
2) Inspecttheuepassagesforsignsofblockage.Ifthereisanycarboninthecombustionchamberortheuepassages,
clean the heat exchanger before proceeding further. See the cleaning procedure below.
3) Remove any debris found in the combustion chamber, being careful not to disturb combustion chamber insulation.
4) Remove all burners, noting the location of the pilot main burner. If burners show signs of deterioration, they should be
replaced(somediscolorationaroundtheburnerportsisnormal).Cleantheburnersbyrstbrushingtheportswithasoft
bristle brush and then vacuuming out any debris through the venturi opening.
5) Inspect the pilot assembly. Clean any deposits found on the electrode and grounding strap. The ideal gap between the
electrode and the ground strap is 1/8”. Inspect the porcelain for cracks or other deterioration. Replace pilot assembly if
deterioration is found.
6) Inspect the combustion chamber insulation for deterioration.
7) Inspect the ignition cable insulation for cracks or other deterioration. If deterioration is found, replace cable.
8) Reinstall burners, being careful to put the pilot burner back in its original location.
9) Inspect all boiler wiring for loose connections or deterioration.
XII. Service Instructions