ANNUAL TUNE UP & INSPECTION
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Oil Heat – Eighteenth Edition – June 2015
Step 1 Initial Test (Draft Loss & CO
Make sure air box cover is in place before testing
1. Remove 1/8" brass plug from the "over fire" test port (2) next to the burner and the
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flue box (1) next to the puff switch. Check draft through the "over fire" test port (2)
and at the flue box (1). Use a 12" long piece of ¼" O.D. steel or copper tubing and
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insert it approximately 8" into the boiler. Connect this tube to your test probe using
a piece of hose.
Clean boiler flue passage if the draft difference between the flue box (1) and "over
fire" test port (2) is greater than .04" w.c.
2. Check CO
through the "over fire" test port (2). Insert the 12" long steel or copper
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tube approximately 8" in through the test port.
Check in test port must be: Max: 11% CO
Step 2 Open Front Cover
1. Loosen, but DO NOT REMOVE (2) lower nylock nuts on hinge bolts.
2. Remove (3) upper nuts and support cover while opening.
3. Inspect burner head/end cone condition
DO NOT remove or touch combustion chamber for inspection or
Step 3 Inspect Flue Passage
If passage is clean, no scale, then close cover and tighten all hardware evenly.
Clean ONLY if dirty.
Step 4 Clean Boiler
Do Not Touch, Vacuum or Remove Chamber!
Note: If there is heavy scale in last pass:
1. Check for cold returns.
2. Open by-pass valve fully.
3. Set Digital Manager Option Switch 1 to "ON".
4. If scaling persists, increase firing rate.
Step 5 Close Front Cover
1. Install (3) upper nuts and washers.
2. Tighten nuts (5) uniformly.
3. Check and tighten (6) rear cover nuts.
3. Check Flue Pipe.
4. Check chimney base and clean if necessary.
Step 6 Remove Drawer Assembly
1. Check Electrode Setting.
2. Check Porcelain Condition.
3. Check Nozzle for coking/heat.
4. Replace nozzle if necessary. See installation manual for nozzle selection.
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/ Min: 10% CO
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when cleaning boiler!
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