AERCO AM Series Boiler User Manual - Manual (Page 117)

AM Series Boilers and Water Heaters
CHAPTER 8 – SPARE PARTS
OMM-0100_0B AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 Page 117 of 156
GF-146
Ph.: 800-526-0288 PRI - 07/14/14
6.1.8 Flame Signal Inspection
• Start the unit and perform the combustion calibration procedure per section 4.7.
• At high fire and low fire the flame signal (parameter 1008) should be within values given
in Appendix A, under header
“ionization current”. A lower flame signal may indicate a
fouled or damaged flame sense electrode. If cleaning the flame sense electrode does not
improve the problem, ground wiring is in good condition, and ground continuity is
satisfactory, replace the flame sensor electrode.
6.1.9 Relief Valve Inspection
• Inspect the relief valve and lift the lever to verify flow.
• Before operating any relief valve, ensure that it is piped with its discharge in a safe area
to avoid severe scald potential.
• Relief valve should be re-inspected at least once every three years, by a licensed
plumbing contractor or authorized inspection agency, to ensure that the product has not
been affected by corrosive water conditions. Certain naturally occurring conditions may
corrode the valve or its components over time, rendering the valve inoperative. Such
conditions are not detectable unless the valve and its components are physically
removed and inspected. This inspection must only be conducted by a plumbing
contractor or authorized inspection agency – not by the user.
WARNING!
Failure to re-inspect the relief valve as directed could result in
unsafe pressure buildup, and a dangerous condition.
6.1.10 Unit Vicinity Inspection
The following are NOT allowed to be in the vicinity of the unit or the flue exhaust system:
• Combustible/flammable materials: Do not store combustible materials, gasoline or any
other flammable vapors or liquids near the unit or exhaust system. Remove immediately if
found.
• Air contaminants: Products containing chlorine or fluorine, if allowed to contaminate the
heater intake air, will cause acidic condensate in the heater. This will cause significant
damage to the heater if allowed to continue. If any of these products are in the room from
which the heater takes its combustion air, they must be removed immediately or the heater
combustion air (and vent termination) must be relocated to another area.
All materials discussed above should be immediately removed from the heater vicinity and the
vicinity of the heater combustion air inlet.
If these materials have been present
for an extended period, call a qualified service technician
to inspect the heater for possible damage from acid corrosion.
If products cannot be rem
oved, immediately call a qualified service technician to re-pipe vent
and air piping and locate vent termination/air intake away from contaminated areas.