Aerco Esteem 399, Installation And Maintenance Instructions Manual

Page: 96 / 136

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17 - MAINTENANCE
17.1.14 - Check vent piping
1. Visually inspect the vent outlet
termination to be sure it is
unobstructed. Visually inspect the
entire length of the flue gas vent
piping for any signs of blockage,
leakage, or deterioration of the
piping. Notify your qualified service
technician at once if you find any
problems.
WARNING!!!
Failure to
inspect the vent system as
noted above and have it repaired
by a qualified service technician
can result in vent system failure,
causing severe personal injury
or death.
17.1.15 - Check air piping
1. Visually inspect the air inlet
termination to be sure it is
unobstructed. Inspect the entire
length of air piping to ensure piping
is intact and all joints are properly
sealed.
2. Call your qualified service technician if
you notice any problems.
17.1.16 - Check
condensate drain system
1. Inspect the condensate drain line,
condensate fittings and condensate
trap for signs of weeping or leakage.
2. If you detect signs of leakage,
immediately contact your qualified
service technician to inspect the
heater and system.
17.1.17 - Check heater
piping (gas and water)
1. If gas odor or leak is detected,
immediately shut down the heater
following the procedures on page 3.
Call a qualified service technician.
2. Visually inspect for leaks around
water piping. Also inspect the
circulators, relief valve, and fittings.
Immediately call a qualified service
technician to repair any leaks.
WARNING!!!
Have leaks
fixed at once by a qualified
service technician. Failure to
comply could result in severe
personal injury, death, or
substantial property damage.
17.1.12 - Check heater
area
WARNING!!!
To prevent
potential of severe personal
injury, death, or substantial
property damage, eliminate
all materials discussed below
from the heater vicinity and
the vicinity of the heater
combustion air inlet.
If contaminants are found:
Remove products immediately
from the area. If they have
been there for an extended
period, call a qualified service
technician to inspect the
heater for possible damage
from acid corrosion.
If products cannot be removed,
immediately call a qualified
service technician to re-pipe
vent and air piping and locate
vent termination/air intake
away from contaminated areas.
1. Combustible/flammable materials --
Do not store combustible materials,
gasoline or any other flammable
vapors or liquids near the heater.
Remove immediately if found.
2. 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. Read
the list of potential materials listed
in Section 5.1.1. 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.
17.1.13 - Check pressure
gauge
1. Make sure the pressure reading on
the heater pressure gauge (item “M”
of Figure 16-1) does not exceed the
maximum working pressure. Higher
pressure may indicate a problem
with the expansion tank.
2. Contact a qualified service
technician if problem persists.