Check Heater Area; Check Pressure Gauge; Check Vent Piping; Check Air Piping - Slant/Fin VSL II User Instructions

6 - MAINTENANCE
WARNING!!!
WARNING!!!
Before
performing any maintenance
operations, shut the boiler off,
close the manual gas shut-off
valve and shut off electrical
power to the heater. Follow the
Operating Instructions outlined
in the section "SAFETY
INSTRUCTIONS" (Beginning of
the manual).

6.1.1 - Check heater area

WARNING!!!
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 boiler.
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 4.1. 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.
6.1.2 - Check pressure
gauge
1. Make sure the pressure reading on
the heater pressure gauge (item "M"
of Figure 5-1) does not exceed the
maximum working pressure. Higher
pressure may indicate a problem
with the expansion tank.

6.1.3 - 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!!!
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.

6.1.4 - 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.
6.1.5 - Check condensate
drain system
1. Visually 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
boiler and system.
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6.1.6 - 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!!!
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.

6.1.7 - Shut boiler down

1. Follow "To Turn Off Gas to
Appliance" on page 3 of this manual.
2. Do not drain the system unless
exposure to freezing temperatures
will occur.
6.1.8 - Test low water
cutoff (if used)
If the system is equipped with a
low water cutoff, test the low water
cutoff periodically during the heating
season, following the low water cutoff
manufacturer's instructions.
6.1.9 - Reset low water
cut off button (If used)
Testing the low water cutoff shuts the
unit off. Press the RESET button on
the low water cutoff to turn the unit
back on.