Monthly During Heating Season; Periodically During Heating Season; End Of Each Heating Season-Annual Shut Down Procedure; Annual Examination And Cleaning Of Boiler Components - Kenmore K90-50 Installation Instructions Manual

K90 series
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C. MONTHLY
DURING
HEATING
SEASON
1.
Remove jacket front and top panels and check for piping leaks around relief valve and other
fittings.
If found, contact a qualified
service agency to repair.
DO NOT use stop leak
compounds.
2.
Test relief valve.
Refer to valve manufacturers
instructions
packaged
with relief valve.
3.
Visually inspect venting and air intake system for proper function,
deterioration,
or leakage.
If the vent or air intake show any signs of deterioration
or leakage,
contact a qualified service
agency to repair or replace them immediately
and to insure proper reassembly
and resealing
of
the vent and air intake system.
4.
Visually
inspect the clear vinyl condensate
lines and the PVC condensate
drain pipe for proper
operation,
leakage,
and deterioration.
If the condensate
lines or drain pipe show any signs of
blockage,
leakage, or deterioration
contact a qualified service agency to clean, repair, or
replace them immediately.
5.
Check air vent(s) for leakage.
6.
Check the air baffle located inside llA'x
2" flexible coupling,
clean it if necessary
and
make sure to put it back.
Refer to repair parts diagram,
mixer and pressure switch
assembly.
D. PERIODICALLY
DURING
HEATING
SEASON
1.
Where low water cut offs are used, a periodic inspection
of the low water cut off is necessary,
including
flushing of float type devices.
Refer to low water cut off manufacturer's
specific
instructions.
E. END OF EACH HEATING
SEASON
- ANNUAL
SHUT DOWN PROCEDURE
.
2.
Follow
instructions
"TO TURN OFF GAS TO APPLIANCE".
If heating
system is to remain out of service during freezing weather,
and does not contain
antifreeze,
drain system completely.
If boiler will be exposed to freezing temperatures,
drain
condensate
lines.
Otherwise,
do not drain system or boiler.
F. ANNUAL
EXAMINATION
AND CLEANING
OF BOILER
COMPONENTS
The following
service procedures
must be performed
only by a qualified service agency.
Boiler owner should not attempt these procedures.
.
2.
Before Servicing,
turn off electrical
power to boiler at service switch.
Close manual gas
valve to turn off gas supply to boiler.
Flue passages
between
boiler
sections
are examined
by removing
eight (8) sheet metal
screws and the inspection
plate on the left side jacket panel, and then removing
the twenty
(20) socket head cap screws and the exposed cleanout cover plate on the boiler sections,
being
careful to not damage the gasket.
Refer to repair parts diagram,
boiler block and piping
assembly.
The procedure
for examining
and cleaning the burner
is also described
below.
a.
Any buildup of sediment
or aluminum
oxide (white powdery
or flaky substance)
in the
flue passages
must be cleaned as follows:
b.
Remove jacket front and top panels.
Disconnect
condensate
drain line from the barbed
fitting on the bottom of the boiler.
Keep the open end of the drain line above the water
level in the condensate
trap to prevent the trap from draining.
Disconnect
pressure
switch
44

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