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MAINTENANCE
9. MAINTENANCE
A. GENERAL MAINTENANCE (WITH BOILER
IN USE)
All boilers require periodic inspection and maintenance.
General boiler inspection can be performed by a
homeowner. However, if any potential problems are
found, a qualified installer or service technician/agency
must be notified.
1. Remove any combustible materials, gasoline and
other flammable liquids and substances that generate
flammable vapors from the area where the boiler is
installed.
2. Observe general boiler conditions (unusual noises,
vibrations, etc.)
3. Observe operating temperature and pressure on the
combination gauge located in the supply piping at the
rear of the boiler.
a) Boiler pressure should never be higher than 25
psig.
b) Boiler temperature should never be higher than
210°F.
4. Check for water leaks in the boiler and system piping.
NOTICE
This is a fully condensing appliance. If there is a
large amount of moisture around the base of the
boiler, check the condensate removal system for
proper operation.
5. Check for leaks originating from the condensate
removal system under the boiler.
6. During boiler operation, check the vent termination
outside the building. Condensing boilers will often
emit a white plume of water vapor. If dark smoke is
evident, turn off the boiler and contact your service
technician immediately.
B. ANNUAL MAINTENANCE (BEFORE THE
START OF HEATING SEASON)
CAUTION
The following annual inspection and maintenance
must be performed by a qualified service technician
using appropriate test equipment.
NOTICE
If this boiler is used in combination with an indirect
water heating tank (such as the Peerless Partner), the
following annual maintenance should also be
performed after the heating season.
34
1. With the boiler service switch turned off, check the
function of the safety relief valve by performing the
following test:
a) Check valve piping to determine that it is properly
installed and supported.
WARNING
The safety relief valve is to be piped with no valves
on its inlet or outlet. No reductions in pipe size or
other restrictions to flow are allowed in this piping.
WARNING
The safety relief valve is to be piped to within 12
inches of the floor to assure that, in the event of an
overpressure situation, no one is injured by a sudden
burst of hot water and steam.
b) Check boiler operating temperature and pressure.
c) With a bucket under the outlet pipe, lift the try
lever on the safety relief valve to the full open
position and hold it for at least five seconds until
clean water is discharged.
d) Release the try lever and allow the valve to close.
If the valve leaks, operate the lever two or three
times to clear the valve seat of foreign matter. It
may take a few moments to determine if the valve
seat is completely closed.
e) If the valve continues to leak, it must be replaced
before the boiler is returned to operation.
WARNING
The safety relief valve is to be replaced only with a
valve with identical inlet and outlet size and a
minimum flow rating that meets or exceeds the rating
listed on the boiler nameplate. Failure to do so may
cause severe personal injury, death or major property
damage.
f) Check that the operating pressure and
temperature on the boiler combination gauge,
located in the supply piping, have returned to
normal levels.
g) Before leaving the installation, check the pressure
relief valve again to assure that it is completely
closed and not leaking.
2. Check the condensate drain and condensate removal
system.
a) Remove the condensate hose from the boiler
connection behind the base front panel.
b) Check the condensate hose for blockage.
c) Disassemble the condensate trap and check for
potential blockage.
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Troubleshooting
