Installation & Operation Manual
12
Maintenance
(continued)
Follow the Service and maintenance procedures given throughout this manual and in component literature
shipped with the boiler. Failure to perform the service and maintenance could result in damage to the boiler
or system. Failure to follow the directions in this manual and component literature could result in severe
personal injury, death, or substantial property damage.
The boiler should be inspected annually only by a qualified service technician. In addition, the maintenance
and care of the boiler designated in Table 12A and explained on the following pages must be performed to
assure maximum boiler efficiency and reliability. Failure to service and maintain the boiler and system could
result in equipment failure.
Electrical shock hazard – Turn off power to the boiler before any service operation on the boiler except as
noted otherwise in this instruction manual. Failure to turn off electrical power could result in electrical shock,
causing severe personal injury or death.
Address reported problems
1. Inspect any problems reported by the owner and correct
before proceeding.
Inspect boiler area
1. Verify that boiler area is free of any combustible materials,
gasoline and other flammable vapors and liquids.
2. Verify that air intake area is free of any of the contaminants
listed in Section 1 of this manual. If any of these are
present in the boiler intake air vicinity, they must be
removed. If they cannot be removed, reinstall the air and
vent lines per this manual and the Knight Wall Mount
Service Manual.
Inspect boiler interior
1. Remove the front access cover and inspect the interior of
the boiler.
2. Vacuum any sediment from inside the boiler and
components. Remove any obstructions.
Inspect condensate trap
Monthly inspection:
1. The condensate trap should be inspected monthly to
ensure the trap is properly installed and connected to the
condensate pipe under the boiler, see FIG. 12-1.
2. The condensate line should be inspected monthly
for obstructions, making sure it allows free flow for
condensate to drain.
3. Inspect the neutralizing kit (if installed) monthly to
ensure the condensate is draining properly, and there is
still an adequate amount of neutralizing agent available.
Annual cleaning:
1. The condensate trap should be cleaned at least once
annually, or at the end of each heating season, by
removing the bottom cap and cleaning out any sediment
that exists.
2. The provided condensate trap is equipped with a ball
that acts as a seal against harmful flue gases escaping in
case there is no condensate in the trap. If this ball is not
present, flue gases may be able to pass through the trap
when there is no condensate present, resulting in an
unsafe environment. It is important to check and make
sure the ball is still located in the trap, acting as a seal
against flue gases at least once annually and after every
cleaning.
Eliminate all system or boiler leaks.
Continual fresh makeup water will reduce
boiler life. Minerals can build up in sections,
reducing heat transfer, overheating heat
exchanger, and causing heat exchanger
failure. Leaking water may also cause severe
property damage.
1. Inspect all water and gas piping and verify to be leak free.
2. Look for signs of leaking lines and correct any problems
found.
3. Check gas line using the procedure found in Section 7 -
Gas Connections.
Check all piping for leaks
It is in the best interest of the end user
to make sure the ball is present and the
condensate trap is filled with water during
all times of boiler operation to avoid flue
gas emission from the condensate drain
line. Failure to have the ball present or to
fill the trap could result in severe personal
injury or death.
WARNING
WARNING
WARNING
WARNING
WARNING
IMG00046
CONDENSATE DRAIN
FLOAT BALL
BOTTOM CAP
Figure 12-1 Condensate Trap
75
3. After the condensate trap is cleaned or serviced, it must be
checked to ensure that it is installed and draining properly.
