Weil-McLain SlimFit 2 Series Manual page 88

SlimFit Series 2
®
Annual startup
The boiler should be inspected and started
annually, at the beginning of the heating
season, only by a qualified service techni-
cian.
In addition, the maintenance and care of
the boiler designated in Figure 79, page 86
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.
Do not use solvents to clean any of the
boiler components. The components could
be damaged, resulting in unreliable or
unsafe operation.
Address reported problems
1. Inspect any problems reported by 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 on page 24 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 SlimFit Boiler Vent Supplement.
Inspect air inlet box screen
1. Direct vent installations — Remove the cover from the air pipe
connection inspection tee (in installed) or remove air piping
as necessary to access the inlet box.
2. If unable to look directly down into the air inlet box (Figure 80),
use an inspection mirror.
3. Thoroughly inspect the air inlet screen.
4. If debris has collected on the air inlet screen, use a vacuum
to remove accumulation. Brush with a soft brush if necessary
to loosen material.
5. Direct vent installations — Re-install the cover on the air pipe
connection tee when complete.
6. Direct Exhaust installations – Inspect and clean screen as
needed.
Clean the condensate trap
1. Inspect the condensate trap. If the reservoir or trap portion
has debris accumulated, remove the trap and clean.
2. To remove, see page 44 for information.
3. Loosen the two stainless steel hose clamps on the flexible
coupling
4. Slide the flexible coupling over the 1" PVC pipe connected
to the trap.
5. Loosen the condensate trap inlet connection.
6. Remove condensate trap and flush as needed.
88
commercial condensing gas
(continued)
— Boiler Manual
-
fired water boiler
Figure 80
Air inlet box screen
7. Fill condensate trap with fresh water before re-installing or
re-install the trap and fill using the inspection caps near the
flue connection (piping end of boiler).
8. Ensure the condensate line gasket is in place. Then tighten the
condensate trap inlet connection clamp nut securely by hand.
9. Slide the flexible coupling back into place, connecting the
condensate trap and the condensate drain piping.
10. Tighten the stainless steel hose clamps to secure the flexible
coupling in place.
11. Verify that all the connections are made with no leaks to
complete installation.
Check all piping for leaks
Eliminate all system or boiler leaks. Continual fresh
make-up 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 procedure on page 45.
Check air openings
1. Verify that combustion and ventilation air openings to the
boiler room and/or building are open and unobstructed. Check
operation and wiring of automatic combustion air dampers,
if used.
2. Verify that boiler vent discharge and air intake are clean and
free of obstructions.
Flue vent system and combustion air
piping
1. Visually inspect entire flue gas venting system (and air pip-
ing, if installed) for blockage, deterioration or leakage. Repair
any joints that show signs of leakage in accordance with vent
manufacturer's instructions. When air is ducted to boiler, verify
that air inlet pipe is connected and properly sealed.
Failure to inspect for the above conditions and have
them repaired can result in severe personal injury
or death.
Part number 550-100-561/0224