Weil-McLain 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 technician.
In addition, the maintenance and care of the
boiler designated in Figure 79, page 86 and
explained on the following pages must be per-
formed to assure maximum boiler efficiency
and reliability. Failure to service and maintain
the boiler and system could result in equip-
ment failure.
Electrical shock hazard — Turn off power to
the boiler before any service operation on the
boiler except as noted otherwise in this in-
struction 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 re-
moved, 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.
88
COMMERCIAL CONDENSING GAS
(continued)
- — Boiler Manual
FIRED WATER BOILER
Air inlet box screen
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.
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 con-
densate 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, overheat-
ing 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 opera-
tion and wiring of automatic combustion air dampers, if used.
2. Verify that boiler vent discharge and air intake are clean and free
of obstructions.
Part number 550-100-180/0917