Weil-McLain SVF 1500 Manual page 94

SVF
™
Series 1
Commercial Condensing Gas-Fired Water Boiler — Boiler Manual
Annual startup
The boiler should be inspected and started annu-
ally, 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 84, page 92 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 26 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.
Clean the condensate trap
1. Inspect the condensate trap. If the trap has debris accumulated,
remove the trap and clean.
2. To remove, see page 46 for information.
3. Loosen the condensate trap inlet connection and flush as needed.
4. Ensure the condensate inlet connection gasket is in place, then
tighten condensate trap inlet connection securely by hand.
The condensate trap float MUST be in place in the
condensate trap assembly to prevent possible flue gas
leakage through the condensate drain system.
5. To install, see page 46 for information.
6. 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 reducing heat transfer, overheating the 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 47.
94
(continued)
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.
Failure to install the combustion air damper could result
in nuisance shut downs or substantial property damage
Flue vent system and combustion air piping
1. Visually inspect entire flue gas venting system (and air piping, 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.
Check water system
1. Verify all system components are correctly installed and opera-
tional.
2. Check the cold fill pressure for the system. Verify it is correct (usu-
ally around 12 psig). Reference Minimum Pressure on page 15.
3. Watch the system pressure as the boiler heats up (during testing)
to ensure pressure doesn't rise too high. Excessive pressure rise
indicates expansion tank sizing or performance problem.
4. Inspect automatic air vents and air separators. Remove air vent
caps and briefly press push valve to flush vent. Reinstall caps. Make
sure vents do not leak. Replace any leaking vents.
5. Check system water chemistry (inhibitor concentration, pH and
hardness). See page 85.
Check boiler relief valve
1. Inspect the relief valve and lift the lever to verify flow as in the following
warnings, excerpted from a relief valve manufacturer's warning label.
Before operating any relief valve, ensure that it is piped with
its discharge in a safe area to avoid severe scald potential. Read
manual section 3, page 12, before proceeding further.
2. If the relief valve weeps or will not seat properly, replace the relief
valve. Ensure that the reason for relief valve weeping is the valve
and not over-pressurization of the system due to expansion tank
waterlogging or under-sizing.
Safety relief valves should be reinspected AT LEAST
ONCE EVERY THREE YEARS,
ing contractor or authorized inspection agency, to ensure
that the product has not been affected by corrosive water
conditions and to ensure that the valve and discharge line
have not been altered or tampered with illegally. Certain
naturally occurring conditions may corrode the valve or
its components over time, rendering the valve inoperative.
Such conditions are not detectable unless the valve and its
components are physically removed and inspected. This
inspection must only be conducted by a plumbing contrac-
tor or authorized inspection agency — not by the owner.
Failure to reinspect the boiler relief valve as directed could
result in unsafe pressure buildup, which can result in severe
personal injury, death or substantial property damage.
by a licensed plumb-
Part number 550-100-250/0819