Check Boiler Relief Valve; Reinstall Jacket Door After Servicing; Review With Owner - Weil-McLain Evergreen EVG 70 Manual

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Annual startup
Check b oiler relief valve
1. Inspect the relief valve and lift the lever to verify fl ow 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.
2. Read page 43 or 48 before proceeding further.
3. Follow instructions below or perform procedures per relief
valve manufacturer's printed instructions.
Safety relief valves should be reinspected AT LEAST
ONCE EVERY THREE YEARS, by a licensed
plumbing 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 contractor 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.
Following installation, the valve lever must be
operated AT LEAST ONCE A YEAR to ensure that
waterways are clear. Certain naturally occurring
mineral deposits may adhere to the valve, rendering
it inoperative. When manually operating the lever,
water will discharge and precautions must be taken
to avoid contact with hot water and to avoid water
damage. Before operating lever, check to see that a
discharge line is connected to this valve directing
the fl ow of hot water from the valve to a proper
place of disposal. Otherwise severe personal injury
or property damage may result. If no water fl ows,
valve is inoperative. Shut down boiler until a new
relief valve has been installed.
4. After following the above warning directions, 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.
106
as-fired water boiler —
(continued)
Boiler Manual
70/110/155
Reinsta ll jacket door after
servicing
Reinstall boiler jacket door after start-up or servicing.
The boiler jacket door must be securely fastened to
the boiler to prevent boiler from drawing air from
inside the boiler room. This is particularly important
if the boiler is located in the same room as other
appliances.
Inspect boiler jacket door gaskets on front of cabinet.
Gaskets must be in good condition, with no tears or
gaps. Replace if necessary.
Failure to keep the jacket door securely sealed and
fastened could result in severe personal injury or
death.
Revie w with owner
1. Review the User's Information Manual with the
owner.
2. Emphasize the need to perform the maintenance
schedule specified in the User's Information
Manual (and in this manual as well).
3. Remind the owner of the need to call a licensed
contractor should the boiler or system exhibit
any unusual behavior.
4. Remind the owner to follow the proper shutdown
procedure and to schedule an annual startup at
the beginning of the next heating season.
Part number 550-100-191/0917