Weil-McLain Gold CGa - Manual (Page 48)

GOLD CGa Gas-Fired Water Boiler — Boiler Manual
48
Part Number 550-101-009/0107
Service & maintenance – annual start-up
(cont.)
10b
❏ Check/test
(continued)
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 before proceeding
further.
. 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
undersizing.
Figure 27 Relief valve, typical
❏ Review with owner
1. Review the User’s Information Manual with the
owner.
. 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 in 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 start-up at the
beginning of the next heating season.
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 occur-
ring conditions may corrode the
valve or its components over time,
rendering the valve inoperative.
Such conditions are not detectable
unless the valve and its compo-
nents are physically removed and
inspected. This inspection must
only be conducted by a plumbing
contractor or authorized inspec-
tion 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 in-
jury, 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 de-
posits may adhere to the valve,
rendering it inoperative. When
manually operating the lever, wa-
ter 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 direct-
ing the flow of hot water from the
valve to a proper place of disposal
otherwise severe personal injury
may result. If no water flows,
valve is inoperative. Shut down
boiler until a new relief valve has
been installed.