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Series 3
Annual service and start-up
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 manufac-
turer'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 page 14 regarding relief valves before
proceeding further.
Safety relief valves should be reinspected
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 compo-
nents 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.
Department of Energy - Compliance
THE LIMIT CONTROL SUPPLIED WITH THE BOILER MUST BE SET-UP WITH THERMAL PREPURGE
In accordance with
Section 303 of
the 2007 Energy Act
equipped with a feature that saves energy
by reducing the boiler water temperature
as the heating load decreases. This feature
is equipped with an override which is
provided primarily to permit the use of
an external energy management system
that serves the same function.
28
water boiler — Boiler Manual
at least
, by a licensed plumb-
OR THERMAL TARGETING ACTIVE UNLESS EXEMPTED BELOW:
THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST ONE OF
, this boiler is
THE FOLLOWING CONDITIONS IS TRUE:
• An external energy management system is installed that reduces the boiler water temperature
as the heating load decreases.
• This boiler is not used for any space heating.
• This boiler is part of a modular or multiple boiler system having a total input of 300,000
BTU/hr or greater.
• This boiler is equipped with a tankless coil (not applicable to Ultra Oil boilers).
(continued)
Following installation, the valve lever must be oper-
ated
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
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.
2. After following the 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 waterlog-
ging or undersizing.
Check all boiler wiring
Inspect all boiler wiring, making sure wires are in good condition
and securely attached.
Check control settings
1. Check boiler limit control setting, Adjust if necessary.
2. Check settings of external limit controls (if any) and adjust if
necessary.
IMPORTANT
at least once each year
Part number 550-143-013/0621
to ensure that
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