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I*L A.S.M.E.
RATED
PRESSURE
RELIEF VALVE
Each boiler must have a properly sized and installed American
Society of Mechanical
Engineers
rated pressure relief valve.
Water expands as it is heated by the burner/boiler
sections.
If there is no
place for the water to expand its volume,
(i.e. a properly sized and properly functioning
expansion
tank) pressure on the inside of the boiler and heating system will increase.
The furnished relief valve
will automatically
open at 30 psig pressure to relieve the strain on the boiler and heating system from
the increasing
pressure.
The pressure relief valve discharge
must be piped with piping same size as
the valve discharge opening to an open drain, tub or sink, or other suitable drainage point not subject
to freezing, in accordance
with A.S.M.E. specifications.
Failure to provide the pressure relief valve
with piping as herein described may cause water damage and/or serious bodily injury.
The boiler
manufacturer
is not responsible
for any water damage or personal injury.
L.
FLAME ROLLOUT
SAFETY
SHUTOFF
As required, this boiler is equipped with a manual reset flame rollout safety shutoff means, which
shuts off main burner gas in the event that the flow of combustion
products through the flueways is
reduced.
In the event of blocked flueways, enough air will not be available to support combustion,
and the 1013-10 Integrated Boiler Control (IBC) will lockout due to loss of adequate air flow (after 3
trials for ignition).
The "PURGE"
diagnostic indicator lamp (lamp "B" on the IBC, see Fig.16) will
blink indicating
the failure mode as a lack of adequate air flow. The IBC is manually
reset from
lockout by either removing
and reestablishing
the thermostat's
call for heat, or by turning the service
switch off, then back on. If the boiler cannot be restored to normal operating condition by resetting
the control, contact a qualified service agency to check heat exchanger
flueways for blockage.
M. (OPTIONAL)
EXTERNAL
CONDENSATE
PUMP
For installations
where there is no floor drain or other appropriate
drainage receptacle
available to
receive condensate
from the boiler, an external float activated condensate
pump with integral sump is
required.
This unit can be installed to pump the condensate
to a remote tie in point to a sanitary
sewer system.
For this application,
the boiler must be installed so that proper pitch of piping to the
external condensate
reservoir (sump) can be accomplished.
Use wood frame or blocks to raise boiler
as required for proper installation.
A. WATER
TREATMENT
AND FREEZE
PROTECTION
1.
When filling the boiler and heating system, water treatment is generally not required or desired.
For localities where the water is unusually hard (above 7 grains hardness)
or for low pH water
conditions
(below 7.0), consult a local water treatment
specialist.
a.
This boiler is designed for use in a closed hydronic heating system ONLY!
b.
Excessive
feeding of fresh make-up water to the boiler may lead to premature
failure of the
boiler sections.
2.
Use clean fresh tap water for initial fill and make-up
of boiler.
a.
A sand filter must be used if fill and make-up water from a well is to be used.
b.
Consideration
should be given to cleaning the heating system, particularly
in retrofit
situations,
where a new boiler is being installed in an older piping system.
c.
In older systems, obviously
discolored,
murky, or dirty water, or a pH reading below 7, are
indications
that the system should be cleaned.
d.
A pH reading between 7 and 8 is preferred.
34
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