Filter
Top Products
61
1. Boiling Out of Boiler and System. Oil and grease
which accumulate in a new hot water boiler can be
washed out in the following manner.
a. Remove Safety Relief Valve using extreme care
to avoid damaging it.
b. Partially ll boiler. Pour recommended
compound into boiler through safety relief valve
opening.
c. Replace Safety Relief Valve.
d. Fill entire system with water.
e. Start ring equipment.
f. Circulate the water through the entire system.
g. Vent the system, including the radiation.
h. Allow boiler water to reach operating
temperature, if possible.
i. Continue to Circulate the water for a few hours.
j. Stop the ring equipment.
k. Drain the system in a manner and to a location
that hot water can be discharged with safety.
l. Remove plugs from all available returns and
wash the water side of the boiler as thoroughly as
possible, using a high-pressure water stream.
m. Rell the system with fresh water.
n. Add recommended boiler water treatment.
2. Make pH or Alkalinity Test.
a. After boiler and system have been cleaned and
relled as previously described, test the pH of
the water in the system. This can easily be done
by drawing a small sample of boiler water and
testing with Hydrion paper which is used in the
same manner as litmus paper, except it gives
specic readings. A color chart on the side of the
small Hydrion dispenser gives the reading in pH.
Hydrion paper is inexpensive and obtainable
from any chemical supply house or through your
local druggist. The pH should be higher than 7
but lower than 11. Add recommended water
treatment chemicals, if necessary, to bring the pH
within the specied range. With this lower level
of protection, care must be exercised to eliminate
all of the free oxygen in the system.
b. Boiler is now ready to be put into service.
CONDENSATION — Following a cold start,
condensation (sweating) may occur in a gas red
boiler to such an extent that it appears that the boiler
is leaking. This condensation can be expected to
stop after the boiler is hot.
O. Check Damper Operation - If boiler is equipped with
vent damper, vent damper must be in open position
when boiler main burners are operating. Start boiler,
refer to instructions on damper to determine if damper
is in full open position.
P. Review User's Information Manual and system
operation with owner or operator.
Q. Post instructions near boiler for reference by owner
and service personnel. Maintain instructions in legible
condition.