U.S. Boiler Company INDEPENDENCE, Инструкция по установке, эксплуатации и обслуживанию, Страница: 43 / 72

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Figure 38, 39 or 40.
f. Close all radiator valves. Remove all supply
main air valves. Plug openings in supply main.
g. Drain approximately 5 gallons of boiler water
into container. Mix in recommended boil-out
compound.
h. Remove safety valve. Pour recommended
compound into boiler through safety valve
opening. Reinstall safety valve in Tapping "E"
with spindle in vertical position. See Figures 1
and 2.
i. Follow Lighting or Operating Instructions to
place boiler in operation. See Figure 38, 39 or
40. Slowly feed water to boiler. Water will rise
slowly into supply main and back through return
main. Adjust flow to maintain approximately
180°F water from return main hose. Continue
until water runs clear from hose for at least 30
minutes.
j. Turn off water to boiler. Continue to operate until
excess water is removed from boiler and system
(by steaming) and boiler water reaches normal
waterline.
k. Follow instructions TO TURN OFF GAS TO
APPLIANCE. See Figure 38, 39 or 40. Open all
radiator valves. Reinstall all supply main air
valves. Open gate valve in Hartford Loop.
l. Allow boiler to cool until crown sheet is no
longer too hot to touch. Close drain valves at
boiler and in return main. Fill boiler slowly to
normal waterline.
m. Follow Lighting or Operating Instructions to
place boiler in operation. See Figure 38, 39 or
40. Allow boiler to steam for 10 minutes. Drain
one quart of water from lower Gauge Glass
fitting.
n. Drain second quart sample from lower Gauge
Glass fitting. If sample is not clear, repeat cycle
of draining boiler and return main and refilling
boiler until sample is clear.
o. If after normal operation boiler water becomes
dirty from additional system piping sediment
returning to boiler.
i. Complete steps 5a through 5n.
ii. Complete steps 3a through 3k.
6. Make pH or Alkalinity Test.
a . After boiler and system have been cleaned and
refilled 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
specific 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 specified 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.
N.
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.
O.
Review User's Information Manual
and system
operation with owner or operator.
P.
Post instructions near boiler for reference by owner
and service personnel. Maintain instructions in legible
condition.
IX. System Start-up (continued)