Operating instructions
68
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. Clean Heating System (Water). Contact a qualified
water treatment chemical specialist for
recommendations regarding appropriate chemical
compounds and concentrations which are compatible
with local environmental regulations.
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 fill boiler. Pour recommended compound
into boiler through safety relief valve opening.
c. Replace Safety Relief Valve.
d. Fill entire system with water.
e. Start firing 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 firing 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. Refill 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
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.
CONDENSATION — Following a cold start,
condensation (sweating) may occur in a gas fired
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. Combustion Chamber Burn-Off.
1. The mineral wool combustion chamber panels
contain a cornstarch based binder that must be
burned out at installation to prevent odors during
subsequent boiler operation.
2. Ventilate the boiler room, set the high limit to its
maximum setting, set the thermostat to call for heat.
Allow the boiler to fire for at least an hour or until
the odor from the cornstarch has dissipated.
3. Return the high limit and thermostat to their desired
settings.
Q. Review User's Information Manual and system
operation with owner or operator.
R. Post instructions near boiler for reference by owner and
service personnel. Maintain instructions in legible
condition.