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MegaSteam
Installation & Service Manual
e. Make pH or Alkalinity Test.
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 9, but lower than 12.
Add some of the washout chemical (caustic
soda), if necessary, to bring the pH within
the specified range.
f. Boiler is now ready to be put into service.
C. EXCESSIVE MAKE-UP WATER
A leaky system will increase the volume of
make-up water supplied to the boiler, which can
significantly shorten the life of the boiler. Entrained
in make-up water are dissolved minerals, salts
and oxygen. When the fresh, cool make-up
water is heated in the boiler, the minerals fall
out as sediment, the salts coat the inside of the
boiler, and the oxygen escapes as a gas. The
accumulation of sediment eventually isolates the
water from contacting the cast iron. When this
happens the cast iron in that area gets extremely
hot and eventually cracks. The presence of free
oxygen or chloride salts in the boiler corrodes the
cast iron from the inside. More make-up water and
higher concentrations of contaminants damage
the boiler sooner. Our warranty does not cover
oxygen corrosion and sediment-related damage
.
Clearly it is in everyone’s best interest to prevent
this type of failure. You can do your part by
ensuring that your system is leak-free.
D. ATTENTION TO BOILER WHILE NOT IN
OPERATION.
NOTICE:
If boiler is not used during winter time,
it must be fully drained to prevent freeze damage.
1. Spray inside surfaces with light lubricating or
crankcase oil using gun with extended stem so
as to reach all corners.
2. With steam boilers, at end of season add
sufficient water to fill boiler to top of water
column and leave it that way until fall when
water should be drained again to proper level.
If at this time boiler water is dirty, drain water,
flush out boiler, and refill with clean water to
prescribed water level.
3. Always keep the manual fuel supply valve shut
off if the burner is shut down for an extended
period of time.
4. To recondition the heating system in the fall
season after a prolonged shut down, follow the
instructions outlined in Section 8, Paragraphs
A through J.
IMPORTANT IF, DURING NORMAL
OPERATION, IT IS NECESSARY TO
ADD MORE WATER THAN INDICATED
BELOW, CONSULT A QUALIFIED SERVICE
TECHNICIAN TO CHECK YOUR SYSTEM FOR
LEAKS.
EXCESSIVE WATER ADDITION:
(Gallons / Month)
MST288: 0.5
MST396: 0.7
MST513: 0.8
MST629: 1.0
MST758: 1.2
MST892: 1.3
9
Maintenance and Service
(continued)
WARNING
This boiler contains controls which may cause
the boiler to shut down and not restart without
service. If damage due to frozen pipes is a
possibility, the heating system should not be
left unattended in cold weather; or appropriate
safeguards and alarms should be installed on
the heating system to prevent damage if the
boiler is inoperative.
!
