Install Instructions

20
11. Drain boiler. Open all radiator valves. Reinstall
all supply main air valves. Open shut off valve in
Hartford Loop.
12. When boiler has cooled down sufciently (iron
sections are not too hot to touch), close the drain
valves at boiler and in return main and feed water
slowly up to normal level in boiler.
13. Follow Lighting or Operating Instructions to place
boiler in operation. See Figure 16 for
intermittent ignition (EI).
14. Allow boiler to steam for 10 minutes.
15. Follow instructions to TURN OFF GAS TO
APPLIANCE. See Figure 16 for
intermittent ignition (EI).
16. Draw off one quart of water from bottom gauge
glass tting and discard. Draw off another quart
sample and if this sample is not clear, repeat the
cycle of draining the boiler and return main and
relling the boiler until sample is clear.
If the boiler water becomes dirty again at a later date due to
additional sediment loosened up in the piping:
1. Follow instruction to TURN OFF GAS TO
APPLIANCE. See Figure 16 for intermittent
ignition (EI).
2. Close shut off valve in Hartford Loop and open
drain valve in return main.
3. Follow Lighting or Operating Instructions to place
boiler in operation. See Figure 16 for intermittent
ignition (EI).
4. Allow condensate to ow to drain until it has run
clear for at least 30 minutes while feeding water to
boiler so as to maintain normal water level.
5. Follow instructions to TURN OFF GAS TO
APPLIANCE. See Figure 16 for intermittent
ignition (EI).
6. Drain boiler, open shut off valve in Hartford Loop,
then repeat step R. above.
T. Add Boiler Water Treatment.
1. Low pressure steam boilers such as this CGS-A
Series should be maintained with appropriate water
treatment compounds. Add suitable water treatment
compounds as recommended by your qualied water
treatment company.
2. Remove temporary drain valve and overow piping
and reinstall safety valve. Boil or bring water
temperature to 180°F promptly in order to drive off
the dissolved gases in the fresh water.
3. Make pH or Alkalinity Test.
After boiler and system have been cleaned and
relled 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 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 some of the washout chemical,
if necessary, to bring the pH within the specied
range.
4. Boiler is now ready to be put into service.
U. Combustion Chamber Burn-off
1. The mineral wool combustion chamber panels
contain a cornstarch based binder that must be
burned out a 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 re 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.
V. Review User's Information Manual and system
operation with owner or operator.
W. Post instructions near boiler for reference by owner
and service personnel. Maintain instructions in legible
condition.
VII. System Start-up (continued)