Bryan Boilers Forced Draft Steam Boilers 사용자 설명서

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
PURPOSE OF WATER TREATMENT 
Water treatment is required for satisfactory 
operation of the boiler. It must be devised to 
prevent depositing of scale and to prevent 
corrosion from acids, oxygen and other such 
harmful elements that may be in the water supply. 
A qualified water treatment chemist should be 
consulted and the water systematically treated.  
 
 
OBJECTIVES 
The basic objectives of water treatment are: 
 

1. Prevent the accumulation of scale and 
deposits in the boiler. 
2. Remove dissolved gases from the 
water. 

 

3. Protect the boiler against corrosion. 

 

4. Maintain the highest possible boiler 
fuel efficiency. 

 

5. Decrease the amount of boiler down 
time from cleaning. 

WATER SOFTENER 
It is highly recommended that a zeolite water 
softener be used for all make-up to the boiler. It is 
intended that this be used in addition to the 
chemical treatment of the boiler. Water softening 
removes calcium and magnesium, the primary 
causes of hard boiler scale. 
 
CONTINUOUS MONITORING REQUIRED 
Water treatment should be checked and 
maintained whenever the boiler is operating. The 
boiler operator should be sure that the boiler is 
not operating for long periods without proper 
water treatment. Water treatment may vary from 
season to season or over a period of time. 
Therefore, the water treatment procedure should 
be checked not less than four times a year, and 
possibly more frequently as the local water 
conditions may indicate.  
 
 
 

 
PURPOSE 
Carbon (soot) is an insulator and is corrosive. 
The heating surface of a boiler must be kept free 
from soot accumulation to keep the boiler 
operating at its highest efficiency and to avoid 
damage from corrosion. 
 
SOOT REMOVAL 
If the yearly inspection of the boiler tube surfaces 
reveals a build-up of either soot or rust (usually 
due to condensation), the tubes should be 
thoroughly brushed. (Tube cleaning brushes are 
available from Bryan Steam) To inspect and, if 
necessary, clean the tube surfaces and flue 
collector, first remove the tube access panels. 
Examine the exterior of the tubes for evidence of 
soot or rust. Using a flashlight, carefully look 
between the tubes. There should be an 
unobstructed opening between all tubes, and the 
top surfaces of the tube must be free from soot 
accumulation. Also inspect the interior of the flue 
collector. Brush or vacuum the soot from all 
surfaces. Be sure to cover atmospheric burners 
with a protective cover during cleaning to prevent 
soot from falling into them. 

If the buildup of soot is appreciable, the flue gas 
venting system must be thoroughly inspected 
internally as well, and cleaned as necessary. 
 
                                                                  

If either soot or condensation is apparent, a boiler 
service technician should be consulted. The 
presence of soot indicates poor combustion and 
possibly hazardous boiler operation. Failure to do 
so may result in fire, explosion potential, or 
asphyxiation. A combustion test and burner 
adjustments should be undertaken at once. 
 
Rust on the tubes indicates that boiler-operating 
temperatures are too low. The set point of the 
boiler operating control must be no less than 
130 F for natural gas or propane firing, and 
170 F for oil fired boilers. Boilers equipped with 
outdoor reset control must also follow these 
limits.