Energy Tech Laboratories New Yorker CL Series ユーザーズマニュアル

water should come out of all air vents when 
opened.

b.  BOILING OUT OF BOILER AND SYSTEM. 

The oil and grease which accumulate in a 
new hot water boiler can be washed out in the 
following manner:

i. 

Remove relief valve using extreme care to 
avoid damaging it.

ii.  Add an appropriate amount of recommended 

boil out compound.

iii.  Replace relief valve.
iv.  Fill the entire system with water.
v.

  Start firing the boiler.

vi.  Circulate the water through the entire 

system.

vii.  Vent the system, including the radiation.
viii. Allow boiler water to reach operating 

temperature, if possible.

ix.  Continue to circulate the water for a few 

hours.

  Stop firing the boiler.

xi.  Drain the system in a manner and to a 

location that hot water can be discharged 
with safety.

xii.  Remove plugs from all available returns 

and wash the water side of the boiler as 
thoroughly as possible, using a high-
pressure water stream.

Refill the system with fresh water.

c.  Add appropriate boiler water treatment 

compounds as recommended by your qualified 
water treatment company.

d.  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 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 (caustic soda), if necessary, to bring the 

PH within the specified range. 

e.  Boiler is now ready to be put into service.

3.  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 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, keeping leakage to less 
than 2 percent of the total water volume each month.

  HINTS ON COMBUSTION

1.  NOZZLES — Although the nozzle is a relatively 

inexpensive device, its function is critical to the 
successful operation of the oil burner. The selection 
of the nozzle supplied with the CL boiler is the 

result of extensive testing to obtain the best flame 

shape and efficient combustion. Other brands of the 
same spray angle and spray pattern may be used but 
may not perform at the expected level of CO

2

 and 

smoke. Nozzles are delicate and should be protected 
from dirt and abuse. Nozzles are mass-produced 
and can vary from sample to sample. For all of 
those reasons a spare nozzle is a desirable item for a 
serviceman to have.

2.  FUEL LEAKS — Any fuel leak between the 

pump and the nozzle will be detrimental to good 
combustion results. Look for wet surfaces in the air 
tube, under the ignitor, and around the air inlet. Any 
such leaks should be repaired as they may cause 
erratic burning of the fuel and in the extreme case 

may become a fire hazard.

3.  AIR LEAKS — Any such leaks should be repaired, 

as they may cause erratic burning of the fuel and in 

extreme cases may become a fire hazard.

 

SUCTION LINE LEAKS -

 

Whatever it takes, The Oil Must Be Free of Air.  This 
can be a tough problem , but it must be resolved.  Try