16
Correcting procedure
Switch on the boiler and measure starting current strength by ammeter or split-
electromagnetic instrument after 30 seconds at the return pipe temperature of +15 ÷ +20
º
C. There are three possible situations: value of the starting current strength is lower
(higher) than the table value specified in the Table 2 or value of the starting current
strength is equal to the table value specified in the Table 2.
Table 2
No.
Boiler brand
(name of the boiler)
Power,
kW
Voltage,
V
Phases
Starting current strength of
the boiler at the return pipe
temperature of +15
º
C,
A
Max. current strength of
the boiler in the specified
mode at the return pipe
temperature of +60
º
C,
A
1
“Ochag-2”
2
220
1
4
9,1
2
“Ochag-3”
3
220
1
5
13,7
3
“Ochag-5”
5
220
1
10-12
23
4
“Ochag-6”
6
220
1
15-18
27
5
“Geyser-9”
9
380
3
6-8 per phase
13,7 per phase
6
“Geyser-15”
15
380
3
8-10 per phase
23 per phase
7
“Vulkan-25”
25
380
3
12-15 per phase
37 per phase
Value of the starting current strength is lower than the table value specified in the
Table 2.
The correcting procedure of the starting current is performed in the following way:
•
Clear sodium salt solution is prepared (1 teaspoon of sodium salt is dissolved
in 200 grams of hot water). This is an approximate volume of the solution per
100 liters of water filled in the heating system.
•
Single dose of the salt solution which is filled in 20 liters of water drawn off
from the heating system is defined depending on the difference between
measured value of the starting current strength and it’s table value (Table 2)
for your boiler (power of your boiler) and the volume of water filled in the
heating system.
•
Stir the dose of the salt solution and the water drawn off from the heating
system carefully.
•
This mixture is filled in the heating system through the drain valve by means
of the “Malysh” type pump.
•
Draw off 20 liters of water from the system once again and fill the heating
system with water without salt solution.
•
Switch on the circulation pump for 20-30 minutes. Running time of the
circulation pump depends on the size of the heating system and the volume
of water filled in the heating system. The switching on of the circulation pump
is required for equalization of the water parameters in the heating system.
•
Switch on the boiler and measure starting current strength after 30 seconds
at the return pipe temperature of +15 ÷ +20
º
C.
•
Switch off the boiler and compare the measured value of the starting current
strength with the table value for your boiler (Table 2). It is necessary to
repeat the correcting procedure in the event that the measured value of the
starting current strength is different from the table value. During the
execution of the correcting procedure the temperature on the inlet of the
boiler should lie in the range +15 ÷ +20
º
C.
•
It is necessary to switch on the heating system after equalization of the
measured value of the starting current strength and the table value. Once the
temperature on the “Inlet” sensor has reached the value of +60
º
C, measure
the maximum current strength and compare it with the value specified in the
Table 2. Perform the correcting procedure once again as the need arose.
It is necessary to note that the value of the starting current strength is a testing
value which simplifies the process of performing the correcting procedure. The correcting
procedure is finished when the value of maximum current strength of the boiler at the
