Protherm 100 Manual for instruction and use - page 5
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is automatically ignited. It is ignited by an
ignition spark and its flame is detected by
an ionisation electrode. After the ignition
burner has steadied up and the ionisation
circuit closed, the main gas supply valve
to the main burner opens. If the ignition
burner does not ignite within a safety time
T
s
= 25 seconds, the gas supply to the
main burner and to the ignition burner is
automatically shut off. If the flame during
normal boiler operation goes out, the au-
tomatic ignition system will repeat the igni-
tion cycle of the ignition burner. If the loss
of ionisation prevails, the boiler will switch
to a fault status (the light of the “Unlock
automatic fault signalling system” button
on the control panel lights up). After a
waiting time of approximately 10 seconds,
the fault status can be manually cancelled
by pressing the RESET button.
The ignition burner remains on while the
main burner is on.
In the event of power supply failure, the
gas supply to the burner is automatically
shut off. When power supply is restored,
the boiler will automatically restart itself.
KLO
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1. Main control panel
2. Chimney thrust detec-
tor system cover
3. Fume exhaust
4. Chimney thrust detector
5. Fume thermostat
6. Heating water outlet
7. Gas supply
8. Cast iron body seg-
ments
9. Heating water inlet
10. Combustion chamber
11. Secondary air supply
12. Supply burning air
13. Burner
14. Supply burning air
15. Jet
16. Combining pipeline gas
17. Operator burner
18. Gas armatures
*
19. Boiler covering
20. Case for sensors
21. Main control panel
22. Automotive ignition
automatics
* For models 130-150 KLO / KLO EKO is used only 1 gas armature.
KLO EKO
KLO
The combustion fumes collector is con-
nected to a chimney thrust detector and
behind it is terminated in a boiler exhaust
outlet (on a fumes flue connection). The
collector is equipped with a removable
cleaning lid, which is accessible after re-
moving the top boiler’s cover.
The chimney thrust detector system
(SKKT) works on the principle of monitor-
ing the combustion fumes temperature
inside the collector. A thermostat situated
inside the collector reacts to an increase
of the combustion fumes temperature
caused by a reduced chimney effect will
shut the boiler down (by shutting off gas
supply to the burner).
The boiler has covers, which are rigidly
fixed to the rear and side-wall, a remov-
able wall and a removable top cover. The
boiler’s control panel is located in the top
section.
The boiler body base is a single steel-
base on which the body of the boiler and
the covers are mounted.
Boiler Installation Guidelines
The PROTHERM KLO / KLO EKO boil-
ers can be put into operation only by an
authorised service organisation in accord-
ance with UBP SR Public Notice No. 74/
1996. Installations, putting into operation,
warranty and post-warranty service are
done by a network of manufacturer’s con-
tractual service organisations, which meet
the requirements specified above.
Connecting the boiler to gas supply
The PROTHERM Series KLO - ZP / KLO
EKO – ZP boilers are designed to run on
natural gas with nominal pressure in the
distribution network 1.8 kPa (18 mbar) and
a calorific value usually claimed between
9 and 10 kWh/cum. The internal gas dis-
tribution system as well as the gas meter
must be of sufficient size, taking into ac-
count also other user’s gas appliances.
The gas supply pipe must have an internal
diameter of at least the same size as the
gas connection pipe on the boiler (which
depends on the boiler size), but preferably
one size bigger.
The PROTHERM Series 65 – 85 KLO - P /
65 - 85 KLO EKO - P boilers are designed
to run on propane gas. Propane gas calo-
rific value is given between 12.8 and 13
kWh/kg. Because supplying boilers from
pressure cylinders is problematic, particu-
larly from the capacity and handling point
Fig. 3
Schematic operation diagram