Firing; Setting And Checking The Safety Devices - elco klockner EK02B.12 Betriebsanleitung

Start-up

Firing

Setting and checking the safety devices

1-stage burner
m
Warning:
The burner can be fired only if all
the conditions enumerated in the
previous chapters have been met.
· Mount a pressure gauge and a
vacuum gauge on the pump.
· Open the fuel valves.
· Close the thermostatic circuit.
· Unlock the control and safety unit.
The burner is in operation.
· Wait until closure of the pre-heater
thermostat (for burners with a
pre-heater).
· Check the combustion (CO
blackening index).
· Read and adjust the pump pressure
to reach the required rated capacity.
· Adjust the air flow rate by acting
upon hand control 103B.
· Make it rotate toward + :
the flame becomes lighter and the
CO index decreases and vice
2
versa.
· Optimize the firing quality and the
combustion results by modifying
dimension Y.
· Make screw A rotate toward arrow - :
the CO index decreases and vice
2
versa. Modifying dimension Y may
involve the adjustment of the air flow
rate.
· Check the combustion :
– CO index above 12%,
2
– blackening index lower than 1.
Comply with the smoke temperature
value recommended by the boiler
manufacturer to obtain the required
effective output.
· Stop the burner and restart it.
Assess its operation.
· Check the safety devices.
16
2-stage burner
m
Warning:
The burner can be fired only if all
the conditions enumerated in the
previous chapters have been met.
· Mount a pressure gauge and a
vacuum gauge on the pump.
· Open the fuel valves.
· Close the thermostatic circuit.
· Disconnect the four-pole plug
(controller thermostat on 2
stage).
· Unlock the control and safety unit.
The burner is fired at 1
the firing quality.
and
2
· Wait for 8 s and reconnect the
four-pole plug.
The burner is in service at 2
· Check the combustion (CO
blackening index).
· Read and adjust the pump pressure
to reach the required rated capacity.
· Adjust the air flow rate by acting
upon cam I of servomotor Y10.
– increase the air flow rate at
d
2 stage by increasing the value
read on cam I graduated cylinder.
The result is immediate.
– reduce the air flow rate at
2 d stage by reducing the value
read on cam I graduated cylinder.
Disconnect the four-pole plug
during a short period of time and
reconnect it. Cam I steps to its
new position.
· Optimize the firing quality, the
switching to another stage and the
combustion results by modifying
dimension Y.
· Make screw A rotate toward arrow -
: the CO
2
versa. Modifying dimension Y may
involve the adjustment of the air flow
rate.
· Check the combustion :
– CO index above 12%,
2
– blackening index lower than 1.
Comply with the smoke temperature
value recommended by the boiler
manufacturer to obtain the required
effective output.
· Stop the burner.
· Disconnect the four-pole plug.
· Restart the burner at 1
01/2005 - Art. Nr. 13 017 870A
d
fire
st
stage. Assess
d
fire stage.
and
2
index decreases and vice
st
fire stage.
· Check the combustion (CO
blackening index).
Do not act upon the pump pressure and
dimension Y settings any longer.
· Adjust the air flow rate by acting
upon cam IV of the servomotor.
– increase the air flow rate on
d
2 fire stage by increasing the
value read on cam IV graduated
cylinder. Connect the four-pole
plug during a short period of time
and disconnect it. Cam IV steps to
its new position.
– reduce the air flow rate on
st
1 fire stage by reducing the
value read on cam IV graduated
cylinder. The result is immediate.
· Stop the burner.
· Connect the four-pole plug.
· Restart the burner.
Assess its operation on firing, while
switching to another stage or when
increasing or reducing the power.
· Check the safety devices.
Setting and checking the safety
devices
1- and 2-stage burner
Photoconductive cell.
· Test the cell in simulation and loss
of flame.
· Replace housings.
· Check:
– absence of leaks between flange
and front of burner,
– opening of regulator (limiter and
safety) circuit.
· Check combustion under actual
operating conditions (doors closed,
housing in place, etc.) and absence
of leaks in the different systems.
· Note the results on the appropriate
documents and communicate them
to the dealer.
· Put into automatic operation.
· Distribute the information required to
operate the boiler.
· Place the boiler-room plate where it
can easily be seen.
and
2