Adjusting Combustion Process; Important - Ecoflam Multicalor 170.1 Manual De Instrucciones

CONNECTION DIAGRAM FOR BURNERS WITH SEPARATE PILOT
To be supplied by the installer
141
143
Gas
To be supplied by the installer
Before starting the burner, make sure it is mounted correctly. Then check connections
are correct according to the diagram and piping is appropriate to the system. Before
connecting the burner to the electricity supply, make sure voltage corresponds to burner
plate data. The connection diagram and start-up cycle are shown separately. For wiring
from control box to burner, see the enclosed connection diagram. Pay particular atten-
tion to neutral and phase connections : never exchange them!. Vent air and impurities
of gas pipe. Check gas pressure conforms to the limits stated on the burner plate when
connecting a master gauge to the test port provided on the burner. Blower motor starts
and pre-purging begins. Since pre-purging has to be carried out with the max. air deli-
very, the burner control circuit turns the air damper to the max. delivery position by the air servocontrol in approxima-
tely 30 seconds time. When the servocontrol is fully open, a signal to the electronic control unit starts the 66 seconds
pre-purge cycle. At the end of the prepurging time, the air servocontrol gets to the Low Flame position so that burner
ignition is ensured at min. output. Simultaneously the ignition transformer receives voltage and after 3 seconds (pre-
ignition) opens the pilot gas valve. Fuel flows to the combustion head and ignites. Two seconds after pilot gas valves
have opened, the ignition transformer is excluded from the circuit. In case of no ignition the burner goes to lock-out
within two seconds. After 6 sec. open the working gas valve, governed by the gas firing butterfly valve.Now the burner
is operating at the min. firing rate (about 30% of the max. firing rate). The air servocontrol runs at the Low Flame
position and in case the temperature control has to be set at the max. output it goes to a fully open position of air dam-
per and butterfly valve. During the burner-off periods the air damper closes up fully.
IMPORTANT: to obtain the right adjustment of the combustion and thermal capacity it is important to analyze the
reducts of combustion with the aid of suitable instruments. The combustion and thermal capacity adjustment is done
simultaneously, together with the analysis of the products of combustion, making sure that the measured values are sui-
table and that they comply with current safety standards. On this matter, please refer to the table and figure below.
THESE OPERATIONS MUST BE DONE BY PROFESSIONALLY-QUALIFIED TECHNICIANS.
NOTE: ALL SAFETY DEVICES (AIR PRESSURE SWITCH, MINIMUM GAS PRESSURE SWITCH, GAS
SOLENOID VALVES AND GAS GOVERNOR) SHALL BE DULY SEALED AFTER CALIBRATION AND BUR-
NER START UP BY ECOFLAM'S TECHNICIANS.
CONNECTION DIAGRAM FOR BURNERS WITH SEPARATE PILOT
(gas train Siemens VGD...)
(GAS TRAIN SIEMENS VGD...)
107
155
160
170
313
144
142
151
Air
OPERATION OF BURNER WITH GAS
ADJUSTING THE COMBUSTION PROCESS
420010243004 MULTICALOR 170.1-200.1 PR/PR
100 Burner
100
107 Pilot gas filter/governor 107
120
120 Air damper
141
141 Ball valve
142
142 Gas filter
143
143 Antivibration coupling
144
144 Gas governor
150
150 Batterfly valve
151
151 Gas train Siemens VGD....
155
155 Pilot gas train
160
160 Kit tightness control (optional)
170
170 Kit tightness control for pilot gas valve (optional)
313
313 Min.gas pressure switch
314
314 Max.gas pressure switch (optional)
349
349 Air/gas damper motor
314
150
120
M
349
pag.19
Burner
Pilot gas filter/governor
Air damper
Ball valve
Gas filter
Antivibration coupling
Gas governor
Batterfly valve
Gas train Siemens VGD....
Pilot gas train
Kit tightness control (optional)
Kit tightness control for pilot gas valve (optional)
Min.gas pressure switch
Max.gas pressure switch (optional)
Air/gas damper motor
100
SAgG
2
0=STOP
1 3
1=OIL
0
2=AUTO
3=GAS
EN