08.10.2018 Rev. 04
15
Electrical Connection
Perform electrical connections according to the diagram provided with the burner. Follow
general security rules during installation of electric wiring and making connections. Connect the
earthing terminal in electric panel to the earthing installation.
8.
COMMISSIONING
8.1.
General Controls
•
Are the electrical connections correct?
•
Has the sealing of gas lines been controlled?
•
Is the pressure provided to the burner suitable? (max. 50 mbar)
•
Is the suction ventilator connected to the combustion chamber working?
•
Is the wall element checking combustion chamber temperature working correctly?
8.2.
Operating Gazoram Burner
•
Verify that the combustion chamber suction ventilator is working.
•
Insert plug sockets, which ensure electric connection, in their holes.
•
Since the gas valve is turned off, gas pressure switch will not let the burner to work.
•
Turn on the gas shut-off valve.
•
Having detected gas pressure, gas pressure switch will send operating voltage to the program relay
and relay's operational steps will commence.
•
When fan motor starts and pre-purge commences, air pressure switch will verify the existence of
combustion air and commence relay ignition operation.
•
Ignition step is composed of two stages: pre-ignition and final (safety) ignition. Gas solenoid
valve turns on at the end of pre-ignition period (3 seconds) and flame is formed; ignition is active
for 3 seconds more despite formation of flame.
•
After the flame detector detects flame existence, burner continues its normal operation. Working
load is automatically changed by the proportional control device according to the signal arriving
from combustion chamber heat sensitive element.
•
In that case, commissioning process is successful.
8.3.
Function Controls
a.
First commissioning with closed gas valve
Following fault, relay must switch to fault position once the safety period ends.
b.
In first commissioning, turn off the gas valve while burner is working.
After the flame goes out, relay should transit to fault position.
c.
Cut off air pressure switch during pre-purge or working in first commissioning
Burner control unit should immediately bring the device to fault position.
d.
Bridge the air pressure switch before starting.
Fan motor starts working for 2-3 seconds and switches to fault at the end of this period. In
second try, device starts the fan motor again and makes another try after 10 seconds. If the
contacts of the air pressure switch are still bridged, it switches to fault position. As soon as
the unit starts working, it checks if the air pressure switch is brought to ON position from
OFF position.
Summary of Contents for GRM 15
Page 9: ...08 10 2018 Rev 04 8 3 2 Burner Components...
Page 11: ...08 10 2018 Rev 04 10 4 GAS FLUE GAS AND HEATING WATER SCHEMA...
Page 13: ...08 10 2018 Rev 04 12 5 2 Burner Dimensions...
Page 24: ...08 10 2018 Rev 04 23 12 ELECTRIC DIAGRAM...
Page 25: ...08 10 2018 Rev 04 24...
Page 26: ...08 10 2018 Rev 04 25...
Page 27: ...08 10 2018 Rev 04 26...
