Unigas RX1025.1, Manual

Page: 37 / 80

PART IV: MAINTENANCE
37
Removing the combustion head

Remove the cover C .

remove the electrodes cables;

unscrew the 3 screws V which hold in position the gas manifold G and pull out the complete group as shown in the picture below.

Clean the combustion head by a compressed air blow or, in case of scale, scrape it off by a scratchbrush.
Note: to replace the combustion head reverse the procedure described above having care to place correctly the O ring ( OR ) between
burner and gas manifold.
Electrodes Adjustment
Important Note: Check the ignition and detection electrodes after removing/adjusting the combustion head.
Attention: before adjusting the combustion head, turn the burner off and wait until it gets cold.
ATTENTION: avoid the ignition and detection electrodes to contact metallic parts (blast tube, head, etc.), other-
wise the boiler’s operation would be compromised. Check the electrodes position after any intervention on the
combustion head.
ATTENTION: avoid the electrode to get in touch with metallic parts (blast tube, head, etc.), otherwise the boiler
operation would be compromised. Check the electrode position after any intervention on the combustion head.
C
G
AR
V
C
G A
O
VR
Key
VRT Head adjusting screw
AR Threaded rod
V Fixing screw
G Gas manifold
OR ”O” ring
C Cover
60
6
RX1025.1
ER
EA
EA
EA
RX1030R,
RX1030.1
2÷3 mm