Riello RS 70 VA Installation, Use And Maintenance Instructions page 18

CONTENTS
TECHNICAL DATA........................................................................ 2
Accessories (optional): ................................................................... 3
Burner description .......................................................................... 4
Packaging - weight - Approximate measurements......................... 4
Dimensions - Approximate measurements .................................... 5
Standard equipment ....................................................................... 5
Adjustments.................................................................................... 5
Pilot burner ..................................................................................... 6
Operation characteristic ................................................................. 6
Fixing the purging structure to the head assembly......................... 6
Examples of assembly ................................................................... 6
Gas pressure.................................................................................. 7
Gas feeding line ............................................................................. 7
Gas train......................................................................................... 7
Key ................................................................................................. 7
Key ................................................................................................. 7
Adjustments prior to ignition ........................................................... 8
Servomotor..................................................................................... 8
Burner start-up ............................................................................... 8
Burner ignition ................................................................................ 8
Burner adjustment .......................................................................... 9
1 - Ignition output............................................................................ 9
2 - Maximum output........................................................................ 9
3 - Air pressure switch.................................................................. 10
4 - Minimum gas pressure switch................................................. 10
Flame presence check ................................................................. 10
BURNER OPERATION................................................................ 11
Final checks (with burner operating) ............................................ 12
Maintenance................................................................................. 12
APPENDIX ................................................................................... 14
Electrical wiring ............................................................................ 14
Thermal relay adjustment............................................................. 14
Layout of electric panel board .......................................................15
NOTE: The electrical panel layout is included at the end of this manual
N.B.
The figures mentioned in the text are identified as follows:
1)(A) = part 1 of figure A, same page as text;
1)(A)p.8 = part 1 of figure A, page number 8.
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