Appendix; Electrical Connections - Riello RS 34/1 MZ Instrucciones De Instalación, Funcionamiento Y Mantenimiento

NOTE
The RS 34-44/1 MZ -burners have been type-approved for intermittent operation. This means they should be "Compulsorily" stopped at least
once every 24 hours to enable the control box to perform a check of its own efficiency at start-up. Normally, the stopping of the burner is guar-
anteed by the boiler's thermostat/pressure switch. If this is not the case, a time switch should be fitted in series to IN to provide for burner shut-
down at least once every 24 hours.
ATTENTION:
!
- Do not invert the neutral with the phase in the electrical supply line. An inversion would lead to lockout due to firing
failure.
- Replace the components only with original spare parts.

APPENDIX

Electrical connections

1-
2-
3-
5-
6 - 6A
D11833
19
NOTES
The electrical wirings must be carried out in conformity
with the regulations in force in the countries of destination,
and by qualified personnel.
Riello S.p.A. cannot accept any responsibility for modifica-
tions or connections other than those shown in these dia-
grams.
Use flexible cables, in accordance with the regulation
EN 60 335-1.
All the cables to be connected to the burner must pass
through cable grommets.
The use of cable grommets can take various forms; the fol-
lowing way is just one possible solution:
RS 34-44/1 MZ
7-pole socket for single-phase power supply, thermostat/
pressure switch TL
6-pole socket for gas valves, gas pressure switch or
device for checking the valve seal
4-pole socket for thermostat/pressure switch TR
2-pole socket for accessories
Fittings for pipe unions
(Pierce, if it is necessary to use the pipe unions 6A)