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INSTALLATION AND SERVICING
MANUAL
RIO 140
Floor Standing Combination Boiler
providing
Central Heating and Mains Fed Domestic Hot Water
For use with Natural Gas (G20) - Natural Gas model only
or Propane (G31) - Propane model only
EC Certificated for Safety and Performance
It is important that the boiler is installed and serviced
as described in these instructions
After installing the boiler leave these instructions with the User
Summary of Contents for RIO 140
Page 33: ...10 WIRING DIAGRAMS 33 10 1 ILLUSTRATED WIRING DIAGRAM ...
Page 34: ...10 WIRING DIAGRAMS 34 10 2 FUNCTIONAL FLOW WIRING DIAGRAM ...
Page 35: ...11 SEQUENCE OF OPERATION CHARTS 35 11 1 AUTOMATIC IGNITION SEQUENCE ...
Page 36: ...11 SEQUENCE OF OPERATION CHARTS 36 11 2 OPERATION IN CENTRAL HEATING MODE ...
Page 37: ...11 SEQUENCE OF OPERATION CHARTS 37 11 3 OPERATION IN DOMESTIC HOT WATER MODE ...
Page 47: ...NOTE 47 ...
Page 54: ...6 ELECTRONIC TIMER Description of controls see Figs 3 and 4 ...