Ferroli Optimax 25 S wall-mounting gas boiler INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE

Ferroli Optimax 25 S wall-mounting gas boiler INSTRUCTIONS FOR USE INSTALLATION AND MAINTENANCE
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Below you will find brief information for wall-mounting gas boiler Optimax 25 S. Optimax 25 S is a high-efficiency condensing pre-mix appliance for heating with extremely low emissions, running on natural gas or LPG. The boiler consists of an aluminium laminar heat exchanger providing effective condensation of the water vapour contained in the flue gases, permitting extremely high efficiency. The boiler is totally room sealed from the installation room: the air needed for combustion is drawn from outside. The boiler also includes a modulating speed fan, modulating gas valve, pumps, expansion vessel, safety valve, flow sensor, temperature sensors, a safety thermostat and a low pressure sensor.

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Optimax 25 S Instructions | Manualzz

												
											
										
									

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Key Features

  • High-efficiency condensing boiler
  • Pre-mix burner with low emissions
  • Room sealed combustion
  • Modulating speed fan and gas valve
  • Advanced self-diagnosis system

Frequently Answers and Questions

How do I turn the boiler on and off?
To turn the boiler on, open the gas isolation valve, purge the gas supply and switch on the electrical switch. To turn the boiler off, press the key for 5 seconds, close the gas cock and disconnect electrical power.
What is the difference between Summer and Winter mode?
Summer mode turns off the heating function but leaves the frost protection on. Winter mode turns on heating.
What should I do if the boiler displays a fault code?
If the boiler displays a fault code, refer to the 'Faults' section in this manual for possible solutions. If the problem persists, contact a qualified gas engineer.

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