EXTREMA
22
EN
cod. 3540S060 - 04/2010 (Rev. 00)
3.2 Start-up
B
Checks to be made at first lighting, and after all maintenance operations that involved disconnection from the
systems or an operation on safety devices or parts of the boiler:
Before lighting the boiler
•
Open any on-off valves between the boiler and the systems.
•
Check the tightness of the gas system, proceeding with caution and using a soap and water solution to detect any
leaks in connections.
•
Check correct prefilling of the expansion tank (ref. sec. 4.4 Technical data table).
•
Fill the water system and make sure all air contained in the boiler and the system has been vented, by opening the
air vent valve on the boiler and any vent valves on the system.
•
Fill the condensate trap and check correct connection of the condensate elimination system.
•
Make sure there are no water leaks in the system, DHW circuits, connections or boiler.
•
Check correct connection of the electrical system and efficiency of the earthing system
•
Make sure the gas pressure value for heating is that required.
•
Make sure there are no flammable liquids or materials in the immediate vicinity of the boiler.
Checks during operation
•
Turn the unit on as described in sec. 1.3 Lighting and turning off.
•
Make sure the fuel circuit and water systems are tight.
•
Check the efficiency of the flue exhaust and air ducts while the boiler is working.
•
Check the correct tightness and functionality of the condensate elimination system and trap.
•
Make sure the water is circulating properly between the boiler and the systems.
•
Make sure the gas valve modulates correctly in the heating and domestic hot water production phases.
•
Check proper boiler lighting by doing several tests, turning it on and off with the room thermostat or remote control.
•
Using a combustion analyser connected to the boiler fume outlet, check that the CO
2
content in the fumes, with the
boiler operating at max. and min. output, corresponds to that given in the technical data table for the corresponding
type of gas.
(Because the combustion for this appliance has been checked, adjusted and preset at the factory, it is only neces-
sary to undertake a further combustion check if there are operating performance difficulties or the boiler has been
converted or if essential components have been replaced).
•
Make sure the gas rate indicated on the meter matches that given in the technical data table on sec. 4.4 Technical
data table.
•
Check the correct programming of the parameters and carry out any necessary customization (compensation curve,
power, temperatures, etc.).
(As the parameters for each boiler are factory set, there is no requirement to recheck paramters at the time of com-
missioning unless a gas conversion has been undertaken.)
3.3 Commisioning instructions
General
PLEASE NOTE:
The combustion for this appliance has been checked, adjusted and preset at the factory for operation
on the gas type defined on the appliance data plate.
Having checked:
•
That the boiler has been installed in accordance with these instructions,
•
The integrity of the flue system and the flue seals.
•
The integrity of the boiler combustion circuit and the relevant seals.
Test mode
Proceed to put the boiler into operation as follows:
1. To operate the boiler in test mode, press the CH keys together for 5 seconds (see fig. 30)
2. The boiler lights at percentage ignition (40% dependant on model)
