Ariston 47-116-17 installation instructions GAS Adjustments

4.	GAS ADJUSTMENTS
4.1.	OVERALL VIEW		NOTE: the values refer to the upper calorific power
Type of appliance		Natural Gas			LPG
Marking on the label of characteristics		LL		E	LPG
Further indications		Yellow adhesive label:		Yellow adhesive label:	Yellow adhesive label:
		calibrated for 'L' type		calibrated for 'H' type	calibrated for LPG
		methane		methane	Wo=24.3 Kw/m3
		Wo=11.5 Kw/m3		Wo=14.1 Kw/m3	(from 20.2 to 24.3
		(from 9.5 to 12.4 kWh/m)		(from 11.4 to 15.2 kWh/m3)	kWh/m3)
Factory setting for the Wobbe Wo index		20mbar		20mbar	50mbar
in kWh/m3		11.5		14.1	24.3
Factory setting of the thermal capacity
for the production of hot water				Maximum thermal power
Factory setting of the thermal capacity				70% Maximum thermal power
for the heating

4.2.PRELIMINARIES

Check that the indication for type of appliance (category and type of gas calibration) reported on the label of characteristics corresponds to the gas family / group of the gas supply.

A	The type of of appliance does not		The appliance cannot be installed or put into operation.
	correspond to the gas family of the
	gas supply
B	The type of appliance corresponds	Domestic hot water:	Check the regulation according to section 4.3
	to the gas family of the gas supply	Heating:	In the event of the heating power setting being different from the
			thermal power setting required, the gas must be adjusted as in
			section 4.3. Otherwise, it is enough to check the
			correspondence.
C	The type of appliance does not	Domestic hot water:	Transform the boiler in accordance with section 4.5, after which:
	correspond to the gas supply group	Heating:	Check the regulation in accordance with 4.3
	(but corresponds to the family).		Carry out the gas regulation in accordance with point 4.3 in
			keeping with the thermal power requested.

4.3.GAS REGULATION

To regulate the gas, the sequence described below must be followed.

-Unscrew by 2 to 3 rotations the sealing screws marked “PE” of the pressure measurement inlet nipple

-Connect up a pressure gauge

-Place the appliance in operation in accordance with the usage manual

-Measure the connection pressure (dynamic pressure)

4.3.1.INLET PRESSURE TEST

This pressure, for methane gas, must be between 18 and 25 mbar. In the event that the pressure is outside of the above range, the boiler must not be placed in operation.

-Turn off the boiler.

-Remove the pressure gauge.

-Screw in the sealing screws of the pressure measurement inlet nipple and check the seal.

If it proves impossible to eliminate the defect, contact the gas supply board.

4.3.2.REGULATION OF THE THERMAL POWER

For the regulation of the gas in the ecoGENUS, two separate operations are required.

A)Domestic hot water side (test only)

B)Heating side (regulation and test)

A)DOMESTIC HOT WATER:

The thermal power for the hot water is set in the factory at the maximum power.

For this reason the boiler does not need any regulation of the gas from the "domestic hot water" side, just a test using the volumetric method at the gas meter:

-Make sure that there are no other gas appliances in operation during the test.

-Place the boiler in operation in accordance with the usage manual and draw hot water (tap totally open, temperature knob at 9).

NOTE: the test of the volumetric rate of flow must be carried out for at least two minutes of boiler operating time.

-Identify the volumetric rate of flow for the maximum thermal power from the table at the end of this section.

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