-Make a note of the value here. Value from table: ................l/min.

-Identify the volumetric rate of flow at the gas meter and compare it with that of the table.

-Differences greater than +/- 5 % are not allowed: contact the Authorised Service Centre and do not place the boiler in operation.

B)HEATING:

The thermal power is set in the factory at 70% of the maximum power (the potentiometer corresponds to the value on the display). In the event that this setting has to be changed, these steps should be followed:

-open the control panel after having unscrewed the plastic

fastening screws and lift up the rubber stopper protecting the potentiometers (see section 3.7.1.). Rotate the potentiometer PR to the desired point, checking the set thermal power on the display (as described in section 3.6.3.) and on the table below.

Test:

-Turn the selector knob “A” to the flue test position.

-Do not draw hot water.

NOTE: The test of the volumetric rate of flow must be carried out for at least five minutes of boiler operation.

-Identify the volumetric rate of flow from the table and make a note of it here.

Value from the table: ………

.l/min.

-Identify the volumetric rate of flow at the gas meter and compare it with that of the table.

4.4.CHANGING THE TYPE OF GAS

The boiler may be transformed for use with LPG (G30-G31); the operation must be performed by an Authorised Service Centre.

The operations to carry out are the following:

1. Replacement of the nozzle (see table);

2. Replacement of the gas label;

3. Regulation of the slow ignition (refer to section 3.7 and the table in 4.3)

CATEGORY

NATURAL GAS

 

LPG

 

 

 

 

 

 

G20

G30

 

G31

 

 

 

 

 

• Diameter of 6 nozzle holes (mm)

2.7

1.7

 

1.7

• Display of recommended soft-light

70

70

 

70

 

(about 19 kW)

(about 19 kW)

 

(about 19 kW)

 

 

 

 

 

4.5.OPERATING TESTS

-Place the boiler in operation in accordance with the User’s Manual.

-Check the seal on the gas and water sides.

-Check that the ignition operates correctly and visually check the burner flame.

-Check that the domestic hot water is being correctly produced by drawing hot water. Check the rate of flow and/or temperature of the water, depending on the case.

-Check that the condensate drips without difficulty into the discharge.

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Ariston 47-116-17 installation instructions Changing the Type of GAS, Operating Tests

47-116-17 specifications

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