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GAS ADJUSTMENTS

CATEGORY II2H3+

Lower Wobbe Index (15°C;1013mbar)

Nominal Delivery Pressure

Minimum Delivery Pressure

10 RFFI

Main Burner: n. 8 jets (ø)

Restrictor

Consumption (15°C; 1013mbar)

Gas Burner Pressure:

max - min

[1 mbar = 10,197 mmc.a.]

5.1

HANGING THE

YPE OF

Supplied By www.heating spares.co Tel. 0161 620 6677

Methane Gas

G20

MJ/m

45.67

mbar

1.30

1.22

Kg/h

mbar

The outlet pressure of the gas cock is obtained by completely loosening the screw on the solenoid. The

maximum pressure of the gas to the burner will be equal to the nominal delivery pressure minus the

head loss within the gas valve.

The boiler can be converted to use either methane (natural) gas (G20)

or LPG (G30 - G31) by an Authorised Service Centre.

The operations that must be performed are the following:

1. Replace the jets on the main burner (see table in section 5);

2. Pay attention to put the gas restrictor if convert the boiler from NG to

GPL and to take it out when pass from LPG to NG;

2. Adjust the maximum and minimum thermal capacity values for the boiler

(see table in section 5);

3. Replace the gas rating plate;

4. Adjust the maximum thermal power setting;

5. Adjust the soft-light feature (open the cover of the regulation screw on the

gas valve (see F

installation requirements).

Liquid Butane Gas

G30

80.58

0.77

---

2.9

----

0.91

8.3

22.9

. 5.1). Rotate clockwise from min. to max. as per

. 5.1

5.1

ABLE

Liquid Propane Gas

G31

80.58

0.77

2.9

----

0.90

29.5