Riello RS 70/E MZ Bedienerhandbuch PDF herunterladen (Seite 20)

5.1 Notes on safety for the first start-up

5.2 Operations before start-up

³ Ensure that the gas supply Company has carried out the supply line vent operations, eliminating air or inert gases from the piping.

³ Slowly open the manual valves situated upstream of the gas train.

³ Adjust the minimum gas pressure switch to the start of the scale.

³ Adjust the maximum gas pressure switch to the end of the scale.

³ Adjust the air pressure switch to the start of the scale.

³ Adjust the pressure switch for the valve leak detection control device (PVP Kit), if present, according to the instructions supplied with the Kit itself.

³ Check the gas supply pressure by connecting a

pressure gauge to the pressure test point 1)(Fig. 27)

of the minimum gas pressure switch: it must be low-

er than the maximum allowed pressure of the gas

train, as shown on the characteristics label.

³ Bleed the air from the piping of the gas train, con-

necting a plastic tube to the pressure test point

1)(Fig. 27) of the minimum gas pressure switch.

Take the vent tube outside the building so you can

notice the smell of gas.

³ Connect two lamps or testers to the two gas line so-

lenoids to check the exact moment at which voltage

is supplied.

This operation is unnecessary if each of the two so-

lenoids is equipped with an indicator light that sig-

nals voltage passing through.

The first start-up of the burner must be carried out

by qualified personnel, as indicated in this manual

and in compliance with the standards and regula-

tions of the laws in force.

Check the correct working of the adjustment, com-

mand and safety devices.

An excessive gas pressure can dam-

age the components of the gas train

and lead to a risk of explosion.

Before starting up the burner, it is good

practice to adjust the gas train so that

ignition takes place in conditions of

maximum safety, i.e. with gas delivery at

the minimum.

WARNING WARNING

Fig. 23

Minimum gas pressure switch

Fig. 24

Maximum gas pressure switch

Fig. 25

Air pressure switch

Fig. 26

Pressure switch PVP Kit

D3854

D3856

D3855

Fig. 27

D8098

DANGER

WARNING

Start-up, calibration and operation of the burner

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 55 56

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