Normal operation
40
6
Figure
5.4
R15 Venturi replacement
A
Replace the Venturi by installing the one supplied with the gas change kit:
•
Black plastic Venturi for gas change to G30/G31/LPG
•
Aluminium Venturi with yellow air diaphragm for gas change to G20/G25/
G25.1/G25.3/G27/G2.350
A
5.3.2
R60/R80
How to change gas (Figure 5.5
40)
1.
Cut o
ff
electric power and gas supply.
2.
Remove the gas pipe (A) and remove the gasket (B).
3.
Unscrew the four
fi
xing screws (C) of the gas
fl
ange (D) and
remove it without losing or damaging the o-ring (E).
4.
Remove the gasket (F), taking care not to damage or lose it.
5.
Replace the nozzle (G), checking the concordance with Table
5.8
39, and reinstall the gasket (F).
6.
Fit the gas
fl
ange (D) using the four
fi
xing screws (C) and
fi
t
the gas pipe (A), replacing the gasket (B).
7.
Replace the sticker indicating the gas type on the appliance
with the sticker for the new gas type.
8.
Adjust the appliance for the new gas type, adjusting the
burner pressure as described in Paragraph 5.2.2
Figure
5.5
Gas changeover for gas unit heater
A
Gas supply pipe
B
Gasket
C
Fastening screws
D
Gas
fl
ange
E
O-ring
F
Gasket
G
Nozzle
H
Gas valve
A
B C
D
E F G
H
6
NORMAL OPERATION
This section is for the end user.
6.1
WARNINGS
General warnings
Prior to using the appliance carefully read the warnings
in Chapter III.1
4, providing important information
on regulations and on safety.
First start-up by TAC
First start-up may exclusively be carried out by a Robur
TAC (Chapter 5
34).
Never power the appliance o
ff
while it is running
NEVER power the appliance o
ff
while it is running (ex-
cept in the event of danger, Chapter III.1
4), since
the appliance or system might be damaged.
6.2
SWITCH ON AND OFF
Routine switching on/o
ff
The appliance may exclusively be switched on/o
ff
by
means of the suitably provided control device.
Do not switch on/o
ff
with the power supply switch
Do not switch the appliance on/o
ff
with the power
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