7
Regulation of Air Supply to the Burner
The burners do not need a primary air regulator.
Minimum Regulation
•
Turn the gas valve to minimum.
•
Remove the knob and turn the regulator screw
(positioned either on the side of the top or inside the
shaft) clockwise until the flame becomes small but
regular.
N.B.:
In the case of liquid gas, the regulation screw must
be fully screwed in (clockwise).
•
Make sure that, when the knob is turned rapidly high
to low, the flame does not go out.
•
In the event of a malfunction on appliances with the
security device (thermocouple) when the gas supply
is set at minimum, increase the minimum supply levels
using the regulator screw.
Once the adjustment has been made, apply sealing wax,
or a suitable substitute, to the old seals on the by-pass.
Table 1
Liquid Gas
Natural Gas
Burner
Diameter
(mm)
Thermal power
kW (p.c.s.*)
By-Pass
1/100
Nozzle
1/100
Flow*
g/h
Nozzle
1/100
Flow*
l/h
Nomin.
Ridot.
(mm)
(mm)
***
**
(mm)
Fast (R)
100
3,00
0,70
41
86
218
214
116
286
Semi Fast (S)
75
1,90
0,40
30
70
138
136
106
181
Auxiliary (A)
55
1,00
0,40
30
50
73
71
79
95
Supply
Pressures
Nominal (mbar)
Minimum (mbar)
Maximum (mbar)
28-30
20
35
37
25
45
20
17
25
**
At 15°C and 1013 mbar-dry gas
**
Propane P.C.S. = 50.37 MJ/kg.
***
Butane P.C.S. = 49.47 MJ/kg.
Natural P.C.S. = 37.78 MJ/m
3
Mains frequency and voltage of the electrical section
and characteristics of the gas section
Model
Gas section
Electric
section
Class Rated power kW (1)
Voltage
PC 640 GB
II2H3+
7,8 (567 gr/h-G30)
(557 gr/h - G31)
230V~
50-60Hz
(1) The values in g/h refer to the capacities with liquid
gas (Butane, Propane).
Characteristic of the burners and nozzles
This appliance conforms with the following European
Economic Community directives:
-
73/23/
EEC
of 19/02/73 (Low Voltage) and subsequent
modifications;
-
89/336/
EEC
of 03/05/89 (Electromagnetic
Compatibility) and subsequent modifications;
-
90/396/
EEC
of 29/06/90 (Gas) and subsequent
modifications;
-
93/68/
EEC
of 22/07/93 and subsequent modifications.
S
S
A
R
PC 640 ... GB
