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Idiomas disponibles
USE AND INSTALLATION
INSTRUCTIONS
Multi-functional gas control with High-Low-Off gas flow control. The multifunctional control may be used in automatic
appliances with either intermittent pilot or direct burner ignition.
All the adjustments can be made from the top face and the multifunctional control is suitable for all three gas families.
TECHNICAL SPECIFICATIONS
Two automatic shut-off valves silent operation:
EV1 class B (class A upon request)
EV2 class D (class C upon request)
Servo system pressure regulator (PR)
Step modulating device with mechanical adjustments for High and Low gas rates (SMD)
Step opening ignition device (optional) (SO)
Pilot outlet (plugged upon request) with flow restrictor (RQ)
Inlet and outlet pressure test points
Inlet and pilot strainer (FL)
Connection for burner chamber pressure compensation
WORKING DIAGRAM
GAS
INLET
FL
TECHNICAL DATA
The technical data specified below refer to the European standard, EN 126 "Multi-functional controls for gas-burning
appliances".
Torsion and bending resistance
Automatic shut-off valves EV1
Automatic shut-off valves EV2
Pressure regulator (RP)
Max. outlet pressure range
Min. outlet pressure range
Working temperature range
Max. gas inlet pressure
Opening and closing time of automatic shut-off valves
Assembly position
Gas connections
Outlet pressure during step opening period
GAS FLOW
Q [m
3
/h d=0,6 class B+D]
10
II Family
8
III Family
6
4
I Family
2
II Family
III Family
0
5
10
4
(optional).
D
SMD
PR
EV1
FL
RQ
CLASS B + D
∆p = 5 mbar
3
I Family
(d=0.45)
Q = 7.5 m
/h
∆p = 5 mbar
3
(d=0.6)
Q = 6.5 m
/h
∆p = 5 mbar
(d=1.7)
Q = 8.1 kg/h
CLASS B + C
∆p = 5 mbar
3
(d=0.45)
Q = 5.3 m
/h
∆p = 5 mbar
3
(d=0.6)
Q = 4.6 m
/h
∆p = 5 mbar
(d=1.7)
Q = 5.8 kg/h
SO
EV2
BURNER
BURNER
Group 2
class B
(class A upon request)
class D
(class C upon request)
class B
7-50 mbar
(versioni 240 V: 7-37 mbar)
2-45 mbar
(versioni 240 V: 2-30 mbar)
0-60°C
(a richiesta -20...60°C)
60 mbar
≤ 1 s
any position
Rp 1/2 ISO 7
4 mbar
(other versions upon request)
Flow Q as a function
of the pressure drop ∆ p
CLASS A + D
3
I Family
(d=0.45)
Q = 5.1 m
/h
3
II Family
(d=0.6)
Q = 4.4 m
/h
III Family
(d=1.7)
Q = 5.5 kg/h
CLASS A + C
3
I Family
(d=0.45)
Q = 3.7 m
/h
3
II Family
(d=0.6)
Q = 3.2 m
/h
III Family
(d=1.7)
Q = 4.0 kg/h
GB
MAIN
PILOT
∆p = 5 mbar
∆p = 5 mbar
∆p = 5 mbar
∆p = 5 mbar
∆p = 5 mbar
∆p = 5 mbar
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