Electrical Data; Mechanical Connections - Sit NOVA 826 Manual De Instrucciones

Q [m 3 /h d=0,6 class B+D]
12
10
8
2
6
1
4
2
0
5 10 15
Pu [mbar]

ELECTRICAL DATA

AUTOMATIC SHUT-OFF VALVES
Voltage (AC)
240 V 50 Hz
220 V 50 Hz
220 V 60 Hz
24 V 50 Hz
24 V 60 Hz
Electric protection rating
STEP MODULATING DEVICE
Voltage (Full wave rectified AC)
240 V
220 V
24 V
Electric protection rating
INSTALLATION
826 NOVA complies with current safety standards.
Nevertheless, its installation on appliances must be verified in accordance with the specific standards for each
installation. In particular, it is necessary to ensure that requirements relating to the number and class of the automatic
shut-off valves and to the class of the pressure regulator are met. All the installation, setting and adjustment operations
must be carried out exclusively by qualified personnel on the basis of the specific characteristics of the appliance.
The multifunctional control is designed exclusively for installation inside gas appliances and is not for outdoor use.

MECHANICAL CONNECTIONS

General recommendations
Do not tamper with sealed parts. Do not slacken assembly screws. Do not remove labels. Avoid blows (knocks, falls
etc.). Only remove dust caps when installing. Do not exceed recommended torques. Ensure that the gas flows in the
direction shown by the arrow on the multifunctional control body. Prevent foreign matter from getting into the
multifunctional control during installation. In particular, check the cleanliness of the inlet and outlet pipes. Do not
subject the multifunctional control to bending in excess of 35 Nm and to torque in excess of 25 Nm. Use only the
specified spanner grips when making the connections.
Main gas connection
The connection must be made using gas pipes with Rp 1/2 ISO 7 thread. Torque: 25 Nm. If, alternatively, flanges
(available on request) are used, first screw the pipes onto the flanges and then the flanges to the multifunctional
control. Recommended torque for flange retaining screws: 3 Nm.
Curve
1
2
EV1
Consumption (mA)
Class A o B
50
40
45
450
450
IP 54 using connector type 002
and screw code 0.960.125
Consumption (mA)
P 54 using connector with intergral rectifying
circuit type 350 with gasket and screw
Regulated flow Q
in a function to outlet pressure Pu,
according to EN 88.
Inlet pressure range
Gas
Nominal Max Min
2H 20 25 17
2 L 25 30 20
EV2
Consumption (mA)
Class D o C
25
20
25
210
220
IP54 using connector type 160
and gasket and screw code 0.960.104
30
30
270
5