40
GB
The system must be complete with the accessories prescribed by regulations: do not exert mechanical stress on
the components.
The need for space required for the maintenance of the burner and the boiler must also be taken into considera-
tion.
On request it is possible to order the ACCESSORY GROUP KIT including an anti-vibration joint and gas ball
valve.
DIAGRAM FOR THE INSTALLATION OF THE GAS SUPPLY TUBE
GAS CONNECTION
M
LIGHT OIL CONNECTION
M
The dimensions of the tubes (diameter/length) are relative to the type of system (one/two tubes, suction/drop),
and pump features.
The diagram shows the maximum length L allowed for a suction line depending on the difference in height H and
internal tube diameter d, an atmospheric pressure of 1013 mbar and a vacuum of 0.45 bar, and considering the
mounting of 4 elbow joints, a block valve and a non-return valve.
Mono-tube inlet
It is recommend to avoid this solution as much as possible since it has been shown that it can cause significant
malfunctioning to the burner if it is not perfectly installed. If, however, you can not prevent this installation, take
into consideration the following: install a drop system; change the pump by removing the interior dowel; provide
suitable air bleeding on the highest points of the tubing and avoid the formation of air pockets .
1 - Shut-off valve with a 1 bar and <0.5 bar pressure drop warranty seal
2 - Anti-vibration joint
3 - Pressure plug
4 - Gas filter
5 - Gas pressure regulator
6 - Minimum gas pressure control element (pressure switch)
7 - Class A safety solenoid valve. Closing time Tc ≤ 1 sec.
8 - Slow opening or class A solenoid valve with incorporated gas flow control element. Closing time Tc ≤ 1 sec.
9 - Gas flow adjustment element, normally inserted in solenoid valve 7 or 8.
10 - Combustion head
11 - Minimum air pressure control element
12 - Maximum gas pressure control element (if regulator 5 is not provided)
13 - Seal control device (OPTIONAL)
Summary of Contents for LMB TWIN 600
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