PART II: INSTALLATION
14
GAS TRAIN CONNECTIONS
The diagrams show the components of the gas train included in the delivery and which must be fitted by the installer.The diagrams are
in compliance with the current laws.
Procedure to install the double gas valve unit:
two (2) gas flanges are required; they may be threaded or flanged depending on size
first step: install the flanges to prevent entry of foreign bodies in the gas line
on the gas pipe, clean the already assembled parts and then install the valve unit
check gas flow direction: it must follow the arrow on the valve body
VGD20: make sure the O-rings are correctly positioned between the flanges and the valve
VGD40 and MBE: make sure the gaskets are correctly positioned between the flange
fasten all the components with screws, according to the following diagrams
make sure bolts on the flanges are properly tightened
To mount the gas train, proceed as follows:
NOTE:
the bellows unit, the manual cutoff valve and the gaskets are not part of the standard supply
WARNING: before executing the connections to the gas pipe network, be sure that the manual cutoff valves are
closed.
ATTENTION: it is recommended to mount filter and gas valves to avoid that extraneous material drops inside the
valves, during maintenance and cleaning operation of the filters (both the filters outside the valves group and the
ones built-in the gas valves).
ATTENTION: once the gas train is mounted, the gas proving test must be performed, according to the procedure
set by laws in force.
1
-
In case of threaded joints: use proper seals according to the gas used- in case of flanged joints: place a gasket between the ele-
ments
2
Fasten all the items by means of screws, according to the diagrams showed, observing the mounting direction for each item
Keys
1A..1E Gasket
2 Gas filter
3 Gas valves group
4 Bellows unit
5 Manual valve
”direction” arrows for installation
gas supply network
Note: the figure is indicative only
1A
1B
1C
1D
1E
2
4
5
3
Summary of Contents for K750A
Page 1: ...M039462NB 0 1 11 2021 BURNERS BRUCIATORI BRULERS BRENNER QUEMADORES K750A K890A K990A...
Page 2: ...2 1 CO 2 a a RESET 3 3a...
Page 34: ...34...
Page 35: ......
Page 37: ...LME73 000Ax PME73 831AxBC LME73 831AxBC M12921NB Rel 1 2 02 2016...
Page 41: ...5 Info EK LME73 I LED EK LED 1 2 2 LED tw OFF OK OK T Led Led Led Led Led...
Page 42: ...6 1 515 1 259 01 0...
Page 43: ...7 2 515 1 259 01 0...
Page 48: ...12 2x 23 21 23 F A code Service OEM info enter Info Service enter reset ESC...
Page 49: ...13 Info LME73 Info Service...
Page 52: ...16...
Page 57: ...21 41 42 60 123 140 242 243 244 245 259 01 SO OEM LME73 831AxBC...
Page 58: ......
Page 59: ......
Page 62: ......
Page 63: ......
Page 64: ......
Page 65: ......
Page 66: ......
Page 67: ......
Page 68: ......
Page 69: ......
Page 70: ......
Page 71: ......
Page 72: ......
Page 73: ......
Page 74: ......
Page 75: ......
Page 76: ......
