elco VECTRON F 02.118 DUO Betriebsanleitung Seite 21

Overview
CG115-VT2 gas valve
Technical data / Function
1 Valve 1
2 Valve 2
3 Pressure regulator
4 Adjusting screw for pressure
control device p
W
5 Adjusting screw for transmission
ratio V
6 Adjusting screw for zero offset N
7 Filter
The CG115-VT2 compact unit with the
integrated pneumatic gas/air
proportional pressure control is
designed to be used with multi-stage or
infinitely variable gas fan burners. The
compact unit complies with the following
standards:
EN 88, DIN 3380, DIN 3391, DIN
3392, DIN 3393, DIN 3394, DIN 3398,
DVGW-work sheets and VDE
regulations,
Screened according to VDE/EEC.
8 Input pressure measuring point
9 Output pressure measuring point
10 Connection point for combustion
air pressure
11 Connection point for furnace
pressure
06/2005 - Art. Nr. 13 018 217A
Technical data
Input pressure
liquid gas
Max. pressure difference
Ambient temperature
Connection flange
Fitting position:
– vertically any: 360
– horizontally not overhead: only 180°
of upper sector
Operating mode
When feeding power to the magnet
coils, open valve 1 (1) and valve 2 (2).
The incoming gas is cleaned using a
filter (7). The built-in pressure regulator
(3) regulates the output pressure
required.
The burner gas pressure p
pulse line) of the ratio-pressure
regulator is determined through the
combustion air pressure p
pulse line) as the control input. The air
volume automatically matches the
required gas volume via the
proportional pressure control system.
The furnace pressure p
on as a correction. The values required
for:
– pressure control device set pressure
p
W
– transmission ratio V and
– zero offset N can be set using the
two adjusting screws (5+6).Furnace
pressure p
F
pressure p
L
connection nipples (10 + 11).
p
L
p
F
50 mbar
50 mbar
o
-10 to +60 C
½
R
o
(internal
G
(external
L
can be locked
F
EN
and combustion air
are measured at the
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