Gas Direct Ignition (G), 1-Stage, With Valve Proving; Gas Direct Ignition (G), 2-Stage, With Valve Proving - Siemens LME7 Series Basic Documentation

LME73.000...
X7-02
LME73.000...
X7-01
X7-02 X7-04
Building Technologies Division
Infrastructure & Cities Sector

15.2.3 Gas direct ignition (G), 1-stage, with valve proving

Program
X7-04
SV
Figure 41: Connection diagram fuel train gas direct ignition (G), 1-stage, with valve proving

15.2.4 Gas direct ignition (G), 2-stage, with valve proving

Program
SV
Figure 42: Connection diagram fuel train gas direct ignition (G), 2-stage, with valve proving

Note:
When valve proving is activated (e.g. on shutdown), the load on the valve's
terminals (according to chapter Technical data/Terminal rating Outputs) is
restricted.
Fuel valve 1 X7-04 pin 4/fuel valve 2 X7-02 pin 3/auxiliary output



If the terminal load (according to chapter Technical data/Terminal rating
Outputs) is not reduced (max. rated current 2 A, cos >0.4), the design
lifetime will be reached after about 100,000 burner startup cycles!
Basic Documentation LME7...
15 PME73.810...
G
Gas direct 2-stage, with valve proving
G
V1
Rated voltage AC 120 V
50/60 Hz
Rated current 1 A
Power factor cos >0.4
Gas direct 1-stage, with valve proving
V1 V2
V2
V2a
AC 230 V
50/60 Hz
1 A
cos >0.4
96/245
CC1P7105en
29.11.2011