Siemens LMV3 series User Manual

Technical Instructions LMV Series
Document No. LV3-1000
Section 4 Page 8 SCC Inc.
Modulating Gas - Pilot Ignition 2 (Pilot before V1 and V2)
(Fuel Train Options 3, 9, 16, 21, 29)
Legend:
SV
=
Safety valve (optional, outside building)
V1
=
Upstream gas valve (main)
PS
=
Pressure switch
V2
=
Downstream gas valve (main)
VP
=
Valve proving
PV
=
Pilot valve
Notes:
1. Fuel actuator not used with options 9, 16, or 29
2. A single shutoff valve can be used where allowed by code
3. The SKP25 (on valve V2) is typically replaced by an SKP55/75 for pneumatically linked gas trains
Operating Mode
Parameter 201 (fuel 0) or 301 (fuel 1)
Fuel Train
Fuel Actuator
Air Actuator
VSD Speed Feedback (if activated)
Description
3 Gp2 mod • • •
Modulating gas, pilot ignition 2 (pilot before V1 and V2), electronically
linked fuel-to-air ratio
9 Gp2 mod pneu •
Modulating gas, pilot ignition 2 (pilot before V1 and V2), pneumatically
linked fuel-to-air ratio
16 Gp2 mod pneu
Modulating gas, pilot ignition 2 (pilot before V1 and V2), pneumatically
linked fuel-to-air ratio, no actuators
21 Gp2 mod • •
Modulating gas, pilot ignition 2 (pilot before V1 and V2), electronically
linked fuel-to-air ratio
29 Gp2 mod mech • •
Modulating gas, pilot ignition 2 (pilot before V1 and V2), mechanically
linked fuel-to-air ratio

Siemens LMV3 series Specifications

General

Brand	Siemens
Model	LMV3 series
Category	Control Unit
Language	English