Siemens LMV3 series, Технические инструкции

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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
O
p
e
ra
ti
n
g
M
o
d
e
Pa
ra
m
e
te
r
2
0
1
(
fu
e
l 0
)
o
r
3
0
1
(
fu
e
l 1
)
Fuel Train
Fu
e
l A
ct
u
at
o
r
A
ir
A
ct
u
at
o
r
V
SD
S
p
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F
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(i
f
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)
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