Siemens LMV37.4 Series - Heavy Oil Direct Ignition Ho, Ho Mod Without Circulation Control, Ho 2- Stage Without Circulation Control, Ho 3-Stage Without Circulation Control

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Building Technologies Basic documentation LMV37.4... CC1P7546en
7 Basic unit LMV37.4 17.12.2018
7.7.7 Heavy oil direct ignition «Ho», «Ho mod without circulation
control», «Ho 2-stage without circulation control», «Ho 3-
stage without circulation control»
M
0°
0°
t1
p
P
P
LP
Z
AL
V1
V2
0°
5 s5 s 30 s
POC *)
X54
X53
X74
X9-04 pin 2/3
R (ON)
X3-04 pin 1/2
X5-03 pin 1/4
X10-05
pin 2 / pin 3/4
X10-06 pin 1/2
X3-02 pin 1/2
X5-01 pin 2/3
X5-02 pin 2/3
X5-02 pin 2/3
X3-05 pin 1
X4-02 pin 2/3
X6-03 pin 2/3
X8-02 pin 1/3
X7-01 pin 2/3
X7-02 pin 2/3
X3-05 pin 2
Fuel
Air
Function / inputs
Function / outputs
RAST plug
pin number
RAST plug
pin number
HO start
Bild 17e/0913
Figure 68: Program heavy oil direct ignition «Ho», «Ho mod without circulation control», «Ho 2-stage
without circulation control», «Ho 3-stage without circulation control»