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Legend to the sequence diagrams
Building Technologies
(cont'd)
Indices:
ValveProvingType ↑ Valve proving takes place between phases 30 / 32 and/or
1)
Parameter:
phases 60 / 70
2)
Parameter:
Short / long preignition time for oil only
Short / long oil pump – ON – time
3)
Delayed shutdown within safety time
5)
Parameter:
Normal / direct startup
Normal startup ↑ sequential phase = 10
Direct startup ↑ sequential phase = 79 (when R = ON)
6)
Sequential phase = 24
7)
Only with valve proving during startup
8)
Parameter:
With / without alarm on prevention of startup
9)
Parameter:
With continuous purging the shown output signals are inverted
10)
Fan controlled as before
Postpurging in lockout position = PostpurgeLockout
11)
Parameter:
With / without extraneous light test in STANDBY
12)
With valve proving during startup phase 10
13)
Parameter:
Normal / continuous purging
Normal purging:
Checking for off in 10 and 12, stop to phase-max time ↑ 01
Continuous purging:
Checking for on in 10 and 12, stop up to phase-max time ↑ 01
OilPressureMin, act from ts ↑ no check before fist safety time (LO, HO) or
14)
Parameter:
second safety time (LOgp, HOgp)
GasPressureMin, deact xOGP ↑ pressure switch-min (Pmin) can be
15)
Parameter:
deactivated for oil programs with gas pilot
16)
Parameter:
OilPumpCoupling:
direct_coupl ↑ shutoff valve - oil to be connected to output Oil pump / magnetic
clutch. Output is active when fan is on and for another 15 s after fan is switched
off
18)
Parameter:
Alarm act / deact, deactivated↑ alarm output can temporarily be deactivated (for
current error only)
Only LMV50 and LMV52: Continuous pilot gas/oil: Activated ↑ pilot valve is also
19)
Parameter:
activated in operation
20)
Parameter:
Only LMV50 and LMV52: Extraneous light, pilot phase, operating phase gas/oil
↑ Separate flame supervision possible
22)
Parameter:
Depending on parameter StartPoint Op
Depending on parameter DriveLowfire Gas or DriveLowfire Oil
23)
Parameter:
Depending on parameter HeavyOilDirStart
24)
Parameter:
Air pressure test = deactivated in standby ↑ don't care in phase 10 and 12
25)
Parameter:
Long postpurge time tn3 (PostpurgeT3long)
26)
Parameter:
Only LMV50 ↑ cooling function in standby
27)
Parameter:
28)
Parameter:
Continuous purging
Repetition counter:
k)
Heavy oil direct start
l)
Restricted startup behavior
n)
Restricted safety loop
Basic Documentation LMV5...
5 Sequence diagrams
83/327
CC1P7550en
22.05.2018
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