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Siemens Building Technologies
Basic Documentation LMV5...
CC1P7550en
HVAC Products
4 Burner control
13.08.2004
Assignment of times:
t0
Postpurge lockout position
Depending on the parameter, VP takes place:
between Ph62 and Ph70 or/and
between Ph30 and Ph32
t01
MaxT_SafetyPhase
t10
MinTimeHomeRun
Signal ON
Signal OFF
Next phase
t21
MinT_StartupRel
t22 FanRunupTime
01
00, Rep = 0
12, Rep > 0
t30 PrepurgePt1
t34 PrepurgePt3
t36 MinOnT_OilPump
t38
PreignitionT_Gas / Oil
Parameter direct start
Checking with controller on
Deviation
→
10
No Rep. decrement
t42
PreignitionT_Off
10
t44
Interval1 Gas / Oil
70
t52
Interval2 Gas / Oil
Without VP70 with VP80
t62
MaxTimeLowFire
62 t70
AfterburnTime
Stop, up to Ph – max. time
→
01
t74
PostpurgeT1 Gas / Oil (tn1)
Stop, up to Ph – max. time
→
10
t78
PostpurgeT3 Gas / Oil (tn3)
t80 VP_EvacTime
0 – 3 s
01
00, Rep = 0
12, Rep > 0
t81 VP_TimeAtmPress
t82 VP_FillTime
0 – 30 s
01
00, Rep = 0
12, Rep > 0
t83 VP_TimeGasPress
tmx1 MaxDampRunTime
0 – 3 s
01
00, Rep = 0
12, Rep > 0
tmx2 MaxT_StartupRel
tmx3 MaxT_CircHOil
Param.
79
10
TSA1 SafetyTime1
TSA2 SafetyTime2
Input: don´t care
Output: OFF
tv
PrepurgeTime_Gas / Oil
Output:
ON
Permissible positioning range
1)
Parameter: With / without PM
2)
Parameter: Short / long preignition time for oil only
Short / long oil pump – ON – time
3)
Delayed shutdown within TSA1 + TSA2
4)
Parameter: Output as startup signal / PM relief valve
In Standby: actuator can travel within the permissible po-
sitioning range, but is always driven to the home position.
Must be in the home position before changing the phase
5)
Parameter: Normal / direct startup
0°
Position as supplied (0°)
Normal
startup
→
sequential phase = 10
Direct startup
→
sequential phase = 79
90°
Actuator fully open (90°)
(when R = ON)
6)
Sequential phase = 24
FGR
Flue Gas Recirculation
7)
Only with valve proving during startup
CPI
Closed Position Indicator
8)
Parameter: With / without alarm on prevention of startup
AD
Air damper
9)
Parameter: With continuous purging
PS-VP
Pressure Switch-Valve Proving
FCC
Fan Contactor Contact
10) Fan controlled as before
Running time when LOCK OUT = T_FanLockout LF
Low-fire
position
11) Parameter: With / without extraneous light test in STANDBY APS
Air Pressure Switch
12) With valve proving during startup Startup phase 10
PS
Pressure Switch
13) Parameter: Normal / continuous purging
PoP
Post-Purge position
Normal purging: Checking for off in 10, stop to
HP
Home Position
Ph-max
time
→
01
SR
Safety Relay
Continuous purging: Checking for on in 10 and
SLT
Safety Limit Thermostat
12, Stop up to Ph-max time
→
01
TL
Temperature Limiter
14) Parameter: “OilPressureMin”,
“akt_from_ts“
→
no check
IGN
Ignition position
before TSA1 (LO, HO) or TSA2 (LOgp, HOgp)
15) Parameter: “GasPressureMin“,
“deakt_xOGP“
→
PSmin can Repetition counter:
be deactivated for oil programs with gas pilot
16) Parameter: “OilPumpCoupling“,
“direct_coupl“
→
SVoil has
k)
Heavy oil
to be connected to output “Oil pump / magnetic
l)
Restricted startup behavior
clutch“. Output is active when fan is on and for
n) Restricted safety chain
another 15 s after fan is switched off
17) Parameter: “Start / PSvalve“, “PS_Reli_Inv“
→
Output PS valve will be logically inverted
18) Parameter: “Alarm act / deact“, “deactivated“
→
The alarm output can temporarily be deactivated (for current error only)
19) Parameter: Only with LMV52...: Continuous pilot gas / oil: Activated
→
Pilot valve is also activated in operation
20) Parameter: Only with LMV52...: Extraneous light, pilot phase, operating phase gas / oil
→
Separate flame supervision possible
21) Parameter: Only with LMV52...: DW-DK / CPI or StartReleaseGas
→
Parameter-dependent ON / OFF test
CPI Gas: OFF test for gas trains only
CPI Oil: OFF test for oil trains only
CPI Gas+Oil: OFF test for gas and oil trains
Legend to the sequence diagrams