LMV Series
Technical Instructions
LV5-1000
Menu Path Parameter Default Range Description
51.1
52.2
52.4
LEGEND - Password Access: (U)=User, (S)=Service, (O)=OEM, Shaded = Commonly Used, ** = Must Set, X = Has Function, / = Partial Function
LMV
MaxTmeMod (S) 3min 1-63min
For modulating burners, this is the maximum allowable time for each load step. If the temp.
/ press. does not increase enough to trigger the next load step before this time expires, the
next load step will be taken based on this time. Set to 63 min if to be ramped on temp. /
press. only.
x x x
MaxTmeStage (S) 3min 1-63min
For staged oil burners, this is the maximum allowable time for each stage step. If the temp. /
press. does not increase enough to trigger the next stage before this time expires, the next
stage will be engaged based on this time. Set to 63 min if to be ramped on temp. / press.
only.
x x x
ThresholdOff (S) 80% 0-100%
If ColdStartOn is activated, this is the temp. / press. where the thermal shock protection
disengages. The value is a percentage of the current setpoint.
x x x
AdditionalSens (S) deact
deactivated
Pt100
Pt1000
Ni1000
If an additional temp sensor is used on a steam boiler for cold start (recommended), the type
of sensor must be selected. Sensor to be wired to INPUT terminal X60. Pt1000 and Ni1000
temperature is updated continuously, PT100 temperature only updated when thermal shock
protection is active.
x x x
Temp. ColdStart (U)
Displays the temperature being read by the additional sensor. For Pt100 sensor, this is only
valid when thermal shock protection is active.
x x x
Setp AddSensor (S) 140 F 32-842 F
If a temperature sensor is used on a steam boiler for cold start, a temperature setpoint mus
t
be selected to take the place of the current setpoint. ThresholdOn , ThresholdOff ,
StageSetp_Mod , and StageSetp_Stage percentages will be based on this value. Not
applicable to hot water boilers.
x x x
Release Stages (S) release
release
no release
For staged burners, this enables or disables stages (other than the first stage) to be released
during a cold start.
x x x
Read Only
Params & Display>
LoadController>
ColdStart
SCC Inc. Page 32 Section 3
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