LAARS M4-Ext - Installation Manual - Manual (Page 29)

Installation Manual 29
SYSTEM & OUTdOOR SENSOR TRiM
Adjustable from -5F°/-3C° to +5F°/+3C° Default: 0°F
Button: MENU/<Maintenance>/System Trim
Button: MENU/<Maintenance>/Outdoor Trim
• The thermistor type sensors are very accurate, and normally require no calibration.
Sometimes it may be desirable to make small adjustments to the displayed value for either
the Outdoor temperature (OD) or the System temperature (SYS). The Trim setting can
adjust the displayed value by ± 5°F.
• Do not use the Trim setting to make the Outdoor temperature sensor match that reported on
the radio or TV. Outdoor temperature can vary widely over a broadcast range. Only trim
the outdoor sensor based on an accurate thermometer reading taken where the sensor is
located.
SYSTEM SENSOR TRIM
+0 o
F
[ ]
BACK ▲ ▼ SAVE
OUTDOOR SENSOR TRIM
+0 o
F
[ ]
BACK ▲ ▼ SAVE
OUTPUT MOdULATiON TRiM
Adjustable from -1.0 to +1.0 Default: 0.0
Button: MENU/<Maintenance>/Output Trim
• Each of the modulating stages controlled has a separate Output Trim setting.
• Output Trim acts as an adjustment to a stage output percent to match the burner motor.
• After adjusting the Output Trim, test the operation to make sure the results match your
expectation.
-- STAGE A TRIM ---
Output Trim +0.0
<Prev Stage>
<Next Stage>
BACK ▲ ▼ SAVE
ALERT
DO NOT use the Output Trim for a Stage unless it is absolutely necessary. Test
burner operation and modulation output matching after adjusting the Output Trim.
CONFigURATiON
Button: MENU/<Maintenance>/<Configuration>
• This menu option provides a consolidated view of the M4-CNC's Startup and Stage settings.
v1.00, Reset
o
F
Outdoor, Non-HeavyLoad
Switch:150F,5F,0.5Hr
c:mod, 2,Normal
nc:mod, 2,Normal
Shuitdown/Disable
BACK NEXT
PROVE
Bst:30, All On
4-20, 4-20,
BACK EXIT
LAARS Modulating Controls M4 & M4-EXT
HT# 059104-00 B