#84034 -
Trinity Lx Commercial Controller Replacement Instructions
2/3
S:\NTI2001_N_Drive (1-20-09)\R&D\PARTS - ENGINEERING\Parts Department Stickers and Instructions\Current Parts Instructions (doc)\84034 instructions -
Trinity Lx Commercial Controller.doc
Control Settings Verification and Adjustments:
1)
Control Configuration Verification
– From the “Configuration” menu, select “System Identification and Access”.
Check to ensure the control is equipped with the correct configuration – see illustration below. Replacement
controllers intended for use on Lx Commercial-series boilers will begin with “NTI LxCGen”. At this time the
installer may choose to modify the “Boiler name” to reflect the boiler model the control is installed on, i.e. Lx500.
2)
Modulation Rate Adjustments
– Since the replacement control is generic to all Lx Commercial boiler models, the
minimum and maximum modulation rates must be set to the applicable values. Select “Modulation Configuration”
from the “Configuration” menu and adjust the settings according to the following table:
Parameter
Description
Settings
CH max. modulation
rate
Maximum permissible blower speed during CH demand. Setting
is model dependent.
Lx500 = 6400 rpm
Lx600 = 4350 rpm
Lx700 = 4300 rpm
Lx800 = 5300 rpm
DHW max.
modulation rate
Maximum permissible blower speed during DHW demand.
Setting is model dependent.
Minimum modulation
rate
Minimum permissible blower speed. Setting is model dependent.
Lx500 = 1400 rpm
Lx600 = 1050 rpm
Lx700 = 1250 rpm
Lx800 = 1250 rpm
Failure to set the modulation rates appropriate to your specific boiler model according the
table above may result in fire, explosion, property damage or loss of life.
Configuration Identification
Must begin with “NTI LxCGen”
