Trinity Lx │Installation and Operation Instructions Lx Series
4
Installer Responsibilities
A qualified installer is a licensed person who has appropriate training and a working knowledge of the applicable
codes, regulations, tools, equipment and methods necessary to install a boiler or water heater. The Installer
assumes all responsibility for a safe installation and that it meets the requirements of the Trinity instruction
manuals, as well as National and local codes. It is also the installer’s responsibility to inform the User/Owner of
their obligation with respect to the description under “User Responsibilities”. Failure to follow this warning
could result in fire, serious injury, or death.
ATTENTION: LIQUEFIED PETROLEUM (LP) PROPANE
The Trinity Lx is factory set to operate with Natural Gas. BEFORE OPERATING WITH PROPANE, the
specified LP Conversion Kit must be installed to convert the appliance so it will operate safely with LP
Propane. The Lx600, Lx700 and Lx800 operate with Natural Gas only; DO NOT convert these models to
Propane. Listed below are the NTI applicable models and their corresponding Natural to LP Propane
Conversion Kit number.
Liquefied Petroleum (LP) propane gas is heavier than air; therefore, it is imperative that your Trinity Lx
appliance is not installed in a pit or similar location that will permit heavier than air gas to collect.
Local Codes may require appliances fueled with LP gas be provided with an approved means of
removing unburned gases from the room. Check your local codes for this requirement.
Natural to LP Propane Conversion Kit_
NTI Series Model Number Kit Number
Trinity Lx 150, 150E, 200, 300 82650-1
Trinity Lx 400 83017-1
Trinity Lx 500 84386-1
Failure to use the appropriate Natural to LP Conversion Kit when operating the Trinity
Lx with Propane will result in extremely dangerous burner operation leading to property
damage, serious injury or death. Refer to section titled ATTENTION: LIQUEFIED PETROLEUM (LP)
PROPANE for applicable models and corresponding conversion kit numbers.
Appliance Vent / Air-Intake Piping
The Trinity Lx is a “Direct Vent” appliance requiring a “Special Venting System”. Vent
and Combustion-Air Intake piping must be piped to the outdoors, using the vent material
and rules outlined in these instructions. Failure to follow instructions will result in serious injury or death.
New Features
Second Central Heat Input - The Trinity Lx can be used as a stand alone unit with a lone heat input or with two
heat inputs. To configure units for two heat inputs refer to "Second Central Heat Input vs Multiple Boiler
Application Settings" in Appendix A and "Stand Alone Boiler Applications" in Appendix B.
Internal Lead-Lag Control - The Trinity Lx controller has the internal capacity to stage or lead-lag up to 8
boilers or water heaters configured in a cascade by "daisy chaining" the controller units together. Refer to
"Second Central Heat Input vs Multiple Boiler Application Settings" in Appendix A for controller setup and
Appendix B or C for application specific plumbing and wiring instructions.
Modbus Address - In Lead Lag installations, each controller’s Modbus Address must be
assigned by the installer. Refer to "System Identification & Access" in Appendix A.
System Sensor - Each LX is provided with an optional system water temperature sensor that allows the system
supply or return temperature to be regulated directly. Refer to "Low Voltage Connections" in Appendix B. Not
used for Water Heater Applications.
Modulation Sensor Alternatives - New LX models provide increased accuracy and control of a unit’s water
temperature by allowing installers to select the desired modulation sensor for a given demand. Refer to
"Modulation Sensor" in Appendix B or C.
Warm Weather Shutdown - When enabled, this feature will "prevent" Central Heat operation when the outdoor
temperature exceeds the WWSD setpoint and "permit" Central Heat operation if the outdoor temperature drops
below the WWSD setpoint by 4
o
F. For set up details refer to the "Warm Weather Shutdown Configuration" in
Appendix A - Controller and Touchscreen Display. Not used for water heater applications.
To Next Page
Loading...
