Lx Series Installation and Operation Instructions │Trinity Lx
3
1.0 INTRODUCTION
Installation and Operation Instructions – These instructions apply to the installation
and operation of Trinity Lx150-800 units and covers instructions that are common-to-
both boiler and water heater applications. Troubleshooting instructions for the controller and display are
covered in Appendix A. Appliance-specific plumbing and wiring instructions for Boilers and Water Heaters
are covered in Appendix B and C, respectively.
Terminology – The following terms in the instruction manuals are used to differentiate between which
instructions are common-to-both and which are appliance-specific. The term "APPLIANCE" applies to both
kinds of water heating appliances (boilers and water heaters) and is used when conveying instructions which
are common-to-both. The term "BOILER" or "WATER HEATER" is used when conveying instructions
which are appliance-specific or specific to one or the other, but not both.
Table 1-1 Instruction Manuals
Appliance Model No.
Common-to-Both
(Trinity Lx Series)
Appliance-Specific
(Application Based)
Boiler Lx150-800
Installation
and Operation
Instructions
Appendix A - Controller
and Touchscreen
Display Instructions
Appendix B
Boiler Applications:
Plumbing and Wiring
Instructions
n/a
Water
Heater
Lx200-800
Installation
and Operation
Instructions
Appendix A -Controller
and Touchscreen
Display Instructions
n/a
Appendix C
Water Heating
Applications:
Plumbing and Wiring
Instructions
Notes
1
A conversion kit is required to convert models Lx150-400 so they will safely operate with Propane Gas.
2
No conversion kit is required to operate the Lx500 on Propane (LP), see Section 9.0 for specific instructions.
3
Do not convert the Lx600, Lx700 or Lx800 to Propane (LP). Operate with Natural Gas only.
General Installation Requirements
The installation of your NTI Trinity Lx gas appliance must conform to the requirements of this manual, your
local authority, and the National Fuel Gas Code ANSI Z223.1 and or CAN/CGA B149 Installation Codes.
Where required by the Authority, the installation must conform to the standard for “Controls and Safety Devices
for Automatically Fired Boilers ANSI/ASME CSD-1.
This document pertains to the correct installation and operation of NTI Trinity boiler models Lx150, Lx150E,
Lx200, Lx300, Lx400, Lx500, Lx600, Lx700 and Lx800. The instructions detailed in this document supersede
any and all previous instructions provided by NTI, written or otherwise. Each unit is provided with various
manuals and a Natural to LP Conversion Kit for applicable models. Refer to notes and list of Instruction
Manuals in Table 1-1.
Lx 600-700-800 models are not approved for operation with Propane (LP Gas). Failure to
comply with these instructions will result in property damage, serious injury or death.
Read and understand this entire document prior to proceeding with the installation of the
Trinity Lx. Failure to follow the instructions outlined in this document will result in
property damage, serious injury or death.
User Responsibilities
This appliance must be installed and serviced by a qualified installer or service technician. This appliance must
be serviced and inspected annually when operating in normal residential applications. Demanding applications
or extreme conditions (i.e. commercial) may require more frequent service and inspection. As the User/Owner of
this equipment, you are responsible for ensuring the maintenance is performed at the required intervals.
Failure to have the appliance properly serviced and inspected on a regular basis by a
qualified service technician may result in property damage, serious injury or death.
Failure to keep the Vent and Combustion Air Intake clear of ice, snow, and other
debris may result in property damage, serious injury, or death.
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