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Lx – WH Series
1.0 INTRODUCTION
General Installation Requirements
The installation of your NTI Trinity Lx water heater 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 Water heaters ANSI/ASME CSD-1.
This document pertains to the correct installation and operation of NTI Trinity water heater models Lx200WH,
Lx300WH, Lx400WH, Lx500WH, Lx600WH, Lx700WH and Lx800WH. The instructions detailed in this
document supersede any and all previous instructions provided by NTI, written or otherwise. Each unit is
provided with the following:
1. Installation and Operating Manual,
2. Appendix A – Controller and Touchscreen Display Instructions,
3. Trinity User's Manual, and
4. Natural Gas to LP Conversion Kit*
* The conversion kit is required to convert the water heater so it will safely operate with Propane Gas.
Models Lx600WH-Lx800WH are not approved for operation with Propane (LP Gas).
Operating these models with Propane 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 water heater must be installed and serviced by a qualified installer or service technician. This water heater
must be serviced and inspected annually when operating in normal residential applications.
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 (see Section 15 – Annual Maintenance and Inspection).
Failure to have the water heater 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-inlet clear of ice, snow, and other
debris may result in property damage, serious injury, or death.
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 water heater. The Installer assumes all
responsibility for a safe installation and that it meets the requirements of the water heater instruction manuals, as
well as National and local installation 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.
Installation and Operation Manual
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Trinity Lx-WH
Demanding
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