Trinity Lx
│
Plumbing and Wiring Instructions Water Heater Applications
2
1.0 INTRODUCTION
Water Heater Applications
– These instructions apply to plumbing and wiring of
Trinity Lx200-800 units operating as water heaters and covers instructions that are
specific to water heater applications. When these units are installed and operated as a boiler, and not used for
direct fired potable or process water heating, refer to "Appendix B - Boiler Applications: Plumbing & Wiring
Instructions". See Table 1-1 for a list of Application Manuals.
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 applications (boiler and water heater) 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
The conversion kit is required to convert the Appliance so it will safely operate with Propane Gas (Lx150-400).
2
Do not convert the Lx600-800 to Propane (LP). Operate with Natural Gas only.
General Installation Requirements
The installation of your NTI Trinity gas 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 Boilers ANSI/ASME CSD-1.
This document pertains to the correct installation and operation of NTI Trinity water heaters models 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. See notes and list of Instruction Manuals in Table 1-1.
Natural Gas Only
- The Lx600-800 are not approved for operation with Propane (LP
Gas). Failure to comply with instructions will result in damage, serious injury or death.
Be Informed
- Read and understand this entire document prior to proceeding with the
installation of the Trinity Lx water heater. Failure to follow the instructions outlined in
this document will result in property damage, serious injury or death.
Service
- Failure to have the water heater properly service and inspect on a regular basis
by a qualified service technician may result in property damage, serious injury or death.
Water stored at temperatures between 68-113ºF is ideal for bacteria growth (see Table 1-
1); therefore consuming water from a Water Heater is not recommended. Consuming
water from a Water Heater may cause illness or death.
