NTI Lx150-800, Trinity Lx150, Trinity Lx150E, Trinity Lx200, Trinity Lx300 Installation And Operation Instructions Manual

...

Download

Page 1

Trinity Lx

ndicates a hazardous situation which, if not avoided, will

ndicates a hazardous situation which, if not avoided,

ndicates a hazardous situation

hazardous

ndicates a hazardous situation which, if not avoided,

NEW

FEATURES

Warm Weather Shutdown

Lx800

Model Numbers: Lx150-800 Version Date: 2010-07-01

BONUS

Night Time Setback

(Time of Day)

Lx800 Only

Second Central Heat Input

Internal Lead-Lag Control

System Sensor

Modulation Sensor Alternatives

INSTALLATION AND OPERATION INSTRUCTIONS FOR TRINITY LX SERIES BOILERS AND WATER HEATERS

This manual to be read in conjunction with the following documents which provide specific instructions for controller setup, plumbing and wiring:

Appendix A - Controller and Touchscreen Display Instructions Appendix B - Boiler Applications: Plumbing and Wiring Appendix C - Water Heater Applications: Plumbing and Wiring

TABLE OF CONTENTS

INTRODUCTION................................................................................................................3

SPECIFICATIONS ..............................................................................................................6

APPLIANCE LOCATION...................................................................................................7

GENERAL VENTING.......................................................................................................12

0 VENT/AIR-INTAKE TERMINATION CLEARANCES..................................................24

CONDENSATE DRAIN....................................................................................................28

INSTALLING GAS PIPING..............................................................................................29

LIGHTING THE APPLIANCE .........................................................................................31

GAS VALVE AND BURNER SET-UP ............................................................................33

WIRING SCHEMATICS...................................................................................................39

INSTALLATION CHECKLIST ........................................................................................43

ANNUAL MAINTENANCE AND INSPECTION...........................................................45

PARTS LIST ......................................................................................................................47

TROUBLESHOOTING .....................................................................................................57

HAZARD SYMBOLS AND DEFINITIONS

Danger Sign: I result in serious injury or death.

Warning Sign: I could result in serious injury or death.

Caution Sign plus Safety Alert Symbol: I which, if not avoided, could result in minor or moderate injury.

Caution Sign without Safety Alert Symbol: Indicates a situation which, if not avoided, could result in property damage.

Notice Sign: I could result in property damage.

This Appliance must be installed by a licensed and trained Heating Technician or the Warranty is Void. Failure to properly install this

unit may result in property damage, serious injury to occupants, or possibly death.

Page 2

Trinity Lx

Read Before Proceeding

│Installation and Operation Instructions Lx Series

If you do not follow these instructions exactly, a fire or explosion may result causing property damage, serious injury or death.

FOR YOUR SAFETY, READ BEFORE OPERATING_

A) This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the

burner. Do not try to light the burner by hand.

B) BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.

• Do not touch any electric switch.

• Do not use any phone in your building.

• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

• If you cannot reach your gas supplier, call the fire department.

C) Use only your hand to push in or turn the gas control knob. Never use tools. If the knob will not push in or turn by hand, don't try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.

D) Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the been under water.

appliance and to replace any part of the

OPERATING INSTRUCTIONS_

control system and any gas control which has

1. STOP! Read the safety information above very carefully.

2. Set the thermostat to lowest setting. Turn off all electric power to the appliance.

3. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the

burner. Do not try to light the burner by hand.

4. Turn the manual gas valve to the OFF position. Remove front access panel.

5. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas,

STOP! Follow “B” in the safety information above. If you don't smell gas, go to the next step.

6. Turn the manual gas valve ON. Wait an additional five (5) minutes smelling for gas.

7. Replace the front access panel.

8. Set thermostat to highest setting. Turn on all electric power to the appliance.

9. Ignition sequence is automatic. Combustion will occur after a brief fan purge.

10. If ignition does not occur, follow the instructions “To Turn Off Gas To Appliance” and call your service

technician or gas supplier.

TO TURN OFF GAS TO THE APPLIANCE_

1. STOP! Read the safety information above very carefully.

2. Turn off all electric power to the appliance

3. Turn the manual gas valve to the OFF position

Crystalline Silica - Certain components confined in the combustion chamber may

contain this potential carcinogen. Improper installation, adjustment, alteration, service or maintenance can cause property damage, serious injury (exposure to hazardous materials) or death. Refer to Section 12.0 for information on handling instructions and recommended personal protective equipment. Installation and service must be performed by a qualified installer, service agency or the gas supplier (who must read and follow the supplied instructions before installing, servicing, or removing this appliance. This appliance contains materials that have been identified as carcinogenic, or possibly carcinogenic, to humans).

Void Warranty - This Appliance must have water flowing through it whenever the

burner is on or it will damage the unit and void the warranty. Failure to follow these instructions may result in serious injury or death.

Page 3

Lx Series Installation and Operation Instructions │

1.0 INTRODUCTION

Trinity Lx

Installation and Operation Instructions – These instructions apply to the installation

and operation of Trinity Lx150-800 units and covers instructions that are common-toboth 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.

Installation

Boiler Lx150-800

and Operation Instructions

Water Heater

Notes

The conversion kit is required to convert the Appliance so it will safely operate with Propane Gas (Lx150-400).

Do not convert the Lx800 to Propane (LP). Operate with Natural Gas only.

Lx200-800

Installation and Operation Instructions

Common-to-Both

(Trinity Lx Series)

Appendix A Controller and Touchscreen Display Instructions

Appendix B Boiler Applications: Plumbing and Wiring Instructions

Appliance-Specific

(Application Based)

n/a

Appendix C Water Heating Applications: Plumbing and Wiring Instructions

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 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.

The Lx800 is 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.

Page 4

Trinity Lx

│Installation and Operation Instructions Lx Series

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 Lx800 operates with Natural Gas only, DO NOT convert 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

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 4oF. For set up details refer to the "Warm Weather Shutdown Configuration" in Appendix A - Controller and Touchscreen Display. Not used for water heater applications.

Page 5

Lx Series Installation and Operation Instructions │

Trinity Lx

IN THE STATE OF MASSACHUSETTS ONLY

(a) For all horizontally vented gas fueled equipment installed in every dwelling, building or structure used in

whole or in part for residential purposes, including those owned and operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:

1. INSTALLATION OF CARBON MONOXIDE DETECTORS At the time of installation of the side wall

horizontal vented gas fueled equipment, the installing plumber or gas fitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the floor level where the gas equipment is to be installed and on each additional level of the dwelling, building or structure served by the equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for the installation of hard wired carbon monoxide detectors.

a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or

an attic, the hard wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.

b. In the event that the requirements of this subdivision can not be met at the time of completion of

installation, the owner shall have a period of 30 days to comply with the above requirements; provided, however, that during said 30 day period a battery operated carbon monoxide detector with an alarm shall be installed.

2. APPROVED CARBON MONOXIDE DETECTORS Each carbon monoxide detector as required in

accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.

3. SIGNAGE A metal or plastic identification plate shall be permanently mounted to the exterior of the

building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS” (plate included with appliance).

4. INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment

shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.

(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:

1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current

edition of NFPA 54 as adopted by the Board; and

2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure

separate from the dwelling, building or structure used in whole or in part for residential purposes.

When the manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the instructions provided by the manufacturer for installation of the equipment and the venting system shall include:

1. Detailed instructions for installation of the venting system design or the venting system components; and

2. A complete parts list for the venting system design or venting system.

(d) MANUFACTURER REQUIREMENTS – GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED:

When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies “special venting systems”, the following requirements shall be satisfied by the manufacturer.

Page 6

Trinity Lx

2.0 SPECIFICATIONS

│Installation and Operation Instructions Lx Series

Table 2-1 Specifications

DESCRIPTION Lx150 Lx150E Lx200 Lx300 Lx400 Lx800

1,3

25,000-150,000

[7.3-44.0]

1, 3

136,000

[39.8]

118,000

[34.8]

CSA Input Modulation btu/hr [kw]

DOE Heating Capacity btu/hr [kw]

Net I=B=R Rating btu/hr [kw]

DOE AFUE

% 95.1 97.0 95.1 95.1 94.0 6 94.0 6

Recovery Rating @ 100oF Rise, gal/hr

Water Connections - NPT, in.

Gas Connection - NPT, in. 1/2 1/2 1/2 1/2 3/4 1

Vent/Air-Intake Pipe Dia. respectively, in. [mm] 5

Vent/Air-Intake, Max. Length, ft. [m]

Dimensions H x W x D in. [mm]

Approx. Appliance Weight with Water, lbs [kg]

or 4

[ 76 or 102]

105

[32]

29.5x17x18.5

[749x432x470]

100 [45.3] 125 [56.7] 125 [56.7] 180 [31.7] 225 [102] 450 [104]

Electrical Rating 120V / 1 Phase / 60 Hz / 12A

Notes:

Listed Input and Output ratings are at minimum vent lengths at Sea Level. Numbers will be lower with longer venting

and/or altitudes greater then 2000 feet [610 m].

The maximum output when operating on LP-Gas is limited to 145,000 Btu/hr [42.5 kW].

Based on rating plate input capacities, using standard test procedures prescribed by the U.S. Department of Energy.

Ratings have been confirmed by AHRI (GAMA), excluding Lx400 and Lx800.

Units sold in Canada are 3/4” NPT.

Trinity Lx require a special venting system, use only vent materials and methods detailed in these instructions.

Steady-State Efficiency Rating.

Models Lx150-200, when using 3" venting on LP, max. equivalent length = 50 feet.

Only 6” exhaust vent is permissible for the Lx800. Air intake pipe can be 4” or 6”.

Model Lx800 operates with Natural Gas only.

25,000-150,000

[7.3-44.0]

139,000

[40.7]

121,000

[35.4]

25,000-199,000

[7.3-58.3]

182,000

[53.3]

158,000

[46.3]

55,000-275,000

[16.1-80.5]

251,000

[73.5]

213,000

[62.4]

75,000-399,000

[21.9-117]

374,000

[109.6]

325,000

[95.2]

160,000-800,000

[46.9-234]

749,000

[219.5]

650,000

[190.5]

- - 224 310 450 902

1 1 1-1/4 1-1/4 2

or 4

[ 76 or 102]

105

[32]

29.5x17x18.5

[749x432x470]

or 4

[ 76 or 102]

105

[32]

29.5x17x18.5

[749x432x470]

4 or 6

[102 or 152]

100

[30.5]

36x17x21.5

[915x432x546]

4 or 6

[102 or 152]

100

[30.5]

36x17x24

[915x432x610]

4 or 6

[102 or 152]

100

[30.5]

37x17x63.5

[938 x 432 x 613]

Wall mounted units requires two people to lift the appliance into place or property damage and personal injury may result.

High Altitude Operation

The Trinity is designed to operate at its maximum listed capacity in installations less than or equal to 2000 ft [610 m] above Sea Level. Since the density of air decreases as elevation increases, maximum specified capacity should be de-rated for elevations above 2000 ft [610 m] in accordance with Table 2-2.

Table 2-2 De-rate % for High Altitudes

Elevations 2000 ft [610 m] 3000 ft [914 m] 4000 ft [1219 m] 4500 ft [1372 m] 5000 ft [1524 m]

In Canada In USA

Notes:

Canada: Altitudes between 2000-4500 ft [610-1372 m], de-rate by 5%. Consult local authorities for de-rating capacities

de-rate by 5% de-rate by 5% de-rate by 5% de-rate by 5% de-rate % may vary

- de-rate by 4% de-rate by 8% - de-rate by 12%

for altitudes above 4500 ft [1372 m].

USA: De-rate capacity by 4% for every 1000 ft [305 m] over 2000 ft [610 m].

Combustion – At elevations above 2000 feet, the combustion of the appliance must be checked with a calibrated combustion analyzer to ensure safe and reliable operation. It is

the Installers responsibility to check the combustion and to adjust the combustion in accordance to Section 9.0. Failure to follow these instructions may result in property damage, serious injury, or death.

Page 7

Lx Series Installation and Operation Instructions │

3.0 APPLIANCE LOCATION

In all cases, the Trinity Lx must be installed indoors in a dry location where the ambient temperature must be maintained above freezing and below 100°F [38°C]. Gas components must be protected from dripping, spraying water, or rain during operation and servicing. Consider the proximity of system piping, gas and electrical supply, condensate disposal drain, and proximity to vent termination when determining the best appliance location.

Water or flood damaged components must be replaced immediately with new factoryapproved components as failure to do so may result in fire, serious injury, or death.

Floor Mounting

The Trinity Lx can be mounted directly on combustible flooring, with the exception of carpeting. Installing the appliance on carpeting is not permissible. Ensure the appliance is mounted above any anticipated flood level. Models Lx150-400 come equipped with stationary, low profile legs. The Lx800 has factory supplied/field installed leveling legs. Once the unit is removed from the pallet, thread the leveling legs into the allocated threaded inserts in the bottom of the unit.

Appliance Area Ventilation Air Openings

If appliance area clearances are less then the recommended clearances specified in Table 3-1, the appliance area must be ventilated. Each ventilation air opening must meet the minimum requirements of 1 in2 per 1000 Btu/hr, but not less then 100 in2. The lower ventilation opening must be located within 6” of the floor while the upper opening must be located 6” from the top of the space. The Lx800 has an optional Indoor Combustion Air Kit that can be installed in lieu of direct vent air intake piping. Note that the Indoor Combustion Air option is not to be used in conjunction with closet or alcove installations. See "Mechanical Room Installations" below.

If the "Appliance Area" does not meet all of the recommended clearances listed in Table 3-1, it is considered a Closet or Alcove. In US / Canada, closet and alcove installations

require approved CPVC vent pipe, fittings, cements, and primers. See Table 4-3 for a list of approved materials.

Closet Installations

For closet installations, it is necessary to provide two ventilation air openings as shown in Figure 3-1(a), (b) and (c), each providing a minimum area equal to 1 in2 per 1000 Btu/hr, but not less then 100 in2 and within 6” of the top and bottom of the closet door. See Table 3-1for minimum recommended clearances.

Alcove Installations

Alcove installations have the same minimum clearances as closet installations, except the front must be completely open to the room at a distance no greater then 18” [457 mm] from the front of the appliance and the room is at least three (3) times the size of the alcove. Provided these conditions are met, the appliance requires no extra ventilation air openings to the space. See Table 3-1for minimum recommended clearances.

Residential Garage Installations

When installed in a residential garage, mount the appliance a minimum of 18” [457 mm] above the floor. Locate or protect the appliance so it cannot be damaged by a moving vehicle. Check with your local authorities for other possible regulations pertaining to the installation of an appliance in a garage.

Mechanical Room Installations (Commercial)

The Trinity Lx800 is certified for use as a Direct Vent System, where flue gas and combustion air piping are connected directly to the appliance. In addition, it is the only Lx model certified for use with an Indoor Combustion Air System where flue gas piping is connected directly to the appliance, but combustion air is drawn directly from the room. Room supplied combustion air systems are subject to additional codes requirements such as pre-ignition interlocks with motorized dampers or auxiliary proving circuits when operating in rooms with mechanical exhaust fans. See Table 4-1 for combustion air contamination sources to avoid, Table 4-5 for a list of design considerations and installation guidelines, and Figure 4-13 for Kit details.

Wall Mounting Installations (Optional)

Lx150-400 models are shipped with wall mounting brackets to provide installers with the option of wall mounting the appliance. Lx800 is not available as a wall mountable unit. Refer to Figures 3-3(a) and 3-3(b) for instructions and illustrations on wall mounting applicable models. Note that Water Heaters require "Mandatory Wall Mounting Protection". Refer to Section 1.0 in Appendix C, "Water Heater Applications: Plumbing & Wiring Instructions" for further details.

Trinity Lx

Page 8

Trinity Lx

1” [25 mm] clearance for hot water and vent pipes

│Installation and Operation Instructions Lx Series

Figure 3-1(a) Lx150-200 Models

Closet Installation, Minimum Clearances

Piping must be CPVC

Top 12” [305 mm]

6” [152 mm] max. above vent opening

Ventilation Air Openings are not required if the appliance area meets the listed Recommended Clearances in Table 3-1.

Front 6” [152 mm] - Boilers Front 36” [915 mm] - Water Heaters

Closet Installation, Minimum Clearances

Figure 3-1(b) Lx300-400 Models

Left Side 12” [305 mm]

Piping must be CPVC

1” [25 mm] clearance for

Top 12” [305 mm]

hot water and vent pipes

Ventilation Air Opening 1 in2 per 1000 Btu/hr, min. 100 in2

Removable Surface or Closet Door

Ventilation Air Opening 1 in2 per 1000 Btu/hr, min. 100 in2

6” [152 mm] max. below vent opening

Right Side 4” [102 mm]

Ventilation Air Openings are not required if the appliance area meets the listed Recommended Clearances in Table 3-1.

Front 6” [152 mm] - Boilers Front 36” [915 mm] - Water Heaters

Closet/alcove installations in US and Canada require approved CPVC vent and air-inlet pipe, fittings, cements and primers (Table 4-3). Failure to comply may result in damage or serious injury.

6” [152 mm] max. above vent opening

Ventilation Air Opening 1 in2 per 1000 Btu/hr, min. 100 in2

Removable Surface or Closet Door

Ventilation Air Opening 1 in2 per 1000 Btu/hr, min. 100 in2

6” [152 mm] max. below vent opening

Right Side 12” [305 mm]

Left Side 12” [305 mm]

Page 9

Lx Series Installation and Operation Instructions │

Front 36”

[915 mm]

Water Heaters

vent opening

Top

12”

1” [25 mm]

vent opening

Removable Surface

Ventilation Air Opening

Ventilation Air Openings

Access

gas testing

. See Table 3

-1.

Figure 3-1(c) Lx800 Model

Closet Installation, Minimum Clearances

Openings are not required if the appliance area meets the Recommended Clearances in Table 3-1.

Trinity Lx

clearance for hot water and vent pipes

Rear 14” [356 mm]

accessible for wiring and flue

- Ensure rear of unit is

Front 24” [610 mm] - Boilers

[305 mm]

6” [152 mm] max. above

1 in2 per 1000 Btu/hr, min. 100 in2

or Closet Door

1 in2 per 1000 Btu/hr, min. 100 in2

6” [152 mm] max. below

Right Side 4” [102 mm]

Left Side 24” [610 mm]

Table 3-1 Minimum Clearances for Installation and Service

Model No. Clearances

Trinity Lx150-200

Trinity Lx300-400

Trinity Lx800 4

Notes:

6” if surface is removable allowing 24” [610 mm] clearance (i.e. closet installation). See Ventilation Air Opening dimensions in Figure 3-1.

Clearances can be as low as 12” [305 mm] if the right side has a clearance of 24” [610 mm].

Water Heaters require a minimum clearance of 36” [915 mm] in front for burner access (Lx200-800).

For the Lx800, ensure rear of unit is accessible for wiring and flue gas testing.

Minimum 24 [610] Recommended 24 [610] 24 [610] 24 [610] Minimum 24 [610] Recommended 24 [610] 24 [610] 24 [610] Minimum 24 [610] Recommended 24 [610] 24 [610] 30 [762] 24 [610] 18 [458] 1 [25]

Dimensions - inches [mm]

Front Top Left Side Right Side Rear Flue Pipe

1,3

12 [305] 12 [305] 4 [102] 0 1 [25]

1,3

12 [305] 12 [305] 12 [305] 0 1 [25]

1,3

12 [305] 24 [610] 4 [102] 14 [356] 1 [25]

4 [102] 0 1 [25]

12 [305] 0 1 [25]

Page 10



may



















Trinity Lx



Remove the upper wall mount bracket from the

back of the appliance.

│Installation and Operation Instructions Lx Series

Figure 3-2(a) Lx150-200 Models

Wall Mounting Installations

Failure to follow instructions result in fire, serious injury, or death.



Secure the upper wall mount bracket to a solid wall using field supplied lag screws (anchors when mounting on a concrete wall) that are adequate to support the weight of the appliance. Ensure the bracket is mounted in the level position. Refer to Table 2-1 Specifications for appliance weight.



Mount the appliance to the bracket by aligning the slots in the back of the appliance with the hooks protruding from the wall bracket. The top of the slots must rest at the bottom of the groove in the hooks of the wall mount bracket.



Pull the bottom of the unit away from the wall to allow the installation of the lower wall mount bracket (included with appliance). The bracket will snap into place using the slots provided in the bottom of the unit (ensure the snaps lock into place, once installed the bracket should not be easily removed).

Water Heaters require "Mandatory Wall Mounting Protection". Refer to Section 1.0 in Appendix C, "Water Heater Applications: Plumbing & Wiring Instructions".

This unit requires two people to lift it or damage and injury may result.

Ensure that the top of each slot rests on the bottom of the grooves in the wall bracket.

Page 11

Lx Series Installation and Operation Instructions │

may

























Figure 3-2(b) Lx300-400 Models



While leaving the upper bracket intact (A), remove the wall mount bracket attached to the bottom-back of the appliance (B). Save the mounting hardware for Step 4.



Secure the wall mount bracket, removed from the bottom of the boiler in Step 1, to a solid wall using field supplied lag screws (anchors when mounting to a concrete wall) that are adequate to support the weight of the appliance (refer to Table 2-1 Specifications). Ensure the wall mount bracket is mounted level and flush to the wall with mounting holes on the bottom, flange pointed upward and angled away from the wall.



Mount the appliance to the wall by aligning the

upper bracket (A) with the wall mount bracket (B). Slide the upper bracket down over the wall mount bracket until it hooks.



Once the appliance is resting securely on the

upper bracket, secure the bottom bracket to the underside of the appliance using the mounting hardware removed in Step 1; then, anchor the bottom bracket to the wall as shown.

Wall Mounting Installations

Failure to follow instructions result in fire, serious injury, or death.

This unit requires two people to lift or damage and injury may result.

Trinity Lx

Ensure that the upper bracket on the back of the appliance (A) slides down over the wall mount bracket (B) and rests securely on it.

Water Heaters require "Mandatory Wall Mounting Protection". Refer to Section 1.0 in Appendix C, "Water Heater Applications: Plumbing & Wiring Instructions".

Page 12

Trinity Lx

4.0 GENERAL VENTING

│Installation and Operation Instructions Lx Series

The Trinity Lx is a “Direct Vent” appliance requiring a “Special Venting System” designed for pressurized venting. Both the Vent and Air-Intake piping must be piped to the outdoors, using the vent material and rules outlined in this section. Under no conditions may this unit vent gases into a masonry chimney, unless it is vacant, and utilizes the approved venting material and rules described in this section. Installations must comply with the National Fuel Gas Code, ANSI Z223.1 (U.S.) or CSA B149.1 (Canada) and local requirements.

Vent and Air-Intake to be piped separately. The Trinity Lx cannot share a common vent or air-intake with multiple appliances. Failure to comply will result in serious injury or death.

Combustion Air-Intake Contamination

Be careful not to locate the Air-Intake termination in an area where contaminants can be drawn in and used for combustion. Combustion air containing dust, debris or air-borne contaminants will drastically increase the required maintenance and may cause a corrosive reaction in the Heat Exchanger which could result in premature failure, fire, serious injury, or death. See Table 4-1 for a list of areas to avoid when terminating air-intake piping:

Table 4-1 Corrosive Products and Contaminant Sources

Products to Avoid Contaminated Sources to Avoid

Antistatic fabric softeners, bleaches, detergents, cleaners Laundry facilities Perchloroethylene (PCE), hydrocarbon based cleaners Dry cleaning facilities Chemical fertilizer, herbicides/pesticides, dust, methane gas Farms or areas with livestock and manure Paint or varnish removers, cements or glues, sawdust Wood working or furniture refinishing shops Water chlorination chemicals (chloride, fluoride) Swimming pools, hot tubs Solvents, cutting oils, fiberglass, cleaning solvents Auto body or metal working shops Refrigerant charge with CFC or HCFC Refrigerant repair shops Permanent wave solutions Beauty shops Fixer, hydrochloric acid (muriatic acid), bromide, iodine Photo labs, chemical / plastics processing plants Cement powder, crack fill dust, cellulose, fiber based insulation Concrete plant or construction site

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. Failure to follow instructions may result in serious injury or death.

Flammable Solvents and Plastic Piping

Due to the extremely flammable characteristics of most glues, cements, solvents and primers used in the process of joining plastic vent and air-inlet pipe, explosive solvent vapors must be evacuated from the vent and air-intake prior to start-up. Avoid using excess cement or primer that may lead to pooling inside the pipe assembly. Freshly assembled piping assembly should be allowed to cure for a minimum of 8 hours before applying power to the gas fired appliance. Refer to Mandatory Pre-commissioning Procedure for Plastic Venting in this section.

Flammable Cements and Primers – It is the installers’ responsibility to familiarize themselves with the hazards associated with explosive solvents and to take all precautions

to reduce these risks. Failure to follow these instructions can cause explosions, property damage, injury or death.

Near Appliance Vent/Air-Intake Piping

Each Trinity Lx is equipped with a short piece of approved CPVC vent pipe. Insert one end into the appliance flue outlet adapter and cement the other to field venting (see Table 4-3 for approved venting material). The CPVC vent pipe should extend fully into the appliance flue outlet adapter (see Table 4-2). DO NOT insert PVC pipe directly into the flue outlet connection as it can deform from the clamping force of the gear clamp. Ensure that the venting system does not apply a load or strain on the appliance flue outlet adapter. The manufacturer recommends using two elbows to create a “swing joint” to reduce potential strain on vent piping and cemented joints. See Figures 4-1 through 4-3 for illustrations.

Gasket Seating - Improper seating can cause leakage and eventual failure of the sealing gasket. Failure to follow these instructions may result in serious injury or death.

Page 13

Lx Series Installation and Operation Instructions │

Flue Outlet

Exhaust Vent

Swing Joint

Air Inlet

Coupling

Air-Inlet

Swing Joint

Exhaust Vent

Flue Outlet

Coupling

Air Inlet

Coupling

Swing Joint

Exhaust Vent

Flue Outlet

Adapter (factory

Transition Piece

Mandatory Vent

Pipe

See Table 4

-2.

Air-Inlet

4” Pipe *

Swing Joint

Coupling

Flue Outlet

Coupling

Exhaust Vent

4”/6” PVC (check local

Trans

ition Piece

Mandatory Vent

Pipe

See Table 4

-2.

3” Pipe *

Figure 4-1(a) Lx150-200 Model Figure 4-1(b) Lx150-200 Model

Near Appliance Venting (CPVC) Near Appliance Venting (PVC)

to attain slope in horizontal runs

3” CPVC

3” Pipe *

to attain slope in horizontal runs

(check local codes and Table 4-3)

Trinity Lx

- 3” PVC,

3” Removable (field supplied)

Figure 4-2(a) Lx300-400 Models Figure 4-2(b) Lx300-400 Models

Near Appliance Venting (CPVC) Near Appliance Venting (PVC)

4”/6” PVC

Coupling 3” PVC

3” CPVC, minimum 5” long (factory supplied)

Stainless Steel supplied)

Transition Piece

Stainless Steel Adapter (factory supplied)

3” Removable (field supplied)

to attain slope in horizontal runs

Stainless Steel Adapter (factory supplied)

4” Pipe *

Transition Piece

codes and Table 4-3)

4” CPVC, minimum 4” long (factory supplied)

to attain slope in horizontal runs

4”/6”x4” PVC

Stainless Steel Adapter (factory supplied)

90o elbow typical, or tee and drain cap option for easy cleanouts



Air-Inlet - check with applicable local codes for acceptable pipe material.

In Canada, the first 3 ft (915 mm) of vent piping must be readily accessible for inspection.

4” Removable (factory supplied)

90o elbow typical, or tee and drain cap option for easy cleanouts

Page 14

Air-

Inlet

Exhaust Vent

6” CPVC

Swing Joint

to attain slope in

Flue Outlet

6”

Inlet Adapter

easy cleanouts

Inlet Adapter

)

Flue Outlet

6”

Exhaust Vent

6” PVC (check

Coupling

”

PVC, length 4”

Air-Inlet

Transition

Swing Joint

Mandatory Vent

Pipe

Transition

iece

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 4-3(a) Lx800

Near Appliance Venting (CPVC)

Figure 4-3(b) Lx800

Near Appliance Venting (PVC)

6” CPVC (factory supplied). See Table 4-2.

horizontal runs

4” Pipe *

Air-

4” stainless steel (factory supplied

stainless steel elbow (factory supplied)

90o elbow typical, or tee and drain cap option for



Air-Inlet - check with applicable local codes for acceptable pipe material.

)

local codes and Table 4-3)

6” CPVC

stainless steel elbow (factory supplied)

90o elbow typical, or tee and drain cap option for easy cleanouts

to attain slope in horizontal runs

4/6” Pipe *

Air-

4” stainless steel (factory supplied

Exhaust venting must be supported to reduce strain on piping joints. Failure to follow these instructions may result in result in damage, serious injury or death.

In Canada, the first 3 ft (915 mm) of vent piping must be readily accessible for inspection.

Table 4-2 Mandatory Vent Pipe Transition Piece

Model No. CPVC Vent Pipe Size CPVC Transition Vent Pipe Length Full Insertion Depth

Trinity Lx150-200 3” Minimum 5” [127 mm] 2-7/8” [73 mm] Trinity Lx300-400 4” Minimum 4” [100 mm] 1-7/8” [48 mm] Trinity Lx800 6” Minimum 6” [152 mm] 2-1/2” [63 mm]

Vent/Air-Intake Pipe Material

Table 4-3 Acceptable Vent and Air-Intake Pipe Material

Items 1

Vent Pipe and Fittings

Materials

PVC - DWV ANSI/ASTM D2265 PVC Schedule 40 ANSI/ASTM D1785 CPVC Schedule 40 ANSI/ASTM F441

Pipe Cement

PVC ANSI/ASTM D2564 CPVC ANSI/ASTM F493

Primers

Notes:

Refer to Table 4-4 for Allowable Vent and Air-Intake Pipe Sizes and Lengths.

Closet/alcove installations in US and Canada require approved CPVC vent pipe, fittings, cements, and primers.

The Air-Intake does not require high temperature pipe material. Check applicable local codes for acceptable materials.

ULC S636 PVC is approved for flue gas temperatures up to 149oF (65oC) and must only be used for low temperature

PVC / CPVC ANSI/ASTM F656

applications. High temperature applications requiring appliance supply water temperatures greater than 140oF (60oC) must use ULC S636 approved CPVC.

Air-Inlet - check with applicable local codes for acceptable pipe material.

2, 3

Installation Standards

United States

Canada 4

All venting material in

Canada must be

ULC S636 approved.

See Note 4 below for

appropriate temperature

applications.

All Vent and Air-Intake materials installed on gas fired appliances in CAN/US must meet the Standards listed in Table 4-3. Failure to comply could result in fire, serious injury or death.

Page 15

1 2 3 4 5 6 7 8 9

Lx Series Installation and Operation Instructions │

Mandatory Pre-commissioning Procedure for Plastic Venting

Trinity Lx

Do not apply power to the appliance prior to Step 4 in the Mandatory Pre-commissioning Procedure for Plastic Venting.

1) Working with the power turned off to the appliance, completely install the vent and air intake system,

securely cementing joints together. If possible, allow primers/cements to cure for 8 hours before firing the burner. If curing time is less than 8 hours, proceed with Steps 2 through 6.

2) Maintain the appliance gas supply shut-off valve in the off position.

3) Disconnect electrical leads to the Hot Surface or Spark Igniter. Ensure the cables are placed in a fashion

where they will not arc to ground or other conductor.

Spark Igniter Cable - Maintain a minimum 2” separation between spark igniter circuit and

conductors. Failure to follow instructions may result in component failure, injury or death.

4) Turn power on to the appliance and apply a heat demand.

5) Allow for 3 complete trials for ignition, consisting of pre and post purge of the combustion blower, until an

ignition lockout occurs. Repeat the process two more times (i.e. 9 complete ignition sequences in total).

6) Turn power off and reconnect the electrical leads to the Igniter. Vent/Air-Intake Pipe Length Determination

Use Table 4-4 to determine the maximum pipe length that can be used. The table calculates sweep, 90º elbows, and 45º elbows at 5 equivalent feet [1.52 m] each. Allowable equivalent pipe lengths for vent and air-intake pipes are shown separately for Natural Gas and LP. Length calculations need not include the three 90° elbows of the exterior vent piping (two outlet, one inlet).

Example: An Lx200 can be installed with 105 equivalent feet [32 m] of air-intake piping and 105 equivalent feet [32 m] of vent piping when operating with Natural Gas. When operating with Propane Gas (LP), the maximum vent length in equivalent feet is limited to 50’ (3” pipe). Maximum equivalent feet may vary depending on model number and vent pipe size (.i.e. 30’ with 4” pipe and 65’ with 6” pipe). Note, the Lx800 operates on Natural Gas only; therefore, no pipe lengths are specified for Propane. See Table 4-4 for more details.

The length of one vent pipe (intake or exhaust) may not exceed the length of the other vent pipe by more than 20 equivalent feet (6.1 m).

Table 4-4 Allowable Vent and Air-Intake Pipe Size and Lengths

Model No.

Pipe

Size

3” LP Trinity Lx150 Trinity Lx150E

3” NG Trinity Lx200

4” Trinity Lx300

Trinity Lx400

4”/6”

Trinity Lx800 4”/6”

Notes

Only 6” exhaust vent is permissible for the Lx800. Air intake pipe can be 4” or 6” (6” is recommended).

Model Lx800 operates with Natural Gas only.

& LP

NG 2

Gas

Length

ft. [m]

[15.2]

105

[32]

105

[32]

100

[30.5]

100

[30.5]

Number of Elbows (90’s or 45’s) and Equivalent Feet [Meters]

[13.7]

100

[30.5]

100

[30.5]

[28.9]

[12.2]

[28.9]

[27.4]

[10.7]

[27.4]

[25.9]

[9.1]

[25.9]

[24.4]

[7.6]

[24.4]

[22.9]

[6.1]

[22.9]

[21.3]

[4.6]

[21.3]

[19.8]

[3.0] 5 [1.5]

[19.8]

[18.3]

[16.8]

Venting Options

Venting systems include direct vent (two-pipe), concentric vent, and indoor combustion air for side-wall or roof terminations. Options are model dependent. See Figures 4-4 to 4-8 for Options and Figures 4-12 to 4-14 for Kits.

PVC In Canada - Safety authorities in some jurisdictions are not allowing PVC venting materials with appliances of any kind, even if System 636 certified. Check with the local

safety inspector to verify compliance prior to installing a PVC Concentric Vent Kit with a Trinity Lx appliance.

Venting Options - Due to potential moisture loading (build-up) along the exterior wall, sidewall venting may not be the preferred venting option. See Figs 4-4(b), 4-5(b), 4-8 (b).

Page 16

Trinity Lx

│Installation and Operation Instructions Lx Series

Optional Termination Kits NTI does not stock System 636 PVC Concentric Vent Termination Kits as they are readily available from IPEX via Canadian wholesalers. Canadian customers wanting more information on System 636 Concentric Vent Kits or wholesaler locations can contact IPEX directly at 1-866-473-9462 (toll free in Canada) or www.ipexinc.com.

Concentric Vent Termination Kit - United States (Lx150-200)

• Use NTI part number 82666 (York part number 1CT0303). Kits no longer approved for use in Canada.

• Optional for Trinity models Lx150-200 only (not for use with Lx300-800 models).

• Instructions included with vent terminal contain more detailed assembly and installation instructions.

• Clearance requirements in this manual supersede those of the instructions included with the vent terminal.

• Terminal MUST be cemented together during installation.

Concentric Vent Termination Kit – Canada (Lx150-200)

• Use IPEX part number 196006 (Concentric Kit) and 196051 (Vent Screen), certified to ULC S636. Use of

this material is subject to approval by local authorities. Kit 82666/1CT0303 no longer approved for Canada.

• Optional for Trinity models Lx150-200 only (not for use with Lx300-800 models).

• Instructions included with termination kits contain more detailed assembly and installation instructions.

• Clearance requirements in this manual supersede those of the instructions included with the vent terminal.

Side Wall Termination Kit (Lx300-800)

• Use NTI part number 83236 (4” kit connections. 6” venting must reduce down to 4” at interior trim piece).

• Side-wall terminations only. See Figures 4-6(b) and 4-7(b).

• Instructions included with vent terminal contain more detailed assembly and installation instructions.

Indoor Combustion Air Kit (Lx800 only)

• Use NTI part number 84093.

• Direct vent exhaust termination can be side-wall or roof mounted. See Figure 4-8(a) and (b).

• Air-intake termination via the Indoor Combustion Air Kit certified with this product.

• Kit includes assembly instructions, interlock connection instructions to unit, mounting hardware, and air filter.

• Additional code requirements for room supplied combustion air are summarized in Table 4-5.

If an Indoor Combustion Air Kit is installed in lieu of a direct vent air-intake, additional

code requirements for room supplied combustion air must be followed to provide the unit with adequate air for complete combustion at high fire and to prove air flow during equipment operation. Failure to follow instructions in this manual will result in serious injury or death. See Table 4-5 (Lx800 only).

Venting Options

Figure 4-4(a) Lx150-200

Concentric Side Wall Termination (Optional Kit)

Concentric Roof Termination (Optional Kit)

Figure 4-4(b) Lx150-200

Page 17

Lx Series Installation and Operation Instructions │

Pipe

Venting Option

shown for

Trinity Lx

Figure 4-5(a) Lx150-200

Two-Pipe Side Wall Termination

Figure 4-5(b) All Models

Two-Pipe Roof Termination

Typical for all models. Lx200 unit illustration purposes.

Figure 4-6(a) Lx300-400 Figure 4-6(b) Lx300-400

Two-Pipe Side Wall Termination Two-Pipe Side Wall Termination (Optional Kit)

Page 18

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 4-7(a) Lx800

Two-Pipe Side Wall Termination

Two-Pipe Side Wall Termination (Optional Kit)

Figure 4-7(b) Lx800

Indoor Combustion Air Options

Figure 4-8(a) Lx800 Only

Side Wall Vent / Indoor Combustion Air (Optional Kit)

Figure 4-8(b) Lx800 Only

Roof Vent / Indoor Combustion Air (Optional Kit)

Page 19

Lx Series Installation and Operation Instructions │

Trinity Lx

Indoor Combustion Air Requirements (Lx800 Only)

Drawing combustion air from the room can result in competition for combustion air with other fuel burning appliances, ventilation air systems or exhaust sources. See Table 4.5 for a list of design considerations and installation guidelines. Check with applicable codes and authorities regarding specific application requirements.

MERV Filter – The Indoor Combustion Air Kit comes with a 2” MERV 7 filter which is

mandatory for appliance operation. Do not operate the unit using indoor combustion air without the filter installed. Failure to comply may result in property damage, serious injury or death.

Mandatory Interlocks - Required between motorized dampers and burner ignition controls to ensure adequate supply or make-up air is provided. The Lx800 comes equipped with auxiliary proving capability. Simply remove the jumper on the Low Voltage barrier labeled Aux. Proof (T2-7,8) and replace with field supplied end switch incorporated with motorized damper and/or louver controls.

Wall Openings - Outdoor opening for louvers/grilles must be sized so that the minimum unobstructed area will provide adequate air flow at high fire, known as the FREE AREA and is expressed in square inches/Btuh. Free Area (FA) is determined by taking the area of the wall opening less any obstructions. Common louver free areas range from 35% to 60% of the wall opening, meaning 65% to 40% is obstructed by the frame and blades.

Table 4-5 Indoor Combustion Air Guidelines

Parameters Method / Type Requirements

Supply Air 1

Combustion Air Methods

Air Competition

Interlocks

Louvers, Grilles, & Dampers

Outdoor Opening

Free Area, Required

Nominal, Opening Size

Free Area, Duct Area

Notes:

Placing ventilation and combustion air openings too close to each other may result in short circuiting of air flow.

Combustion air for each appliance must be calculated separately. The outdoor opening size can be a single opening

large enough for the collective total of each appliance in the room or a separate opening for each appliance.

Louvers/dampers must be fixed open or interlocked with fuel burning equipment to prove air flow during operation.

Screens/grilles over air openings create air flow resistance decreasing the effective area of unrestricted flow. "Free Area"

(FA) is the minimum unobstructed area needed for adequate air flow at high fire expressed in square inches/Btuh.

Each appliance must be interlocked with the mechanical air supply system in the boiler room to prevent burner

operation when the fan is not operating.

Ventilation applicable codes Combustion Air five methods (below) Indoor Air by volume infiltration or air changes/hour see "Air Competition" Outdoor Air by opening area 1 or 2 permanent openings see "Outdoor Opening" Comb Indoor/Outdoor see indoor/outdoor air calculate each method separately see "Indoor Air" / "Outdoor Air" Engineered Air adequate air approved engineered design

Mechanical Air

outdoor air supplied

0.35cfm/1000Btuh

Exhaust Fans provide make-up air supply = exhaust + combustion air Other Appliances

adequate air for all supply = collective combustion air

Building Ventilation additional air supply = ventilation + combustion air Damper interlock

Fan interlock

on driven member

with appliance burner

Fixed fully open position Automatically adjustable interlocks required Manually adjustable not permitted Opening Free Area

unrestricted flow Opening Nominal gross dimensions Calculate Required FA

for Combustion Air

1 sq. in./4000 Btuh Known FA, specified Opening FA Nominal larger than Opening FA. Unknown FA, assumed wood 25%; metal 75% Vertical ducts 1/4000 vertical duct area = FA

Horizontal ducts 1/2000 horizontal duct area = FA / 2

NFPA 54 Part 9.3 / CSA B149 Part 8.0

locate combustion air openings lower

than ventilation air openings

interlocks mandatory

combustion air must be proven prior

to igniting appliance burner

opening must be sized to provide the

Required Free Area

Opening FA must be > Required FA

for Combustion Air.

Required FA for Lx800 = (1/4000) x

800,000 Btuh = 200 sq. in.

Nominal=Required FA/Assumed FA

N = 200 sq. in. / 75% = 276 sq. in.

Comments

see "Combustion Air Methods"; see "Air Competition"

subject to approval by authority having jurisdiction

fuel burning appliances must not share combustion air with other appliances or compete for air with exhaust sources

interlocks required by ASME CSD-1, Part CG-260

see "Outdoor Opening"

see "Free Area, Required"

see "Free Area, Opening Size" and/or "Free Area, Duct Area"

select louver/grille/damper with Opening FA = Required FA

combustion air ducts, minimum dimension = 3”

Page 20

appliance

To appliance

connection

exhaust

Air-Inlet

Exhaust Vent

Exhaust

Vent

Air-Inlet

Chimney

Vent

Air Inlet

Vanes (typical)

Trinity Lx

│Installation and Operation Instructions Lx Series

Labeling and Identification – Roof Top Terminations

Figure 4-9(a) All Models Figure 4-9(b) Lx150-200

Two-pipe terminations typically penetrate the roof surface. An alternative is to use an existing chimney as a chase way. See Figure 4-17 for more details.

Two-Pipe Roof Top Termination Concentric Vent Roof Top Termination

To prevent water leakage, install adequate roof weather seal flashing (not included) around roof penetration as shown.

Roof weather seal flashing (field supplied)

24” [610 mm] from terminal end cap vanes

Cap

Existing Chimney (used as a chase way)

Flashing

Support (field supplied)

From appliance

Labeling and Identification – Concentric Vent Side Wall Terminations

Figure 4-10(a) Lx150-200 Figure 4-10(b) Lx150-200

Insert vent screen between the end of the appliance exhaust vent and the end cap as shown. The End Cap

Concentric Vent Side Wall Termination Concentric Vent Detail

Insert vent screen between the end of the appliance exhaust vent and the end cap as shown. The End Cap must be secured to the vent pipe via cement or stainless steel screws.

Gas Vent Directly Below

Keep Free of Obstructions

From exhaust

Exterior Wall

To appliance air-inlet

Combustion Air-Inlet (perimeter)

Warning Plate

Exhaust Vent Outlet (center)

Concentric “Y” Fitting

air-inlet connection

Exhaust

End Cap

Combustion

End Cap

Page 21

Lx Series Installation and Operation Instructions │

Vent

Screen

Vent Screen

Screen

Air-Inlet

Side-Wall

Termin

ation

Kit

Air

down to 4” pipe at

nt terminal

wall (typical

From

Appliance

Venting

fully assembled

and installe

Concentric

Vent

screen included

with kit as shown.

Housing

MERV 7

Filter, 2”

Brackets

Labeling and Identification – Two-Pipe Side Wall Terminations

Figure 4-11(a) All Models

Two-Pipe Side Wall Termination

Two-Pipe Side Wall Termination (Optional Kit)

Figure 4-11(b) Lx300-800 Only

Trinity Lx

Gas Vent Directly Below

Keep Free of Obstructions

Exhaust

Vent

Venting

Insert vent screen into socket joint of termination elbow. Secure by cementing a short piece of venting into the socket.

Warning Plate

Combustion

Vent

Venting

Terminal

Exhaust Vent with Vent Screen

Labeling and Identification – Optional Termination Kits

Figure 4-12 Lx300-800 Figure 4-13 Lx800 Only

Side Wall Termination Kit Indoor Combustion Air Kit

Framing within

)

mounted to exterior wall

Gas Vent Directly Below

Keep Free of Obstructions

Warning Plate

Combustion Air-Inlet (between back of vent terminal and exterior wall)

Vent Screen

4” Thru-Wall Extension

4” Support Couplings

Exhaust

To Appliance

The Vent /Air-Inlet pipes are field supplied. Major components provided in Side-wall Termination Kit include vent screen, interior trim, and vent terminal.

Combustion

-Inlet

Interior Trim Must reduce

this point if using 6” venting

Figure 4-14 Lx150-200

Concentric Vent Kit

Exhaust Vent

Vent Screen

Vent

Housing

Air Inlet Pipe

End Cap

Page 22

Trinity Lx

│Installation and Operation Instructions Lx Series

Venting Rules and Guidelines

1. Prevailing Winds: Ensure the vent is located where it will not be exposed to normal prevailing winds.

2. Combustion Air-Intake Contamination: Air for combustion must be drawn from outdoors from an area

free of dust and contaminants. Combustion air containing chemicals such as chloride, fluoride, bromine or iodine or dust and debris will cause corrosion damage of the heat exchanger voiding your NTI warranty. Refer to Table 4-1 for a list of corrosive products and contaminants sources to avoid.

3. Vertical Separation: The exhaust must be a minimum of 18” [457 mm] above the air inlet, and the air inlet

must always be a minimum of 12” [305 mm] plus snow allowance above any surface that will support snow. (Two feet plus snow allowance is highly recommended). Consult your weather office, for the maximum typical snowfall for your region.

Example: New Brunswick Canada - typical maximum snowfall is 19”, thus the inlet must be (12”+19”) =

31” above grade and exhaust must be (31”+18”) = 49” above grade.

4. Horizontal Separation: The horizontal distance between the inlet and exhaust must be a minimum of 4”

[102 mm] center to center. When the horizontal distance between the inlet and exhaust is greater than 12” [305 mm], the difference in horizontal distance must be determined and the vertical separation increased by the same amount.

Example: The horizontal distance (HD) = 24” [610 mm], and the vertical separation (VSmin) = 18” [457

mm], the new vertical separation (VSnew) can be calculated using the following equation: VSnew = (HD - 12”) + VS, where VSnew = (24” - 12”) + 18” = 30”. (If the horizontal distance is greater than 6’ [1.83 m], no additional vertical spacing is required. Vertical

separation is never required to be greater than 36” [915 mm].

5. Wall Flashing: Under normal operating conditions this appliance will produce a plume of white gases, and

should be taken into consideration when selecting an adequate location. A 36” [915 mm] diameter stainless,

plastic, or vinyl shield can be used to flash the exterior of the residence.

6. Flue Gas Hazard: Position the vent termination where vapors cannot make accidental contact with people

and pets or damage nearby shrubs and plants.

7. Elbow Extensions: Elbows on outside of wall must be no more than ½” [13 mm] away from the wall.

8. Vent Sloping: All indoor exhaust piping must be on a slope back to the appliance a minimum of ¼” per

linear foot of vent [6.25 mm per linear 305 mm]. For applications where excessive condensation is possible

½” per linear foot [13 mm per linear 305 mm] is recommended.

9. Vent Supports: Where required Vent and Air-intake piping shall be secured to the wall for more rigidity.

All interior vent pipe shall be supported a minimum of every 36” [915 mm]. Where 6” diameter pipe is

used, support a minimum of every 48” [1.22 m].

10. Roof Exhaust: In all roof applications the discharge must point away from the pitch of the roof.

11. Roof Flashing: Install adequate flashing where the pipe enters the roof, to prevent water leakage.

12. Rain Cap: Install and seal a rain cap over existing chimney openings, in vacant chimney applications.

13. Venting Below Grade: For installations that exit the wall below grade refer to Figure 4-15.

14. Vent Screens: Install factory supplied vent screens on the outside of the last elbow for both the inlet and

exhaust vent terminal elbows. Install the screen into the female opening of the elbow. Then cut a small piece

of pipe to sandwich the screen into the elbow. NOTE be sure that the small piece of pipe cut, does not

extend past the end of the elbow. Two screens are provided in the package. See Figures 4-11(a). Vent

screens are included in Optional Termination Kits. See Figure 4-12 and Figure 4-14 respectively for Side-

Wall and Concentric Vent Kit details.

15. Pipe Sizing: It is extremely important that the intake and exhaust vent piping be adapted to the appropriate

size immediately upon exiting the appliance cabinet. Refer to Table 4-2.

16. Condensate Hazard: Do not locate vent over public walkways, driveways or parking lots. Condensate

could drip and freeze resulting in a slip hazard or damage to vehicles and machinery.

17. Warning Plate: Install the warning plate “Gas Vent Directly Below”, directly above (within 4 ft [1.22 m]

vertically) the location of the air inlet pipe, so it is visible from at least 8 ft [2.4 m] away. See Figure 4-16.

18. Wall Thickness: Direct vent terminations are designed to work with any standard wall thickness.

Installation guidelines for min/max wall thickness are as follows: Min.= 1” [25mm], Max.= 60” [1.52 m].

19. Venting Options: Due to potential moisture loading (build-up) along the exterior wall, sidewall venting

may not be the preferred venting option. Refer to Figures 4-4(b), 4-5(b), 4-8(b) for roof top venting options.

20. Indoor Combustion Air: Auxiliary proving and pre-ignition interlocks may be required when using this air

intake option in lieu of direct venting combustion air. See Table 4-5.

Page 23

Lx Series Installation and Operation Instructions │

Chimney

Min.

Figure 4-15 All Models

Venting Below Grade

Trinity Lx

For installations that exit the wall below grade:

1. Excavate site to a point below where the pipes

are to exit as shown.

2. Ensure that the wall is fully sealed where the

pipes penetrate the wall.

3. The Vent/Air-intake piping MUST be secured

to the side of the building above grade, as shown, to provide rigidity.

4. NTI Provides a mounting bracket PN. 82075 for

securing the exhaust pipes.

5. Ensure that the Vent/Air-Intake clearances are

maintained, see Section 5.0 for details.

Figure 4-16 All Models

Outdoor Horizontal Venting

Vent piping outside the Building is permitted under the following conditions:

1. The maximum length outside the building is 20

feet [6.1 m]. Note that outdoor length must be included in the overall vent length calculation.

2. 3” pipe can only be used for Lx150-200 models;

4” pipe must be used for the Lx300-400 models.

3. All normal termination clearances are maintained.

4. All exterior exhaust vent pipes are insulated with

½” [89 mm]

- ID for Lx150-200, or 4½” [114 mm] - ID for Lx300-400, and 6½” [165 mm] ID for Lx800, ½” [13 mm] thick, Closed Cell

Foamed Polyolefin Tubing (i.e., “Tundra Seal Plus” or equivalent).

5. The pipe is supported every 24” [610 mm].

6. The exhaust and inlet are sloped back to the

appliance ½” elevation for every linear foot [13 mm for every linear 305 mm].

Exhaust Vent

Air-Inlet

Gas Vent Directly Below

Keep Free of Obstructions

Apply Warning Plate here

Air-Inlet

12” [305 mm] plus snow allowance above

Exhaust Vent

Mounting Bracket

Supports every 24” [610 mm]

Maximum of 20 ft [6.1 m] is permitted for piping outside a building.

It is permissible to use an existing chimney as a chase way to run the Vent/Air-Intake piping as long as:

1. The chimney is not being used by any other

appliance.

2. Flue gases don’t enter the vacant chimney.

3. Only Trinity certified venting materials are used,

see Section 4.0.

4. Vent lengths are within the maximums specified.

5. The top of the chimney is capped and the

Vent/Air-Inlet pipes are flashed to prevent leakage into the vacant chimney.

Figure 4-17 All Models

Existing Chimney Chase Way

Cap

Existing Chimney (used as a chase way)

Exhaust Vent

Air-Inlet

Exhaust Vent 18” [457 mm] above air-inlet

Air-Inlet Min. 12” [305 mm] above roof and snow level

Page 24

Trinity Lx

5.0 VENT/AIR-INTAKE TERMINATION CLEARANCES

│Installation and Operation Instructions Lx Series

The quick reference table below is to be read in conjunction with the numbered notes as

indicated, Figures 5-1 through 5-6, and the Venting Rules and Guidelines in Section 4.0. The instructions detailed in this section are a combination of Trinity Lx specific and National Gas Code restrictions. Compliance alone doesn’t insure a satisfactory installation as good common sense must also be applied. Failure to follow these instructions may result in fire, property damage, serious injury or death.

Table 5-1 Termination Clearances Quick Reference Table

Clearances to Air-Inlet Termination

A Above grade/roofline and snow level 8 12 in. 305 mm 12 in. 305 mm B Above roof line - Concentric Vent

6, 11, 13

24 in. 610 mm 24 in. 610 mm

C To exhaust vent from any other appliance 36 in. 915 mm 12 in. 305 mm

Clearances to Exhaust Vent Termination Min. Distance Min. Distance

D Minimum vertical separation above air inlet 9 18 in. 457 mm 18 in. 457 mm

E Minimum horizontal separation from air inlet 3 4 in. 102 mm 4 in. 102 mm

F Window, door or building opening 36 in. 915 mm 12 in. 305 mm G To combustion air inlet from any other appliance 36 in. 915 mm 12 in. 305 mm H Non-mechanical air supply inlet to building 36 in. 915 mm 12 in. 305 mm

I Mechanical air supply inlet to building 4 6 ft. 1.83 m 3 ft. 915 mm J Soffit, overhang, eave or parapet 24 in. 610 mm 24 in. 610 mm

K Soffit vent or vent opening in an overhang, eave or parapet 6 ft. 1.83 m 6 ft. 1.83 m

L Outside corner 10

M Inside corner of an L-shaped structure (including walls and fences) 36 in. 915 mm 36 in. 915 mm

N Electric meters, gas meters, regulators and relief equipment 6 ft. 1.83 m 4 ft. 1.22 m

P Each side of center line above or below meters, regulators and relief devices 5 36 in. 915 mm 36 in. 915 mm Q Above a paved sidewalk, driveway, or parking lot on public property if adjacent

R Above a sidewalk, driveway, or parking lot on public property

S Above a sidewalk, driveway on private property between / serving both dwellings

T Under a concrete veranda, porch, deck, or balcony 7 24 in. 610 mm 24 in. 610 mm U Above, under or near exterior stairs V Into a canopy or carport

Notes:

1 - Canadian installations must comply with the current CSA B149.1 Natural Gas and Propane Installation Code and local

building codes. 2 - US installations must comply with current ANSI Z223.1/ NFPA 54 National Fuel Gas Code and local building codes. 3 - Horizontal separation center-to-center (c.c.) 4”-12” (102-305 mm). Refer to “Venting Rules and Guidelines” for

horizontal separation > 12” c.c. as it may impact vertical separation clearances. 4 - For US installations, an exhaust vent may be 3 ft above a mechanical air supply inlet if within 10 ft. [3 m] horizontally. 5 - Horizontal clearance must be observed up to a height of 15 ft. [4.6 m] above/below the meter, regulator, or relief devices 6 - Concentric Vent must protrude from the roof precisely 24” [610 mm] measuring from the terminal end-cap vanes. 7 - Permitted if veranda, porch, deck, or balcony is made of concrete and a minimum of two sides are fully open beneath. 8 - 24” is the recommended snow level allowance above grade/roofline or any surface that will support snow, debris, or ice

(i.e. for roof venting clearances - roofline and snow level). If living in a snowfall region, consult your local weather office for the maximum typical snowfall for your area.

9 - Note that the vent must maintain a minimum vertical distance above the air inlet. Example: Vent height = 18” (457

mm) above air inlet + 12” (305 mm) for air inlet above grade/roof line and snow level = 30” (762 mm) above grade and snow level.

0 - Clearances to an outside corner to be in accordance with local installation codes. 11 - In Canada, concentric vent materials are subject to approval by local inspectors. See Termination Kits in Section 4.0. 12 - Above public walkways, driveways or parking lots if adjacent to it and condensate cannot drip, freeze, or create a hazard.

13 - Contact the manufacturer for special exemptions relating to multiple appliance installations using concentric vents.

- Not permitted by National gas code(s) and/or recommended by appliance manufacturer.

Canada 1 USA 2

Min. Distance Min. Distance

- -

7 ft. 2.13 m 7 ft. 2.13 m

X X X X X X X X

Page 25

Lx Series Installation and Operation Instructions │

Figure 5-1 All Models

Termination Clearances Quick Reference Diagram

Trinity Lx

Illustrations of Termination Clearances

Side Wall Termination - Clearances Above Grade

Clearance “Q” Adjacent to Public Walkway or Driveway Minimum 7ft [2.13 m]

Figure 5-2 All Models

Two-Pipe Termination

Clearances “F” and “G” Canada – Minimum 3 ft [915 mm] The US

– Minimum 1 ft [305 mm]

Concentric Vent Termination

G – Letter represents a specific Termination Position. Refer to Table 5-1 for corresponding termination clearances.

Page 26

”

From appliance

and snow

Combustion

5 mm] above

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 5-3 Typical for All Models Figure 5-4 Lx300-800 Only

Two-Pipe Side Wall Clearances Termination Kit Side Wall Clearances

Horizontal Separation 4-12” [102 mm – 305 mm] or greater than 36” [915 mm]

Vertical Separation

Minimum 18 [457 mm]

Minimum 12” [305 mm] above grade and snow level

From appliance exhaust

To appliance air-inlet connection

Minimum 12” [305 mm] above grade and snow level

Figure 5-5 Lx150-200 Models Figure 5-6 Model Specific

Concentric Vent Side Wall Clearances Roof Top Termination Clearances

Air-Inlet (perimeter)

Exhaust Vent Outlet (center)

Min. 12” [305 mm] above grade and snow level

Minimum 12” [305 mm] above grade

exhaust

To appliance air-inlet connection

Wall clearance must be 1” [25 mm] from end cap vanes to outside of wall

Trinity Lx can also be vented through the roof. The same clearances apply to roof-top terminations as for two-pipe sidewall terminations. Two-pipe roof terminations are typical for all models; in contrast, concentric vent terminations are model specific.

MIN. 18” [457 mm] above air-intake

MIN. 12” [30 snow level

24” [610 mm] above roof from end cap vanes

Page 27

Lx Series Installation and Operation Instructions │

Trinity Lx

Extra precaution must be taken to adequately support the weight of the Vent/Air-Intake

piping in applications using roof-top terminations. Failure to follow these instructions may result in venting or appliance component failure resulting in flue gas spillage leading to property damage, serious injury or death.

Under no circumstances may an existing chimney or chase-way be used to vent or

provide combustion intake air to a Trinity Lx. Failure to follow these instructions will result in fire, property damage, serious injury or death.

Removing an Existing Boiler from Common Venting System

Do not install the Trinity Lx into a common venting system with any other appliances.

Failure to comply with this warning will cause flue gas spillage and leech carbon monoxide emissions into the surrounding air resulting in serious injury or death.

When an existing boiler is removed from a common venting system, the common

venting system is likely to be too large for proper venting of the remaining appliances connected to it. Instructions have been provided on how to remove the existing boiler and how to resize the remaining venting system. Failure to follow these instructions may result in property damage, serious injury or death.

At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

Steps to Removing an Existing Boiler

1. Seal any unused openings in the common venting system.

2. Visually inspect the venting system for proper size and horizontal pitch. Verify that there is no blockage,

restriction, leakage, corrosion or other deficiencies which could cause an unsafe condition.

3. Insofar as is practical, close fireplace dampers, all building doors and windows and all doors between the

space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan.

4. Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so

appliance will operate continuously.

5. Test for spillage at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a

match or candle, or smoke from a cigarette, cigar or pipe.

6. After it has been determined that each appliance remaining connected to the common venting system

properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas burning appliance to their previous condition of use.

7. Any improper operation of the common venting system should be corrected so the installation conforms

with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation Code. When resizing any portion of the common venting system, the common venting system should be resized to approach the minimum size as determined using the appropriate tables in Part 11 of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, Natural Gas and Propane Installation Code.

Page 28

Drain Vent

Drain Pipe

Floor Drain

Trinity Lx

6.0 CONDENSATE DRAIN

│Installation and Operation Instructions Lx Series

This unit produces liquid condensate in the heat exchanger and venting system as a product of combustion. Steps must be taken to ensure that condensate does not collect in the venting system; therefore, all exhaust piping must slope back to the appliance a minimum 1/4” per linear foot of vent. Condensate must be drained from the unit into a household drain.

Check with your municipality, or local gas company to determine if the disposal of

combustion condensate is permitted in your area (e.g. in the State of Massachusetts the condensate must be neutralized prior to entering a drain).

The following are important notes that must be taken into consideration when constructing the condensate drain system (See Figure 6-1 for further details):

• DO NOT install condensate lines outside. A frozen or blocked drain will cause the condensate to fill the

combustion chamber. This will result in a no heat condition, as the unit will shut down, and damage to the flame sensor, and components can occur.

• NEVER use copper, steel, or galvanized piping in the construction of the condensate system (condensate is

very corrosive and will corrode most metals).

• When a condensate pump is used or required, select a pump that is designed for residential furnaces.

If the combustion chamber has been flooded due to the condensate drain backing up, or

for any other reason, the combustion chamber door must be removed and the inside of the appliance must be inspected for component damage, e.g. the internal insulation at the front and back of the chamber. Failure to follow these instructions may result in fire, property damage, serious injury or death.

Figure 6-1 All Models

Condensate Drain Piping

Do not block or install piping into the top branch of the condensate drain tee.

Connection to the bottom of the condensate drain tee must be made using 1/2” Schedule 40 PVC pipe. Secure using appropriate PVC cement. All piping must be below the level where the condensate leaves the boiler.

Check with your local authorities regarding disposal of condensate (regulation may require the use of a neutralizer).

Page 29

Lx Series Installation and Operation Instructions │

7.0 INSTALLING GAS PIPING

The Trinity Lx is factory equipped to operate with Natural Gas, the installation of a

conversion kit is required prior to operating with Propane Gas. The Natural to LP Conversion Kit (see Table 7-1) must be installed prior to installing the gas piping to the appliance. Failure to properly convert the unit to operate with Propane may result in property damage, serious injury or death.

Liquefied Petroleum (LP) propane gas is heavier than air. Do not install the appliance in

a pit or similar location that will permit heavier than air gas to collect. Check with Local Codes as they may require appliances fueled with LP gas be provided with an approved means of removing unburned gases from the room. Failure to follow these instructions may result in serious injury or death.

Table 7-1 Natural to LP Propane Conversion Kit

Series Model Kit Number

Trinity Lx 150, 150E, 200, 300 82650-1 Trinity Lx 400 83017-1

* Lx800 – Do not convert to propane. Use Natural Gas only.

Installation

Refer to the current National Fuel Gas Code ANSI Z223.1/NFPA 54 or CAN/CGA B149.1 installation codes, and local codes for gas piping requirements and sizing. Pipe size running to the unit depends on:

• Length of pipe.

• Number of fittings.

• Type of gas.

• Maximum input requirement of all gas appliances in the residence.

Ensure that:

• The gas line connection to the appliance does not apply any weight to the gas valve. NTI recommends using

approved flexible gas piping (if acceptable by local codes) to connect the appliance to the gas supply (See Figure 7-1 for details).

• You plan the installation so that the piping does not interfere with the vent pipe, or the removal of the valve,

burner, and serviceable components.

• The Appliance shall be installed such that the gas ignition system components are protected from water

(dripping, spraying, rain etc.) during installation and servicing.

• The gas piping is large enough for all the appliances in the home. No appreciable drop in line pressure

should occur when any unit (or combination of units) lights or runs. Use common gas-line sizing practices.

• Always use a pipe-threading compound that is resistant to propane (LP) gas solvent action. Apply sparingly

to all male threads, starting at two threads from the end. Over doping or applying dope to the female end, can result in a blocked gas line.

• DO NOT TIGHTEN FITTINGS WITHOUT SUPPORTING THE GAS VALVE as damage to the valve or

blower motor can occur.

• Install a manual “Equipment Shut-Off Valve” as shown in Figure 7-1. Valve must be listed by a nationally

recognized testing lab.

• The gas line piping can safely be removed from the appliance for servicing, by strategically placing the gas

line shutoff and union; see example in Figure 7-1.

• All gas piping, including gas components in the appliance, are checked for leaks using a “Bubble Test”,

prior to operating the appliance.

Strain on the gas valve and fittings may result in vibration, premature component failure

and leakage and may result in a fire, explosion, property damage, serious injury or death.

Flexible gas piping cannot be used within the appliance cabinet and cannot pass through

the cabinet wall, use rigid piping as shown in Figure 7-1. Failure to follow these instructions may result in fire, property damage, serious injury or death.

Do not use an open flame to test for gas leaks. Failure to follow these instructions may

result in fire, property damage, serious injury or death .

When performing a pressure test on the gas line piping, be sure the appliance is

disconnected or isolated if the test pressure is expected to exceed 1/2 PSI (14” w.c.), as damage to the valve could occur resulting in fire, property damage, serious injury or death.

Trinity Lx

Page 30

Rigid Gas Line Piping

Flexible Gas Line Piping

Manual Shutoff Valve

Trinity Lx

Manual Shutoff Valve

Recommended to eliminate strain on the appliance gas components (only use if acceptable by local codes).

│Installation and Operation Instructions Lx Series

Union

Drip Leg

Figure 7-1 Lx150-800 (Typical)

Gas Line Connection

- Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance.

Use only rigid gas line piping within the appliance cabinet. Rigid piping must protrude beyond the outside of the cabinet wall.

Page 31

Lx Series Installation and Operation Instructions │

8.0 LIGHTING THE APPLIANCE

Before Start-up refer to Mandatory Pre-commissioning Procedure for Plastic Venting in Section 4.0. Failure to follow these instructions can result in explosions, injury or death.

Prior to turning the gas supply on and lighting the appliance, ensure all aspects of the

installation are complete and in conformance with the instructions provided in this manual, including the Vent/Air-Intake, Condensate Drain, and System Water Piping. Failure to precisely follow these instructions will cause a fire or explosion resulting in property damage, serious injury or death.

Do not store or use gasoline or other flammable vapors & liquids in the vicinity of this or

any other appliance. Failure to follow instructions could result in explosion causing property damage, serious injury or death.

If you do not follow these instructions exactly, a fire or explosion may result causing

property damage, serious injury or death.

Should overheating occur or the gas supply fail to shut off, turn off the manual gas

control valve to the appliance. Failure to follow instructions could result in explosion causing property damage, serious injury or death.

FOR YOUR SAFETY, READ BEFORE OPERATING_

A) This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the

burner. Do not try to light the burner by hand.

B) BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.

• Do not touch any electric switch.

• Do not use any phone in your building.

• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.

• If you cannot reach your gas supplier, call the fire department.

D) Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the been under water.

appliance and to replace any part of the

1. STOP! Read the safety information above very carefully.

2. Set the thermostat to lowest setting. Turn off all electric power to the appliance.

3. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the

burner. Do not try to light the burner by hand.

4. Turn the manual gas valve to the OFF position. Remove front access panel.

5. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas,

STOP! Follow “B” in the safety information above. If you don't smell gas, go to the next step.

6. Turn the manual gas valve ON. Wait an additional five (5) minutes smelling for gas.

7. Replace the front access panel.

8. Set thermostat to highest setting. Turn on all electric power to the appliance.

9. Ignition sequence is automatic. Combustion will occur after a brief fan purge.

10. If ignition does not occur, follow the instructions “To Turn Off Gas To Appliance” and call your service

technician or gas supplier.

TO TURN OFF GAS TO THE APPLIANCE_

1. STOP! Read the safety information above very carefully.

2. Turn off all electric power to the appliance

3. Turn the manual gas valve to the OFF position

control system and any gas control which has

OPERATING INSTRUCTIONS_

Trinity Lx

Page 32

Trinity Lx

│Installation and Operation Instructions Lx Series

The initial lighting of the appliance must be performed by a licensed Gas Technician. Failure to follow instructions may result in property damage, serious injury or death.

• Ensure the appliance is wired in accordance with this manual.

• Ensure the gas shut-off valve is turned on, and that the gas system has been fully tested for leaks.

• Ensure the system is completely filled with water, and that ALL the air is purged out.

Allow primers/cements to cure for 8 hours prior to Start-up. If curing time is less than 8 hours, first perform Steps 2 through 6 of Mandatory Pre-commissioning Procedure for

Plastic Venting in Section 4.0. Failure to follow these instructions can result in explosion, serious injury or death.

Initial Start-Up

1. Turn on power to the Trinity Lx and turn-up the Thermostat(s). The appliance should run through a purge,

and combustion should occur. (The control system has a built in ignition retry, allowing the system to try at least three times, before locking-out.)

2. With the unit operating at full capacity, verify that the gas line pressure is 4-10.5 inches w.c. for Natural gas,

and 9-13 inches w.c. for Propane (See Section 9.0 for details).

3. Using an appropriate Oxygen or Carbon Dioxide analyzer, take a sample of the flue gas. The sample must

fall within the acceptable ranges for Carbon Dioxide, which is 8.5% - 9.5% for Natural gas, and 9.5%-10.5% for propane (See Section 9.0 for details).

4. Perform at least three lights in succession to ensure proper operation.

5. After the three successive lights, unplug the flame probe, and allow the unit to cycle again. Ensure that it

tries to light, and locks out on safety reset. Once you have successfully activated the flame safety system, replace the wire on the flame sensor, and reconfirm proper lighting.

If the unit fails to light consistently and smoothly, contact NTI for technical assistance at 1-800-688-2575. Never allow the appliance to operate if the ignition or operation of the

burner is rough or erratic. Failure to follow these instructions may result in serious injury or death.

The flame probe uses a single electrode located in the burner door at the 6 O’clock

position. DO NOT remove the wire from the dual electrode located in the burner door at the 3 O’clock position; this device is used for spark igniting and delivers a high voltage potential which would result in an EXTREME ELECTRICAL SHOCK possibly causing serious injury or death.

Re-lighting Unit

1. Stop and read these instructions very carefully.

2. Set the thermostat to the lowest setting, and then turn off all power to the appliance.

3. This appliance does not have a pilot. It is equipped with an ignition device that automatically lights the

burner. Do not try to light the burner by hand.

4. Turn the gas shut-off valve to the off position, and then remove the front cover.

5. Wait five (5) minutes to clear out any gas. Then check for gas, including near the floor. If you smell gas

“Stop” and follow “B” above. If you don’t detect any gas proceed to the next step.

6. Turn the gas shut-off valve to the on position, wait an addition five (5) minutes and check for gas.

7. Replace the front cover.

8. Set the thermostat to the highest setting, and then turn on all power to the appliance.

9. Ignition sequence is automatic, combustion will occur after a brief fan purge. Ignition will retry 3 times.

10. If ignition does not occur, “Turn off the gas and electricity to the appliance” and contact a professional

service technician, or gas supplier.

Turning Off The Appliance

1. Set the thermostat to the lowest setting, and then turn off all power to the appliance.

2. Turn the gas shut-off valve to the off position.

Page 33

Lx Series Installation and Operation Instructions │

9.0 GAS VALVE AND BURNER SET-UP

The Trinity Lx gas valve must be set-up by a licensed Gas Technician. Improper set-up

may result in incorrect operation, damage to components or property, injury or death.

Gas Line Pressure

The appliance gas valve is equipped with a line pressure test port; see Figures 9-1 through 9-4. Use the following procedure to measure the gas line pressure to the appliance to ensure if falls within the range given in Table 9-1:

1. Turn the supply of gas to the appliance off.

2. Open the bleed screw of the line pressure test port approximately 1-1/2 turns (Lx150-400 models). This

port is directly connected to the gas line feeding the appliance. For Lx800 models, replace 1/8” NPT plug in the inlet flange of the gas valve with a hose barb fitting suitable for manometer tubing used. See Figure 9-4.

3. Force 1/4" ID tubing over the housing of the line pressure test port; install the other end of the tubing to an

appropriate line pressure test gauge or manometer. Ensure both ends of the tubing make a tight connection.

4. Open the supply of gas to the appliance and check for gas leaks.

5. Observe the line pressure under static conditions and compare it to Table 9-1. The pressure will be greatest

under static conditions.

6. With all other gas appliances in the applications running, operate the burner to the maximum firing rate

(See Table 9-2) and compare the observed line pressure with Table 9-1. The pressure will be lowest during the maximum flow of gas.

7. Adjust the gas line pressure to ensure the parameters in Table 9-1 are attained under all conditions. If

possible adjust the line pressure to the "Nominal/Desired" value listed in Table 9-1, while the unit is operating at the maximum modulation rate, see Table 9-2.

8. Continue observing the gas line pressure until the completion of the combustion analyses, incase

adjustments need to be made.

9. Upon completion of the line pressure testing, return the bleed screw of the Line Pressure Test Port to the

closed position. For the Lx800, replace the installed hose barb fitting with the factory 1/8” NPT plug; use NG/LP approved thread sealant.

The line pressure is a function of the gas supply and is affected solely by field provided

parameters such as line size and regulator settings. Under no circumstances can the appliance gas valve influence or be used to adjust the gas line pressure.

Failure to close the bleed screw of the Line Pressure Test Port will cause a severe leakage

of gas, resulting in a fire or explosion causing property damage, serious injury or death.

Table 9-1 Line Pressure and Combustion Parameters

Gas

Natural

Propane

Nominal/Desired Min. Max. Min. Max.

Line Pressure (inches wc) CO2 (%)*

7 4 10.5 8.5 9.5 175

11 8 13 9.5 10.5 175

*Note: it is permissible to have higher CO2 values with the burner operating at the minimum modulation rate.

Table 9-2 Minimum and Maximum Modulation Rates

Model Min. Modulation Rate (RPM) Max. Modulation Rate (RPM)

Lx150 1150 5850 Lx150E 925 4450 Lx200 925 5950 Lx300 1250 5850 Lx400 1550 7250 Lx800 1250 5300

Carbon Monoxide - Never leave the unit operating while producing Carbon Monoxide

(CO) concentrations in excess of 175ppm. Failure to follow this warning may result in serious injury or death.

Manifold Pressure - DO NOT adjust or measure the Manifold Pressure of the appliance.

Correct manifold pressure is factory set. Field adjustment could result in improper burner operation resulting in fire, explosion, property damage or death.

Trinity Lx

CO (ppm)

Max.

Page 34

Air Intake

Adj

Adjustment Screw

Air Intake

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 9-1 Lx150 Orientation

Gas Valve and Venturi Assembly

Orifice Location (See Kit 82650-1)

Throttle/Input

ustment Screw

Venturi

Figure 9-2 Lx150E, Lx200, Lx300 Orientation

Gas Valve and Venturi Assembly

Gas Valve

Manifold Pressure Test Port

Line Pressure Test Port

Gas In

Lx150E and Lx200 Orientation shown

Lx300 Assembly Orientation

rotated

clockwise

Line Pressure Test Port

Manifold Pressure Test Port

Gas Valve

Gas In

Orifice Location (See Kit 82650-1)

Venturi

Throttle/Input

Page 35

Lx Series Installation and Operation Instructions │

Adjustment

Venturi

Air Intake

Gas In

Tube

Adjustment

Venturi

Air Intake

Figure 9-3 Lx400 Orientation

Gas Valve and Venturi Assembly

Trinity Lx

Orifice Location (See Kit 83017-1)

Manifold Pressure Test Port

Throttle/Input

Screw

Line Pressure Test Port

Gas In

Gas Valve

Line Pressure Test Port (inlet flange)

Figure 9-4 Lx800 Orientation

Gas Valve and Venturi Assembly

Gas Valve

Remove cover to make adjustments to the throttle/input screw

Gas Valve Regulator Sensing

Throttle/Input

Screw

Manifold Pressure Test Port (outlet flange)

Manual Gas Shutoff Valve

Page 36

Trinity Lx

Adjustment

│Installation and Operation Instructions Lx Series

Input Screw Adjustments - The appliance is equipped with a Throttle/Input Adjustment Screw, located on the

Gas Valve and Venturi Assembly. The Throttle screw is used to adjust the flow of gas leaving the gas valve, entering the Venturi and hence entering the combustion air stream. By turning the adjustment screw in, clockwise, the flow of gas is reduced and the combustion becomes leaner, thus reducing the concentration of CO2 in the flue gases. To increase the CO2 the Throttle screw must be adjusted out, counterclockwise, thus increasing the flow of gas from the gas valve to the combustion air stream.

Lx150-300 Adjustments - The input screw for models Lx150-300 is a multiple turn valve. Fully open to close is approximately 17 turns. Typical adjustment for Natural Gas is 0-1 full turns in or out. Typical adjustment for LP Gas is 0-3 full turns in or out. See Figures 9-1 and 9-2 for input screw location.

Lx400 Adjustments - The input screw for the Lx400 is a geared valve with a 4:1 ratio. Adjusting input screw 4 complete turns will returned the valve to the original location, 2 turns from fully open will completely close the valve. Typical adjustment required is 0-1/4 turns in or out. See Figure 9-3 for input screw location.

Lx800 Adjustments - Remove the cap and adjust the input screw by turning it clockwise to decrease gas flow and counter-clockwise to increase gas flow. Typical adjustment required is 0-1/8 turns in or out. See Figure 9-4 for input screw location.

Decrease gas Turn Clockwise

Throttle/Input Adjustment Screw

Increase gas Turn Counter Clockwise

Adjustments to the Throttle screw may only be made by a qualified gas technician, while

using a calibrated combustion analyzer capable of measuring CO2 and CO. Failure to follow these instructions may result in serious injury or death.

Adjustments to the Throttle screw may only be performed if the gas line pressure is

maintained above minimum levels throughout the duration of the test; see Table 9-1. Failure to follow these instructions may result in serious injury or death.

Combustion Calibration - To calibrate burner operation, perform the following procedure using a calibrated combustion analyzer capable of measuring CO2 and CO from Natural and Propane Gas burning appliances:

1. Operate the unit at the maximum modulation rate, see Table 9-2.

2. Ensure the gas line pressure is maintained within tolerance, see Table 9-1.

3. While at the maximum modulation rate, measure the CO2 and CO; adjust as necessary, using the Throttle

Screw, to be within the limits listed in Table 9-1.

4. Operate the unit at the minimum modulation rate (Table 9-2). Ensure the combustion remains smooth and

CO2 and CO remain within the limits (Table 9-1). If not, do not adjust further, contact NTI for assistance.

Flue Gas Analysis and Adjustment

Each Trinity Lx is factory set to operate with Natural Gas, for appliances field converted to operate with Propane Gas, a flue gas analysis and adjustment is mandatory. See Table 7-1 and propane conversion instructions.

Failure to perform the flue gas analysis and adjustment detailed in this section may result

in erratic and unreliable burner operation, leading to reduced efficiency, increased fuel consumption, reduced component life, heat exchanger combustion deposits, and general unsafe operation. Failure to follow these instructions may result in serious injury or death.

Analysis – Trinity Lx flue gas test ports are located in the flue outlet adapter assembly. Test port access is either from inside the appliance cabinet (Lx150-200, Figure 9-5) or from outside the appliance cabinet (Lx300-800, Figures 9-6 and 9-7). Remove the test port plug, perform flue gas analysis, and adjust throttle/input screw as required until CO2 and CO levels are within acceptable limits. Once flue gas sampling completed, re-install test port plug. For model with a threaded plug, seal threads with Teflon tape before reinstalling plug.

Failure to re-install the test port plug will result in damage to the unit, property damage,

fire, explosion, serious injury or death.

Page 37

Lx Series Installation and Operation Instructions │

Combustion

FLUE GAS TEST PORT

PLUG

Combustion

FLUE GAS

TEST PORT

PLUG

- Remove test port plug to perform flue gas analysis. Re-install plug once sampling completed to prevent flue gas leakage during appliance operation. Failure to comply with these instructions will result in serious injury or death.

Figure 9-5 Lx150-200 Models

Flue Gas Sampling Using Test Port

Test Port

Analyzer

Trinity Lx

Figure 9-6 Lx300-400 Models

Flue Gas Sampling Using Test Port

Test Port

Analyzer

port plug to perform flue gas analysis. Re-install plug once sampling completed to prevent flue gas leakage during appliance operation. Failure to comply with these instructions will result in serious injury or death.

- Remove test

Page 38

Combustion

FLUE GAS TEST PORT

PLUG

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 9-7 Lx800 Model

Flue Gas Sampling Using Test Port

Analyzer

- Remove test

Test Port

Page 39

Lx Series Installation and Operation Instructions │

10.0 WIRING SCHEMATICS

Figure 10-1(a) Lx150-400

Connection Diagram

Trinity Lx

Page 40

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 10-1(b) Lx150-400

Ladder/Logic Diagram

Page 41

Lx Series Installation and Operation Instructions │

Figure 10-2(a) Lx800

Connection Diagram

Trinity Lx

Page 42

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 10-2(b) Lx800

Ladder/Logic Diagram

Page 43

Lx Series Installation and Operation Instructions │

11.0 INSTALLATION CHECKLIST

Trinity Lx

Installation

 1. If operating on Propane Gas, convert appliance using appropriate Kit number. See Table 7-1.  2. Locate the appliance in accordance with Section 3.0 of this manual.  3. Install the Vent/Air-Intake piping in accordance with Sections 4.0 and 5.0 of this manual. Ensure all

joints are secured and cemented properly. Both the Vent and Air-Intake pipes must terminate outdoors. Perform the Mandatory Pre-commissioning Procedure for Plastic Venting in Section 4.0.

Lx800 Only - If using Indoor Combustion Air Kit, see Table 4-5 and Section 4.0 for special instructions.

 4. Connect the condensate drain in accordance with Section 6.0 of this manual.  5. Connect the gas supply in accordance with Section 7.0 of this manual.  6. Install the plumbing in accordance with the appropriate Applications Manual (Boiler or Water Heater)

Flush/cleanse the internals of the heating system. Boiler Application - treat system water with Fernox F1 Protector. See Table 2-1 in Appendix B.

 7. Connect field wiring in accordance with Section 9.0 of this manual.  8. Advise home/building owner of their responsibilities with respect to maintaining the appliance.

The building owner is responsible for keeping the Vent/Air-Intake termination free of snow, ice, or other potential blockages and for scheduling routine maintenance on the

appliance (see Section 12.0). Failure to properly maintain the appliance may result in serious injury or death.

Start-up

Allow primers/cements to cure for 8 hours prior to Start-up. If curing time is less than 8 hours, first perform Steps 2 through 6 of Mandatory Pre-commissioning Procedure for

Plastic Venting in Section 4.0. Failure to follow these instructions can result in explosion, serious injury or death.

 1. Turn gas shut-off valve to the ON position.  2. Turn Power on to appliance.  3. Set Controller to the desired settings.  4. Turn thermostat up, Ignition will occur.

Operational Checklist

 1. System is free of gas leaks.  2. System is free of water leaks.  3. Water pressure is maintained above 15 PSI.  4. All air is purged from the heating system piping.  5. Ensure proper water flow rate; unit must not kettle, bang, hiss or flash the water to steam.  6. Ensure gas line pressure is in accordance with Section 9.0.  7. System is free of combustion leaks.  8. Unit must operate smoothly.  9. Ensure the flue gas combustion readings are within the tolerances listed in Table 9-1.  10. Each ignition must be smooth.



11. Verify that all condensate lines are clean and drain freely.

Before Leaving

 1. Remove line pressure gauge from gas valve, tighten bleed screw, test screw for leaks. See Section 9.0.  2. Install plug into the flue gas test port and test for leaks, see Section 9.0.  3. Allow the appliance to complete at least one heating cycle, or to operate for at least 15 minutes.  4. Always verify proper operation after servicing.

Instructions to Installing Contractor

 1. Ensure that the customer receives the Warranty Documentation included with the installation manual.  2. Leave the manual with the customer so they know when to call for annual maintenance and inspection.

This appliance must have water flowing through it whenever the burner is firing. Failure to comply may damage the unit, void the warranty, and cause serious injury or death.

Allowing the appliance to operate with a dirty combustion chamber will adversely affect its operation and void the warranty. Failure to clean the heat exchanger on a frequency

that matches the need of the application may result in fire, property damage, or death.

Page 44

Trinity Lx

Table 11-1 Hot Water Boiler Checklist for Controls and Safety Devices

Certification and Reporting Requirements

│Installation and Operation Instructions Lx Series

Input Btuh 400,000 to 2,500,000

Applicable Paragraph

ASME CSD-1

CAN

1-3.1-77

Compliance Means/Measures

Operating Controls

Forced Circulation



Flow Switch (in lieu of LWCO)

Water Temperature Required CW-410(b) 2.15.5



2,4

High Gas Pressure Switch



Low Gas Pressure Switch



Required

Optional CF-162 2.10 - 2.12 Optional CF-162 2.10 - 2.12

CW-130(a), CW-210(a)

- Flow Switch - Factory installed. Separate sensing elements and

switching contacts for temperature and high limit. ASME CSD-1 compliant.

Canada - Only required on High Pressure Gas Trains (> 5" psig).

Valve Train for Low Pressure Gas

2.10.3.2,

2.10.3.3,

2.10.3.4

2.10.1

2.4.2,

2.10.2.2.4

CF-150 (a),(b),(d)

CF-160, Fig. B-3

CF-180(e)

Manual Shut-off Valves Required (2)



Valve Leak Tests Required (2) CF-150(d) 2.13 Capped ports fitted.



Gas Pressure Regulator Required



Valve Closing Time 4



5 sec, max

Lubed plug-type, lever handle. Down Stream - Factory installed. Up Stream - Factory supplied; Field installed.

Integral vent limiter, regulator part of Combo Gas Valve.

Less than 1 sec.

Safety Controls and Relief Valves

LWCO not required on water tube

Low Water Fuel Cutoff 2



Water Tube Boilers

N/A CW-130 2.15.1

boilers; flow switch is mandatory. If required by other codes, must be installed as a Limit.

Water Temperature, High Limit 2



Safety Relief Valve Required CW-510 - Factory supplied; Field installed.



Approved Safety Shut-off Valve Required CF-180(b)1 2.10.2



Combustion Air Switch 4



2,4

High Gas Pressure Switch



Low Gas Pressure Switch



Pre-ignition Purging 4



Flame Safeguard (Primary) Required CF-310 2.4.1, 2.4.2 Manual Reset as per CG-610.



Flame Detector Required CF-310 2.4.1, 2.4.2 Manual Reset as per CG-610.



Combustion Air 1



Notes:

If drawing combustion air from the room supply, interlocking fan-damper-burner is required to prove combustion air. Damper interlock not required if louver (grilled) fixed in the open position. Not required for direct vent systems.

If switch installed, functioning of switch shall cause safety shutdown and lockout requiring a manual reset.

Controller meets requirements for power up with lockout. Manual Reset from controller or touchscreen display only.

Refer to ASME CSD-1, Table CF-3 for additional requirements or details.

Limit CW-410(c) 2.15.1 ASME CSD-1 compliant.

2xSSOV in one valve body, series valves, independently operated.

Recycle CF-220(a) 2.8.3 Action on loss of combustion air N/A or Limit CF-162 2.10 - 2.12

N/A or Limit CF-162 2.10 - 2.12 4 air changes

in 90 sec

Optional CG-260 2.8 See Table 4.5 in this manual.

CF-210 - Auto Pre-purge.

In Canada, only required on High Pressure Gas Trains (>5" psig).

Page 45

Lx Series Installation and Operation Instructions │

12.0 ANNUAL MAINTENANCE AND INSPECTION

This unit must be inspected at the beginning of every heating season by a Qualified Technician.

Trinity Lx

Annual Inspection Checklist

 1. Lighting is smooth and consistent, and the combustion fan is noise & vibration free.  2. The condensate freely flows from the unit, and is cleaned of sediment.  3. Relief Valve and air vents are not weeping.  4. Low water cut off is flushed (if applicable)  5. Examine all venting for evidence of leaks. Ensure vent screens are cleaned and clear of debris.  6. Check the burner plate for signs of leaking.  7. The combustion chamber must be inspected and cleaned.  8. Listen for water flow noises indicating a drop in appliance water flow rate.

Important Boilers Only - The hydronic system may need to be flushed to eliminate hard water scale (Use Fernox DS-40 Descaler, NTI PN: 83450. See Table 2-1 in Appendix B - Boiler Applications).

Boiler Only - Boiler system cleansers and corrosion inhibitors must not be used to flush contaminants from water heaters or potable water systems.

Combustion Chamber Cleaning Procedure

Units operating with LP Gas or in an industrial environment will have to be cleaned a minimum of once per year. Other applications will require the combustion chamber to be cleaned after the first year of operation, with subsequent cleanings scheduled based on the condition of the combustion chamber at the time. Unless a step is identified as model specific, the following combustion chamber cleaning procedure is the same for all models.

Crystalline Silica - Read carefully the warnings and handling instructions pertaining to Refractory Ceramic Fibers before commencing any service work in the combustion

chamber. Take all necessary precautions and use recommended personal protective equipment as required.

Cleaning Checklist

 1. Initiate a post-purge cycle to clear any gas from the combustion chamber, then turn gas valve off.  2. Lx300-800: Danger Explosion Hazard. To disconnect the metallic tubing between the blower and the

high-vent pressure switch, loosen the compression fitting at the high-vent pressure switch with a 1/2" wrench. At the blower end, support the brass fitting body with a 1/2" wrench to keep it from rotating while loosening the compression fitting nut with a 9/16" wrench. Remove tubing assembly from blower.

 3. Access the combustion chamber by removing the aluminum burner door assembly of the appliance.  4. Remove the insulation disc (P/N 83112) located in the back of the combustion chamber to avoid

damaging it during the cleaning process. The disc is held in place with a 2.5mm "Allen-head" screw.

 5. Use a vacuum with a high efficiency filter to remove any loose debris or dust.  6. Wet the inside of the combustion chamber with water. Use a garden hose with a trigger nozzle to direct

pressurized water through the gaps between the heat exchanger tubes. The water should pass in-between the heat exchanger tubes and exit via the condensate drain. This process may require the use of some dry rags or plastic to protect electrical components from being damaged by dripping or spraying water.  7. Use a nylon or other non-metallic brush to loosen the incrustations and any other contaminates that have

remained stuck on and in-between the tubes.

 8. Repeat steps 6 and 7 until the heat exchanger is clean and water from the condensate drain runs clear.  9. Re-install the insulation disc (part no. 83112) to the back of the combustion chamber.  10. Inspect the insulation disc located on the back-side of the burner door (p/n 83884). Replace if damaged.  11. Re-install the burner door, gas-supply and Air-inlet pipe, check for gas leaks.  12. Lx300-800: Reconnect the metallic tubing between the blower and the high-vent pressure switch.

Ensure the brass fitting body at the blower remains stationary and does not rotate during reconnection.

 13. Perform the Operational Check List detailed in Section 11.0.

Explosion Hazard (Lx300-800) - The metallic tubing connecting the blower and the high-vent pressure switch contains Fuel/Air Mixture. Refer to Combustion Chamber

Cleaning Procedure for instructions on connecting and disconnecting the metallic tubing. Failure to follow these instructions will result in serious injury or death.

Replace any gaskets or insulation discs that show any signs of damage and do not re-use. Failure to follow these instructions may result in fire, property damage or death.

Page 46

Trinity Lx

│Installation and Operation Instructions Lx Series

Refractory Ceramic Fibers (RFC)

Personal Protective Equipment Recommended - Read the following warnings and

handling instructions carefully before commencing any service work in the combustion chamber. The insulating material on the inside of the burner door and at the back of the combustion chamber contain Refractory Ceramic Fibers and should not be handled without personal protective equipment.

Potential Carcinogen - Use of Refractory Ceramic Fibers in high temperature

applications (above 1000oC) can result in the formation of Crystalline Silica (cristobalite), a respirable silica dust. Repeated airborne exposure to crystalline silica dust may result in chronic lung infections, acute respiratory illness, or death. Crystalline silica is listed as a (potential) occupational carcinogen by the following regulatory organizations: International Agency for Research on Cancer (IARC), Canadian Centre for Occupational Health and Safety (CCOHS), Occupational Safety and Health Administration (OSHA), and National Institute for Occupational Safety and Health (NIOSH). Failure to comply with handling instructions in Table 14-1 may result in serious injury or death.

Crystalline Silica - Certain components confined in the combustion chamber may

contain this potential carcinogen. Improper installation, adjustment, alteration, service or maintenance can cause property damage, serious injury (exposure to hazardous materials) or death. Refer to Table 14-1 for handling instruction and recommended personal protective equipment. Installation and service must be performed by a qualified installer, service agency or the gas supplier (who must read and follow the supplied instructions before installing, servicing, or removing this appliance. This appliance contains materials that have been identified as carcinogenic, or possibly carcinogenic, to humans).

Table 14-1 Handling Instructions for Refractory Ceramic Fibers (RCF)

Reduce the Risk of Exposure Precautions and Recommended Personal Protective Equipment

Avoid contact with skin and eyes Avoid breathing in silica dust

• Wear long-sleeved clothing, gloves, and safety goggles or glasses.

• Wear a respirator with a N95-rated filter efficiency or better. 1

• Use water to reduce airborne dust levels when cleaning the combustion chamber.

• Do not dry sweep silica dust. Pre-wet or use a vacuum with a high efficiency filter.

Avoid transferring contamination

• When installing or removing RFCs, place the material in a sealable plastic bag.

• Remove contaminated clothing after use. Store in sealable container until cleaned.

• Wash contaminated clothing separately from other laundry.

First Aid Measures

If irritation persists after implementing first aid measures consult a physician.

• Skin - Wash with soap and water.

• Eyes - Do not rub eyes; flush with water immediately.

• Inhalation – Breathe in fresh air; drink water, sneeze or cough to clear irritated

passage ways.

Notes:

Respirator recommendations based on CCOHS and OSHA requirements at the time this document was written. Consult

your local regulatory authority regarding current requirements for respirators, personal protective equipment, handling, and disposal of RCFs.

For more information on Refractory Ceramic Fibers, the risks, recommended handling procedures and acceptable disposal practices contact the organization(s) listed below:

Canada (CCOHS): Telephone directory listing

under Government Blue Pages Canada—Health and Safety—Canadian Centre for Occupational Health and Safety; or website http://www.ccohs.ca.

United States (OSHA): Telephone directory listing under United States Government—Department of Labor—Occupational Safety and Health Administration; or website http://www.osha.gov.

Page 47

Lx Series Installation and Operation Instructions │

13.0 PARTS LIST

Trinity Lx

For a list of parts that corresponds to the item numbers in the bubbles, refer to Table 13-1. Note that that some item numbers may appear more than once in the parts list depending on which model number is being referenced.

Building Owners - Replacement parts are available from your stocking wholesaler. Contact your local Installer or Wholesaler for assistance with parts.

Wholesalers - Contact NY Thermal Inc. directly when ordering replacement parts, 1-506-657-6000. Installers - Contact NY Thermal Inc. directly if technical assistance required, 1-800-688-2575.

Figure 13-1(a) Lx150-200 Models

Cabinet, Vent and Air-Intake Parts

Page 48

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 13-1(b) Lx150-200 Models

Heat Exchanger, Gas Valve, Blower and Burner Assembly

Figure 13-2 Lx150-400 (Common)

Electrical Housing, Controller, and Display Module

Page 49

Lx Series Installation and Operation Instructions │

Figure 13-3(a) Lx300-400 Models

Cabinet, Vent and Air-Intake Parts

Trinity Lx

Page 50

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 13-3(b) Lx300-400 Models

Heat Exchanger, Gas Valve, Blower and Burner Assembly

Page 51

Lx Series Installation and Operation Instructions │

Figure 13-4(a) Lx800 Model

Cabinet, Vent and Air-Intake Parts

Trinity Lx

101

100

104

Page 52

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 13-4(b) Lx800 Model

Heat Exchanger, Gas Valve, Blower and Burner Assembly

Reverse

Angle View

Page 53

Lx Series Installation and Operation Instructions │

Figure 13-4(c) Lx800 Model

102

Electrical Housing, Controller, and Display Module

103

102

Trinity Lx

Table 13-1 Parts List: Lx150-800 Models

Item Part # Models Description

1 82657 150 Premix burner 135.8 (Lx100-150; not Lx150E) 1 82658 150E, 200 Premix burner, 200.6 (Lx150E, Lx200) 1 84207 300 Premix burner, (Lx300) 1 83173 400 Premix burner, 327 (Lx400) 1 84134 800 Premix burner (Lx800) 2 82761 All Models Premix Burner Gasket (Lx Series) 2 84133 800 Premix Burner Gasket (Lx800) 3 82771 150,150E,200 Extended Air Tube (Lx100-200) 3 83195 400 Extended Air Tube (Lx400) 3 84132 800 Conical Air-Gas Inlet Pipe / Stabilor (Lx800) 4 82766 All Models Blower Gasket (Lx Series) 4 84026 800 Blower Gasket (Lx800) 5 82052 150 EBM Blower RG130 (Lx100-150, not Lx150E) 5 82661 150E,200,300 EBM Blower RG148/1200-3633 (Lx150E, Lx200, Lx300) 5 82994 400 EBM Blower RG148/Enhanced (Lx400) 5 84006 800 EBM Blower G1G170 (Lx800) 6 82054-2 150,150E,200,300 CVI Venturi Gasket 6 83106 400 O-ring, Venturi to Blower (Lx400) 6 84084 800 O-ring, Venturi to Blower (Lx800) 7 82054-1 150,150E,200 CVI Venturi 01 (Lx150-200) 7 81994 300 CVI Venturi 51 (Lx300) 7 82990 400 CVI Venturi (Lx400) 7 84013 800 CVI Venturi (Lx800) 8 82650 150,150E,200 CVI 5.20mm Orifice #45.900.444.107B 8 84157 300 CVI 6.20mm Orifice (Lx300) 8 82993 400-NG Gas Valve Orifice, 8.0mm, NG (Lx400)

Page 54

Trinity Lx

│Installation and Operation Instructions Lx Series

Item Part # Models Description

8 83017 400-LP Gas Valve Orifice, 6.2mm, LP (Lx400) 9 82054 150,150E,200,300 Gas Valve (CVI) VK8115F1134B (Valve Only) 9 82989 400 Gas Valve VR8615VB 1044B (Lx400) 9 84012 800 Gas Valve V8730C 1023B (Lx800) 10 83870 150,150E,200,300,400 Ignition Electrode, Dual – c/w gasket (Lx150-400) 10 84154 800 Ignition Electrode, Dual (Lx800) 11 82774 All Models Flame Probe Gasket (Lx Series) 12 82600 150,150E,200,300 Gas Valve Regulator Vent Adapter 13 83883 150,150E,200,300 CVI Gas Valve Inlet O-ring Gasket 13 83194 400 Gas Valve Connector O-ring, Large (Lx400) 13 84138 800 Gas Valve Inlet O-ring (Lx800) 14 82065 150,150E,200,300 Gas Valve (CV1) 1/2" NPT elbow #45.900.400-132B 14 82991 400 Gas Valve Adapter 45900400-138B, 3/4" NPT (Lx400) 14 84035 800 Gas Valve Adapter, 1" NPT (Lx800) 15 83606 All Models Outlet Sensor, Dual (Lx Series) 16 83223-1 150,150E,200,300,400 Low Water Pressure Switch, 1/4" NPT (Lx Series) 17 83462 150,150E,200 Street Tee, Brass, 1/4" 17 82698 300,400 1/4" NPT Brass Tee (Lx300-400) 18 83007 All Models 1/4"x 1/8" Bushing Brass (Lx Series) 19 82539 All Models Automatic Air Vent 1/8" (Lx Series) 20 83608 150,150E,200,300,400 Flue Sensor, Dual (Lx150-400) 20 84039 800 Flue Sensor, Dual (Lx800) 21 82765 150,150E,200 Composite Flue Outlet Gasket (Lx100-200) 22 82763 150,150E,200 Composite Flue Box (Lx100-200) 23 82764 150,150E,200 Trinity Flue Box to Heat Exchanger Gasket 24 83605 All Models Inlet Sensor, Single (Lx Series) 25 83706 150,150E,200,300,400 Plug, Brass, 1/4" NPT (Lx Series) 25 84075 800 Plug, Brass, 1/2" NPT (Lx800) 26 83395 150 – CAN Heat Exchanger (CAN - Lx100-150, not Lx150E) – Canada Only 26 83012 150 – US Heat Exchanger-ASME (US - Lx100-150, not Lx150E) – US Only 26 83396 150E, 200 Heat Exchanger-ASME (Lx200, Lx150E) 26 84022 300 Heat Exchanger-ASME (Lx300) 26 82926 400 Heat Exchanger-ASME (Lx400) 26 84005 800 Heat Exchanger-ASME (Lx800) 27 83042 150,150E,200 Y-Drain Fitting 5/8", White 28 83721 All Models Tee, PVC, 1/2", Sch.40, White (Lx Series) 29 83720 All Models Elbow, Street, PVC, 1/2", Sch.40, White (Lx Series) 30 83715 150,150E,200 Condensate Drain Tube (Lx150-200) 30 83907 300,400 Condensate Drain Tube (Lx300-400) 30 83996 800 Condensate Drain Tube (Lx800) 31 83112 All Models Trinity Divider Plate Insulation c/w Washer & Screw (Lx Series) 32 82770 150,150E,200,300,400 Burner Door Viton Gasket (Lx Series) 32 84136 800 Burner Door Viton Gasket (Lx800) 33 83808 150,150E,200 Burner Door Ceramic Disc (Lx150-200) 33 83950 300,400 Burner Door Ceramic Disc (Lx300-400) 33 84137 800 Burner Door Ceramic Disc (Lx800) 34 83885 150,150E,200 Cast Alum Burner Door (Lx150-200) 34 83949 300,400 Cast Alum Burner Door (Lx300-400) 34 84135 800 Cast Alum Burner Door (Lx800) 35 83934 300,400 Nipple, 1/4" x 6", Brass 113-B6 (Lx300-400) 36 82762 150,150E,200,300,400 Flame Rod (Lx150-400) 36 84155 Lx800 Flame Rod (Lx800) 37 82099 150,150E,200,300 1-1/2" MJ Coupling 37 83951 400 2" Gear Clamp Assembly (Lx400) 38 83425 150,150E,200 Elbow, Street 90, PVC Sys 15,1-1/2" 39 83426-1 150 – US 1-1/2" PVC Pipe, Sys 15, 1.75" Long

Page 55

Lx Series Installation and Operation Instructions │

Item Part # Models Description

39 83426-2 150E,200 1-1/2" PVC Pipe, Sys 15, 4.5" Long 39(a) 84208 300 1-1/2" Air Metering Assembly (Lx300) 39(b) 84209 300 2” PVC Air Inlet Assembly (Lx300) 39 83952 400 Air Inlet Assembly (Lx400) 40 83425-1 150,150E,200 Air Metering Elbow (Lx150-200) 41 83712 150,150E,200 Flue Outlet Adapter (Trinity Lx 3” PVC), c/w plug 41 83213 300,400 Flue Outlet Adapter (Lx300-400) 41 84052 800 Flue Outlet Adapter (Lx800) 42 82882 300,400 Coupling, Rubber , 4", Fernco (Lx300-400) 42 84051 800 Air Inlet Adapter SS (Lx800) 43 83477 150,150E,200 Bushing, PVC Sch. 40, 3"x1.5" 44 83712-1 150,150E,200 3/8" Stainless Steel Plug 44 84054 300,400,800 Exhaust Test Plug (Lx300-800) 45 83873 150,150E,200 TiS Wall Mount Bracket 2 (Lx150-200) 45 83953 300,400 Wall Mounting Clip (Lx300-400) 46 83505 150,150E,200,300 Grommet, Vinyl, 1/2" IPS 46 83923 400 Grommet, Vinyl, 3/4" IPS (Lx400) 46 83506 800 Grommet, Vinyl, 1" IPS (1030) (Lx800) 47 83506 150,150E,200 Grommet, Vinyl, 1-3/8" OD 47 83924 300,400 Grommet, Vinyl, 2" OD (Lx300-400) 47 84097 800 Grommet, Vinyl, 2 1/2" IPS (3125) (Lx800) 48 83874 150,150E,200 TiS Air Switch Support Clip II (Lx100-200) 48 83954 300,400 Air Switch Bracket (Lx300-400) 48 84139 800 Air Switch Bracket (Lx800) 49 82662 All Models Air Switch Huba 604.E021180 set @ .15" w.c. (Lx Series) 50 83875 150,150E,200 TiS Wall Stand-Off - Bottom (Lx150-200) 50 83955 300,400 Wall Mounting Support, Bottom (Lx300-400) 51 83508 All Models Display Molding (Lx Series) 52 83592 All Models Trinity Touch Screen Display (Lx Series) 53 83876 150,150E,200 Electrical J-box Cover R1, Left (Lx100-200) 54 83872 All Models Barrier Strip, Line Voltage (Lx Series) 55 83877 150,150E,200 Electrical J-box, Line Voltage (Lx100-200) 56 83707 All Models Ignition Coil Q652B1006/B (Lx Series) 57 83724 All Models Spark Igniter Wire, 12" (Lx Series) 58 82250 All Models SNAP BUSHING, 1" (Lx Series) 59 83592-1 All Models Power Supply – Touch Screen (Lx Series) 60 83190 150,150E,200,300,400 Transformer, 24V, 40VA (Lx150-400) 60 84047 800 Transformer, 24V, 75VA (Lx800) 61 83589 150,150E,200,300,400 ICP Honeywell Sola Controller R7910B1015/B (Lx150-400) 61 84034 800 ICP Honeywell Sola Controller R7910A1001 (Lx800) 62 83878 150,150E,200,300,400 Drawer Cover (Lx150-400) 62 84140 800 Control Panel Cover (Lx800) 63 83879 150,150E,200,300,400 Drawer (Lx150-400) 63 84141 800 Control Panel (Lx800) 64 83880 150,150E,200 Electrical J-box, Low Voltage (Lx150-200) 65 83871 150,150E,200,300,400 Barrier Strip, Low Voltage (Lx150-400) 65 84065 800 Barrier Strip, Low Voltage (Lx800) 66 83876-1 150,150E,200 Lx150-200 Electrical J-box Cover R1 (Right) 67 83517 150,150E,200,300,400 Fuse, Matrix/Lx, 2 Amp (Lx150-400) 68 83881 All Models Fuse Holder, 20 Amp at 250VAC Max (Lx Series) 69 83837 All Models Fuse, Littlefuse 7A, 250VAC, Fast Blow (Lx Series) 70 83882 All Models Touch Screen Display Support (Lx Series) 71 81027-1 All Models Outdoor Sensor, 10K (Lx Series) 72 83886 150,150E,200 Cover (Lx150-200) 72 83956 300,400 Cover (Lx300-400) 72 84142 800 Front Cover (Lx800)

Trinity Lx

Page 56

Trinity Lx

│Installation and Operation Instructions Lx Series

Item Part # Models Description

73 83887 150,150E,200 Right Side (Lx150-200) 73 84210 300 Right Side (Lx300) 73 83597 400 Right Side R1 (Lx400) 73 84143 800 Right Side (Lx800) 74 83888 150 - CAN Lx150 Left Side (CAN) 74 83888-1 150 - US Lx150 Left Side (US), not 150E 74 83888-2 150E,200 Lx150E-200 Left Side 74 84211 300 Left Side (Lx300) 74 83958 400 Left Side (Lx400) 74 84144 800 Left Side (Lx800) 75 83889 150,150E,200 Front Top (Lx150-200) 75 84212 300 Front Top (Lx300) 75 82959 400 Front Top (Lx400) 75 84145 800 Front Top (Lx800) 76 83890 150,150E,200 Top Panel Back R1 (Lx150-200) 76 83960 300,400 Rear Top (Lx300-400) 76 84146 800 Rear Top (Lx800) 77 83961 300-400 Fuel-Air Metallic Tubing with Ends (Lx400) 77 84147 800 Fuel-Air Metallic Tubing with Ends (Lx800) 78 83915 300-400 High-Vent Pressure Switch (Lx300-400) 78 84053 800 High -Vent Pressure Switch (Lx300-400) 79 83962 400 Gas Valve Orifice O-ring, Large (Lx400) 80 84057 800 Coupling, 2”, Brass 81 84010 All Models System Sensor, Pipe Sensor TSA00A4 (Lx Series) 82 84087 800 Gasket, Cork (Lx800) 83 84045 800 Cross, Brass, M5 Thread To Barb 84 84148 800 Air metering tube (Lx800) 85 84044 800 Elbow, brass, M5 to Barb (Lx800) 86 84061 800 Nipple, 1" x 6", Black Iron (Lx800) 87 84063 800 Elbow, 1", 90 deg., Street, black Iron (Lx800) 88 84025 800 Manual Shutoff Valve (Lx800) 89 84062 800 Nipple, 1" x 3 1/2", Black Iron (Lx800) 90 84064 800 Elbow, 1", 90 deg., Black Iron 91 84102 800 Flow switch, FS8-W, Paddles - 2.5” and 1”, stacked (Lx800) 92 84099 800 Bushing, 2" x 1", Brass (Lx800) 93 84058 800 Tee, 2" x 2" x 2", Brass 94 84149 800 Gas valve regulator sensing tube (Lx800) 95 84095 800 Plug, 7/8" Black Dome 96 84069 800 Clamp, U-bolt, 1" IPS (Lx800) 97 84072 800 Leg Leveler, 3/8-16 x 1/5" (Lx800) 98 84073 800 Leg Leveler Hex Base Cap (Lx800) 99 84150 800 Flow Switch Wiring Conduit (Lx800) 100 83923 800 Grommet, Vinyl, 3/4" IPS (1020) (Lx800) 101 84011 800 Gasket, Air Intake 3/16" (Lx800) 102 84056 800 Relay, Omron (Lx800) 103 84043 800 Rocker Switch, Black (Lx800) 104 84130 800 Flow Switch Wiring Conduit Fitting (Lx800)

Page 57

Lx Series Installation and Operation Instructions │

14.0 TROUBLESHOOTING

Trinity Lx

Observe the following precautions when servicing the appliance. Failure to comply with

these may result in fire, property damage, serious injury or death.

Servicing the Appliance

• Disconnect or shut off all energy sources to the appliance: 120VAC power, water and gas.

• Identify and mark wires before disconnecting or removing them.

• Never bypass electrical fuses or limit devices except temporarily for testing.

• Use proper personal protective equipment (PPE) i.e. eye protection, safety footwear.

These procedures should only be performed by qualified service personnel, when abnormal operation of the appliance is suspected. The appliance incorporates a sophisticated microprocessor based control which normally responds appropriately to varying conditions. If the appliance operation appears to be incorrect, or it is not responding at all to a demand for heat, the following is suggested to determine and correct the problem.

Before undertaking any troubleshooting procedures it is highly recommended to have

available a digital multimeter(s) capable of measuring AC and DC volts, Amperes, Resistance (ohms) and Continuity.

Check 120VAC and 24VAC at the Appliance

First, verify the following:

• There is 120V being supplied to the appliance:

o The circuit breaker in the electrical panel supplying power to the appliance is not tripped. o The service switch (if applicable) is in the ON position.

• There is a heat call from the thermostat:

o Verify 24VAC to thermostat. o The thermostat is placed at a sufficiently high setting to create a call for heat to the appliance.

To check for the presence of 120VAC and 24VAC at the appliance follow this procedure:

• Remove the appliance front cover.

• 120VAC

o Remove the Line Voltage junction box cover. First remove the #10 pan-head Phillips screw securing the

cover to the junction box. Lift the cover to release it from the appliance base and withdraw the cover from the appliance cabinet. This will expose the Line Voltage barrier strip.

o With an AC voltmeter set on the appropriate scale, measure the voltage across the L1 and L2 terminals

(terminals 1 and 5).

o If 120VAC is not detected, check the electrical service as suggested above. If the service is verified,

inspect the circuit wiring from the panel to the appliance for broken or disconnected conductors.

• 24VAC (only check if 120VAC supply is verified). o Remove the Low Voltage junction box cover. First remove the #10 pan-head Phillips screw securing the

cover to the junction box. Lift the cover to release it from the appliance base and withdraw the cover from the appliance cabinet. This will expose the Low Voltage barrier strip.

o With an AC voltmeter set on the appropriate scale, measure the voltage across the R and C terminals

(terminals 3 and 1).

o If 24VAC is not detected, check Fuse "C" (see below).

Page 58

Fuse “C” ATO

Fuse “A” 3AG

Fast-Acting

Fuse “B” 3AG

Fast-Acting

Fuse “A” 3AG

Fast-Acting

Trinity Lx

│Installation and Operation Instructions Lx Series

Figure 14-1(a) Lx150-400 Figure 14-1(b) Lx800

Control Panel Fuse Locations Control Panel Fuse Location

7A 250V

2A 32V Auto Blade Type

7A 250V

Fuses

There are three (3) fuses associated with the Trinity Lx150-400 controller but only one (1) with the Lx800 controller. Check these fuses before replacing the controller or any other electrical component; if the fuse is blown, it will prevent the protected device(s) from functioning.

To check, and if necessary replace, the fuses:

• Remove all 120VAC power from the appliance. Be careful to check that the unit is not powered from more than one source e.g. a UPS (uninterruptible power supply).

• Remove the front cover.

• On models Lx150-400 the control panel is located below the heat exchanger. Fuses "A" and "B" are

accessible by removing the spring-loaded knurled knob of their respective holders. Push the knob toward the panel, and twist approximately 1/4 turn counter-clockwise.

• To access Fuse "C", remove the two #10 pan-head Phillips screws and lift the top cover from the panel. The auto blade type fuse is installed in an "inline" style fuse holder.

• On model Lx800, the control panel is located above the heat exchanger toward the back of the unit. Fuse "A" is accessible by removing the spring-loaded knurled knob from its holder. Push the knob toward the panel, and twist approximately 1/4 turn counter-clockwise.

After inspecting and if necessary replacing fuses, replace the panel cover and front cover. Restore power to the appliance and confirm proper operation.

Only replace fuses with identical parts, see Figures 14-1(a) and (b). Failure to follow this warning may result in component failure, fire, property damage, serious injury or death.

Page 59

Lx Series Installation and Operation Instructions │

Trinity Lx

Display

A blank screen does not necessarily indicate a problem; the display may be configured to automatically blank the screen after a pre-set interval. Simply touch the screen to activate it. Confirm that 120V power is being supplied to the appliance. Then, if the screen does not become active, check Figures 14-2 and 14-3 and follow the verification procedures as outlined below:

Figure 14-2 All Models

Controller Connection Verification

Position Display Plug

Ensure the display is connected to the controller via its 4-conductor signal cable by following the procedure below:

1. Remove the unit front cover.

2. Remove the two #10 pan-head Phillips screws

securing the plastic display housing to the cabinet.

3. Pivot the housing down until its bottom edge

rests against the extended air tube or cabinet sides.

4. Verify that the two mating 4-position single-row

Molex housings are securely connected as illustrated.

Figure 14-3 All Models

Display Power Supply Verification

Display Power Supply Unit

Ensure that the display power supply is operating properly by following the procedure below:

1. Using a DC voltmeter, check for 12VDC across

the +V and –V terminals of the power supply

2. Remove the unit front cover.

3. Remove the two #10 pan-head Phillips screws

and lift the panel cover off.

4. Locate the 12VDC power supply at the front

right corner of the panel.

5. Measure the voltage across the +V and –V

terminals on the right-hand end of the supply.

6. If 12VDC is not detected across +V and –V,

replace the power supply with NTI PN83592-1.

DO NOT drop the plastic housing or allow it to swing down freely, it may be damaged by forceful impact.

Page 60

page and switch on.

Trinity Lx

│Installation and Operation Instructions Lx Series

Summary and Diagnostics Display – The Trinity Lx controller and Touchscreen display provides detailed

operational and diagnostic information for aid in troubleshooting. When power is applied to the appliance the initial page displayed is the Summary page. Information presented on the Summary page includes Demand source, Burner state, status of sensors and pumps, and so forth. Any current Alert or Lockout condition is also displayed. Accessible from the Summary page are the Diagnostics pages. Refer to the controller manual for more information.

Lockout and Alert History – The controller maintains a record of the fifteen (15) most recent events for both Lockouts and Alerts. To display the logs, touch the History button on the Summary page (refer to Section 7.0 in Appendix A - Controller and Touchscreen Display Instructions). In any situation where malfunction is suspected, always check the Alerts and Lockouts history. Entries recorded in the history provide useful information for determining the cause of the malfunction.

Optional Plug In Module (PIM) – The Trinity Lx controller has an optional removable memory module called a PIM (Plug In Module). The PIM is not supplied with the boiler and must be ordered separately if backup and restore options are desired. A copy of the non-safety configuration parameters can be stored (backed-up) to the PIM to be restored at a latter date (i.e. if the controller settings are subsequently changed) or copied to another boiler of the same model. The PIM can be useful to a heating technician who wishes to modify many of the factory settings and copy those settings to multiple boilers. (Note: the PIM may be inserted and removed from the controller with power applied). Restore the settings to the new controller with the following procedure:

• To display the Summary page, touch the Home icon at the upper left corner of the screen.

• Touch the Configure button at the lower left corner of the Summary page.

• Touch the Display Setup button at the lower right corner of the Configuration page.

• Touch the Program Module button located near the center of the Display Setup page.

• Touch the Login button at the lower right and enter the correct password; “sola”.

• Touch the Restore Parameters button.

• Confirm the restore operation by touching the Yes button.

Table 14-1 Troubleshooting Chart

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION

Display shows “System Disconnected” constantly

Burner not operating

Blown 24VAC fuse Faulty 24VAC transformer Check Power LED on controller. Verify 24VAC

Faulty controller If 24VAC present at controller terminals J8 1 & 2,

Heat demand satisfied; no call for heat

Appliance outlet temperature exceeded “Off Hysteresis”

Hold or Delay Check Summary page on Touchscreen for

Lockout Check Summary page on Touchscreen for lockout

Burner switch off Check Summary page, if Demand indicates

Check Fuse "C" using procedure above.

to controller by measuring voltage at terminals J8 1 & 2. If no 24VAC detected and Fuse "C" ok, replace transformer.

check Power LED on controller. Verify that connector J8 is securely plugged into the controller. Recycle power to appliance, if controller does not operate, replace the controller. Check Demand and Set points via Touchscreen. Check thermostat and DHW aquastat (if applicable) setting. Check outlet temperature, setpoint and hysteresis settings via Touchscreen. By design, if the outlet temperature exceeds the demand setpoint plus the Off Hysteresis, the burner shuts down.

specific cause of hold or delay.

code.

“Burner switch off” go to diagnostics burner test

Page 61

Lx Series Installation and Operation Instructions │

Trinity Lx

Table 14-1 Troubleshooting Chart

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION

Lockout 9 – Flame bias out of range Hold 27 – Flame rod shorted to ground detected

4-20mA input being overdriven. If using 4-20mA input, check to ensure current is

not greater than 21mA. A flame circuit shorted to ground may show up as a flame circuit timeout. Zero-ohm shorts can display as Hold 27.

Check to ensure condensate drain is not blocked.

Check to ensure no voltage applied to R & T

terminals. If using 4-20mA input, check to ensure

current is not greater than 21mA.

Hold 61 – Anti short-cycle Demand off Check demand. Delay is to prevent rapid cycling

of burner.

Hold 62 – Fan speed not proved

Burner ignition Hold 62 is normally seen for a brief period prior

to burner ignition.

- Blower problem

- Faulty controller

If Hold 62 persists for 15 seconds or more, check

Fan speed" on Touchscreen. If "LOW RPM",

HIGH RPM" or rapidly changing RPM value is displayed, try connecting another blower. If problem remains, replace controller.

Wiring defect Inspect blower wiring, ensure connectors at

controller and blower are securely attached.

Hold 63 – LCI OFF (Limit control input)

Replacement control incorrectly configured.

LCI must be set to “enable” on all Lx models, excluding Lx150/150E units with a serial number of 49351 or lower and Lx200/400 units with a serial number of 48251 or lower. See instructions included with replacement controller.

Hold 65 – Interrupted Air Switch OFF

No problem, normal operation Hold 65 will normally be displayed momentarily

during the drive to light-off.

Blown fuse

Check Fuse "A", blown fuse prevents blower from operating.

Faulty blower If Fuse “A” is good and blower remains off, check

120VAC supply to blower, if present replace blower. If blower is on proceed to next step.

Blocked venting Check for blockage of the exhaust vent. Blocked air inlet Check for blockage of the air inlet. Disconnected, damaged or blocked tubing

Inspect the clear vinyl tubing connecting the air switch + and – ports to the air metering elbow. Condensation or other foreign matter may be obstructing the tubing, preventing the switch from sensing differential pressure caused by air flow through the metering elbow.

Incorrect air switch setting Contact NTI technical support. Faulty air switch If venting and air inlet are clear, temporarily

jumper the air switch. If the unit lights and operates smoothly – replace air switch. If the unit fails to light or lights but runs rough or abruptly shuts down – check boiler internals for blockage.

WARNING Only jumper the air switch for

diagnosing purposes.

Incorrect air switch wiring Check that the red and orange wires are connected

to quick connect tabs 3 and 1 respectively.

Hold 66 – Interrupted air switch ON (and blower is off)

Incorrect air switch setting Contact NTI technical support. Incorrect air switch wiring Check that the red and orange wires are connected

to quick connect tabs 3 and 1 respectively.

Faulty air switch Disconnect red and orange wires from air switch

and check for open circuit between terminals 1 &

3. If continuity detected, replace air switch.

Page 62

thermistor resistance chart

, see

Table 14

-2.

Trinity Lx

│Installation and Operation Instructions Lx Series

Table 14-1 Troubleshooting Chart

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION

Hold 66 – Interrupted air switch ON (and blower is on)

Hold 67 – ILK OFF

- Blower problem

- Faulty controller

Insufficient water pressure Ensure at least 15PSI at appliance outlet. Refer to

External Limit Tripped Indication that an external limit (wired to “LIM”)

Hold 79 – Outlet High Limit

CH or DHW settings Check if CH and/or DHW set point temperature

CH or DHW pump problem

Lockout 81 – Delta T limit

Insufficient water flow OR Appliance making banging or hissing sounds

Lockout 82 – Stack limit

Dirty heat exchanger Inspect and if required clean the combustion

Faulty sensor Check resistance of stack sensor and compare to

Lockout 85 – Inlet/Outlet Inversion Limit

Pump flowing in the wrong

direction

Check low voltage wiring from blower to controller. Check VDC signal from red–green and black-green; if not 28-32VDC and 0 VDC respectfully – replace controller. If signal is correct – replace blower.

Supplementary Documentation section 2.0 System Piping.

is open. Not a problem with boiler, check external limit.

plus off hysteresis exceeds 210°F (99°C). See "Inoperative CH or DHW pump" below.

• Check Fuse "A"

• Check appliance pump.

• Ensure plumbing is correct. Refer to

Supplementary Documentation section 2.0 System Piping. Check that water pressure is at least 15PSI.

• Boilers Only - Boiler heat transfer surfaces

may be fouled with scale or magnetite. Clean with Fernox DS-40 Descaler and Cleanser. See Table 2-1 in Appendix B.

chamber and/or heat exchanger. Refer to 14.0 Annual Manintenance and Inspection and Supplementary Documentation section 2.0 System Piping.

thermistor resistance chart, see Table 14-2. Ensure water circulation is flowing into the boiler at the fitting closest to the wall.

Lockout 88 – Outlet T Rise

Insufficient water flow See Lockout 81. limit

Hold 91– Inlet sensor fault

Sensor disconnected

Faulty sensor Check resistance of sensor and compare to

Hold 92 – Outlet sensor fault

Sensor disconnected

Faulty sensor Check resistance of sensor and compare to

Hold 95 – Stack sensor fault

Sensor disconnected

Faulty sensor Check resistance of sensor and compare to

• Verify that 2-position Molex connector on

wiring harness is securely attached to mating connector on inlet sensor.

• Inspect sensor wiring.

thermistor resistance chart, see Table 14-2.

• Verify that 4-position Molex connector on

wiring harness is securely attached to mating connector on outlet sensor.

• Inspect sensor wiring.

thermistor resistance chart, see Table 14-2.

• Verify that 4-position Molex connector on

wiring harness is securely attached to mating connector on stack sensor.

• Inspect sensor wiring.

Page 63

Lx Series Installation and Operation Instructions │

Table 14-1 Troubleshooting Chart

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION

Hold 110 – Ignition failure occurred (failure to prove flame after 3 ignition attempts)

Lockout 113 – Flame circuit timeout

was limited due to IAS was open (Air switch open while burner firing) Alert 248 – CH outdoor temperature was invalid

Alert 311 – Run was terminated due to interrupted air flow switch was off

Inoperative CH and/or DHW

Spark cable disconnected Ensure that the high voltage spark cable is

securely connected to the spark generator and the igniter electrode. Check that the green ground wire is securely attached to the ¼” quick connect tab on the igniter electrode.

Insufficient gas line pressure Ensure the manual gas shutoff valve is open.

Refer to manual section 9.0 GAS VALVE AND BURNER SETUP.

Flame rod disconnected Verify that the flame rod signal wire is securely

attached to the flame rod, which is located bottom center of the burner door.

No 120VAC to Spark Generator Check wiring from controller to spark generator.

With an AC voltmeter measure voltage across J56 and ground (the controller chassis is connected to the 120VAC supply ground) during trial for ignition.

Faulty Spark Generator During trial for ignition check for arc on spark

electrode via the observation port located next to the spark electrode in the burner door. If the spark generator is receiving 120VAC and no spark is observed, replace the spark generator.

No 24VAC to Gas Valve Check the wiring harness for loose or interrupted

connections of the gas valve wiring. With an AC voltmeter, measure the voltage from controller terminals J5-2 to J4-10. There should be 24VAC present during trial for ignition.

Faulty Gas Valve The gas valve emits an audible click when it

switches on or off. If the controller is providing 24VAC to the gas valve, and the wiring is intact, it should be possible to detect if the valve is

responding. A flame circuit shorted to ground may show up as a flame circuit timeout. High resistance shorts can display as Lockout 113.

Check to ensure condensate drain is not blocked.

Check to ensure no voltage applied to R & T

terminals. If using 4-20mA input, check to ensure

current is not greater than 21mA. Blocked venting Check for blockage of the exhaust vent. Alert 128 - Modulation rate

Blocked air inlet Check for blockage of the air inlet.

Outdoor sensor not connected The Trinity Lx is factory set with Outdoor Reset

enabled. Connect outdoor sensor or disable

Outdoor Reset. Outdoor sensor wiring Check wiring of outdoor sensor. Wires should

connect to Low Voltage barrier terminals 11 & 12. Faulty sensor Check sensor. Should be free of ice and snow.

Check resistance of sensor and compare to

thermistor resistance chart, see Table 14-2. Blocked venting Check for blockage of the exhaust vent. Blocked air inlet Check for blockage of the air inlet. Disconnected, damaged or blocked tubing

Inspect the clear vinyl tubing connecting the air

switch + and – ports to the air metering elbow.

Condensation or other foreign matter may be

obstructing the tubing, preventing the switch from

sensing differential pressure caused by air flow

through the metering elbow. Incorrect air switch setting Contact NTI technical support. Blown fuse

Blown fuse

Check Fuse "A".

Check Fuse "B".

Trinity Lx

Page 64

Trinity Lx

│Installation and Operation Instructions Lx Series

Table 14-1 Troubleshooting Chart

PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION

Faulty controller If Fuse “B” not blown, and controller is operating,

navigate to pump diagnostic on display. Manually

switch pump on, check for 120VAC at pump

connection terminal on line voltage barrier strip. If

120VAC not detected, replace controller. Faulty pump If 120VAC supplied to pump, and pump does not

operate, replace pump.

Blower operating at high speed while burner off

Blower signal cable disconnected

• Verify that the 5-position Molex connector on

the wiring harness is securely connected to its mating connector on the blower.

• Check that the 4-position Molex connector on

wiring harness is securely connected to its mating connector on the controller.

No 24VAC to controller

• Check Power LED on controller.

• Check Fuse "C".

• With an AC voltmeter measure voltage at

terminals J8 1 & 2, 24VAC should be present.

Blower not operating

Blower signal cable disconnected Verify that the 5-position Molex connector on the

wiring harness is securely connected to its mating

connector on the blower. Blower power disconnected Verify that the 3-position Molex connector on the

wiring harness is securely connected to its mating

connector on the blower. Blown fuse

Check Fuse "A" using the procedure described

above. Fuse "A" protects the blower as well as the

ignition spark generator and appliance pump. Faulty blower Measure voltage across pins 1 & 2 (black and

white wires) of 3-position connector on wiring

harness. If 120VAC detected, replace power

connector and remove 5-position signal connector.

Blower should rotate at high speed. If blower does

not rotate, replace blower.

Table 14-2 Thermistor Resistance vs. Temperature

Temp °F (°C) Resistance Ohms (Ω) Temp °F (°C) Resistance Ohms (Ω)

-22 (-30) 176,133 122 (50) 3,603

-4 (-20) 96,761 131 (55) 2,986

14 (-10) 55,218 140 (60) 2,488

32 (0) 32,650 149 (65) 2,083

41 (5) 25,390 158 (70) 1,752 50 (10) 19,900 167 (75) 1,481 59 (15) 15,710 176 (80) 1,258 68 (20) 12,490 185 (85) 1,072 77 (25) 10,000 194 (90) 918 86 (30) 8,057 203 (95) 789 95 (35) 6,531 212 (100) 680

104 (40) 5,327 230 (110) 506 113 (45) 4,369 - -

Page 65

Lx Series Installation and Operation Instructions │

Table 14-3 Hold and Lockout Codes

Code Description Note

0 None Hold / No lockout

1 Unconfigured safety data Lockout

2 Waiting for safety data verification Lockout

3 Internal fault: Hardware fault Hold

4 Internal fault: Safety Relay key feedback error Hold

5 Internal fault: Unstable power (DCDC) output Hold

6 Internal fault: Invalid processor clock Hold

7 Internal fault: Safety relay drive error Hold

8 Internal fault: Zero crossing not detected Hold

9 Internal fault: Flame bias out of range Hold

10 Internal fault: Invalid Burner control state Lockout

11 Internal fault: Invalid Burner control state flag Lockout

12 Internal fault: Safety relay drive cap short Hold

13 Internal fault: PII shorted to ILK Hold / Lockout

14 Internal fault: HFS shorted to LCI Hold / Lockout

15 Internal fault: Safety relay test failed due to feedback ON Lockout

16 Internal fault: Safety relay test failed due to safety relay OFF Lockout

17 Internal fault: Safety relay test failed due to safety relay not OFF Lockout

18 Internal fault: Safety relay test failed due to feedback not ON Lockout

19 Internal fault: Safety RAM write Lockout

20 Internal fault: Flame ripple and overflow Hold

21 Internal fault: Flame number of sample mismatch Hold

22 Internal fault: Flame bias out of range Hold

23 Internal fault: Bias changed since heating cycle starts Hold

24 Internal fault: Spark voltage stuck low or high Hold

25 Internal fault: Spark voltage changed too much during flame sensing time Hold

26 Internal fault: Static flame ripple Hold

27 Internal fault: Flame rod shorted to ground detected Hold

28 Internal fault: A/D linearity test fails Hold

29 Internal fault: Flame bias cannot be set in range Hold

30 Internal fault: Flame bias shorted to adjacent pin Hold

31 Internal fault: SLO electronics unknown error Hold

32 Internal fault: Safety Key 0 Lockout

33 Internal fault: Safety Key 1 Lockout

34 Internal fault: Safety Key 2 Lockout

35 Internal fault: Safety Key 3 Lockout

36 Internal fault: Safety Key 4 Lockout

37 Internal fault: Safety Key 5 Lockout

38 Internal fault: Safety Key 6 Lockout

39 Internal fault: Safety Key 7 Lockout

40 Internal fault: Safety Key 8 Lockout

41 Internal fault: Safety Key 9 Lockout

42 Internal fault: Safety Key 10 Lockout

43 Internal fault: Safety Key 11 Lockout

44 Internal fault: Safety Key 12 Lockout

45 Internal fault: Safety Key 13 Lockout

46 Internal fault: Safety Key 14 Lockout

47 Flame rod to ground leakage Hold

48 Static flame (not flickering) Hold

Trinity Lx

Page 66

Trinity Lx

│Installation and Operation Instructions Lx Series

Table 14-3 Hold and Lockout Codes

Code Description Note

49 24VAC voltage low/high Hold

50 Modulation fault Hold

51 Pump fault Hold

52 Motor tachometer fault Hold

53 AC inputs phase reversed Lockout

54-57 RESERVED

58 Internal fault: HFS shorted to IAS Lockout

59 Internal fault: Mux pin shorted Lockout

60 Internal fault: HFS shorted to LFS Lockout

61 Anti short cycle Hold

62 Fan speed not proved Hold

63 LCI OFF Hold

64 PII OFF N/A

65 Interrupted Airflow Switch OFF Hold

66 Interrupted Airflow Switch ON Hold

67 ILK OFF Hold

68 ILK ON N/A

69 Pilot test hold Hold

70 Wait for leakage test completion Hold

71-77 RESERVED

78 Demand lost in run Hold

79 Outlet high limit Hold

80 DHW high limit Disabled

81 Delta T limit Hold / Lockout

82 Stack limit Lockout

83-90 RESERVED

91 Inlet sensor fault Hold

92 Outlet sensor fault Hold

93 DHW sensor fault Hold

94 Header sensor fault Hold

95 Stack sensor fault Hold

96 Outdoor sensor fault Hold

97 Internal fault: A2D mismatch Lockout

98 Internal fault: Exceeded VSNSR voltage tolerance Lockout

99 Internal fault: Exceeded 28V voltage tolerance Lockout

100 Pressure sensor fault Hold

101-104 RESERVED

105 Flame detected out of sequence Hold / Lockout

106 Flame lost in MFEP Lockout

107 Flame lost early in run Lockout

108 Flame lost in run Lockout

109 Ignition failed Lockout

110 Ignition failure occurred Hold

111 Flame current lower than WEAK threshold Hold

112 Pilot test flame timeout Lockout

113 Flame circuit timeout Lockout

114-121 RESERVED

122 Light off rate proving failed Lockout

123 Purge rate proving failed Lockout

Page 67

Lx Series Installation and Operation Instructions │

Table 14-3 Hold and Lockout Codes

Code Description Note

124 High fire switch OFF Hold

125 High fire switch stuck ON Hold

126 Low fire switch OFF Hold

127 Low fire switch stuck ON Hold

128 Fan speed failed during pre-purge Hold / Lockout

129 Fan speed failed during pre-ignition Hold / Lockout

130 Fan speed failed during ignition Hold / Lockout

131 Fan movement detected during standby Hold

132 Fan speed failed during run Hold

133-135 RESERVED

136 Interrupted Airflow Switch failed to close Hold

137 ILK failed to close Hold

138-148 RESERVED

149 Flame detected Hold / Lockout

150 Flame not detected Hold

151 High fire switch ON Hold / Lockout

152 Combustion pressure ON Hold / Lockout

153 Combustion pressure OFF Hold / Lockout

154 Purge fan switch ON Hold / Lockout

155 Purge fan switch OFF Hold / Lockout

156 Combustion pressure and Flame ON Hold / Lockout

157 Combustion pressure and Flame OFF Lockout

158 Main valve ON Lockout

159 Main valve OFF Lockout

160 Ignition ON Lockout

161 Ignition OFF Lockout

162 Pilot valve ON Lockout

163 Pilot valve OFF Lockout

164 Block intake ON Lockout

165 Block intake OFF Lockout

166-171 RESERVED

172 Main relay feedback incorrect Lockout

173 Pilot relay feedback incorrect Lockout

174 Safety relay feedback incorrect Lockout

175 Safety relay open Lockout

176 Main relay ON at safe start check Lockout

177 Pilot relay ON at safe start check Lockout

178 Safety relay ON at safe start check Lockout

179-183 RESERVED

184 Invalid BLOWER/HSI output setting Lockout

185 Invalid Delta T limit enable setting Lockout

186 Invalid Delta T limit response setting Lockout

187 Invalid DHW high limit enable setting Lockout

188 Invalid DHW high limit response setting Lockout

189 Invalid Flame sensor type setting Lockout

190 Invalid interrupted air switch enable setting Lockout

191 Invalid interrupted air switch start check enable setting Lockout

192 Invalid Igniter on during setting Lockout

193 Invalid Ignite failure delay setting Lockout

Trinity Lx

Page 68

Trinity Lx

│Installation and Operation Instructions Lx Series

Table 14-3 Hold and Lockout Codes

Code Description Note

194 Invalid Ignite failure response setting Lockout

195 Invalid Ignite failure retries setting Lockout

196 Invalid Ignition source setting Lockout

197 Invalid Interlock open response setting Lockout

198 Invalid Interlock start check setting Lockout

199 Invalid LCI enable setting Lockout

200 Invalid light off rate setting Lockout

201 Invalid Light off rate proving setting Lockout

202 Invalid Main Flame Establishing Period time setting Lockout

203 Invalid MFEP flame failure response setting Lockout

204 Invalid NTC sensor type setting Lockout

205 Invalid Outlet high limit response setting Lockout

206 Invalid Pilot Flame Establishing Period setting Lockout

207 Invalid PII enable setting Lockout

208 Invalid pilot test hold setting Lockout

209 Invalid Pilot type setting Lockout

210 Invalid Post-purge time setting Lockout

211 Invalid Power up with lockout setting Lockout

212 Invalid Pre-ignition time setting Lockout

213 Invalid Pre-purge rate setting Lockout

214 Invalid Pre-purge time setting Lockout

215 Invalid Purge rate proving setting Lockout

216 Invalid Run flame failure response setting Lockout

217 Invalid Run stabilization time setting Lockout

218 Invalid Stack limit enable setting Lockout

219 Invalid Stack limit response setting Lockout

220 Unconfigured Delta T limit set point setting Lockout

221 Unconfigured DHW high limit set point setting Lockout

222 Unconfigured Outlet high limit set point setting Lockout

223 Unconfigured Stack limit set point setting Lockout

224 Invalid DHW demand source setting Lockout

225 Invalid Flame threshold setting Lockout

226 Invalid Outlet high limit set point setting Lockout

227 Invalid DHW high limit set point setting Lockout

228 Invalid Stack limit set point setting Lockout

229 Invalid Modulation output setting Lockout

230 Invalid CH demand source setting Lockout

231 Invalid Delta T limit delay setting Lockout

232 Invalid Pressure sensor type setting Lockout

233 Invalid IAS closed response setting Lockout

234 Invalid Outlet high limit enable setting Lockout

235 Invalid Outlet connector type setting Lockout

236 Invalid Inlet connector type setting Lockout

237 Invalid DHW connector type setting Lockout

238 Invalid Stack connector type setting Lockout

239 Invalid Header connector type setting Lockout

240 Invalid Outdoor connector type setting Lockout

241-255 RESERVED

Page 69

Lx Series Installation and Operation Instructions │

Trinity Lx

Table 14-4 Alert Codes

Code Description Action/Response

0 None (No alert) 1 Alert PCB was restored from factory defaults 2 Safety configuration parameters were restored from factory defaults 3 Configuration parameters were restored from factory defaults 4 Invalid Factory Invisibility PCB was detected 5 Invalid Factory Range PCB was detected 6 Invalid range PCB record has been dropped 7 EEPROM lockout history was initialized 8 Switched application annunciation data blocks

9 Switched application configuration data blocks 10 Configuration was restored from factory defaults 11 Backup configuration settings was restored from active configuration 12 Annunciation configuration was restored from factory defaults 13 Annunciation configuration was restored from backup 14 Safety group verification table was restored from factory defaults 15 Safety group verification table was updated 16 Invalid Parameter PCB was detected 17 Invalid Range PCB was detected 18 Alarm silence time exceeded maximum 19 Invalid safety group verification table was detected

20-26 RESERVED

27 Safety processor was reset 28 Application processor was reset 29 Burner switch was turned OFF 30 Burner switch was turned ON 31 Program Module (PM) was inserted into socket 32 Program Module (PM) was removed from socket 33 Alert PCB was configured 34 Parameter PCB was configured 35 Range PCB was configured 36 Program Module (PM) incompatible with product was inserted into socket 37 Program Module application parameter revision differs from application processor 38 Program Module safety parameter revision differs from safety processor 39 PCB incompatible with product contained in Program Module 40 Parameter PCB in Program Module is too large for product 41 Range PCB in Program Module was too large for product 42 Alert PCB in Program Module was too large for product 43 IAS start check was forced on due to IAS enabled 44 Low voltage was detected in safety processor 45 High line frequency occurred 46 Low line frequency occurred 47 Invalid subsystem reset request occurred 48 Write large enumerated Modbus register value was not allowed 49 Maximum cycle count was reached 50 Maximum hours count was reached 51 Illegal Modbus write was attempted 52 Modbus write attempt was rejected (NOT ALLOWED) 53 Illegal Modbus read was attempted

Page 70

Trinity Lx

│Installation and Operation Instructions Lx Series

Table 14-4 Alert Codes

Code Description Action/Response

54 Safety processor brown-out reset occurred 55 Application processor watchdog reset occurred 56 Application processor brown-out reset occurred 57 Safety processor watchdog reset occurred 58 Alarm was reset by the user at the control 59 Burner control firing rate was > absolute max rate 60 Burner control firing rate was < absolute min rate 61 Burner control firing rate was invalid, % vs. RPM 62 Burner control was firing with no fan request 63 Burner control rate (non-firing) was > absolute max rate 64 Burner control rate (non-firing) was < absolute min rate 65 Burner control rate (non-firing) was absent 66 Burner control rate (non-firing) was invalid, % vs. RPM 67 Fan off cycle rate was invalid, % vs. RPM 68 Set point was over ridden due to sensor fault 69 Modulation was over ridden due to sensor fault

70-74 RESERVED

75 Absolute max fan speed was out of range 76 Absolute min fan speed was out of range 77 Fan gain down was invalid 78 Fan gain up was invalid 79 Fan minimum duty cycle was invalid 80 Fan pulses per revolution was invalid 81 Fan PWM frequency was invalid

82-89 RESERVED

90 Modulation output type was invalid 91 Firing rate control parameter was invalid 92 Forced rate was out of range vs. min/max modulation 93 Forced rate was invalid, % vs. RPM 94 Slow start ramp value was invalid 95 Slow start degrees value was invalid 96 Slow start was ended due to outlet sensor fault 97 Slow start was end due to reference set point fault 98 CH max modulation rate was invalid, % vs. RPM 99 CH max modulation rate was > absolute max rate

100 CH modulation range (max minus min) was too small (< 4% or 40 RPM) 101 DHW max modulation rate was invalid, % vs. RPM 102 DHW max modulation rate was > absolute max rate 103 DHW modulation range (max minus min) was too small (< 4% or 40 RPM) 104 Min modulation rate was < absolute min rate 105 Min modulation rate was invalid, % vs. RPM 106 Manual rate was invalid, % vs. RPM 107 Slow start enabled, but forced rate was invalid 108 Analog output hysteresis was invalid 109 Analog modulation output type was invalid 110 IAS open rate differential was invalid 111 IAS open step rate was invalid

112 -114

RESERVED

115 Fan was limited to its minimum duty cycle

Page 71

Lx Series Installation and Operation Instructions │

Trinity Lx

Table 14-4 Alert Codes

Code Description Action/Response

116 Manual rate was > CH max modulation rate 117 Manual rate was > DHW max modulation rate 118 Manual rate was < min modulation rate 119 Manual rate in Standby was > absolute max rate 120 Modulation commanded rate was > CH max modulation rate 121 Modulation commanded rate was > DHW max modulation rate 122 Modulation commanded rate was < min modulation rate 123 Modulation rate was limited due to outlet limit 124 Modulation rate was limited due to Delta-T limit 125 Modulation rate was limited due to stack limit 126 Modulation rate was limited due to anti-condensation 127 Fan Speed out of range in RUN 128 Modulation rate was limited due to IAS was open 129 Slow start ramp setting of zero will result in no modulation rate change 130 RESERVED 131 CH demand source was invalid 132 CH P-gain was invalid 133 CH I-gain was invalid 134 CH D-gain was invalid 135 CH OFF hysteresis was invalid 136 CH ON hysteresis was invalid 137 CH sensor type was invalid 138 CH hysteresis step time was invalid 139 CH remote control parameter was invalid 140 CH ODR not allowed with remote control

141-145

RESERVED 146 CH control was suspended due to fault 147 CH header temperature was invalid 148 CH outlet temperature was invalid 149 CH steam pressure was invalid

150-156

RESERVED 157 DHW demand source was invalid 158 DHW P-gain was invalid 159 DHW I-gain was invalid 160 DHW D-gain was invalid 161 DHW OFF hysteresis was invalid 162 DHW ON hysteresis was invalid 163 DHW hysteresis step time was invalid 164 DHW sensor type was invalid 165 Inlet sensor type was invalid for DHW 166 Outlet sensor type was invalid for DHW

167-170

RESERVED 171 DHW control was suspended due to fault 172 DHW temperature was invalid 173 DHW inlet temperature was invalid 174 DHW outlet temperature was invalid

175-182

RESERVED 183 Lead Lag P-gain was invalid 184 Lead Lag I-gain was invalid

Page 72

Trinity Lx

│Installation and Operation Instructions Lx Series

Table 14-4 Alert Codes

Code Description Action/Response

185 Lead Lag D-gain was invalid 186 Lead Lag OFF hysteresis was invalid 187 Lead Lag ON hysteresis was invalid 188 Lead Lag slave enable was invalid 189 Lead Lag hysteresis step time was invalid

190-

203 RESERVED 204 Lead Lag master was suspended due to fault 205 Lead Lag slave was suspended due to fault 206 Lead Lag header temperature was invalid 207 Lead Lag was suspended due to no enabled Program Module installed 208 Lead Lag slave session has timed out

209-

221 RESERVED 222 CH frost protection temperature was invalid 223 CH frost protection inlet temperature was invalid 224 DHW frost protection temperature was invalid

225-

230 RESERVED 231 LL set point was invalid 232 LL time of day set point was invalid 233 LL outdoor temperature was invalid 234 LL ODR time of day set point was invalid 235 LL ODR time of day set point exceeded normal set point 236 LL max outdoor set point was invalid 237 LL min outdoor set point was invalid 238 LL min water set point was invalid 239 LL outdoor temperature range was too small (minimum 12 C / 22 F) 240 LL water temperature range was too small (minimum 12 C / 22 F)

241-

245 RESERVED 246 CH set point was invalid 247 CH time of day set point was invalid 248 CH outdoor temperature was invalid 249 CH ODR time of day setpoint was invalid 250 CH ODR time of day set point exceeds normal set point 251 CH max outdoor set point was invalid 252 CH min outdoor setp oint was invalid 253 CH min water set point was invalid 254 CH outdoor temperature range was too small (minimum 12 C / 22 F) 255 CH water temperature range was too small (minimum 12 C / 22 F)

256-

260 RESERVED 261 DHW set point was invalid 262 DHW time of day set point was invalid

263-

271 RESERVED 272 Abnormal Recycle: Pressure sensor fault 273 Abnormal Recycle: Safety relay drive test failed 274 Abnormal Recycle: Demand off during Pilot Flame Establishing Period 275 Abnormal Recycle: LCI off during Drive to Purge Rate 276 Abnormal Recycle: LCI off during Measured Purge Time 277 Abnormal Recycle: LCI off during Drive to Light off Rate 278 Abnormal Recycle: LCI off during Pre-Ignition test 279 Abnormal Recycle: LCI off during Pre-Ignition time

Page 73

Lx Series Installation and Operation Instructions │

Trinity Lx

Table 14-4 Alert Codes

Code Description Action/Response

280 Abnormal Recycle: LCI off during Main Flame Establishing Period 281 Abnormal Recycle: LCI off during Ignition period 282 Abnormal Recycle: Demand off during Drive to Purge Rate 283 Abnormal Recycle: Demand off during Measured Purge Time 284 Abnormal Recycle: Demand off during Drive to Light off Rate 285 Abnormal Recycle: Demand off during Pre-Ignition test 286 Abnormal Recycle: Demand off during Pre-Ignition time 287 Abnormal Recycle: Flame was on during Safe Start check 288 Abnormal Recycle: Flame was on during Drive to Purge Rate 289 Abnormal Recycle: Flame was on during Measured Purge Time 290 Abnormal Recycle: Flame was on during Drive to Light off Rate 291 Abnormal Recycle: Flame was not on at end of Ignition period 292 Abnormal Recycle: Flame was lost during Main Flame Establishing Period 293 Abnormal Recycle: Flame was lost early in Run 294 Abnormal Recycle: Flame was lost during Run 295 Abnormal Recycle: Leakage test failed 296 Abnormal Recycle: Interrupted air flow switch was off during Drive to Purge Rate 297 Abnormal Recycle: Interrupted air flow switch was off during Measured Purge Time 298 Abnormal Recycle: Interrupted air flow switch was off during Drive to Light off Rate 299 Abnormal Recycle: Interrupted air flow switch was off during Pre-Ignition test 300 Abnormal Recycle: Interrupted air flow switch was off during Pre-Ignition time 301

Abnormal Recycle: Interrupted air flow switch was off during Main Flame Establishing Period

302 Abnormal Recycle: Ignition failed due to interrupted air flow switch was off 303 Abnormal Recycle: ILK off during Drive to Purge Rate 304 Abnormal Recycle: ILK off during Measured Purge Time 305 Abnormal Recycle: ILK off during Drive to Light off Rate 306 Abnormal Recycle: ILK off during Pre-Ignition test 307 Abnormal Recycle: ILK off during Pre-Ignition time 308 Abnormal Recycle: ILK off during Main Flame Establishing Period 309 Abnormal Recycle: ILK off during Ignition period 310 Run was terminated due to ILK was off 311 Run was terminated due to interrupted air flow switch was off 312 Stuck reset switch 313 Run was terminated due to fan failure 314 Abnormal Recycle: Fan failed during Drive to Purge Rate 315 Abnormal Recycle: Fan failed during Measured Purge Time 316 Abnormal Recycle: Fan failed during Drive to Light off Rate 317 Abnormal Recycle: Fan failed during Pre-Ignition test 318 Abnormal Recycle: Fan failed during Pre-Ignition time 319 Abnormal Recycle: Fan failed during Ignition period 320 Abnormal Recycle: Fan failed during Main Flame Establishing Period 321 Abnormal Recycle: Main Valve off after 10 seconds of RUN 322 Abnormal Recycle: Pilot Valve off after 10 seconds of RUN 323 Abnormal Recycle: Safety Relay off after 10 seconds of RUN 324 Abnormal Recycle: Hardware flame bias 325 Abnormal Recycle: Hardware static flame 326 Abnormal Recycle: Hardware flame current invalid 327 Abnormal Recycle: Hardware flame rod short 328 Abnormal Recycle: Hardware invalid power

Page 74

Trinity Lx

│Installation and Operation Instructions Lx Series

Table 14-4 Alert Codes

Code Description Action/Response

329 Abnormal Recycle: Hardware invalid AC line 330 Abnormal Recycle: Hardware SLO flame ripple 331 Abnormal Recycle: Hardware SLO flame sample 332 Abnormal Recycle: Hardware SLO flame bias range 333 Abnormal Recycle: Hardware SLO flame bias heat 334 Abnormal Recycle: Hardware SLO spark stuck 335 Abnormal Recycle: Hardware SLO spark changed 336 Abnormal Recycle: Hardware SLO static flame 337 Abnormal Recycle: Hardware SLO rod shorted 338 Abnormal Recycle: Hardware SLO AD linearity 339 Abnormal Recycle: Hardware SLO bias not set 340 Abnormal Recycle: Hardware SLO bias shorted 341 Abnormal Recycle: Hardware SLO electronics 342 Abnormal Recycle: Hardware processor clock 343 Abnormal Recycle: Hardware AC phase 344 Abnormal Recycle: Hardware A2D mismatch 345 Abnormal Recycle: Hardware VSNSR A2D 346 Abnormal Recycle: Hardware 28V A2D 347 Abnormal Recycle: Hardware HFS IAS shorted 348 Abnormal Recycle: Hardware PII INTLK shorted 349 Abnormal Recycle: Hardware HFS LCI shorted 350 Abnormal Recycle: Hardware HFS LFS shorted 351 Abnormal Recycle: Invalid zero crossing 352 Abnormal Recycle: fault stack sensor 353 Abnormal Recycle: stack limit 354 Abnormal Recycle: delta T limit 355 Abnormal Recycle: fault outlet sensor 356 Abnormal Recycle: outlet high limit 357 Abnormal Recycle: fault DHW sensor 358 Abnormal Recycle: DHW high limit 359 Abnormal Recycle: fault inlet sensor 360 Abnormal Recycle: Check Parameters Failed 361 Internal error: No factory parameters were detected in control 362 Internal error: PID iteration frequency was invalid 363 Internal error: Demand-Rate interval time was invalid 364 Internal error: Factory calibration parameter for modulation was invalid 365 Internal error: CH PID P-scaler was invalid 366 Internal error: CH PID I-scaler was invalid 367 Internal error: CH PID D-scaler was invalid 368 Internal error: DHW PID P-scaler was invalid 369 Internal error: DHW PID I-scaler was invalid 370 Internal error: DHW PID D-scaler was invalid 371 Internal error: Lead Lag master PID P-scaler was invalid 372 Internal error: Lead Lag master PID I-scaler was invalid 373 Internal error: Lead Lag master PID D-scaler was invalid

374-

459 RESERVED 460 LCI demand lost in run 461 Demand lost in run 462 STAT demand lost in run

Page 75

Lx Series Installation and Operation Instructions │

Trinity Lx

Table 14-4 Alert Codes

Code Description Action/Response

463 Demand lost in run due to no flame

464-

RESERVED 467 Internal error: EEPROM write was attempted before EEPROM was initialized 468 Internal error: EEPROM cycle count address was invalid 469 Internal error: EEPROM days count address was invalid 470 Internal error: EEPROM hours count address was invalid 471 Internal error: Lockout record EEPROM index was invalid 472 Internal error: Request to write PM status was invalid 473 Internal error: PM parameter address was invalid 474 Internal error: PM safety parameter address was invalid 475 Internal error: Invalid record in lockout history was removed 476 Internal error: EEPROM write buffer was full 477 Internal error: Data too large was not written to EEPROM 478 Internal error: Safety key bit 0 was incorrect 479 Internal error: Safety key bit 1 was incorrect 480 Internal error: Safety key bit 2 was incorrect 481 Internal error: Safety key bit 3 was incorrect 482 Internal error: Safety key bit 4 was incorrect 483 Internal error: Safety key bit 5 was incorrect 484 Internal error: Safety key bit 6 was incorrect 485 Internal error: Safety key bit 7 was incorrect 486 Internal error: Safety key bit 8 was incorrect 487 Internal error: Safety key bit 9 was incorrect 488 Internal error: Safety key bit 10 was incorrect 489 Internal error: Safety key bit 11 was incorrect 490 Internal error: Safety key bit 12 was incorrect 491 Internal error: Safety key bit 13 was incorrect 492 Internal error: Safety key bit 14 was incorrect 493 Internal error: Safety key bit 15 was incorrect 494 Internal error: Safety relay timeout 495 Internal error: Safety relay commanded off 496 Internal error: Unknown safety error occurred 497 Internal error: Safety timer was corrupt 498 Internal error: Safety timer was expired 499 Internal error: Safety timings 500 Internal error: Safety shutdown

Page 76

NY Thermal Inc. 65 Drury Cove Road Saint John, NB E3H 2Z8 Canada

Technical Assistance: 1-800-688-2575

Website: www.nythermal.com

Fax: 1-506-432-1135

NTI Lx150-800, Trinity Lx150, Trinity Lx150E, Trinity Lx200, Trinity Lx300 Installation And Operation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual