NTI Tft60 - 399 Installation And Operation Instructions Manual

Trinity Tft

Model Numbers: Tft60 - 399

Version Date: 2015-06-24

INSTALLATION AND OPERATION INSTRUCTIONS FOR

TRINITY Tft BOILER

TABLE OF CONTENTS

1.0

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

2.0

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

3.0

BOILER LOCATION .......................................................................................................... 7

4.0

GENERAL VENTING ....................................................................................................... 10

5.0

VENT/AIR-INLET TERMINATION CLEARANCES ..................................................... 24

6.0

CONDENSATE DRAIN .................................................................................................... 26

7.0

INSTALLING GAS PIPING .............................................................................................. 28

8.0

LIGHTING THE BOILER ................................................................................................. 30

9.0

GAS VALVE AND BURNER SET-UP ............................................................................ 32

10.0

BOILER AND HEATING SYSTEM PIPING ................................................................... 35

11.0

LEAD LAG INSTRUCTIONS ........................................................................................... 46

12.0

FIELD WIRING ................................................................................................................. 49

13.0

WIRING SCHEMATICS ................................................................................................... 54

14.0

INSTALLATION CHECKLIST ........................................................................................ 56

15.0

ANNUAL MAINTENANCE AND INSPECTION ........................................................... 57

16.0

TROUBLESHOOTING ..................................................................................................... 59

17.0

PARTS LIST ...................................................................................................................... 81

H

HAZARD SYMBOLS AND DEFINITIONS

Danger Sign: Indicates a hazardous situation which, if not avoided, will result in serious injury or death.

Warning Sign: Indicates a hazardous situation which, if not avoided, could result in serious injury or death.

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

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

Notice Sign: Indicates a hazardous situation which, if not avoided, could result in property damage.

This Boiler 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.

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Trinity

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Installation and Operation Instructions Tft Series

Read Before Proceeding

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 boiler 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 boiler 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 boiler.

• 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 turn the gas “shutoff” valve. Never use tools. If the handle will not 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 boiler if any part has been under water. Immediately call a qualified service technician

to inspect the

boiler and to replace any part of the

control system and any gas control which has been under water.

OPERATING INSTRUCTIONS _

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

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

3. This boiler 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 boiler.

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 Boiler” and call your service technician or gas supplier.

TO TURN OFF GAS TO THE BOILER _


2. Turn off all electric power to the boiler.

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 14.0 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 boiler. This boiler contains materials that have been identified as carcinogenic, or possibly carcinogenic, to humans).

Void Warranty - This Boiler 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.

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Tft Series Installation and Operation Instructions

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1.0 INTRODUCTION

General Installation Requirements

The installation of your NTI Trinity Tft gas boiler 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 model Tft. The instructions detailed in this document supersede any and all previous instructions provided by NTI, written or otherwise.

Each unit is provided with the following:

1. Installation and Operating Instructions,

2. Appendix A – Controller and Touchscreen Display Instructions,

3. Trinity Users Manual, and

4. Natural Gas to LP Conversion Kit*

* The conversion kit is required to convert the boiler so it will safely operate with Propane Gas.

Read and understand this entire document prior to proceeding with the installation of the

Trinity Tft. Failure to follow the instructions outlined in this document will result in property damage, serious injury or death.

Energy Saving Feature - This boiler is equipped with a feature that saves energy by reducing the boiler water temperature as the heating load decreases. This feature is equipped with an override which is provided primarily to permit the use of an external energy management system that serves the same function. THIS OVERRIDE MUST NOT BE USED UNLESS AT LEAST ONE

OF THE FOLLOWING CONDITIONS IS TRUE :

 An external energy management system is installed that reduces the boiler water temperature as the heating load decreases.

 This boiler is not used for any space heating.

 This boiler is part of a modular or multiple boiler system having a total input of 300,000 BTU/hr or greater.

 This boiler is equipped with a tankless coil.

User Responsibilities

This boiler must be installed and serviced by a qualified installer or service technician. This boiler 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 (see

Section 14 – Annual Maintenance and Inspection).

Failure to have the boiler 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.

Installer Responsibilities

As the installing technician it is your responsibility to ensure the installation is performed in accordance with this instruction manual as well as any applicable local or National installation codes. It is also your responsibility to inform the User/Owner of their obligation with respect to the above description under “User Responsibilities”.

Failure to follow this warning could result in fire, serious injury, or death.

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Failure to use the appropriate Natural to LP Conversion Kit and Orifice when operating the Trinity Tft 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 conversion kit and LP orifice numbers.

ATTENTION: LIQUEFIED PETROLEUM (LP) PROPANE

The Trinity Tft is factory set to operate with Natural Gas. BEFORE OPERATING WITH PROPANE, the specified LP Conversion Kit and Orifice must be installed to convert the boiler so it will operate safely with

LP Propane. The correct kit and LP orifice is listed below (Each kit comes with conversion instructions).

Liquefied Petroleum (LP) propane gas is heavier than air; therefore, it is imperative that your Trinity Tft boiler is not installed in a pit or similar location that will permit heavier than air gas to collect. Local Codes may require boilers fueled with LP gas be provided with an approved means of removing unburned gases from the room. Check your local codes for this requirement.

Model Number

Natural to LP Propane Conversion Kit

_

Kit Number

Tft60-85

Tft110

82650-1

82650-1

Tft155-250

Tft300-399

82650-1

84471-1

LP Orifice

415 (4.15mm)

52 (5.2mm)

62 (6.2mm)

74 (7.4mm)

Boiler Vent / Air-Inlet Piping

The Trinity Tft is certified as a “Category IV” boiler, and requires a “Special Venting

System” designed for pressurized venting. The exhaust gases must be piped directly to the outdoors using the vent materials and rules outlined in these instructions. Failure to follow these instructions will result in serious injury or death.

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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 boiler or equipment. The sign shall read, in print size no less than onehalf (1/2) inch in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”

(plate included with boiler).

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.

(c) MANUFACTURER REQUIREMENTS – GAS EQUIPMENT VENTING SYSTEM PROVIDED: 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:

1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation instructions; and

2. The “special venting system” shall be Product Approved by the Board, and the instructions for that system shall include a parts list and detailed installation instructions.

(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts list for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation.

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2.0 SPECIFICATIONS

Table 2-1 Trinity Tft Specifications

DESCRIPTION Tft60 Tft85 Tft110 Tft155 Tft175 Tft200 Tft250 Tft300 Tft399

CSA Input Modulation

1,4

[MBH]

DOE Heating Capacity

1,2

[MBH]

17-60

56

17-85 21.6-108

78 99

31-155

144

31-175

163

31-200

185

31-250

230

79.8-299 79.8-399

278 380

Net I=B=R Rating

1,2

[MBH]

48 68 86 125 141 160 199 239 330

DOE AFUE

2

[%] 95 95 95 95 95 95 95 94 95.4

Water Connections – NPT

[in.]

Gas Connection - NPT, in.

Vent/Air-inlet Pipe Diameter

[in.]

3

1 (Male)

2 or 3

Dimensions H x W x D [in.]

33-3/8 x 19-3/4 x 14-1/2

Approx. Boiler Weight with Water [lbs]

Approx. Boiler Water

Content [Gallons]

Electrical Rating

110

3.2

½ (Male)

1-1/4 (Male)

3

33-3/8 x 19-3/4 x 18-1/2

180

4.9

120V/1Ph/60Hz/less than12A

1-1/2 (Male)

¾ (Male)

4

36-3/8 x 25-1/4 x 20

250

6.4

Notes:

1

Listed Input and Output ratings are at minimum vent lengths at an altitude of 0-2000ft. Numbers will be lower with longer venting and/or altitudes greater then 2000ft.

2

Ratings based on standard test procedures prescribed by the U.S. Department of Energy; certified by AHRI. Tft399 efficiency represents Thermal Efficiency (AFUE is not applicable).

3

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

4

When operating with Propane models Tft60, Tft85 and Tft110 have min/max Input Modulation rates of 17/65, 17.6/88 and 22.6/113 MBH respectfully.

Wall mounting of unit requires two people to lift the boiler into place. Failure to follow these instructions may result in property damage or personal injury.

High Altitude Operation

The Trinity Tft is designed to operate at its maximum listed capacity in installations located at 0-2000ft above

Sea Level. Since the density of air decreases as elevation increases, maximum specified capacity should be derated for elevations above 2000 ft [610 m] in accordance with Table 2-2.

Table 2-2 De-rate % for High Altitudes

2001 ft [610 m] 3000 ft [914 m] 4000 ft [1219 m] 4500 ft [1372 m] 5000 ft [1524 m] Elevations

In Canada

1

In USA

2 de-rate by 10%

- de-rate by 10% de-rate by 12% de-rate by 10% de-rate by 16% de-rate by 10% de-rate % may vary de-rate by 18% de-rate by 20%

Notes:

1

Canada: Altitudes between 2000-4500 ft [610-1372 m], de-rate by 10%. Consult local authorities for de-rating capacities for altitudes above 4500 ft [1372 m].

2

USA: De-rate capacity by 4% for every 1000 ft [305 m], if altitude is above 2000 ft [610 m].

Combustion – At elevations above 2000 feet, the combustion of the boiler 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 with Section 9.0. Failure to follow these instructions may result in property damage, serious injury, or death.

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3.0 BOILER LOCATION

In all cases, the Trinity Tft must be installed indoors in a dry location where the ambient temperature must be maintained above freezing and below 100



F [38



C]. All boiler 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 boiler 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.

Boiler Area Ventilation Air Openings

Direct Vent – If boiler area clearances are less than the recommended clearances specified in Table 3-1, the

3 boiler area must be ventilated (Exception: if the boiler area/room has a volume of 150 ft or greater, ventilation of the boiler room is not required). Each ventilation air opening must meet the minimum requirements of 1 in

2

per 1000 Btu/hr, but not less than 100 in

2

. 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.

If the "Boiler Area" does not meet the recommended clearances listed in Table 3-1, and if the boiler area has a volume less than 150 ft

3

, it is considered a Closet or Alcove. PVC vent pipe and fittings shall not be used within the closet or alcove; only approved CPVC,

Polypropylene or Stainless Steel vent pipe and fittings can be used. See Table 4-4 for a list of approved materials. Under all circumstances, the minimum clearances listed in

Table 3-1 must be provided.

Indoor Combustion Air – When using Indoor Combustion Air in lieu of Direct Vent air-inlet piping, provisions for combustion and ventilation air, in accordance with section “Air for Combustion and Ventilation,” of the

National Fuel Gas Code, ANSI Z223.1/NFPA 54 (U.S.), or Clause 8.2, 8.3 or 8.4 of Natural Gas and Propane

Installation Code, CAN/CSA B149.1 (Canada), or applicable provisions of the local building codes, must be adhered to.

Closet Installations

For closet installations it is necessary to provide two ventilation air openings as shown in Figure 3-1, each providing a minimum area equal to 1 in

2

per 1000 Btu/hr, but not less then 100 in

2

and within 6” of the top and bottom of the closet door. See Table 3-1 for minimum 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 boiler and the room is at least three (3) times the size of the alcove. Provided these conditions are met, the boiler requires no extra ventilation air openings to the space. See Table 3-1for minimum clearances.

Residential Garage Installations

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

Wall Mounting Installations

The Tft is provided with integrated wall mounting brackets. Refer to Figure 3-2 for instructions and illustrations on wall mounting.

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Table 3-1 Minimum Clearances for Installation and Service

Model No. Clearances

Minimum

Front Top

24 [610]

1

12 [305]

Dimensions - inches [mm]

Sides Back

4 [102] 0

Bottom

9 [229]

Flue Pipe

1 [25]

Trinity Tft

Recommended 36 [914] 24 [610] 12 [305] 0 24 [610] 1 [25]

Notes:

1

6” if surface is removable allowing a minimum of 24” [610 mm] clearance (i.e. closet installation). See Ventilation Air

Opening dimensions in Figure 3-1.

Closet/alcove installations in US and Canada require approved CPVC, Polypropylene or

Stainless Steel vent and air-inlet pipe and fittings (see Table 4-4); PVC is not permitted.

Failure to follow these instructions may result in damage or serious injury.

Figure 3-1 Closet Installation, Minimum Clearances

(Model Tft60-110 Shown)

Min. 1” clearance for hot water and

vent pipes

Top ventilation opening

M ax. 6” below ceiling / top

Top = 12”

Bottom = 9”

Front = 6”

(if removable)

Ventilation air opening

1in

2

per 1000 Btu/hr, min. 100in

2

Removable surface / closet door

Ventilation air opening

1in

2

per 1000 Btu/hr, min. 100in

2

Bottom ventilation opening

Max. 6” above floor / bottom

Sides = 4”

Ventilation Air Openings are not required if the boiler area meets the

Recommended Clearances listed in Table 3-1.

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Figure 3-2 Wall Mounting Instructions

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



Secure the Wall-mount bracket (B), 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 (C) to the underside of the appliance using the mounting hardware removed in Step 1; then, anchor the bottom bracket to the wall as shown using field supplied hardware.

Upper bracket (A)

Wall-mount bracket (B)

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

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





Wall Boiler

(A)

Wall-mount bracket (B)

(B)



Ensure bracket

(A) fully inserts into bracket (B)



Bottom bracket (C) shipped with boiler package

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Installation and Operation Instructions

4.0 GENERAL VENTING

Tft Series

The Trinity Tft is certified as a “Category IV” boiler requiring a “Special Venting System” designed for pressurized venting. The Exhaust Vent must be piped to the outdoors, using the vent materials 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.

Vent and Air-inlet are to be piped separately. The Trinity Tft cannot share a common vent or air-inlet with multiple boilers; unless the common venting system has been certified by

NTI (Contact NTI for details).

Failure to comply will result in serious injury or death.

Removing an Existing Boiler from Common Venting System

Do not install the Trinity Tft into a common venting system with any other boiler. 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 boilers 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.

Upon removal of an existing boiler, the following steps shall be followed for each boiler remaining in the common venting system; prior to commencing this procedure, shutdown all boilers remaining in the common venting system.

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 boilers remaining connected to the common venting system are located and other spaces of the building. Turn on clothes dryers and any boiler 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 boiler being inspected. Follow the applicable lighting instructions. Adjust thermostat so boiler 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 boiler 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 boiler to their previous condition of use.

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

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Direct Vent Installation

When installed as a Direct Vent boiler the combustion air-inlet must also be piped directly to the outdoors using the methods described in this section and in accordance with the National Fuel Gas Code, ANSI Z223.1 (U.S.) or

CSA B149.1 (Canada) and local requirements.

Indoor Combustion Air (non-Direct Vent)

When the installation uses Indoor Combustion Air (i.e. piping is not directly connecting the appliance air-inlet fitting to the outdoors), provisions for combustion and ventilation air, in accordance with section “Air for

Combustion and Ventilation,” of the National Fuel Gas Code, ANSI Z223.1/NFPA 54 (U.S.), or Clause 8.2, 8.3 or 8.4 of Natural Gas and Propane Installation Code, CAN/CSA B149.1 (Canada), or applicable provisions of the local building codes, must be adhered to.

The boiler shall be located so as not to interfere with proper circulation of combustion, ventilation, and dilution air.

Make up air requirements for the operation of exhaust fans, kitchen ventilation systems, clothes dryers, and fireplaces shall be considered in determining the adequacy of a space to provide combustion air requirements. Failure to ensure adequate make up air to all appliances may result in personal injury or death.

Combustion Air-inlet Contamination

Be careful not to locate the air-inlet 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-inlet piping:

Table 4-1 Corrosive Products and Contaminant Sources

Products to Avoid Contaminated Sources to Avoid

Antistatic fabric softeners, bleaches, detergents, cleaners

Perchloroethylene (PCE), hydrocarbon based cleaners

Chemical fertilizer, herbicides/pesticides, dust, methane gas

Paint or varnish removers, cements or glues, sawdust

Water chlorination chemicals (chloride, fluoride)

Solvents, cutting oils, fiberglass, cleaning solvents

Refrigerant charge with CFC or HCFC

Permanent wave solutions

Laundry facilities

Dry cleaning facilities

Farms or areas with livestock and manure

Wood working or furniture refinishing shops

Swimming pools, hot tubs

Auto body or metal working shops

Refrigerant repair shops

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 boiler. Failure to follow instructions may result in serious injury or death.

It is BEST PRACTICE to pipe the combustion air-inlet directly to the outdoors (Direct

Vent installation) to avoid contamination often contained in indoor air.

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-inlet 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 boiler. 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.

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Mandatory Pre-commissioning Procedure for Plastic Venting (PVC or CPVC)

Do not apply power to the boiler prior to Step 4 in the Mandatory Pre-commissioning

Procedure for Plastic Venting.

1) Working with the power turned off to the boiler, 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 boiler gas supply shut-off valve in the off position.

3) Remove the cable from the Spark Ignition Transformer.

Spark Ignition Circuit - Maintain a safe distance (2 inches minimum) from the spark ignition circuit to avoid injury from electrical shock.

4) Turn power on to the boiler 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 cable to the Spark Ignition Transformer.

Near Boiler Vent/Air-inlet Piping

Each Trinity Tft is equipped with a short piece of approved CPVC vent pipe which is to be used when venting with PVC. Insert one end into the boiler flue outlet adapter and cement the other to the field venting (see Table 4-

4 for approved venting material). The CPVC vent pipe should extend fully into the boiler flue outlet adapter (see

Table 4-2). Ensure that the venting system does not apply a load or strain on the boiler 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 4-2 through 4-4 for illustrations.

Gasket Seating - Improper seating can cause leakage and eventual failure of the sealing gasket. Ensure the vent pipe is adequately beveled prior to inserting into the boiler flue adapter. Failure to follow these instructions may result in serious injury or death.

PVC Exhaust Venting – DO NOT insert PVC pipe directly into the appliance exhaust adapter, as it can deform from the clamping force of the gear clamp. Failure to follow these instructions may result in gasket failure and/or the dislodging of the exhaust pipe from the appliance adapter, resulting in property damage, serious injury or death.

Polypropylene or Stainless Steel Venting – When using Polypropylene or Stainless Steel piping, the appropriate appliance adapters must be used to transition the appliance vent connections to accept the respective Polypropylene or Stainless Steel venting. See Table

4-3 for a list of approved adapters. Failure to use the correct adapter will result in flue gas leakage resulting in property damage, serious injury or death.

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Figure 4-2(a) Trinity Tft60-110 & 300-399

Near Boiler Venting (CPVC)

Swing Joint

to attain slope in horizontal runs

CPVC Exhaust

Vent

Flue Outlet

Adapter (factory supplied)

Air-inlet

Pipe *

Air Inlet

Adapter

(factory supplied)

Figure 4-2(b) Trinity Tft60-110 & 300-399

Near Boiler Venting (PVC)

Swing Joint


PVC Exhaust Vent -

(check local codes and Table 4-3)

PVC Coupling

CPVC Transition

Pipe -

minimum 5” long (factory supplied)

Air-inlet

Pipe *

Air Inlet

Adapter

(factory supplied)

Flue Outlet


Mandatory Vent Pipe

Transition Pipe

See Table 4-2.

Figure 4-2(c) Trinity Tft155-250

Near Boiler Venting (CPVC)

Air-inlet Pipe *

Air Inlet Adapter

(factory supplied)

Swing Joint


CPVC Exhaust

Vent

Flue Outlet


Air-inlet

Pipe *

Air Inlet

Adapter

(factory supplied)

Figure 4-2(d) Trinity Tft155-250

Near Boiler Venting (PVC)

Swing Joint to attain slope in horizontal runs

PVC Exhaust Vent -

(check local codes and Table 4-3)

PVC Coupling

CPVC Transition

Pipe - mini mum 5” long (factory supplied)

Flue Outlet


Mandatory Vent Pipe

Transition Pipe

See Table 4-2.



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

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.

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Figure 4-2(e) Trinity Tft60-110 & 300-399

Near Boiler Venting (Stainless Steel)

SS Air-inlet Pipe

Tft Series

Figure 4-2(f) Trinity Tft60-110 & 300-399

Near Boiler Venting (Polypropylene)

PPS Elbow

w/ offset angle to account for slope

PPS Air-inlet Pipe*

Swing Joint


SS Exhaust

Vent

Flue Outlet


SS Appliance Adapter

(see Table 4-3)

PPS Exhaust Vent


(factory supplied)

PPS Appliance Adapter

(see Table 4-3)

Flue Outlet Adapter

(factory supplied)

Air-inlet Adapter

(factory supplied)

Figure 4-2(g) Trinity Tft155-250 Figure 4-2(h) Trinity Tft155-250

Near Boiler Venting (Stainless Steel)

SS Air-inlet Pipe

FasNSeal Appliance

Adapter (see Table 4-3)


(factory supplied)

Swing Joint


SS Exhaust

Vent

Flue Outlet


Near Boiler Venting (Polypropylene)

PPS Air-inlet Pipe*


(factory supplied)

PPS Elbow

w/offset angle to account for slope

PPS Exhaust Vent

PPS Appliance Adapter

(see Table 4-3)

Flue Outlet Adapter

(factory supplied)



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

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

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

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Table 4-2 CPVC Vent Pipe Transition Piece (used when venting with PVC)

Model No.

Tft60-110

Tft155-250

Tft300-399

Vent Pipe Size

3”

3”

4”

CPVC Transition Vent Pipe Length

Minimum 5” [127 mm]



Table 4-3 Appliance Adapters for Polypropylene and Stainless Steel Venting

Model No. Vent Material Venting Brand

Tft60-250

Polypropylene

DuraVent – PolyPro

Centrotherm - InnoFlue

Stainless Steel DuraVent – FasNSeal

DuraVent – PolyPro

Polypropylene

Tft300-399 Centrotherm - InnoFlue

Full Insertion Depth

2-7/8” [73 mm]

2-5/8” [67 mm]

2-5/8” [67 mm]

Adapter Part No.

1,2

300150

ISAA0303

300715

300151

ISAA0404

Stainless Steel DuraVent – FasNSeal 303631

Notes:

1

Listed appliance adapters are only approved for use with the respective venting brand; i.e. a PolyPro appliance adapter shall not be used with InnoFlue venting.

2

PolyPro and FasNSeal appliance adapters are available from DuraVent (1-800-835-4429 or www.duravent.com

);

InnoFlue appliance adapters are available from Centrotherm Eco Systems (1-877-434-3432 or www.centrotherm.us.com).

Vent/Air-inlet Pipe Material

Table 4-4 Acceptable Vent and Air-Inlet Pipe Material

Items

1

Vent Piping and Fittings

Pipe Cement

Materials

2, 3

PVC - DWV

PVC Schedule 40

PVC

CPVC

Venting System Standards

United States

Canada

4

ANSI/ASTM D2265

ANSI/ASTM D1785

CPVC Schedule 40 ANSI/ASTM F441

Stainless Steel (SS) UL-1738

Polypropylene (PP) -

ANSI/ASTM D2564

ANSI/ASTM F493

All venting material in

Canada must be

ULC S636 approved.

See Note 4 below for appropriate temperature applications.

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

Primers

PVC / CPVC ANSI/ASTM F656

Notes:

1

2

Refer to Table 4-5 for Allowable Vent and Air-Inlet Pipe Sizes and Lengths.

PVC venting (exhaust and air-inlet) is not permitted within the Closet/alcove of a Closet/alcove installation.

3

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

4

ULC S636 PVC is approved for flue gas temperatures up to 149 o

F (65 o

C) and must only be used for low temperature applications. High temperature applications requiring boiler supply water temperatures greater than 140 o

F (60 o

C) must use ULC S636 CPVC, PP or SS.

The use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel®

(polyphenolsulfone) in the exhaust venting system is prohibited. Failure to follow these instructions may result in property damage, personal injury or death.

Covering non-metallic vent pipe and fittings with thermal insulation is prohibited. Failure to follow these instructions may result in property damage, personal injury or death.

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Vent/Air-inlet Pipe Length Determination

Tft Series

Use Table 4-5 to determine the maximum pipe length that can be used. The table calculates 90º elbows, and 45º elbows at 5 equivalent feet each.

Example: When using 3” pipe, a Tft60-110 can be installed with 150 equivalent feet of air-inlet piping and 150 equivalent feet of exhaust-vent piping. See Table 4-5 for more details.

Models Tft60-110 require a minimum equivalent exhaust vent length of 15’. When operating on Propane, models Tft60-110 require a minimum air-inlet length of 6’ and 11’ for 2” and 3” venting respectfully.

Table 4-5 Allowable Vent and Air-inlet Pipe Size and Lengths

Model No.

Pipe

Size

Gas

Length

(ft)

1

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

2 3 4 5 6 7 8 9

Tft60-110 NG 100 95 90 85 80 75 70 65 60 55

Tft60-85 2”

1

LP

35 30 25 20 15 10 5 - - -

Tft110

25 20 15 10 5 - - - - -

Tft60-110 150 145 140 135 130 125 120 115 110 105

3”

Tft155-250 NG/LP 100 95 90 85 80 75 70 65 60 55

Tft300-399

4”

100 95 90 85 80 75 70 65 60 55

Note:

1

See WARNING below.

PVC Exhaust Venting – When using 2” PVC venting with models Tft60-110, the first seven (7) equivalent feet of exhaust venting must be approved 2” CPVC or 3” PVC; see exceptions in Table 4-4 and Figures 4-2b and 4-2d.

Termination Options

– Direct Vent Installation

The venting system of the Tft may be terminated using field supplied piping to construct a “Two-Pipe” termination, see Figures 4-3a, 4-4a, 4-4d, 4-5a, 4-6a and 4-6d; alternatively the venting may be terminated using a factory kit selected from Table 4-6. The “IPEX Low Profile” kit (see Figures 4-3b and 4-5c) and “M&G

DuraVent Concentric (Wall)” kit (see Figures 4-3d and 4-5d) can be used for Sidewall terminations, while the

“M&G DuraVent Concentric (Roof)” kit (see Figures 4-4c and 4-6c) can be used for Rooftop terminations; the

“IPEX Concentric” kit (see Figures 4-3c, 4-4b, 4-5b and 4-6b) can be used for either Sidewall or Rooftop terminations.

Sidewall Termination - 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 and

4-6 for roof top venting options.

The vent for this appliance shall not terminate over public walkways; or near soffit vents or crawl space vents or other area where condensate of vapor could create a nuisance or hazard or cause property damage; or where condensate or vapor could cause damage or could be detrimental to the operation of regulators, relief valves, or other equipment.

Extra precaution must be taken to adequately support the weight of the Vent/Air-inlet piping in applications using roof-top terminations. Failure to follow these instructions may result in venting or boiler component failure resulting in flue gas spillage leading to property damage, serious injury or death.

Optional Termination Kits


Kits certified with the Trinity Tft are listed in Table 4-6 and available from IPEX, DuraVent and/or NTI. For more information on System 636 Vent Kits or wholesaler locations contact IPEX directly USA: 1-800-463-9572 or www.IPEXamerica.com

│

CAN: 1-866-473-9462 or www.ipexinc.com

. For more information on PolyPro

Vent Kits or wholesaler locations contact DuraVent directly 1-800-835-4429 or www.duravent.com. For more information on InnoFlue Vent Kits or wholesaler locations contact Centrotherm directly at 1-877-434-3432 or www.centrotherm.us.com.

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Table 4-6 Optional Vent Termination Kits

Description

Vent

Size

Supplier P/N

IPEX Low Profile

(Flush Mount)

7

2”

3”

4”

2”

196984 (NTI P/N 85062)

196985 (NTI P/N 84357)

196986 (NTI P/N 84358)

196125

IPEX Concentric

(Wall/Roof)

5,6,7,8

3”

4”

196116 (NTI P/N 82666)

197117

196021 (NTI P/N 84355)

197021

DuraVent - PolyPro

Concentric (Wall)

DuraVent - PolyPro

Concentric (Roof)

Centrotherm – InnoFlue

(Flush Mount)

2”

3”

4”

2”

3”

4”

2”

3”

2”

2PPS-HK

3PPS-HK

4PPS-HK

2PPS-VK

3PPS-VK

4PPS-VK

ISLPT0202

ISLPT0303

ICWS2413 & ICTC0224

Figure

4-3(b), 4-5(c)

4-3(c), 4-4(b),

4-5(b), 4-6(b)

Vent Material

Compatibility

PVC/CPVC

7

PVC/CPVC

7

4-3(d), 4-5(d) PVC/CPVC/PP

4-4(c), 4-6(c) PVC/CPVC/PP

PVC/CPVC/PP

Vent Option

Roof Wall






















Concentric (Wall)

9


Concentric (Roof)

9

3”

4”

2”

3”

4”

ICWS3513 & ICTC0335

ICWT352 & ICTC0335

ICWS4639 & ICTC0446

ICRT2439 & ICTC0224

ICRT3539 & ICTC0335

ICRT4679 & ICTC0446

4-3(d), 4-5(d) PVC/CPVC/PP

4-4(c), 4-6(c) PVC/CPVC/PP









Notes:

1

2

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

3

All factory termination kits are ULC S636 approved.

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

4

Piping MUST be secured to the vent terminal during installation.

5

IPEX Concentric Terminal MUST be cemented together and to the vent pipes during installation.

6

Vent Screens provided with boiler may be used with the IPEX Concentric Vent Kits; otherwise use IPEX vent screens

(2” vent screen P/N 196050; 3" vent screen P/N 196051; 4" vent screen P/N 196052 – each sold separately).

7

IPEX Low Profile and Concentric kits (excluding P/N’s 197117 & 197021) are constructed out of ULC S636 approved

PVC; check with your local authority for the acceptance of PVC as a venting material prior to use.

8

IPEX Concentric kits can be shortened to fit the requirements of the installation; see instructions included with the kit for more details.

9

Centrotherm Concentric termination kits must use the applicable “Twin pipe to concentric adapter,” part number

ICTC0224, ICTC0335 or ICTC0446.

10

2” Vent Termination Kits may only be used with models Tft60-110; see Table 4-5.

11


12


PVC In Canada - Authorities in some jurisdictions may not allow the use of any PVC venting materials with condensing boilers; check with the local safety inspector to verify compliance prior to installing a PVC Concentric Vent Kit with a Trinity Tft.

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Sidewall Venting Options


Figure 4-3(a)

Two-pipe Termination (Sidewall)

Location of exhaust and air-inlet connections vary between models, see Figure 4-2.

(model Tft60-110 shown)

Figure 4-3(b)

Low Profile Termination (Sidewall)



Inlet

Tft Series

Exhaust

Exhaust

Inlet

Figure 4-3(c)

IPEX Concentric Termination (Sidewall)



Inlet

Exhaust

Figure 4-3(d)

PolyPro / InnoFlue Concentric Termination (Sidewall)



Inlet

Exhaust

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Roof Venting Options


Figure 4-4(a)

Two-pipe Termination (Roof)

Figure 4-4(b)

IPEX Concentric Termination (Roof)





Inlet

Inlet

Exhaust

Exhaust

Figure 4-4(c)

PolyPro / InnoFlue Concentric Termination (Roof)



Figure 4-4(d)

Two-pipe Termination (Roof-exhaust / Sidewall-inlet)



Exhaust

Inlet

Exhaust

Inlet

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Sidewall Termination Details


Figure 4-5(a)

Exhaust

Two-Pipe Termination (Sidewall)

Horizontal

4-

12” or greater than 36”

Figure 4-5(b)

IPEX Concentric Termination (Sidewall)

Refer to documentation included with termination kit for complete installation instructions.

Exhaust

Exhaust

Air-inlet

Vertical

Min. 18”

Air-inlet

Gas Vent Directly Below

Keep Free of Obstructions

Air-inlet

Air-inlet around perimeter (1-

2” from wall)

Exhaust through center

Vent Screen

Vent Screen

Min. 12” above grade or snow level Vent pipe piece to retain vent screen

Min. 12” above grade or snow level

Vent pipe piece to retain vent screen

Figure 4-5(c)

IPEX Low Profile Termination


Exhaust

Air-inlet

Figure 4-5(d)

DuraVent PolyPro Wall Termination


Exhaust

Air-inlet

Air-inlet around perimeter

Exhaust



Air-inlet bottom

Exhaust center



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Roof Termination Details


Figure 4-6(a)

Two-Pipe Termination (Roof)

Figure 4-6(b)

IPEX Concentric Termination (Roof)

Exhaust

Vent Screen




Air-inlet

Exhaust center

Vent Screen

Vertical

Min. 18”


Air-inlet around perimeter


Flashing

Horizontal

4-

12” or greater than 36”

Figure 4-6(c)

DuraVent PolyPro Roof Termination


Exhaust

Air-inlet

Flashing

Figure 4-6(d)

Exhaust only Roof Termination

Figure illustrates two options for exhaust termination only; neither vent pipe illustrated is for combustion air-inlet.


Exhaust

Option 1

Vent Screen



Exhaust

Option 2

Flashing

Flashing

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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-inlet Contamination: Air for combustion must be drawn 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.

5.

Wall Flashing: Under normal operating conditions this boiler 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 boiler 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-inlet piping shall be secured to the wall for more rigidity. All interior vent pipe shall be supported a minimum of every 36” [915 mm].

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 4-7.

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, and then cut a small piece of pipe to sandwich the screen into the elbow. NOTE: ensure the small piece of pipe cut, does not extend past the end of the elbow. Two screens are provided in the package. See Figures 4-5 and 4-6.

15. 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.

16. Warning Plate: For Sidewall Venting, 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 4-5.

17. 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].

18. 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 and 4-6 for roof top venting options.

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Figure 4-7 Venting Below Grade

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 the wall is fully sealed where the pipes penetrate.

3. The Vent/Air-inlet piping MUST be secured to the side of the building above grade, as shown, to provide rigidity.

4. Optional mounting bracket PN. 82075 for securing the exhaust pipes (only applicable for

3” PVC/CPVC venting).

12” [305 mm] plus snow allowance above grade

5. Ensure that the Vent/Air-inlet clearances are maintained, see Section 5.0 for details.

Supports every

24” [610 mm]

Air-Inlet

Figure 4-8 Outdoor 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. All normal termination clearances are maintained.

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

4. The exhaust and air-inlet are sloped back to the boiler ½” elevation for every linear foot [13 mm for every linear 305 mm].



Exhaust

Vent

Maximum of 20 ft

[6.1 m] is permitted for piping outside a building.

Figure 4-9 Existing Chimney Chase Way

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

1. The chimney is not being used by any other boiler.

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.

Chimney

Cap

Existing

Chimney

(used as a chase way)

Exhaust Vent

Air-Inlet

Exhaust Vent Min.

18” [457 mm] above air-inlet

Air-Inlet

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

Under no circumstances may an existing chimney or chase-way be used to vent or provide combustion air to a Trinity Tft. Failure to follow these instructions will result in fire, property damage, serious injury or death.

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5.0 VENT/AIR-INLET TERMINATION CLEARANCES

Tft Series

The quick reference table below is to be read in conjunction with the numbered notes as indicated, Figures 5-1 and 5-2, and the Venting Rules and Guidelines in Section 4.0. The instructions detailed in this section are a combination of Trinity Tft 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 (See Figures 5-1 and 5-2)

Canada

1

USA

2

Clearances to Air-Inlet Termination

Min. Distance Min. Distance

A Above grade/roofline and snow level

8

B Above roof line - Concentric Vent

6, 11, 13

12 in. 305 mm 12 in. 305 mm

24 in. 610 mm 24 in. 610 mm

C To exhaust vent from any other boiler

Clearances to Exhaust Vent Termination

A Above grade/roofline and snow level

8

D Minimum vertical separation above air inlet

9

E Minimum horizontal separation from air inlet

3

F Window or door that may be opened, or other building opening

G To combustion air inlet of any other appliance

H Non-mechanical air supply inlet to building

I Mechanical air supply inlet to building

4

J Soffit, overhang, eave or parapet

K Soffit vent or vent opening in an overhang, eave or parapet

L Outside corner

10

36 in. 915 mm 12 in. 305 mm

Min. Distance Min. Distance

12 in. 305 mm 12 in. 305 mm

18 in. 457 mm 18 in. 457 mm

4 in. 102 mm 4 in. 102 mm

36 in. 915 mm 12 in. 305 mm

36 in. 915 mm 12 in. 305 mm

36 in. 915 mm 12 in. 305 mm

6 ft. 1.83 m 3 ft. 915 mm

24 in. 610 mm 24 in. 610 mm

6 ft. 1.83 m

-

-

6 ft. 1.83 m

- -

M Inside corner of an L-shaped structure (including walls and fences)

U Above, under or near exterior stairs

V Into a canopy or carport

36 in. 915 mm 36 in. 915 mm

N Service regulator / vent outlet 36 in. 915 mm 36 in. 915 mm

P Each side of center line above or below meter / regulator assembly

5

36 in. 915 mm 36 in. 915 mm

Q Above a paved sidewalk, driveway, or parking lot on public property if adjacent

12

7 ft. 2.13 m 7 ft. 2.13 m

X X X X

R Above a public walkway

S Above a sidewalk or paved driveway that is located between two single family dwellings and services both dwellings

T Under a concrete veranda, porch, deck, or balcony

7

X

24 in.

X X X

610 mm 24 in. 610 mm

X

X

X

X

X

X

X

X

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).

4 - For US installations, an exhaust vent must 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.

10 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 boiler installations using concentric vents.

_

X

-

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

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Figure 5-1 Termination Clearance Quick Reference Diagram (See Table 5-1)

Illustrations of Termination Clearances

Figure 5-2 Sidewall Termination (See Table 5-1)

Clearances “F” and “G”

Canada

– Minimum 3 ft. [915 mm]

The US

– Minimum 1 ft. [305 mm]

Two-Pipe

Termination

F

Clearance “Q”

Adjacent to Public

Walkway or Driveway

Minimum 7ft. [2.13 m]

Q

G

Concentric Vent

Termination

G

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

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6.0 CONDENSATE DRAIN

Tft Series

This unit produces liquid condensate in the heat exchanger and venting system as a product of combustion.

Steps must be taken to ensure condensate does not collect in the venting system; therefore, all exhaust piping must slope back to the boiler 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 Condensate Trap Installation Instructions for further details):



DO NOT install condensate lines outside. A frozen or blocked drain will cause the condensate to back-up and leak. This may result in damage to boiler components resulting in a no heat condition; property damage may also 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.

All tubing, drains and surfaces that come in contact with condensate draining from the boiler, must be constructed out of corrosion resistant material; copper, steel and galvanized are not acceptable materials for draining condensate. Failure to abide by this caution will result in property damage.

Condensate Trap Installation Instructions (see Figure 6-1)

(Note: the Condensate Trap is factory supplied with the boiler and must be field installed)

1. Inspect Condensate Trap Assembly – Inspect the Condensate Trap to ensure all parts were shipped with the assembly (see Figure 6-1). The Condensate Trap must be periodically disassembled and cleaned as part of a regular maintenance plan.

2. Attach to Boiler Condensate Drain – Insert the inlet fitting of the Condensate Trap into the boiler condensate drain; secure with the factory supplied gear clamp (see Figure 6-1). Pull down on the Condensate

Trap and ensure that it remains securely fastened.

3. Outlet to Drain – Direct condensate from the outlet of the Condensate Trap to a household drain, condensate pump or neutralizer (check with your local authority regarding the disposal of condensate). If necessary connect suitable ¾” tubing to the bottom of the Condensate Trap and route it to drain, being careful NOT to route it higher than the Condensate Trap outlet (see Figure 6-1).

The Condensate Trap must be periodically disassembled and cleaned as part of a regular maintenance plan. Failure to clean the trap regularly can cause condensate drain blockage leading to boiler malfunction, property damage and even personal injury.

Carefully follow the above instructions and the accompanying figure – check to ensure the condensate trap is secure to the bottom of the boiler and that no strain is placed on it.

Failure to install the condensate trap properly will result in flue gas spillage and leeching of carbon monoxide emissions into the surroundings resulting in serious injury or death.

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Figure 6-1 Condensate Drain Piping



Inspect Condensate

Trap assembly

Boiler Condensate Drain

Gear Clamp

(factory supplied)

Condensate Trap

(factory supplied)



Attach to Boiler Condensate Drain

Tighten gear clamps and pull down on Condensate Trap to test secureness



Pipe Outlet to Drain

Direct condensate to a vented drain; ensure no strain is applied to the Condensate Trap and Boiler Condensate

Drain. If n ecessary, add a piece of ¾” tubing to the bottom of the Condensate Trap as illustrated.

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7.0 INSTALLING GAS PIPING

The Trinity Tft 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 boiler. 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 boiler in a pit or similar location that will permit heavier than air gas to collect. Check with Local

Codes as they may require boilers fueled with LP gas to 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

Model Kit Number Orifice Number

Tft60-85

Tft110

Tft155-250

82650-1

82650-1

82650-1

415 (4.15mm)

52 (5.2mm)

62 (6.2mm)

Tft300-399

Installation

84471-1 74 (7.4mm)

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 boilers in the residence.

Ensure that:



The gas line connection to the boiler does not apply any weight to the gas valve. NTI recommends using approved flexible gas piping (if acceptable by local codes) to connect the boiler to the gas supply (See

Figure 7-1 for details).



You plan the installation so the piping does not interfere with the vent pipe, or the removal of the valve, burner, and serviceable components.



The Boiler is 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 gas 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 laboratory.



The gas line piping can safely be removed from the boiler 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 boiler, are checked for leaks using a “Bubble Test”, prior to operating the boiler.

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.

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

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Figure 7-1 Gas Line Connection (Typical)

Manual Gas Shutoff Valve

Should overheating occur or the gas supply fail to shutoff, close the

Manual Gas Shutoff Valve to the boiler.

Union

Flexible Gas Line Piping

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

Drip Leg / Optional Gas Supply Location

When used as the Gas Supply Location, remove cap and install on the top fitting; drip leg must be field constructed external to the boiler.

Test all gas piping, internal and external to the boiler, for leaks. Failure to follow these instructions may result in fire, property damage, serious injury or death.

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8.0 LIGHTING THE BOILER

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 boiler, ensure all aspects of the installation are complete and in conformance with the instructions provided in this manual, including the Vent/Air-Inlet, 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 boiler. 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 shutoff, close the Manual Gas Shutoff

Valve to the boiler. Failure to follow instructions could result in explosion causing property damage, serious injury or death.

FOR YOUR SAFETY, READ BEFORE OPERATING _

A) This boiler 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 boiler 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 boiler.

• 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 turn the gas “shutoff” valve. Never use tools. If the handle will not 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 boiler if any part has been under water. Immediately call a qualified service technician to inspect the

boiler and to replace any part of the

control system and any gas control which has been under water.

OPERATING INSTRUCTIONS _


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

3. This boiler 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 boiler.

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 Boiler” and call your service technician or gas supplier.

TO TURN OFF GAS TO THE BOILER _


2. Turn off all electric power to the boiler

3. Turn the manual gas valve to the OFF position

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The initial lighting of the boiler must be performed by a licensed Gas Technician.

Failure to follow instructions may result in property damage, serious injury or death.



Ensure the boiler is wired in accordance with this manual.



Ensure the gas shutoff 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 Tft and turn-up the Thermostat(s). The boiler 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 (O

2

) or Carbon Dioxide (CO

2

) analyzer, take a sample of the flue gas. The sample must fall within the acceptable ranges for CO

2

, which is 8.7% - 9.7% for Natural Gas, and 10.5%-

11.5% 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. The flame safety system will allow the unit to go through 4 ignition cycles before going to “Hold 110 – Ignition failure occurred”. Once you have confirmed this behavior, replace the wire on the flame sensor, recycle power and reconfirm proper lighting.

The flame probe is located in the burner plate; it has a single white/semi-transparent wire connected to it. DO NOT remove the orange spark cable from the ignition electrode

(also located in the burner plate); this device is used for spark ignition and produces 14,000 volts potential which would result in an EXTREME ELECTRICAL SHOCK possibly causing serious injury or death.

If the unit fails to light consistently and smoothly, contact NTI for technical assistance at

1-800-688-2575. Never allow the boiler 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.

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 boiler.

3. This boiler 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 shutoff 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 (see FOR YOUR SAFETY, READ BEFORE OPERATING). If you don’t detect any gas proceed to the next step.

6. Turn the gas shutoff 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 boiler.

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 boiler” and contact a qualified service technician, or gas supplier.

Turning Off the Boiler

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

2. Turn the gas shutoff valve to the off position.

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9.0 GAS VALVE AND BURNER SET-UP

Tft Series

Gas Line Pressure

Set-up of the Trinity Tft gas valve must be performed by a licensed Gas Technician.

Failure to perform the set-up correctly may result in incorrect operation, component failure, property damage, serious injury or death.

The boiler gas valve is equipped with a line pressure test port; see Figures 9-1 and 9-2. Use the following procedure to measure the gas line pressure to the boiler to ensure it falls within the range given in Table 9-1:

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

2. Open the bleed screw of the line pressure test port approximately 1-1/2 turns. This port is directly connected to the gas line feeding the boiler. See Figures 9-1 and 9-2.

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 boiler 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 application 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, in case adjustments need to be made.

9. Complete pressure testing, and then return the bleed screw of the Line Pressure Test Port to the closed position.

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 boiler 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

Line Pressure (inches wc) CO

2

(%)*

Gas

Nominal/Desired Min. Max. Min. Max.

CO (ppm)

Max.*

175

175

Natural

7 4 10.5 8.7 9.9

Propane

11 8 13 10 11.5

*Note: Observe the combustion products with the burner operating at the maximum modulation rate.

Table 9-2 Minimum and Maximum Modulation Rates

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

Tft60

Tft85

1525

1525

4650

6300

Tft110

Tft155

Tft175

Tft200

Tft250

Tft300

Tft399

1625

900

900

900

900

1500

1500

7000

3700

4100

4650

5900

5000

6900

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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 boiler.

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

Adjustments to the Throttle / Input Screw may only be made by a qualified gas technician, while using a calibrated combustion analyzer capable of measuring CO

2

and

CO. Adjustments may only be performed if the gas line pressure is maintained above

Decrease gas

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

Throttle/Input Adjustment Screw

Increase gas

Turn Counter Clockwise

Adjustment

Throttle / Input Screw Adjustments - The boiler is equipped with a Throttle/Input Adjustment Screw, located on the Gas Valve and Venturi Assembly. It is used to adjust the flow of gas leaving the gas valve entering the

Venturi and then the combustion air stream. Turn the adjustment screw in (clockwise) to reduce the flow of gas, make combustion leaner, and reduce the concentration of CO

2

in the flue gases. To increase the CO

2

level and flow of gas in the combustion air stream, adjust the Throttle screw out (counterclockwise).

Tft60-250 Adjustments - The throttle screw for models Tft60-250 is a multiple turn valve. Typical adjustment required for Natural Gas is 0-1 full turns in or out from the factory setting. Typical adjustment for LP Gas is

0-3 full turns in or out from the factory setting upon inserting the LP orifice as per the applicable Propane conversion instructions. See Figure 9-1 for throttle screw location.

Tft300-399 Adjustments - The throttle screw for the Tft300-399 is a geared valve with a 4:1 ratio. Adjusting the throttle screw 4 complete turns will return the valve to the original location, 2 turns from fully open will completely close the valve. Typical adjustment required is 0-1/4 turn in or out from the factory setting. See

Figure 9-2 for throttle screw location.

Combustion Calibration - To calibrate burner operation, perform the following procedure using a calibrated combustion analyzer capable of measuring CO

2

and CO from Natural and Propane Gas burning boilers:

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 CO

2

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

CO

2

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 Tft is factory set to operate with Natural Gas, for boilers 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 – Perform flue gas analysis, and adjust throttle/input screw as required until CO

2

and CO levels are within acceptable limits.

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Figure 9-1 Tft60-250 Gas Valve and Venturi Assembly


Gas Valve

Tft Series

DO NOT Remove

Cap

Manifold Pressure

Test Port

Venturi

Line Pressure

Test Port

Throttle / Input

Adjustment Screw

Figure 9-2 Tft300-399 Gas Valve and Venturi Assembly

Manifold Pressure

Test Port

Throttle / Input

Adjustment Screw

Line Pressure

Test Port

Gas Valve

DO NOT

Remove Cap

Venturi

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10.0 BOILER AND HEATING SYSTEM PIPING

The fire tube design of the Trinity Tft heat exchanger results in minimal head loss, however it must be considered when sizing system piping and circulators. Furthermore, the low mass of the Tft heat exchanger requires a minimum flow rate anytime the burner is operating. To maintain the efficient and reliable operation of the heat exchanger, and to avoid heat exchanger failure, it is critical to ensure the rules and guidelines in this section are followed.

Failure to follow the instructions provided in this section will void the NTI warranty and may result in property damage, fire, serious injury or death.

Boiler System Preparation

Prior to connecting plumbing to the boiler, flush the entire system to ensure it is free of sediment, flux, solder, scale, debris or other impurities that may be harmful to the system and boiler. During the assembly of the heating system, it is important to keep the inside of the piping free of any debris including construction and copper dust, sand and dirt.

For retrofits, all system piping, including radiators, must be cleansed of build-up including sludge and scale. All systems, old and new, must be cleansed to remove flux, grease and carbon residue; NTI recommends cleaning the boiler system with “Fernox F3 Cleaner”. For retrofit applications with heavy limescale and sludge deposits, a heavier duty cleaner may be required; NTI recommends the use of “Fernox DS-40 System Cleaner”. For information on performing the cleaning, follow the instructions included with the applicable Fernox Cleaner. See

Table 10-1 for a list of recommended boiler system cleaning and treatment products.

Failure to rid the heating system of the contaminants listed above will void your NTI warranty and may result in premature heat exchanger failure and property damage.

Table 10-1 Boiler System Cleansers and Corrosion Inhibitors

Application

Fernox Product NTI Part # Description

Boiler Water Treatment F1 Protector

Cleanser for new and old systems F3 Cleaner

83448

83449

DS-40 System Cleaner 83450 Cleanser for Retrofits

Boiler Water

Corrosion inhibitor.

Removes flux, grease and carbon residue.

Removes heavy limescale and sludge deposits.

Pressure - Trinity boilers are intended solely for use in pressurized closed-loop heating systems operating with a minimum pressure of 15 PSI at the boiler outlet. To obtain the minimum system design pressure, follow the piping diagrams illustrated in this section.

Oxygen Elimination - This boiler may only be installed in a pressurized closed-loop heating system, free of air and other impurities. To avoid the presence of oxygen, ensure all of the air is removed from the system during commissioning via strategically placed, adequately sized air-removal devices; located throughout the heating system. See figures in this section detailing the location of the primary air-removal device required for the boiler. Immediately repair any leaks in the system plumbing to avoid the addition of make-up water; make-up water provides a source of oxygen and minerals that may lead to heat exchanger failure. Failure to follow these instructions will result in poor performance, unnecessary wear of system components and premature failure.

The Trinity Tft is not approved for operation in an “open system”, thus it cannot be used for direct potable water heating or process heating of any kind.

Water Chemistry – The installer of the Trinity Tft boiler must consider the condition of the water in the heating system. Ensure the condition of the boiler water falls within the following parameters:



PH – between 6.6 and 8.5.



Chloride – less than 125mg/l.





Iron – less than 0.5mg/l.

Copper – less than 0.1mg/l.



Conductivity – less than 400µS/cm (at 25ºC); [TDS < 200ppm or Total Hardness < 11.6grains/USgal.]

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Treatment - Boiler water that falls outside of the conditions listed above must be treated with a corrosion inhibitor. For information on performing the treatment, follow the instructions included with the corrosion inhibitor. See Table 10-1 for a list of recommended boiler system cleaners and corrosion inhibitors.

To maintain protection, the level of corrosion inhibitor must be monitored periodically for the correct concentration.

Anti-freeze - For systems requiring freeze protection, use only inhibited propylene glycol, specially formulated for hydronic heating systems; use of other types of antifreeze may be harmful to the system and will void the warranty. Note: the use of glycol may reduce the usable output capacity of the boiler, thus requiring the unit to be “down-fired” by limiting the maximum operating capacity and/or the maximum water temperature.

NTI recommends against exceeding 35% concentration of glycol.

DO NOT use inhibited glycol with non-compatible boiler inhibitors. Non-compatible inhibitors may counteract each other rendering them ineffective.

Near Boiler Plumbing

Pressure Relief Valve - A Pressure Relief Valve is factory supplied with each unit. Trinity Tft boilers have a maximum allowable operating pressure of 30PSI (80PSI for models Tft155-399). The pressure relief valve must be installed at the boiler outlet and in the vertical position, as shown in Figures 10-1 through 10-3, with the drain pipe outlet exiting the side of the pressure relief valve horizontally and elbowing downward.

If installed in the incorrect orientation (horizontally with drain pipe out the bottom) the relief valve may not function properly resulting in property damage or personal injury.

Ensure the discharge of the pressure relief is piped to a location where the steam or water will not cause property damage or serious injury.

Pressure Gauge – Trinity Tft units come with a factory supplied Pressure Gauge. The pressure gauge must be installed at the boiler outlet prior to any circulators. See Figures 10-1 through 10-3.

Auto Air Vent – Install the factory supplied auto air vent directly above the outlet fitting on the top of the unit; see Figures 10-1 through 10-3 illustrating the correct location. Failure to install the auto air vent as illustrated may result in occasional malfunctioning of the incorporated LWCO.

Low Water Cutoff (LWCO) – Trinity Tft boilers are provided with a factory installed LWCO switch which incorporates a Test Button and Power and Low Water indicator lights. Perform the following Operational

Test Procedure before placing the boiler in service, and ensure Maintenance is carried out with the following schedule.

Do not run the boiler unattended until the following procedure is completed. Failure to follow procedure may lead to unsafe boiler operation resulting in fire, property damage and loss of life.

Operational Test Procedure (LWCO)

1. Before introducing water to the boiler, turn the power on; both the green “POWER” LED and amber “LOW

WATER” LED should illuminate. Generate a burner demand; the burner should not fire and “Lockout 67

ILK OFF” should appear on the screen. Contact NTI for assistance if this does not happen.

2. Fill the boiler with water; the “LOW WATER” LED should turn off. Clear the Lockout from the display board; burner should fire.

3. With the burner firing, press the TEST button to simulate a low water condition; the amber “LOW WATER”

LED should illuminate and the burner should turn off.

Maintenance (LWCO)



Every Year – perform Step 3 from the Operational Test Procedure.



Every 5-years – Remove the LWCO and clean all surfaces in contact with water.

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Near Boiler Piping (Tft60-110)

Figure 10-1(a)

Supply/Return Bottom (Tft60-110)

Figure 10-1(b)

Supply/Return Top (Tft60-110)

Auto Air-Vent

Auto Air-Vent

Pressure Relief

Valve

Inlet

Pressure Relief

Valve

Outlet

Pressure Gauge

Pressure Gauge

Outlet

Inlet

Pressure Relief

Valve (alternate location)

Pressure Relief


Figure 10-1(c)

Supply Top / Return Bottom (Tft60-110)

Auto Air-Vent

Pressure Relief

Valve

Inlet

Figure 10-1(d)

Supply Bottom / Return Top (Tft60-110)

Auto Air-Vent

Pressure Relief

Valve

Outlet

Pressure Gauge

Pressure Relief


Pressure Relief


Pressure Gauge

Outlet

I nlet

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Figure 10-2(a)


Auto Air-Vent

Pressure Relief

Valve

Tft Series

Figure 10-2(b)


Inlet

Auto Air-Vent

Pressure Relief

Valve

Pressure Gauge

Outlet

Inlet

Pressure Relief


Pressure Gauge

Outlet

Pressure Relief


Figure 10-2(c)


Auto Air-Vent

Pressure Relief Valve

Pressure Gauge

Outlet

Figure 10-2(d)


Inlet

Auto Air-Vent


Inlet

Pressure Relief



(alternate location)

Pressure Gauge

Outlet

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Figure 10-3(a)


Figure 10-3(b)


Auto Air-Vent

Auto Air-Vent

Inlet

Pressure Relief

Valve

Pressure Relief

Valve

Pressure Gauge

Outlet

Inlet

Outlet

Pressure Gauge

Pressure Relief


Figure 10-3(c)


Auto Air-Vent


Pressure Gauge

Pressure Relief


Figure 10-3(d)


Inlet

Auto Air-Vent

Pressure Relief

Valve

Outlet

Pressure Relief


Inlet

Pressure Gauge

Outlet

Pressure Relief


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Boiler System Plumbing

Tft Series



The Trinity Tft boiler uses a low mass heat exchanger that requires a minimum rate of forced water circulation any time the burner is operating (See Table 10-2 for minimum flow rate requirements). To ensure the minimum flow rate is attained, NTI strongly recommends installing the boiler in a “Primary/Secondary” plumbing configuration utilizing “Closely Spaced Tees” or a “Low Loss Header” to de-couple the Boiler-Primary loop from the System-Secondary loop(s). See the examples of Primary/Secondary Loop configurations in Figures 10-

5 and 10-6.

Table 10-2 Minimum Flow Rate Requirements

Model Flow (US gpm) Model Flow (US gpm)

Tft60 3 Tft155-250 7.5

Tft85-110 3.5 Tft300-399 12

System Components – As a minimum, a properly installed system will include the following major components identified in Table 10-3.

Table 10-3 System Major Component Checklist

Factory Supplied Field Supplied Components

 Pressure Gauge

 Auto Air Vent





 Boiler Loop Circulator (Pump B in Figure 10-5 or Pump C in Figure 10-6)

 DHW Loop Circulator (Pump A in Figure 10-5 and Figure 10-6, for applications utilizing and Indirect Fired Water Heater)



(CH Circulator - Pump C in Figure 10-5; Zone Circulators in Figure 10-6)

 Central Air Removal Devices (i.e. Micro Bubbler or Air-Scoop)

 Pressure Regulating “Fill Valve”

 Backflow Preventer

 Expansion Tank

Circulating Pumps – Trinity Tft boilers are equipped with three 120VAC pump outputs:

1. PUMP A

“DHW Pump” - operates during a Domestic Hot Water demand (DHW).

2. PUMP B

“Boiler Pump” - operates during any demand.

3. PUMP C

“CH Pump”

- operates during a Central Heat/Thermostat demand (THERMOSTAT).

Ensure pumps are oriented as per the manufacturers’ instructions. Wiring of these circulators will depend on the system configuration selected; see Figures 10-5 and 10-6. For further wiring details see Section 12.0.

Circulators responsible for forcing the water flow through the boiler must be sized according to Table 10-4. Pump recommendations are based on a Primary/Secondary plumbing configuration (see Figures 10-5 and 10-6) using the listed pipe size in the

Boiler-Primary Loop, with up to 50 equivalent feet of pipe length. The installer is responsible for sizing the boiler circulator(s) and piping for applications using non

Primary/Secondary plumbing; Figure 10-4 provides Head Loss curves for this purpose.

Failure to ensure the minimum water flow rate through the boiler when the burner is operating will result in “short-cycling”, reduced performance and operating efficiency, and may also cause overheating and premature failure which will void the warranty.

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

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Table 10-4 Circulator and Pipe Size Requirements

Model

Temp.

Rise (ºF)

Boiler Flow

Rate (GPM)

Boiler Head

Loss (ft)

Tft60

Tft85

Tft110

20

25

35

20

25

35

20

25

35

6

4

3

8

6

4

10

8

6

2.7

1.6

1.0

3.4

2.7

1.6

3.9

3.4

2.7

Minimum

Pipe Size

1”

¾”

¾”

1”

1”

¾”

1”

2

1”

1”

Tft155

20

25

35

14

11

8

5.3

3.9

3.1

Minimum Primary Loop Pump Size

(1)

B&G

NRF-9

NRF-22

NRF-22

NRF-22

Grundfos

NRF-22 UPS15-58 (2)

NRF-22 UPS15-58 (1)

UPS15-58 (1)

UPS15-58 (2)

UPS15-58 (2)

UPS15-58 (2)

1-1/4” NRF-25 (3) UPS26-99 (2)

1-1/4”

1”

NRF-22 UPS15-58 (3)

NRF-22 UPS15-58 (2)

Taco

005

005

005

007

NRF-22 UPS15-58 (2) 005

NRF-22 UPS15-58 (1) 005

NRF-22

(2)

UPS15-58 (3) 007

2

007

005

0011

007

007

Armstrong

Astro 30 (2)

Astro 30 (2)

Astro 30 (1)

Astro 30 (3)

Astro 30 (2)

Astro 30 (2)

Astro 30 (3)

(2)

Astro 30 (3)

Astro 30 (2)

E7

Astro 30 (3)

Astro 30 (3)

Tft175

Tft200

20

25

35

20

25

35

16

13

9

18

15

11

6.6

4.7

3.4

7.5

5.8

3.9

1-1/2” NRF-36 (2) UPS26-99 (2)

1-1/4” NRF-25 (3) UPS26-99 (2)

1”

NRF-22 UPS15-58 (3)

1-1/2” NRF-36 (2) UPS26-99 (2)

1-1/4” NRF-36 (2) UPS26-99 (2)

1-1/4” NRF-22 UPS15-58 (3)

0011

0010

007

0011

0011

007

E7

E7

Astro 30 (3)

E7

E7

Astro 30 (3)

Tft250

20

25

23

18

11.3

7.5

1-1/2” NRF-36 (3) UPS26-99 (3)

1-1/2” NRF-36 (2) UPS26-99 (2)

0013

0011

E8

E7

35

20

13

28

4.7

5.4

1-1/4” NRF-25 (3) UPS26-99 (2)

2”

NRF-36 (3) UPS26-99 (3)

1-1/2” NRF-36 (2) UPS26-99 (3)

0010

0012

E7

E8

Tft300

Tft399

25

35

20

25

22

16

37

29

4

3.1

8.2

5.7

0011

1-1/2” NRF-25 (3) UPS26-99 (2)

2”

2”

PL55

NRF-36 (3)

UPS26-150 (3) 2400-30

UPS26-99 (3)

0010

0012

E7

E7

E11

E8

35 21 3.9 1-1/2” NRF-36 (2) UPS26-99 (2) 0011 E7

Notes:

1

Pump sizing based on Primary/Secondary plumbing configuration with specified minimum pipe diameter with up to 50’ equivalent length.

2

Upsize piping to 1-1/4” if using Taco 007, Armstrong Astro 30 or B&G NRF-22; alternatively upsize circulator to 0010,

Astro 50 or NRF-25.

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10

8

6

4

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Figure 10-4(a) Tft60-110 Head Loss Curve

6

3

2

1

0

5

4

2 4 6 8

Flow Rate (US gpm)

Figure 10-4(b) Tft155-250 Head Loss Curve

6 8 10 12 14 16


18

Figure 10-4(c) Tft300-399 Head Loss Curve

10

8

10

20 22

12

Tft Series

24

42

2

0

6

4

10 12 14 16 18 20 22 24 26


28 30 32 34 36 38


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Air Removal – The boiler and system plumbing layout must be configured to promote the removal of air from the water. Air vents and bleeders must be strategically placed throughout the system to aid in purging the air from the system during commissioning of the boiler. The system must also employ the use of a strategically located air removal device, such as an air scoop or micro-bubbler, designed to remove the air from the water as it flows through the system.

Follow the installation instructions included with the air removal device when placing it in the system; air removal devices generally work better when placed higher in the system. Always locate air removal devices in areas of the system that have a guaranteed positive pressure, e.g., in close proximity to the water fill and expansion tank.

Trinity boilers are supplied with an automatic air removal device to aid in the purging of air from the boiler during the initial fill. Place this devise in the location indicated in

Figures 10-1 through 10-3.

Expansion Tank – The expansion tank must be sized in accordance with the water volume of the system as well as the firing rate of the appliance. It is important to locate the expansion tank, and make-up water fill, on the inlet side of any circulator in the system, as doing so will guarantee the lowest pressure in the system will be at least equal to the tank and make-up water pressure. See examples in Figures 10-5 and 10-6.

Ensure the expansion tank cannot become isolated from the boiler anytime the system is operating. Failure to follow these instructions may result in discharge of the Pressure

Relief Valve may result in property damage or personal injury.

The installation of flow checks, motorized valves or other shutoff devices (other than for the purpose of servicing) are not permitted between the location of the "Closely Spaced

Tees" and the expansion tank; see Figures 10-5 and 10-6.

Indirect Fired Water Heater – When installed as per Figure 10-6, the indirect fired water heater is in series with the boiler during a demand for DHW. Therefore, its head loss, along with the head loss of the boiler and associated piping, must be considered when sizing the circulator.

Figure 10-5: Single System Circulator Configuration - Often used in applications zoned with “Zone Valves”.

During a demand for central heat, the boiler energizes the System Circulator via the Central Heating (CH) pump output (PUMP C). The System Circulator must be sized to provide adequate circulation throughout the heating system. During a Domestic Hot Water (DHW) demand, the boiler de-energizes the System

Circulator (PUMP C) and energizes the DHW Circulator (Pump A). With this configuration the Boiler

Circulator is the only pump that causes flow through the boiler and it is powered during any demand via the boiler pump output (PUMP B). This circulator must be sized according to Table 10-4.

The piping configuration described above requires the Central Heating system and DHW system to be de-coupled from the “Primary Loop” via closely spaced tees (Figure 10-5).

Figure 10-6: Multiple System Circulator Configuration - Often used in applications with “Zone Circulators”.

This configuration requires the installation of a check valve located at each circulator. During a central heating demand the boiler energizes the Central Heat Circulator via the Central Heat pump output (PUMP C).

During a Domestic Hot Water (DHW) demand, the boiler de-energizes PUMP C and energizes the DHW

Circulator (Pump A). Both Pump A and C, used in this configuration, are responsible for water flow through the boiler and must be sized according to Table 10-4. Pump output, PUMP B is not used in this configuration.

Figures 10-5 and 10-6 illustrate typical piping systems. These piping schematics do not illustrate all of the required concepts and components required to have a proper installation. Concepts not shown include: prevention of thermal-siphoning (heat traps), isolation valves, drain and purge valves, etc. It is the responsibility of the installing contractor and system designer to determine which system best meets the need of the installation and to consider all aspects of a proper system design. Contractor modifications to these instructions may be required, based upon existing piping and system design.

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Figure 10-5 Primary/Secondary Plumbing

(Single System Circulator Configuration)

Water connection locations will vary between boiler models; refer to Figures 10-1 to 10-3.

Tft Series

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Figure 10-6 Primary/Secondary Plumbing

(Multiple System Circulator Configuration)


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11.0 LEAD LAG INSTRUCTIONS

Tft Series

Multiple Boiler Applications

The Tft controller has the internal capacity to stage or Lead-Lag up to 8 boilers configured in a cascade. This

Lead-Lag capability allows a designated “Master” boiler to communicate with and effectively control each boiler in a multiple boiler system. This function is accomplished by “Daisy Chaining” a 3-wire cable between each of the boilers and enabling the Master parameter in the boiler of your choice. The boiler with the Master parameter enabled becomes the single point of contact for Central Heating, Domestic Hot Water and Outdoor

Reset settings and control wiring. Use the instructions detailed in this section to set-up and install the cascade boiler system; reference Appendix A – Controller and Touchscreen Display Instructions for details on more advanced settings and for assistance with navigating the touchscreen display.

Figure 11-1 Multiple Boiler Lead-Lag Plumbing Configuration


Master Boiler

Tft399 Models Illustrated

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Lead Lag Instructions - Common

Plumbing – install as many as 8 Tft boilers in parallel in a primary/secondary plumbing configuration as illustrated in Figure 11-1. Size common piping as per Table 11-1.

Boiler Pump – each boiler must have its own circulator (see Figure 11-1) which is controlled by its PUMP B output; see Field Wiring Figure 12-1 and Table 12-1. The Boiler Pump must be sized according to Table 10-4.

Communication Wiring – using 3-wire cable, daisy-chain terminals DATA +, DATA – and DATA COM of each boiler in parallel; see Field Wiring Table 12-2a and Figure 12-2.

System Sensor (Optional) – install a system sensor (NTI P/N: 84010) on the outlet (supply) pipe feeding the heating system, see Figure 11-1. Wire the system sensor to SENSOR COM and SYSTEM of the Master

Boiler; see Field Wiring Table 12-2a and Figure 12-2. The system sensor automatically becomes the modulation sensor for the boiler system, i.e. the control attempts to achieve setpoint temperature at the location of the sensor. If a system sensor is NOT used, at the Master boiler set the applicable sensor input to

Unconfigured as follows:

Configure

– Sensor Configuration – S10 (J10-7) sensor

Outdoor Sensor (Optional) – wire the outdoor sensor to SENSOR COM and OUTDOOR of any one of the boilers in the cascade; see Field Wiring Table 12-2a and Figure 12-2. Note: only one outdoor sensor is needed for the multiple boiler system.

Modbus Address – assign a unique MB2 Modbus Address to each boiler in the cascade. Access the MB2

Modbus Address setting via the System Identification & Access menu as follows:

Configure

– System Identification & Access – MB2 Modbus Address

Master Enable – choose one (and only one) boiler in the cascade to be the Master, this boiler will receive all control wiring and will be used for setting control parameters (see steps below). On this one boiler, set

Master enable equal to Enabled via the Lead Lag Master Configuration menu, accessed as follows:

Configure

– Lead Lag Master Configuration – Master enable

Table 11-1 Minimum Pipe Sizes for Multiple Boiler Applications

# of

Units

2

3

4

5

6

7

8

Tft60 Tft85 Tft110 Tft155 Tft175 Tft200 Tft250 Tft300 Tft399

Pipe Size Pipe Size Pipe Size Pipe Size Pipe Size Pipe Size Pipe Size Pipe Size Pipe Size

1”

1-1/4”

1-1/2”

1-1/2”

2”

2”

2”

1-1/4”

1-1/2”

2”

2”

2”

2-1/2”

2-1/2”

1-1/2”

2”

2”

2-1/2”

2-1/2”

2-1/2”

3”

1-1/2”

2”

2-1/2”

2-1/2”

3”

3”

3”

2”

2”

2-1/2”

3”

3”

4”

4”

2”

2-1/2”

2-1/2”

3”

4”

4”

4”

2”

2-1/2”

3”

4”

4”

4”

4”

2-1/2”

3”

3”

4”

4”

4”

5”

2-1/2”

3”

3”

4”

5”

5”

5”

Note: Minimum pipe size based on assumed temperature rise of 25ºF at maximum firing rate.

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Lead Lag Instructions

– Central Heating

Tft Series

Central Heat Demand Switch (Room Thermostat) – connect to R (24VAC) and CH2 (LL) of the Master

Boiler; see Field Wiring Table 12-2b and Figure 12-2. Switch must be an isolated end switch (dry contact).

Central Heat Setpoint – at the Master boiler only, set the CH setpoint via the Lead Lag Master Configuration menu, accessed as follows:

Configure

– Lead Lag Master Configuration – CH setpoint

Outdoor Reset Settings – at the Master boiler only, set the Outdoor reset parameters via the Lead Lag Master

Configuration menu, accessed as follows:

Configure

– Lead Lag Master Configuration – Advanced Settings – Outdoor reset

CH Pump – one boiler in the cascade can be chosen to operate the Central Heating pump via its PUMP C output; see Field Wiring Figure 12-1 and Table 12-1. From the respective boiler display, check the box next to Use for Lead Lag Master demands for the CH Pump to ensure proper pump behavior. Menu access to the

CH Pump parameters is as follows:

Configure

– Pump Configuration – Central Heat pump – Use for Lead Lag Master demands

Lead Lag Instructions

– Domestic Hot Water

Tank Thermostat – connect to SENSOR COM and DHW of the Master Boiler; see Field Wiring Table 12-2a and Figure 12-2. Switch must be an isolated end switch (dry contact).

DHW Setpoint – at the Master boiler only, set the DHW setpoint via the Lead Lag Master Configuration menu, accessed as follows:

Configure

– Lead Lag Master Configuration – DHW setpoint

DHW switch (Lead Lag) – at the Master boiler only, set DHW switch equal to DHW (S6) sensor shorted via the

Lead Lag Master Configuration menu, accessed as follows:

Configure

– Lead Lag Master Configuration – Advanced Settings – Domestic Hot Water – DHW switch

DHW enable (Local) – at the Master boiler only, set DHW enable equal to Disabled via the Domestic Hot

Water Configuration menu, accessed as follows:

Configure

– Domestic Hot Water Configuration – DHW enable

DHW Pump – one boiler in the cascade can be chosen to operate the DHW pump via its PUMP A output; see

Field Wiring Table 12-2b and Figure 12-2. From the respective boiler display, check the box next to Use for

Lead Lag Master demands for the DHW Pump to ensure proper pump behavior. Menu access to the DHW

Pump parameters is as follows:

Configure

– Pump Configuration – DHW pump – Use for Lead Lag Master demands

Tank Sensor – when operating in a cascade system, the boiler controls do not support the use of a tank sensor; a tank thermostat (switch) must be used.

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12.0 FIELD WIRING

All wiring must be in accordance with the Canadian Electrical code, CSA C22.2 and any applicable local codes.

Ensure that the wiring complies with this manual. The boiler must be electrically grounded in accordance with the National Electrical Code ANSI/NFPA 70, local codes, and/or the Canadian Electrical Code CSA C22.1.

Avoid Shocks - To Avoid Electrical Shock, turn off electrical power to the boiler prior to opening any electrical box within the unit. Ensure the power remains off while any wiring connections are being made. Failure to follow these instructions may result in component failure, serious injury or death.

Field Wiring - Wire grommets must be used to secure wiring and prevent chafing when passing wiring through the cabinet wall. Failure to follow instructions may damage unit.

Line Voltage Connections

Electrical rating for the Trinity Tft is 120V / 1 Phase / 60 Hz / 12A. All line voltage wiring connections to the

Trinity Tft are made at the junction box in the control panel located at the bottom of the boiler cabinet. The connections are accessed by removing the front door of the boiler, followed by the removal of the control panel cover. Field connections are to be installed in accordance with Figure 12-1 and Table 12-1. Holes are located on the bottom (underside) of the control panel junction box.

Fuses (120VAC) – The Trinity Tft is equipped with two 7 Amp fuses to protect 120VAC system components.

The fast-acting fuses are located on the left side of the control panel and are easily accessed upon removal of the front cover of the boiler cabinet.



Fuse A: Protects the blower, spark generator and PUMP B output circuits.



Fuse B: Protects PUMP A and PUMP C output circuits.

Wire Protection - When passing any wiring through the cabinet of the boiler, the installer must use wire grommets suitable for securing the wiring and preventing chafing.

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

Power Supply - The Trinity Tft is designed to be powered using a single phase 120VAC power supply that is fused (or protected via a circuit breaker) to allow a maximum of 15

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

Labeling - Label all wires prior to disconnecting them when servicing controls. Wiring errors can cause improper and dangerous operation. Failure to follow instructions may result in property damage or personal injury.

Continuity - Before connecting the line voltage wiring, perform a continuity check between all wires and ground to make sure that there are no electrical leaks that could blow a fuse or damage electrical components. Also check the polarity of the line and neutral wires. Line must measure 120VAC to ground; neutral must measure zero.

Failure to follow instructions may damage the unit.

Max Load - Circulator outputs (PUMP A, B, C) are each limited to operating a circulator with a maximum current load of 3 Amps or a maximum 1/6 hp motor. See

Table 12-1.

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Figure 12-1 Line Voltage Field Wiring

Tft Series

Table 12-1 Line Voltage Field Connections

Connection Location

L1

(120VAC)

1

Description

Location for connecting line voltage of the power supply. Note; most installation codes require the installation of a service switch to break line voltage to the appliance.

PUMP A 2 120VAC output to the DHW circulator; powered during a demand for DHW.

PUMP B

PUMP C

3

4

120VAC output to the Boiler circulator; powered during all demands; DHW, local Central

Heat (CH1) and Lead-Lag Central Heat [CH2 (LL)]. This output is not used for all plumbing configurations, see Section 10.0.

120VAC output to the Central Heating circulator; powered during a demand for local

Central Heat (CH1) or Lead-Lag Central Heat [CH2 (LL)].

5

L2

(Neutral)

6

Location for connecting neutral of the power supply and all circulators.

7

Ground Location for connecting earth ground and for grounding all of the circulators.

8

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Low Voltage Connections

Like the line voltage, the low voltage wiring connections to the Trinity Tft are made at the junction box in the control panel located at the bottom of the boiler cabinet. The connections are accessed by removing the front door of the boiler, followed by the removal of the control panel cover. Field connections are to be installed in accordance with Figure 12-2 and Tables 12-2a and 12-2b. Holes are located on the bottom (underside) of the control panel junction box.

Fuse (24VAC) - Trinity Tft models are equipped with a “blade style” 2 Amp fuse to protect the internal transformer located within the control panel box.

Table 12-2a Low Voltage Field Connections (Communication and Sensor I/O)


DATA +

DATA -

DATA COM

1

2

3

Description

Lead-Lag

–

Terminals 1, 2 and 3 can be "daisy-chained" to multiple boilers (up to 8 in total) for the purpose of staging.

For lone boiler applications, these terminals can be alternatively used for communication to an external device (i.e. Building Automation System, BAS)

4-20mA (+)

4-20mA (-)

COM

4

5

6

External Modulation Control – Using a 4-20mA signal connected to terminals 4 and 5, an external control can be used to directly modulate the burner firing rate or adjust the active set point. This can be useful for applications using external staging controls or

Building Automation Systems.

Sensor Common

–

Common port for field inputs SYSTEM, OUTDOOR and DHW.

SYSTEM

OUTDOOR

DHW

7

8

9

System Water Temperature

–

An optional strap-on System Sensor is available from

NTI (P/N 84010). When connected to terminals 6 and 7, the control will indicate a “CH” or “Lead-Lag” temperature. Sensor can be used for direct modulation of system temperature.

Outdoor Temperature Sensor

–

A wall mountable OD Sensor is included with each boiler. When connected to terminals 6 and 8, the control will indicate the outdoor temperature and Outdoor Reset function will be operable.

DHW Tank Demand

–

Input requiring closure of terminals 6 and 9 to initiate a demand for DHW. Switch made via isolated end switch (dry contact) from a thermostat

(aquastat) located in an Indirect Fired Water Heater. Or optional DHW Tank Sensor

(NTI P/N 84632), see Appendix A for details.

Table 12-2b Low Voltage Field Connections (24VAC I/O)


COM

(24VAC)

1

Description

24VAC Common – Neutral for the 24VAC power supply from the boiler. COM can be used in conjunction with terminal R to provide a power source for a digital thermostat.

2

R

(24VAC)

3

24VAC Hot - Power supply for inputs LIM, CH1 and CH2 (LL).

LIM

CH1

CH2 (LL)

4

5

6

External Limit – Input requiring 24VAC from terminal R to permit the burner to operate.

Comes factory equipped with a jumper to the R terminal. For installations requiring the use of an additional safety switch, such as a Flow Switch, or auxiliary temperature limit, remove the factory installed jumper and install the normally open isolated contacts of the additional limit in its place.

Local Central Heat Demand

– Input requiring 24VAC from terminal R to initiate a

“local” CH call. Switch is made using an isolated end switch (dry contact) via thermostat, zone controller or other device. Typically used as the lone heat input or as the high temperature input in dual CH temperature systems.

Lead-Lag Central Heat Demand

–

Input requiring 24VAC from terminal R to initiate a

“lead-lag” CH call. Switch is made using an isolated end switch (dry contact) via thermostat, zone controller or other device. Typically used as a lead-lag input for cascaded boilers or as the low temperature input in dual CH temperature systems.

7

ALARM

8

Normally Open Alarm Contacts – Contacts close during a lockout or other alarm condition. May be connected to a BMS, maximum capacity of 0.63Amps at 24VAC.

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Low Voltage Terminals

– “R” terminals 2 and 3 of the 24VAC I/O barrier has 24VAC potential from the internal transformer. Do not connect power from this terminal to any other terminal other than terminals 4, 5 and 6 (LIM, CH1 and CH2 (LL)). Failure to follow these instructions may damage the unit.

The low voltage connections are divided into two separate barrier strips: Communication and Sensor I/O (Input/Output) and 24VAC I/O. DO NOT connect 24VAC (or other power supply) to the Communication and Sensor I/O connections; doing so will cause control failure.

Figure 12-2 Low Voltage Field Wiring

Communication and Sensor I/O

24VAC I/O

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Modbus Communication Connections

The Trinity Tft uses Modbus for communicating data to and from the boiler controller. Effectively the boiler incorporates three (3) Modbus communication ports:

1. Controller MB1 to Display COM1 – provides communication of all data between the boiler controller and the user interface (touch-screen display). Controller communication port “MB1” is factory wired to communication port “COM1” of the touch-screen display.

2. Controller MB2 to Field Terminals (see Table 12-2a; Locations 1-3) – allows for communication between boilers for the purpose of staging/cascading; as many as 8 boilers can be “daisy-chained” together.

For lone boiler applications, this port can be alternatively used for communication to an external device (i.e.

Building Automation System, BAS). Controller communication port “MB2” is factory wired to Low

Voltage field connections DATA (+), DATA (-), and DATA COM (see Figure 12-2).

3. Display COM2 – the new Tft touch-screen display provides a spare Modbus communication port; the extra port allows for dedicated communication to an external device (i.e. Building Automation System, BAS).

Display communication port “COM2” is accessed from the rear of the touch-screen display, see Figure 12-3 for wiring instructions. See Figure 16-3 for instructions on accessing the rear of the touch-screen display.

Figure 12-3 COM2 Modbus Wiring (Rear of Display)

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13.0 WIRING SCHEMATICS

Figure 13-1 Tft Connection Diagram

Tft Series

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Figure 13-2 Tft Ladder/Logic Diagram

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14.0 INSTALLATION CHECKLIST

Installation

 1. If operating on Propane Gas, convert boiler using appropriate Kit number. See Table 7-1.

 2. Locate the boiler in accordance with Section 3.0 of this manual.

 3. Install the Vent/Air-inlet 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-inlet pipes must terminate outdoors.

Perform the Mandatory Pre-commissioning Procedure for Plastic Venting in Section 4.0.

 4. Connect the condensate trap and 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 this manual; Flush/cleanse the internals of the heating system.

Treat system water with Fernox F1 Protector when needed.

 7. Connect field wiring in accordance with Section 12.0 of this manual.

 8. Advise home/building owner of their responsibilities with respect to maintaining the boiler.

The building owner is responsible for keeping the Vent/Air-inlet termination free of snow, ice, or other potential blockages and for scheduling boiler routine maintenance as described in the next section. Failure to properly maintain the boiler 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 the boiler.

 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 boiler 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 boiler 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 boiler 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.

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15.0 ANNUAL MAINTENANCE AND INSPECTION

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

Annual Inspection Checklist

 1. Lighting is smooth and consistent, and the combustion fan is noise & vibration free.

 2. The condensate drain freely flows, and is cleaned of sediment.

 3. Relief Valve and air vents are not weeping.

 4. Low water cut off is tested (remove and clean a minimum of once every 5 years, see Section 10.0)

 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 if necessary cleaned.

 8. Keep boiler area clear and free from combustible materials, gasoline, and other flammable vapors and liquids.

 9. Ensure there is nothing obstructing the flow of combustion and ventilation air.

 10. Listen for water flow noises indicating a drop in boiler water flow rate.

Important - The hydronic system may need to be flushed to eliminate hard water scale

(Use Fernox DS-40 Descaler, NTI PN: 83450).

 11. Verify proper operation after servicing.

Wiring Labels - Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

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

Combustion Chamber Cleaning Procedure

NTI recommends having the combustion chamber cleaned after the first year of operation, with subsequent cleanings scheduled based on the condition of the combustion chamber at the time. Units operating with LP Gas or in an industrial environment may require more frequent cleanings.

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. Remove the demand for heat, allow the post-purge cycle to finish, turn gas and power supply off.

 2. Working inside the cabinet, disconnect the cabling to the combustion blower, gas valve, spark igniter and flame sensor, then remove the air-inlet piping and Gas Valve/Venturi assembly (gas line is disconnected at the factory supplied union fitting).

 3. Once the combustion chamber has cooled, remove the combustion blower followed by the burner plate – be careful not to damage the insulation disc located underneath the burner plate.

 4. Use a vacuum with a high efficiency filter to remove any loose debris or dust.

 5. Remove the condensate trap from the bottom of the boiler and place a drain under the boiler condensate drain.

 6. Wet the inside of the combustion chamber with warm water (do not use any chemicals). Use a garden hose with a trigger nozzle to direct pressurized water through the heat exchanger tubes; the water will exit via the condensate drain on the bottom. Continue process until the tubes are clear and the water runs clean. Use dry rags or plastic to protect electrical components from being damaged by dripping or spraying water.

 7. Disassemble the condensate trap and thoroughly clean it; then reassemble and securely connect it to the boiler condensate drain, see Section 6.0.

 8. Remove the burner from the burner plate; clean if necessary using compressed air. Reattach the burner; ensure the gasket is in perfect condition and is reinstalled (replace if necessary).

 9. Inspect the insulation disc located on the under-side of the burner plate. Replace if damaged.

 10. Re-install the burner plate; be sure the insulation disc is properly aligned. Reinstall remaining components in the opposite order they were removed.

 11. Perform the Start-up and Operational Checklist detailed in the previous section.

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.

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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 plate contains Refractory

Ceramic Fibers and should not be handled without personal protective equipment.

Potential Carcinogen - Use of Refractory Ceramic Fibers in high temperature applications (above 1000 o

C) 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 15-1 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 15-1 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 boiler. This boiler contains materials that have been identified as carcinogenic, or possibly carcinogenic, to humans).

Table 15-1 Handling Instructions for Refractory Ceramic Fibers (RCF)

Reduce the Risk of Exposure Precautions and Recommended Personal Protective Equipment

Avoid contact with skin and eyes



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

Avoid breathing in silica dust

Avoid transferring contamination



Wear a respirator with an 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.



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:

1

R espirator 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.

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16.0 TROUBLESHOOTING

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

Servicing the Boiler

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



Disconnect or shutoff all energy sources to the boiler: 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 boiler is suspected. The boiler incorporates a sophisticated microprocessor based control which normally responds appropriately to varying conditions. If the boiler 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 Boiler

First, verify the following:



There is 120V being supplied to the boiler: o

The circuit breaker in the electrical panel supplying power to the boiler is not tripped. o

The service switch (if applicable) is in the ON position. o

The boiler service switch located on the front of the boiler is in the ON (1) 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 boiler.

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



Remove the boiler front cover (remove screw from bottom, undo side latches, then lift cover up and off0.



120VAC o Remove the control panel cover. Loosen the three #8 hex-head sheet metal screws securing the cover to the control panel (one on the bottom, and one on each side). Lift the cover off and remove it from the unit; this will expose the field wiring barrier strips. 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 boiler for broken or disconnected conductors. o If 120VAC is detected, turn power off to the boiler at the service switch and check the 120VAC fuse located on the right side of the control panel; refer to Figure 16-1 – replace if necessary.



24VAC (only check if 120VAC supply is verified). o

Remove the control panel cover. Loosen the three #8 hex-head sheet metal screws securing the cover to the control panel (one on the bottom, and one on each side). Lift the cover off and remove it from the unit; this will expose the field wiring barrier strips. o

With an AC voltmeter set on the appropriate scale, measure the voltage between the R and COM terminals (terminals 1 and 2). o

If 24VAC is not detected, check the 24VAC fuse located at the transformer in the control panel; refer to

Figure 16-1 – replace if necessary.

Only replace fuses with identical parts, see Figure 16-1. Failure to follow this warning may result in component failure, fire, property damage, serious injury or death.

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Figure 16-1 Tft Control Panel

Figure 14-1 Tft Model

Fuses “A” and “B” 3AG

7A 250 Fast-Acting

Tft Series

Fuse “C” ATO 2A

32V Auto Blade Type

Control Panel Cover

Control Panel

Fuses

The Trinity Tft is equipped with three (3) fuses. 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.



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.



Fuse "C" is an auto blade type and is installed in an “inline” fuse holder; gain access by removing the control panel cover.

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 Figure 16-1. Failure to follow this warning may result in component failure, fire, property damage, serious injury or death.

User Interface (Touch-screen 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 120VAC is being supplied to the appliance and that the service switch located below the display is turned ON (1). If the screen does not become active, perform the following procedure:

Blank Screen

1. Remove the front cover from the boiler.

2. Remove the control panel cover and check Fuse “C” (Auto Blade Type); if faulty check for shorts in the thermostat wiring, correct, then replace fuse (see Figure 16-1).

3. Ensure the “2 by 2” Molex connector, located behind the display at the top, is connected and that the wires are fully inserted (see Figures 16-2 and 16-3). Verify that 24VAC is present between the Blue and Red wires; if not trace wiring back to 24VAC transformer; correct wiring and/or replace transformer (see Figure

13-1).

4. Remove the display assembly from the control panel and check the 24VAC wiring connection on the back of the display; Blue to terminal 7 [24VAC (COM)], Red to terminal 8 [24VAC] (see Figure 16-3).

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System Disconnected

If the Touch-screen Display is not blank, but is displaying “System Disconnected!” in the middle of the screen, ensure the 4 by 1 Molex connector, located behind the display at the top, is connected and that the wires are fully inserted (see Figures 16-2 and 16-3). If the connector appears to be fine, check the wiring connections on the back of the touch-screen display (remove display assembly, see Figure 16-3); Green, Red and Black go to terminals 1, 2 and 3 respectfully.

Figure 16-2 Touch-screen Display Electrical Disconnects

Power Supply Connector (2 by 2) Communication Connector (4 by 1)

Black

Blue (White on bottom)

Green

Red

Black

Red

White

Blue

Green

Red

Figure 16-3 Display Electrical Connection Access

Red

Black

Connectors Located

Behind Display at Top

Access the electrical connections in the back of the display by removing the screws securing the display assembly to the control panel.

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Summary and Diagnostics Display –

The Trinity Tft controller and Touch-screen 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 Configuration, Diagnostics, Details and History pages.

Refer to Appendix A - Controller and Touchscreen Display Instructions 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 Appendix

A - Controller and Touchscreen Display Instructions). In any situation where a 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.

Table 16-1 Troubleshooting Chart

PROBLEM

Display shows “System

Disconnected!” constantly

Burner not operating

Lockout 2 – Waiting for safety data verification

Lockout 9 – Flame bias out of range

POSSIBLE CAUSE CORRECTIVE ACTION

Communication wire disconnected

See, “System Disconnected!” above.

Faulty Sola controller If 24VAC present at Sola controller terminals J8 1

& 2, check Power LED on Sola controller. Verify that connector J8 is securely plugged into the Sola controller. Recycle power to appliance, if Sola controller does not operate, replace the Sola controller.

Heat demand satisfied; no call for heat

Check Demand and Setpoints via Touchscreen.

Check thermostat and DHW aquastat settings (as applicable).

Appliance outlet temperature exceeds “Setpoint - On Hysteresis”

Hold, Delay or Lockout

Burner switch off

Safety parameter(s) has been adjusted

4-20mA input being overdriven.

Control malfunction

Check outlet temperature, setpoint and hysteresis settings via Touchscreen.

Check Summary page on Touchscreen for code.

Check Summary page, if Demand indicates

“Burner switch off” go to diagnostics burner test page and switch on.

Changing settings that are considered safety parameters require “Safety data verification”.

Refer to Appendix A.

If using 4-20mA input, check to ensure current is not greater than 21mA.

Cycle power, if problem returns replace control.

Hold 27 – Flame sensor shorted to ground detected

Hold 61 – Anti short-cycle

Hold 62 – Fan speed not proved

Hold 63 – LCI OFF (Limit control input)

A flame circuit shorted to ground may show up as a flame circuit timeout. Zero-Ohm shorts can display as Hold 27.

Normal operation

Normal Operation (Drive to

Lightoff)

Blown fuse

Wiring defect

- Faulty Sola controller

- Faulty Blower

Incorrect Sola controller.

Check to ensure condensate drain is not blocked.

Check to ensure no external voltage is applied to

R & CH terminals. If using 4-20mA input, check to ensure current is not greater than 21mA.

Allow timer to expire, or reduce Anti short-cycle setting as needed (See Appendix A)

Hold 62 is momentarily displayed prior to burner ignition during the Drive to Lightoff.

Check Fuse

"

A

"

, blown fuse prevents blower from operating.

Inspect blower wiring, ensure connectors at Sola controller and blower are securely attached.

If Hold 62 persists for 15 seconds or more, while the blower is running, check

"

Fan speed

" indicated on display. If

"

LOW RPM

"

,

"

HIGH

RPM

", “0”

or rapidly changing RPM value is displayed, try connecting another Sola controller.

If problem remains, replace blower.

Replace control with correct model (Replacement part number 77777)

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PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION

Hold 65 – Interrupted Air

Switch OFF

Hold 66 – Interrupted air switch ON



Hold / Lockout 67 – ILK OFF Low Water Condition

External Limit Tripped

Lockout or Hold 79 – Outlet

High Limit

Lockout or Hold 81 – Delta T limit

OR

Appliance making banging or hissing sounds

CH or DHW settings



Check operation of internal LWCO.

Indication that an external limit (wired to “LIM”) is open. Not a problem with boiler, check external limit.

Check if CH and/or DHW setpoint temperature plus off hysteresis exceed “High limit” setpoint – factory setting = 200°F (93°C).

CH or DHW pump problem

See

"

Inoperative CH or DHW pump

"

below.

Incorrect “Outlet high limit” setting Increase “Outlet high limit” setting; maximum setting = 200°F (93°C).

Incorrect “Outlet high limit response” setting

Insufficient water flow

Unless deemed unacceptable by local installation codes, the “Outlet high limit response” should be set to “recycle and hold” to prevent lockout.



Check Fuse

"B"



Check appliance pump.



Ensure plumbing is correct. Refer to Section

10.0 System Piping. Check that water pressure

Lockout 82 – Stack limit

Lockout or Hold 85 –

Inlet/Outlet Inversion Limit

Dirty heat exchanger

Incorrect “Stack limit setpoint”

Faulty sensor

Pump flowing in the wrong direction

Incorrect factory sensor wiring

Insufficient water flow is at least 15PSI.



Boiler heat transfer surfaces may be fouled with scale or magnetite. Clean with Fernox

DS-40 Descaler and Cleanser. See Table 10-1.

Inspect and if required clean the combustion chamber and/or heat exchanger. Refer to Section

14.0 Annual Maintenance and Inspection and

Section 10.0 Boiler and Heating System Piping.

Unless installed in Canada with PVC exhaust venting, set “Stack limit setpoint” to maximum setting of 220ºF (104ºC). In Canada PVC exhaust venting is limited to 149ºF (65ºC).

Check resistance of sensor and compare to thermistor resistance chart, see Table 16-2.

Ensure water circulation through the boiler is in the correct direction, see Figure 10-1.

Disconnect flue sensor cable; screen should display “Hold 95 – Stack sensor fault”; if not contact NTI.

See Lockout or Hold 81. Lockout or Hold 88 – Outlet

T Rise limit

Hold 91– Inlet sensor fault Sensor disconnected

Faulty sensor

Hold 92 – Outlet sensor fault Sensor disconnected

Faulty sensor

Hold 95 – Stack sensor fault Sensor disconnected

Check sensor connection located on the bottom of the heat exchanger. Check connection on control board.


Check sensor connection located on the top of the heat exchanger. Check connection on control board.

Check resistance of sensor and compare to thermistor resistance chart, see Table 16-2. (Note the Outlet sensor incorporates two sensors, check resistance individually.)

Check sensor connection located at the bottom of the flue pipe inside the boiler cabinet. Check connection on control board.

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PROBLEM POSSIBLE CAUSE

Hold 95 – Stack sensor fault Faulty sensor

Lockout 109 or Hold 110 –

Ignition failure occurred

(failure to prove flame after 3 ignition attempts)

Lockout 113 – Flame circuit timeout

Lockout 122 – Lightoff rate proving failed

Alert 128 - Modulation rate was limited due to IAS open

Hold 137 – ILK failed to close

Spark cable disconnected

Blocked venting

Blocked condensate drain.

Insufficient gas line pressure

Flame rod disconnected

No 120VAC to Spark Generator

Faulty Spark Generator

No 24VAC to Gas Valve

Faulty Gas Valve

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

Blower is not turning on

Missing or incorrect blower feedback signal

Blower is always on


See Hold / Lockout 67

Tft Series

CORRECTIVE ACTION

Check resistance of sensor and compare to thermistor resistance chart, see Table 16-2. (Note the Outlet sensor incorporates two sensors, check resistance individually.)

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.

Check for blockage of the exhaust-vent, air-inlet, combustion blower, gas valve venturi, burner heat exchanger etc.

Clean condensate trap, inspect condensate drain for blockages and build-up – correct accordingly.

Ensure the manual gas shutoff valve is open.

Refer to Section 9.0 GAS VALVE AND

BURNER SETUP.

Verify that the flame rod signal wire is securely attached to the flame rod and the Sola controller.

Check wiring from Sola controller to spark generator. With an AC voltmeter measure voltage across J5-6 and ground (the Sola controller chassis is connected to the 120VAC supply ground) during trial for ignition.

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.

Check the wiring harness for loose or interrupted connections of the gas valve wiring. With an AC voltmeter, measure the voltage between Sola controller terminals J5-2 to J4-10. There should be

24VAC present during trial for ignition, if not replace Sola controller.

The gas valve emits an audible click when it switches on or off. If the Sola controller is providing 24VAC to the gas valve, and the wiring is intact, it should be possible to detect if the valve is responding.

Check to ensure condensate drain is not blocked.

Check to ensure no voltage is applied to R & CH terminals. If using 4-20mA input, check to ensure current is not greater than 21mA.

See “Blower not operating” below.

See Hold 62 above.

See “Blower operating at high speed while burner is off” below.

Replace control with correct model.

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Lockout 138 – Flame too low Blocked venting

Fowled or faulty flame sensor

Incorrect combustion settings


Check for blockage of the exhaust-vent, Air-inlet, combustion blower, gas valve venturi, heat exchanger etc.

Inspect flame sensor for cracks of fowling, clean or replace as necessary.

Check combustion settings, correct accordingly.

Lockout 173 - Pilot relay feedback incorrect

Lockout 174 – Safety relay feedback incorrect

Alert 206 – Lead Lag header temperature was invalid

Alert 233 – Lead Lag outdoor temperature was invalid

External Electrical Noise Look for sources of electrical noise, i.e. a large motor or multiple pieces of equipment starting at the same time.

Failing Limit Switch in ILK circuit Check operation of internal LWCO, and/or external limit (i.e. devise connected between “R” and “LIM”); replace as necessary

Hardware failure of Sola controller Reset power, If problem persists replace Sola controller.

System Sensor not connected

See Alert 248

If desired, install System Sensor and wire to

SENSOR input connections “SYSTEM” and

“COM”. Otherwise ignore Alert 206

Alert 248 – CH outdoor temperature was invalid

Outdoor sensor not connected

Alert 448 – Flame too low

Alert 449 – Modulation rate was limited due to flame strength

Inoperative CH and/or DHW pump

Blower operating at high speed while burner is off

Outdoor sensor wiring

Faulty sensor

Blocked venting, dirty heat exchanger, failing flame sensor, poor combustion settings.

Normal operation

Blown fuse

Faulty Sola controller

Faulty pump

Blower signal cable disconnected

No 24VAC to Sola controller

The Trinity Tft is factory set with Outdoor Reset enabled. Connect outdoor sensor or disable

Outdoor Reset.

Check wiring of outdoor sensor. Wires should connect to SENSOR inputs “OUTDOOR” and

“COM”.

Check sensor. Should be free of ice and snow.


Indicates that the burner had to shut down due to insufficient flame signal. If Alert persists, refer to

Lockout 138.

Indicates that the minimum permissible modulation rate was temporarily increased due to low flame signal strength. If Alert persists, refer to Lockout 138.

Check Fuse

"

B

"

.

If Fuse “B” not blown, and Sola 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 Sola controller.

If 120VAC supplied to pump, and pump does not operate, replace pump.



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 Sola controller.



Check Power LED on Sola controller.



Check Fuse "

C

"

.



With an AC voltmeter measure voltage at terminals J8 1 & 2, 24VAC should be present.

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Blower power disconnected Blower not operating

Blown fuse

Faulty blower

Tft Series


Verify that the 3-position Molex connector on the wiring harness is securely connected to its mating connector on the blower.

Check Fuse

"

A

"

using the procedure described above. Fuse

"

A

"

protects the blower as well as the ignition spark generator and appliance pump.

Measure voltage across pins 1 & 2 (black and white wires) of 3-position connector on wiring harness. If 120VAC detected, reconnect then and remove 5-position signal connector. Blower should rotate at high speed. If blower does not rotate, replace blower.

Table 16-2 Thermistor Resistance vs. Temperature

Temp °F (°C)

Resistance Ohms (Ω)

Temp °F (°C)

Resistance Ohms (Ω)

-22 (-30)

-4 (-20)

14 (-10)

32 (0)

41 (5)

50 (10)

59 (15)

68 (20)

77 (25)

86 (30)

95 (35)

104 (40)

113 (45)

176,133

96,761

55,218

32,650

25,390

19,900

15,710

12,490

10,000

8,057

6,531

5,327

4,369

122 (50)

131 (55)

140 (60)

149 (65)

158 (70)

167 (75)

176 (80)

185 (85)

194 (90)

203 (95)

212 (100)

230 (110)

-

3,603

2,986

2,488

2,083

1,752

1,481

1,258

1,072

918

789

680

506

-

Table 16-3 Hold and Lockout Codes

Code Description

0

1

2

None

Unconfigured safety data

Waiting for safety data verification

3

4

5

6

7

Internal fault: Hardware fault

Internal fault: Safety Relay key feedback error

Internal fault: Unstable power (DCDC) output

Internal fault: Invalid processor clock

Internal fault: Safety relay drive error

8

9

Internal fault: Zero crossing not detected

Internal fault: Flame bias out of range

10

11

Internal fault: Invalid Burner control state

Internal fault: Invalid Burner control state flag

12

13

14

15

16

17

Internal fault: Safety relay drive cap short

Internal fault: PII shorted to ILK

Internal fault: HFS shorted to LCI

Internal fault: Safety relay test failed due to feedback ON

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

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

66

Note

Hold / No lockout

Lockout

Lockout

Hold

Hold

Hold

Hold

Hold

Hold

Hold

Lockout

Lockout

Hold

Hold / Lockout

Hold / Lockout

Lockout

Lockout

Lockout


│

Trinity



18

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

19

20

Internal fault: Safety RAM write

Internal fault: Flame ripple and overflow

21

22

23

24

25

26

27

Internal fault: Flame number of sample mismatch

Internal fault: Flame bias out of range

Internal fault: Bias changed since heating cycle starts

Internal fault: Spark voltage stuck low or high

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

Internal fault: Static flame ripple

Internal fault: Flame rod shorted to ground detected

28

29

Internal fault: A/D linearity test fails

Internal fault: Flame bias cannot be set in range

30

31

Internal fault: Flame bias shorted to adjacent pin

Internal fault: SLO electronics unknown error

32

33

34

35

36

Internal fault: Safety Key 0





37

38



39

40

41

42

43

44

45

65

66








46

47

64


Flame rod to ground leakage

48

49

58

59

Static flame (not flickering)

24VAC voltage low/high

50

51

Modulation fault

Pump fault

52

Motor tachometer fault

53

54

AC inputs phase reversed

Safety GVT model ID doesn’t match application’s model ID

55

Application configuration data block CRC errors

56-57

RESERVED

Internal fault: HFS shorted to IAS

Internal fault: Mux pin shorted

60

61

62

63

Internal fault: HFS shorted to LFS

Anti short cycle

Fan speed not proved

LCI OFF

PII OFF

Interrupted Airflow Switch OFF

Interrupted Airflow Switch ON

67

ILK OFF

Note

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Hold

Lockout

Lockout

Hold

Hold

Hold

Hold

Hold

Hold

Hold

Hold

Hold

Hold

Hold

Hold

Lockout

Hold

Hold

Hold

Hold

Hold

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Hold

Hold

Hold

N/A

Hold

Hold

Hold

67

Trinity

│




68

83

84

ILK ON

69

70

Pilot test hold

Wait for leakage test completion

71

Input power frequency mismatch

72-77

RESERVED

78

Demand lost in run

79

Outlet high limit

80

DHW high limit

81

Delta T limit

82

Stack limit

Delta T exchanger/outlet limit

Delta T inlet/exchanger limit

85

86

87

88

89

90

91

Inlet/Outlet inversion limit (See Table 17-1)

Exchanger/outlet inversion limit

Inlet/exchanger inversion limit

Outlet T-Rise limit (See Table 17-1)

Exchanger T-rise limit

Heat exchanger high limit

Inlet sensor fault

92

93

105

106

Outlet sensor fault

DHW sensor fault

94

95

96

97

98

99

100

Header sensor fault

Stack sensor fault

Outdoor sensor fault

Internal fault: A2D mismatch

Internal fault: Exceeded VSNSR voltage tolerance

Internal fault: Exceeded 28V voltage tolerance

Pressure sensor fault

101

Exchanger sensor fault

102-104

RESERVED

Flame detected out of sequence

Flame lost in MFEP

107

108

121

Flame lost early in run

Flame lost in run

109

110

111

112

113

Ignition failed

Ignition failure occurred

Flame current lower than WEAK threshold

Pilot test flame timeout

Flame circuit timeout

114-115

RESERVED

116

Wait for OK to Run

117

118

119

120

Flap valve condensate fault

Controller interaction system fault

Controller interaction communications fault

Flap valve backflow fault

Flap valve fault

122

123

Light off rate proving failed

Purge rate proving failed

124

High fire switch OFF

68

Tft Series

Note

Lockout

Disabled

Disabled

Hold

Hold

Hold

Hold

Hold

Hold

Lockout

Lockout

Lockout

Hold

Disabled

N/A

Hold

Hold

Lockout

Hold

Hold

Disabled

Hold / Lockout

Lockout

Disabled

Disabled

Hold

Disabled

Disabled

Hold / Lockout

Lockout

Lockout

Lockout

Lockout

Hold

Hold

Lockout

Lockout

Disabled

Disabled

Hold

Hold

Disabled

Disabled

Lockout

Lockout

Hold


│

Trinity



125

High fire switch stuck ON

126

127

Low fire switch OFF

Low fire switch stuck ON

128

Fan speed failed during pre-purge

129

Fan speed failed during pre-ignition

130

Fan speed failed during ignition

131

136

Fan movement detected during standby

132

Fan speed failed during run

133-135

RESERVED

Interrupted Airflow Switch failed to close

137

138

ILK failed to close

Flame too low

139-142

RESERVED

143

Internal fault: Flame bias out of range 1

144

145

146

147

148






149

150

Flame detected

Flame not detected

151

152

153

154

155

156

157

High fire switch ON

Combustion pressure ON

Combustion pressure OFF

Purge fan switch ON

Purge fan switch OFF

Combustion pressure and Flame ON

Combustion pressure and Flame OFF

158

159

Main valve ON

Main valve OFF

160

161

171

172

Ignition ON

Ignition OFF

162

163

Pilot valve ON

Pilot valve OFF

164

169

Block intake ON

165

Block intake OFF

166-168

RESERVED

Safety opto bad in test state

170

Safety relay opto feedback incorrect

Safety relay feedback incorrect in run

Main relay feedback incorrect

173

174

175

176

177

Pilot relay feedback incorrect

Safety relay feedback incorrect

Safety relay open

Main relay ON at safe start check

Pilot relay ON at safe start check

178

Safety relay ON at safe start check

179-180

RESERVED

181

Invalid Blocked condensate enable setting

Note

Hold

Hold

Hold

Hold / Lockout

Hold / Lockout

Hold / Lockout

Hold

Hold

Hold

Hold

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Hold / Lockout

Hold

Hold / Lockout

Hold / Lockout

Hold / Lockout

Hold / Lockout

Hold / Lockout

Hold / Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Disabled

69

Trinity

│




205

206

207

208

209

210

211

212

213

196

197

198

199

200

201

202

203

204

189

190

191

192

193

194

195

182

183

184

185

186

187

188

221

222

223

224

225

226

227

214

215

216

217

218

219

220

228

229

230

Invalid J7-1 configuration, both LFS and Blocked condensate

Invalid J7-2 configuration, both HFS and Flap valve

Invalid BLOWER/HSI output setting

Invalid Delta T limit enable setting

Invalid Delta T limit response setting

Invalid DHW high limit enable setting

Invalid DHW high limit response setting

Invalid Flame sensor type setting

Invalid interrupted air switch enable setting

Invalid interrupted air switch start check enable setting

Invalid Igniter on during setting

Invalid Ignite failure delay setting

Invalid Ignite failure response setting

Invalid Ignite failure retries setting

Invalid Ignition source setting

Invalid Interlock open response setting

Invalid Interlock start check setting

Invalid LCI enable setting

Invalid light off rate setting

Invalid Light off rate proving setting

Invalid Main Flame Establishing Period time setting

Invalid MFEP flame failure response setting

Invalid NTC sensor type setting

Invalid Outlet high limit response setting

Invalid Pilot Flame Establishing Period setting

Invalid PII enable setting

Invalid pilot test hold setting

Invalid Pilot type setting

Invalid Post-purge time setting

Invalid Power up with lockout setting

Invalid Pre-ignition time setting

Invalid Pre-purge rate setting

Invalid Pre-purge time setting

Invalid Purge rate proving setting

Invalid Run flame failure response setting

Invalid Run stabilization time setting

Invalid Stack limit enable setting

Invalid Stack limit response setting

Unconfigured Delta T limit set point setting

Unconfigured DHW high limit set point setting

Unconfigured Outlet high limit set point setting

Unconfigured Stack limit set point setting

Invalid DHW demand source setting

Invalid Flame threshold setting

Invalid Outlet high limit set point setting

Invalid DHW high limit set point setting

Invalid Stack limit set point setting

Invalid Modulation output setting

Invalid CH demand source setting

70

Note

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Disabled

Disabled

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Tft Series


│

Trinity



4

5

6

7

1

2

3

8

9

231

232

233

234

235

236

237

Invalid Delta T limit delay setting

Invalid Pressure sensor type setting

Invalid IAS closed response setting

Invalid Outlet high limit enable setting

Invalid Outlet connector type setting

Invalid Inlet connector type setting

Invalid DHW connector type setting

Invalid Stack connector type setting

238

239

240

241

242

243

244

Invalid Header connector type setting

Invalid Outdoor connector type setting

Exchanger sensor not allowed with stack connector setting

Invalid DHW auto detect configuration

Invalid UV with spark interference not compatible with Igniter on throughout

245

246

247

248

249

Invalid Outlet connector type setting for T-rise

4-20mA cannot be used for both modulation and setpoint control

Invalid ILK bounce detection enable

Invalid forced recycle interval

STAT cannot be demand source when Remote Stat is enabled

250

251

Invalid Fan speed error response

Lead drop-stage on error setting does not match drop method configuration

252

253

254

255

256

257

258

Invalid Line frequency setting

Lead Lag modulation sensor not valid with setpoint source

Lead Lag modulation sensor not valid with local setpoint source

Lead Lag modulation sensor not valid with local modulation source

Selected Controller interaction enable setting is not allowed

Controller interaction enable does not match neighbor stack fault setting

Controller ID must be non-zero if controller interaction is enabled

259

260

Modulation output must be fan if controller interaction is enabled

Asymmetrical paired (no flap) is set but flap switch input is energized

261

262

Neighbor burner control blower fault detected

Blower fault detected during flap test

263

264

Invalid DHW demand temperature setting

Invalid preferred outlet high limit setting

265

Invalid preferred lightoff rate setting

266

Invalid preferred stack limit rate setting

Table 16-4 Alert Codes

Code

0

Description

None (No alert)

Alert PCB was restored from factory defaults

Safety configuration parameters were restored from factory defaults

Configuration parameters were restored from factory defaults

Invalid Factory Invisibility PCB was detected

Invalid Factory Range PCB was detected

Invalid range PCB record has been dropped

EEPROM lockout history was initialized

Switched application annunciation data blocks

Switched application configuration data blocks

Note

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

Lockout

71

Trinity

│




39

40

41

42

43

35

36

37

38

28

29

30

31

32

33

34

24

25

26

27

19

20

21

22

23

15

16

17

18

10

11

12

13

14

53

54

55

56

57

58

48

49

50

51

52

44

45

46

47

Configuration was restored from factory defaults

Backup configuration settings was restored from active configuration

Annunciation configuration was restored from factory defaults

Annunciation configuration was restored from backup

Safety group verification table was restored from factory defaults

Safety group verification table was updated

Invalid Parameter PCB was detected

Invalid Range PCB was detected

Alarm silence time exceeded maximum

Invalid safety group verification table was detected

Backdoor password could not be determined

Invalid safety group verification table was not accepted

CRC errors were found in application configuration data blocks

Backup Alert PCB was restored from active one

RESERVED

Lead Lag operation switch was turned OFF

Lead Lag operation switch was turned ON

Safety processor was reset

Application processor was reset

Burner switch was turned OFF

Burner switch was turned ON

Program Module (PM) was inserted into socket

Program Module (PM) was removed from socket

Alert PCB was configured

Parameter PCB was configured

Range PCB was configured

Program Module (PM) incompatible with product was inserted into socket

Program Module application parameter revision differs from application processor

Program Module safety parameter revision differs from safety processor

PCB incompatible with product contained in Program Module

Parameter PCB in Program Module is too large for product

Range PCB in Program Module was too large for product

Alert PCB in Program Module was too large for product

IAS start check was forced on due to IAS enabled

Low voltage was detected in safety processor

High line frequency occurred

Low line frequency occurred

Invalid subsystem reset request occurred

Write large enumerated Modbus register value was not allowed

Maximum cycle count was reached

Maximum hours count was reached

Illegal Modbus write was attempted

Modbus write attempt was rejected (NOT ALLOWED)

Illegal Modbus read was attempted

Safety processor brown-out reset occurred

Application processor watchdog reset occurred

Application processor brown-out reset occurred

Safety processor watchdog reset occurred

Alarm was reset by the user at the control

72

Tft Series


│

Trinity



103

104

105

106

107

108

98

99

100

101

102

94

95

96

97

73

74

75

76

68

69

70

71

72

64

65

66

67

59

60

61

62

63

Burner control firing rate was > absolute max rate

Burner control firing rate was < absolute min rate

Burner control firing rate was invalid, % vs. RPM

Burner control was firing with no fan request

Burner control rate (non-firing) was > absolute max rate

Burner control rate (non-firing) was < absolute min rate

Burner control rate (non-firing) was absent

Burner control rate (non-firing) was invalid, % vs. RPM

Fan off cycle rate was invalid, % vs. RPM

Set point was over ridden due to sensor fault

Modulation was over ridden due to sensor fault

No demand source was set due to demand priority conflicts

CH 4-20mA signal was invalid.

Flame strength rate differential was invalid

Flame strength step rate was invalid

Periodic forced recycle

Absolute max fan speed was out of range

Absolute min fan speed was out of range

89

90

91

92

93

85

86

87

88

77

78

79

80

Fan gain down was invalid

Fan gain up was invalid

Fan minimum duty cycle was invalid

Fan pulses per revolution was invalid

81 Fan PWM frequency was invalid

82-83 RESERVED

84 Lead Lag CH 4-20mA water temperature setting was invalid

No Lead Lag add stage error threshold was configured

No Lead Lag add stage detection time was configured

No Lead Lag drop stage error threshold was configured

No Lead Lag drop stage detection time was configured

Lead Lag all boiler off threshold was invalid

Modulation output type was invalid

Firing rate control parameter was invalid

Forced rate was out of range vs. min/max modulation

Forced rate was invalid, % vs. RPM

Slow start ramp value was invalid

Slow start degrees value was invalid

Slow start was ended due to outlet sensor fault

Slow start was end due to reference set point fault

CH max modulation rate was invalid, % vs. RPM

CH max modulation rate was > absolute max rate

CH modulation range (max minus min) was too small (< 4% or 40 RPM)

DHW max modulation rate was invalid, % vs. RPM

DHW max modulation rate was > absolute max rate

DHW modulation range (max minus min) was too small (< 4% or 40 RPM)

Min modulation rate was < absolute min rate

Min modulation rate was invalid, % vs. RPM

Manual rate was invalid, % vs. RPM

Slow start enabled, but forced rate was invalid

Analog output hysteresis was invalid

73

Trinity

│




131

132

133

134

135

136

137

123

124

125

126

127

128

129

130

116

117

118

119

120

121

122

109

110

111

112

113

114

115

155

157

158

159

160

161

162

163

164

165

166

138

139

140

146

147

148

149

151

152

Analog modulation output type was invalid

IAS open rate differential was invalid

IAS open step rate was invalid

Mix max modulation rate was invalid, % vs. RPM

Mix max modulation rate was > absolute max or < absolute min rates

Mix modulation range (max minus min) was too small (< 4% or 40 RPM)

Fan was limited to its minimum duty cycle

Manual rate was > CH max modulation rate

Manual rate was > DHW max modulation rate

Manual rate was < min modulation rate

Manual rate in Standby was > absolute max rate

Modulation commanded rate was > CH max modulation rate

Modulation commanded rate was > DHW max modulation rate

Modulation commanded rate was < min modulation rate

Modulation rate was limited due to outlet limit

Modulation rate was limited due to Delta-T limit

Modulation rate was limited due to stack limit

Modulation rate was limited due to anti-condensation

Fan Speed out of range in RUN

Modulation rate was limited due to IAS was open

Slow start ramp setting of zero will result in no modulation rate change

No forced rate was configured for slow start ramp

CH demand source was invalid

CH P-gain was invalid

CH I-gain was invalid

CH D-gain was invalid

CH OFF hysteresis was invalid

CH ON hysteresis was invalid

CH sensor type was invalid

CH hysteresis step time was invalid

CH remote control parameter was invalid

CH ODR not allowed with remote control

CH control was suspended due to fault

CH header temperature was invalid

CH outlet temperature was invalid

CH steam pressure was invalid

Minimum water temperature parameter was greater than setpoint

Minimum water temperature parameter was greater than time of day setpoint

CH modulation rate source parameter was invalid

DHW demand source was invalid

DHW P-gain was invalid

DHW I-gain was invalid

DHW D-gain was invalid

DHW OFF hysteresis was invalid

DHW ON hysteresis was invalid

DHW hysteresis step time was invalid

DHW sensor type was invalid

Inlet sensor type was invalid for DHW

Outlet sensor type was invalid for DHW

74

Tft Series


│

Trinity

194

195

196

197

198

199

200

185

186

187

188

189

190

191

192

193

178

179

180

181

182

183

184

167

168

169

170

171

172

173

174

175

176

177

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215



DHW storage OFF hysteresis was invalid

DHW storage ON hysteresis was invalid

DHW modulation sensor type was invalid

DHW modulation sensor was not compatible for Auto mode

DHW control was suspended due to fault

DHW temperature was invalid

DHW inlet temperature was invalid

DHW outlet temperature was invalid

DHW high limit must be disabled for Auto mode

DHW sensor type was not compatible for Auto mode

DHW priority source setting was invalid

DHW priority method setting was invalid

CH S5 (J8-11) sensor was invalid

CH Inlet temperature was invalid

CH S10 (J10-7) sensor was invalid

Lead Lag CH setpoint source was invalid

Lead Lag P-gain was invalid

Lead Lag I-gain was invalid

Lead Lag D-gain was invalid

Lead Lag OFF hysteresis was invalid

Lead Lag ON hysteresis was invalid

Lead Lag slave enable was invalid

Lead Lag hysteresis step time was invalid

No Lead Lag Modbus port was assigned

Lead Lag base load common setting was invalid

Lead Lag DHW demand switch setting was invalid

Lead Lag Mix demand switch setting was invalid

Lead Lag modulation sensor setting was invalid

Lead Lag backup modulation sensor setting was invalid

Lead Lag slave mode setting was invalid

Lead Lag rate allocation setting was invalid

Lead selection setting was invalid

Lag selection setting was invalid

Lead Lag slave return setting was invalid

Lead Lag add stage method setting was invalid

STAT may not be a Lead Lag CH demand source when Remote Stat is enabled

Lead Lag base load rate setting was invalid

Lead Lag master was suspended due to fault

Lead Lag slave was suspended due to fault

Lead Lag header temperature was invalid

Lead Lag was suspended due to no enabled Program Module installed

Lead Lag slave session has timed out

Too many Lead Lag slaves were detected

Lead Lag slave was discovered

Incompatible Lead Lag slave was discovered

No base load rate was set for Lead Lag slave

Lead Lag slave unable to fire before demand to fire delay expired

Adding Lead Lag slave aborted due to add requirement change

No Lead Lag slaves available to service demand

75

232

233

234

235

236

237

238

239

240

225

226

227

228

229

230

231

216

217

218

219

220

221

222

223

224

251

252

253

254

255

259

260

261

241

243

244

245

246

247

248

249

250

262

263

264

265

266

267

268

Trinity

│




No Lead Lag active service was set due to demand priority conflicts

No Lead Lag add stage method was specified

No Lead Lag drop stage method was specified

Using backup Lead Lag header sensor due to sensor failure

Lead Lag frost protection rate was invalid

Lead Lag drop stage method setting was invalid

CH frost protection temperature was invalid

CH frost protection inlet temperature was invalid

DHW frost protection temperature was invalid

No anticondensation setpoint was configured for frost protection

RESERVED

DHW priority override time was not derated due to invalid outdoor temperature

Warm weather shutdown was not checked due to invalid outdoor temperature

Lead Lag slave communication timeout

RESERVED

LL set point was invalid

LL time of day set point was invalid

LL outdoor temperature was invalid

LL ODR time of day set point was invalid

LL ODR time of day set point exceeded normal set point

LL max outdoor set point was invalid

LL min outdoor set point was invalid

LL min water set point was invalid

LL outdoor temperature range was too small (minimum 12 C / 22 F)

LL water temperature range was too small (minimum 12 C / 22 F)

Lead Lag DHW setpoint was invalid

Lead Lag CH demand switch was invalid

Lead Lag ODR min water temperature was invalid

RESERVED

CH set point was invalid

CH time of day set point was invalid

CH outdoor temperature was invalid

CH ODR time of day setpoint was invalid

CH ODR time of day set point exceeds normal set point

CH max outdoor set point was invalid

CH min outdoor setp oint was invalid

CH min water set point was invalid

CH outdoor temperature range was too small (minimum 12 C / 22 F)

CH water temperature range was too small (minimum 12 C / 22 F)

CH ODR min water temperature was invalid

RESERVED

DHW set point was invalid

DHW time of day set point was invalid

DHW storage setpoint was invalid

STAT may not be a DHW demand source when Remote Stat is enabled

No DHW anticondensation setpoint was configured

No CH anticondensation setpoint was configured

STAT may not be a CH demand source when Remote Stat is enabled

CH 4mA water temperature setting was invalid

76

Tft Series


│

Trinity



294

295

296

297

298

299

300

301

287

288

289

290

291

292

293

278

279

280

281

282

283

284

285

286

269

270

271

272

273

274

275

276

277

309

310

311

312

313

314

315

316

317

302

303

304

305

306

307

308

CH 20mA water temperature setting was invalid

Steam 4mA water temperature setting was invalid

Steam 20mA water temperature setting was invalid

Abnormal Recycle: Pressure sensor fault

Abnormal Recycle: Safety relay drive test failed

Abnormal Recycle: Demand off during Pilot Flame Establishing Period

Abnormal Recycle: LCI off during Drive to Purge Rate

Abnormal Recycle: LCI off during Measured Purge Time

Abnormal Recycle: LCI off during Drive to Light off Rate

Abnormal Recycle: LCI off during Pre-Ignition test

Abnormal Recycle: LCI off during Pre-Ignition time

Abnormal Recycle: LCI off during Main Flame Establishing Period

Abnormal Recycle: LCI off during Ignition period

Abnormal Recycle: Demand off during Drive to Purge Rate

Abnormal Recycle: Demand off during Measured Purge Time

Abnormal Recycle: Demand off during Drive to Light off Rate

Abnormal Recycle: Demand off during Pre-Ignition test

Abnormal Recycle: Demand off during Pre-Ignition time

Abnormal Recycle: Flame was on during Safe Start check

Abnormal Recycle: Flame was on during Drive to Purge Rate

Abnormal Recycle: Flame was on during Measured Purge Time

Abnormal Recycle: Flame was on during Drive to Light off Rate

Abnormal Recycle: Flame was not on at end of Ignition period

Abnormal Recycle: Flame was lost during Main Flame Establishing Period

Abnormal Recycle: Flame was lost early in Run

Abnormal Recycle: Flame was lost during Run

Abnormal Recycle: Leakage test failed

Abnormal Recycle: Interrupted air flow switch was off during Drive to Purge Rate

Abnormal Recycle: Interrupted air flow switch was off during Measured Purge Time

Abnormal Recycle: Interrupted air flow switch was off during Drive to Light off Rate

Abnormal Recycle: Interrupted air flow switch was off during Pre-Ignition test

Abnormal Recycle: Interrupted air flow switch was off during Pre-Ignition time

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

Abnormal Recycle: Ignition failed due to interrupted air flow switch was off

Abnormal Recycle: ILK off during Drive to Purge Rate

Abnormal Recycle: ILK off during Measured Purge Time

Abnormal Recycle: ILK off during Drive to Light off Rate

Abnormal Recycle: ILK off during Pre-Ignition test

Abnormal Recycle: ILK off during Pre-Ignition time

Abnormal Recycle: ILK off during Main Flame Establishing Period

Abnormal Recycle: ILK off during Ignition period

Run was terminated due to ILK was off

Run was terminated due to interrupted air flow switch was off

Stuck reset switch

Run was terminated due to fan failure

Abnormal Recycle: Fan failed during Drive to Purge Rate

Abnormal Recycle: Fan failed during Measured Purge Time

Abnormal Recycle: Fan failed during Drive to Light off Rate

Abnormal Recycle: Fan failed during Pre-Ignition test

77

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343

344

345

346

347

348

349

350

351

336

337

338

339

340

341

342

327

328

329

330

331

332

333

334

335

318

319

320

321

322

323

324

325

326

361

362

363

364

365

366

352

353

354

355

356

357

358

359

360

Abnormal Recycle: Fan failed during Pre-Ignition time

Abnormal Recycle: Fan failed during Ignition period

Abnormal Recycle: Fan failed during Main Flame Establishing Period

Abnormal Recycle: Main Valve off after 10 seconds of RUN

Abnormal Recycle: Pilot Valve off after 10 seconds of RUN

Abnormal Recycle: Safety Relay off after 10 seconds of RUN

Abnormal Recycle: Hardware flame bias

Abnormal Recycle: Hardware static flame

Abnormal Recycle: Hardware flame current invalid

Abnormal Recycle: Hardware flame rod short

Abnormal Recycle: Hardware invalid power

Abnormal Recycle: Hardware invalid AC line

Abnormal Recycle: Hardware SLO flame ripple

Abnormal Recycle: Hardware SLO flame sample

Abnormal Recycle: Hardware SLO flame bias range

Abnormal Recycle: Hardware SLO flame bias heat

Abnormal Recycle: Hardware SLO spark stuck

Abnormal Recycle: Hardware SLO spark changed

Abnormal Recycle: Hardware SLO static flame

Abnormal Recycle: Hardware SLO rod shorted

Abnormal Recycle: Hardware SLO AD linearity

Abnormal Recycle: Hardware SLO bias not set

Abnormal Recycle: Hardware SLO bias shorted

Abnormal Recycle: Hardware SLO electronics

Abnormal Recycle: Hardware processor clock

Abnormal Recycle: Hardware AC phase

Abnormal Recycle: Hardware A2D mismatch

Abnormal Recycle: Hardware VSNSR A2D

Abnormal Recycle: Hardware 28V A2D

Abnormal Recycle: Hardware HFS IAS shorted

Abnormal Recycle: Hardware PII INTLK shorted

Abnormal Recycle: Hardware HFS LCI shorted

Abnormal Recycle: Hardware HFS LFS shorted

Abnormal Recycle: Invalid zero crossing

Abnormal Recycle: fault stack sensor

Abnormal Recycle: stack limit

Abnormal Recycle: delta T limit

Abnormal Recycle: fault outlet sensor

Abnormal Recycle: outlet high limit

Abnormal Recycle: fault DHW sensor

Abnormal Recycle: DHW high limit

Abnormal Recycle: fault inlet sensor

Abnormal Recycle: Check Parameters Failed

Internal error: No factory parameters were detected in control

Internal error: PID iteration frequency was invalid

Internal error: Demand-Rate interval time was invalid

Internal error: Factory calibration parameter for modulation was invalid

Internal error: CH PID P-scaler was invalid

Internal error: CH PID I-scaler was invalid

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457

458

459

460

461

462

463

464

465

448

449

450

451

452

453

454

455

456

466

467

468

469

470

471

472

473

474

475

476

367

368

369

370

371

Internal error: CH PID D-scaler was invalid

Internal error: DHW PID P-scaler was invalid

Internal error: DHW PID I-scaler was invalid

Internal error: DHW PID D-scaler was invalid

Internal error: Lead Lag master PID P-scaler was invalid

372

373

Internal error: Lead Lag master PID I-scaler was invalid

Internal error: Lead Lag master PID D-scaler was invalid

374

375

Abnormal Recycle: Hardware flame bias high

Abnormal Recycle: Hardware flame bias low

376

377

Abnormal Recycle: Hardware flame bias delta high

Abnormal Recycle: Hardware flame bias delta low

378

379

Abnormal Recycle: Hardware flame bias dynamic high

Abnormal Recycle: Hardware flame bias dynamic low

380

381

382

383

Abnormal Recycle: Fan Speed Not Proven

Abnormal Recycle: Fan Speed Range Low

Abnormal Recycle: Fan Speed Range High

Abnormal Recycle: Pre-Ignition test failed, recycle

384-

388 RESERVED

389 Abnormal Recycle: AC power frequency Mismatch

390-447 RESERVED

Flame too low

Modulation rate was limited due to flame strength

RESERVED

Circulator control was invalid

Circulator P-gain was invalid

Circulator I-gain was invalid

Circulator temperature was invalid

Circulator outlet temperature was invalid

Circulator inlet temperature was invalid

Circulator outlet temperature was invalid

Circulator sensor choice was invalid

Circulator PID setpoint was invalid

LCI demand lost in run

Demand lost in run

STAT demand lost in run

Demand lost in run due to no flame

LCI lost in Combustion Pressure Establishing Period

LCI lost in Combustion Pressure Stabilizing Period

RESERVED

Internal error: EEPROM write was attempted before EEPROM was initialized

Internal error: EEPROM cycle count address was invalid

Internal error: EEPROM days count address was invalid

Internal error: EEPROM hours count address was invalid

Internal error: Lockout record EEPROM index was invalid

Internal error: Request to write PM status was invalid

Internal error: PM parameter address was invalid

Internal error: PM safety parameter address was invalid

Internal error: Invalid record in lockout history was removed

Internal error: EEPROM write buffer was full

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553

564

600

601

603

604

605

606

609

495

496

497

498

499

500

550

610

611

612

613

614

615

616

622

623

624

629

486

487

488

489

490

491

492

493

494

477

478

479

480

481

482

483

484

485

Internal error: Data too large was not written to EEPROM

Internal error: Safety key bit 0 was incorrect
















Internal error: Safety relay timeout

Internal error: Safety relay commanded off

Internal error: Unknown safety error occurred

Internal error: Safety timer was corrupt

Internal error: Safety timer was expired

Internal error: Safety timings

Internal error: Safety shutdown

Delta T inlet/outlet limit was exceeded

Inlet/outlet inversion occurred

Outlet T-rise limit was exceeded

Delta T inlet temperature was invalid

Delta T outlet temperature was invalid

CH ODR boost max offpoint temperature was invalid

CH ODR boost max offpoint temperature was too low

Lead Lag ODR boost max offpoint temperature was invalid

Lead Lag ODR boost max offpoint temperature was too low

Time to rotate lead boiler to next firing slave

Time to rotate lead boiler to next available slave

Time to rotate lead boiler to first firing slave in order

Time to rotate lead boiler to lowest running slave

Lead boiler was rotated based on new firing sequence order

Lead boiler was rotated based on measured run time

Parameter PCB was switched to backup

Range PCB was switched to backup

Lead Lag modulation sensor was not valid with setpoint source

Lead Lag modulation sensor was not valid with local setpoint source

Lead Lag modulation sensor was not valid with local modulation rate source

Disagreement on number of interacting controls

80

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17.0 PARTS LIST

For a list of parts that corresponds to the item numbers in the callouts, refer to Table 17-1. Note 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 17-1(a) Tft Heat Engine and Gas Train (Tft60-110 Illustrated)

34

25

36

11

2

10

5

6

12

1

32

4

7

8

9

9

14

105

13

33

26

15

21

17

40

43

15

18

17

16

81

74

37

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Figure 17-1(b) Tft Cabinet, Vent and Air-inlet Parts (Tft60-110 Illustrated)

41

44

33

42

46

75

76

45

73

78

45

80

28

39

20

37

74

77

82

27

48

72

95

55

35

49

Tft Series

57

85

56

68

63

61

58

60

Figure 17-1(c) Tft Control Panel

23

65

67

69

54

70

52

59

62

70

107

82


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Trinity

Figure 17-1(d) Tft Installation Kit

19 108

112

110

109

92

31

93

38

38

113

111

8

8

8

71

30

83

111

79

103

50

119

Natural to LP Conversion Kit

Table 17-1 Trinity Tft Parts List

Item Part #

1 84547

Models

Tft155-250

1

1

2

84552

84541

84548

Tft300-399

Tft60-110

Tft155-250

2

2

4

5

84553

84542

84441

82052

Tft300-399

Tft60-110

Tft60-399

Lx150, M100(V), Tft60-110,

Ti100-150, Ts80

5

5

6

6

7

7

7

7

8

8

8

8

8

Description

Premix Burner, Tft155-250



Premix Burner Gasket Tft155-250

Premix Burner Gasket Tft300-399

Premix Burner Gasket, Tft60-110

Blower Gasket Tft60-399

EBM Blower RG130

82661 (82661-1) Lx150E, Lx200-300, Tft155-

250, Ti200

82994 (82994-1) Lx400, Tft300-399, Ti400

82054-2 (84299) Lx150-300, M100(V), T150-

200, Tft60-250, Ti100-200,

Ts80, Tx200, Tx200C

83106

81994

Lx400, Tft300-399, Ti400

Lx300, T150-200, Tft155-

250, Tx200, Tx200C

82990

84433

83205

82650

84157

84471

84470

84434

Lx400, Tft300-399, Ti400

Tft110

Ts80, Tft60-85, Ti100

Lx150-200, M100(V), Tft110,

Ti150-200

Lx300, Tft155-250, Tx200,

Tx200C

Tft300-399 (LP)

Tft300-399 (NG)

Tft60-85

EBM Blower Kit RG148/1200-3633 (55667.01970)

EBM Blower Kit RG148/Enhanced (55667.21200)

Venturi Gasket, Cork

O-Ring, Venturi To Blower Lx/Ti400, Tft300-399

Venturi 051

Venturi 45900450-010

Venturi 002

Venturi 003

Gas Valve Orifice 5.2mm, LP



Gas Valve Orifice 9.6 mm, NG


83

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Item Part #

9 82054 (83204)

9 82989

10 83870

Models

Lx150

–300, M100(V), T150-

200, Tft60-250, Ti100-200,

Ts80

Lx400, Tft300-399, Ti400

Lx150-500, Tft60-399, Ts80 Ignition Electrode, Dual (Includes P/N: 82774)

11

12 82600 (82600-1) Lx150-300, M100(V), Tft60-

250, Ti100-200, Ts80

13

82774

83194

13 83883

Lx150-800, Tft60-399,

Ti100-400, Ts80

Lx400, Tft300-399, Ti400

M100(V), Lx150-300, Tft60-

250, Ti100-200, Ts80

Description

Gas Valve VK8115V1341B (Valve Only)

Gas Valve VR8615VB 1044B

Igniter Gasket, Graphite (Ignition Electrode / Flame

Rod)

Gas Valve Regulator Vent Upgrade Kit c/w Clamp

(Includes P/N: 83134)

Gas Valve Inlet O-Ring Gasket

Gas Valve Inlet O-Ring Gasket

14 84435

14 84442

15 84039

15 84419

16 84424

17 84464

17 84465

17 84463

Tft300-399

Tft60-250

Tft300-399

Tft60-250

Tft60-399

Tft155-250

Tft300-399

Gas Valve Adapter 3/4" NPT Elbow

Gas Valve Adapter 1/2" NPT Straight

Sensor, Supply & Return Dual Tft300-399

Sensor, Supply & Return Dual Tft60-250

Low Water Cut Off

Pipe Coupling, Groove Joint, 1-1/4" Tft155-250

Pipe Coupling, Groove Joint, 1-1/2" Tft300-399

18

18

18

19

20

21

23

25

26

26

30

31

32

32

84457

84460

84454

84474

83608

21 84458

21 84461

84455

84423

84546

84456

84459

26 84453

27 84505

27 84504

28 84637

30 82913 (83510)

85119

84479

84549

84554

32 84545

33 84551

33 84556

33 84544

34 84550

34 84555

34 84543

Tft60-110 Pipe Coupling, Groove Joint, 1"

Tft60-110

Supply Pipe, SS, 1-1/4" Tft155-250

Tft300-399

Tft60-110

Tft60-399, Tx51-200,

Tx200C

Supply Pipe, SS 1-1/2"

Supply Pipe, SS, 1"

Auto Air Vent, 1/2" NPT

Lx150-400, Tft60-399, Ts80 Flue Sensor, Dual

Tft155-250

Tft300-399

Tft60-110

Tft60-399, Tx51-200,

Tx151C, Tx200C

Return Pipe, SS 1-1/4"

Return Pipe, SS 1-1/2"

Return Pipe, SS 1"

Receptacle, 120VAC

Tft60-399

Tft155-250

Tft300-399

Tft60-110

Tft300-399

Sight Glass Assembly Tft-series

Heat Exchanger ASME Tft155-250



Tube Strap Tft300-399

Tft60-250

Tft60-399

M100(V), Tft60-399, Ti100-

400, Tx51-200, Tx151C,

Tx200C

Tft60-399, VM110, VM110P Condensate Trap (Used on Tft models prior to 15140)

Tft60-399 Elbow, Brass, Street 90, 3/4"

Tft155-250

Tft300-399

Burner Plate Gasket Tft155-250


Tft60-110

Tft155-250

Tft300-399

Tft60-110

Tft155-250

Tft300-399

Tft60-110

Tube Strap Tft60-250

Plug, Flue Sensor, Tft-series

Condensate Trap (Used on Tft models prior to 15140)


Burner Plate Ceramic Disc Tft155-250



Burner Plate Tft155-250



84


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Item Part #

35 84214

Models

Ts80, Tft60-399, Tx51-200,

Tx151C, Tx200C

36 82762 (82762-1) Lx150-500, M100(V), Tft60-

399, Ti100-400, Ts80

37 82099

37 83951 (82100)

38 82615

Lx150-300, M100(V), T150-

200, Tft60-250, Ti100-200,

Ts80, Tx200, Tx200C

Lx400, Tft300-399, Ti400

Tft60-110, Tx51-151,

Tx151C

39 84558

39 84559

39 84557

40 83718

41

41

41

84438

84451

84437

42 84450

42 84436

43 85107

44 84497

Tft155-250

Tft300-399

Tft60-110

Description

Grommet, Diaphragm, 1/2"

Flame Rod Lx/Ti/Ts/Tft (60-500) (Includes P/N: 82774)

1-1/2" MJ Coupling

2" MJ Coupling

Round Mesh Vent Screen, 2"

Tft60-399, VM110, VM110P Hose Clamp, 1-1/16 to 1-

1/2”

Tft155-250

Tft300-399

Tft60-110

Tft300-399

Tft60-250

Air Inlet Assembly Tft155-250



Flue Outlet Adapter SS 3" (304066) Tft155-250

Flue Outlet Adapter SS 4" (304081) Tft300-399

Flue Outlet Adapter SS 3" (304065 D) Tft60-110

Air Inlet Adapter SS 4" Tft300-399

Air Inlet Adapter SS 3" Tft60-250

45

45 84566

46 83505

46

47

47

47

84567

83923

83506

84439

84440

48 TBD

49 85163

50 83955

52 83592-TFT

Tft60-399, VM110, VM110P Condensate Drain Adapter Tube

Tft60-399 Exhaust Test Plug, EPDM Tft60-399

Tft300-399

Tft60-250

Lx150-300, Tft60-250, Ts80,

Tx51-200, Tx151C, Tx200C

Lx400, Tft300-399

Lx150-200, Tft60-110

Tft155-250

Tft300-399

Wall Mount Bracket Top Tft300-399

Wall Mount Bracket Top Tft60-250

Grommet, Vinyl, 7/8” OD, 1/2" IPS (1020T)

Grommet, Vinyl, 3/4" IPS (1020)

Grommet, Vinyl, 1-3/8" OD (1300)

Grommet, Vinyl 1-1/4" IPS (1625) Tft155-250

Grommet, Vinyl 1-1/2" IPS (1875) Tft300-399

52

54

55

55

55

56

57

84653

84420

84582

84583

84581

83707

83724

Tft60-399 Air Switch Bracket

Tft60-399, VM110, VM110P Blocked Condensate Drain / Blocked Vent Switch

Lx300-400, Tft60-399 Wall Mount Bracket Bottom Lx300-400, Tft60-399

Tft60-399 Tft Touchscreen Upgrade Kit

(Models manufactured before 6/1/2012)

Lx150-800, Tft60-399

Tft60-399

Tft155-250

Tft300-399

Tft60-110

Display S7999D, Black Touch Screen (Models manufactured after 6/1/2012)

Terminal, Barrier, 2 Row, 8 Position

Control Panel Support Tft155-250



Ignition Coil Q652B1006/B Lx150-800, Tft60-399, Tx51-

200, Tx151C, Tx200C

Lx150-800, Tft60-399, Tx51-

200, Tx151C, Tx200C

Spark Igniter Wire 12"

58 82250 Lx150-800, Tft60-399, Ts80 Snap Bushing 1"

59 83592-1 (84015) Lx150-800, Tft60-399 Power Supply, White Touch Screen Only

60 82457 (83190) Lx150-400, M100(V), T150-

200, Tft60-399, Ti100-400,

Ts80

Transformer 24V, 40VA

61 77777

62 84590

63 84584

65 84421

67 83517

Tft60-399

Tft60-399

Tft60-399

Tft60-399

Honeywell Sola Controller R7910B1015/B Tft60-399

Control Panel Cover Tft60-399

Control Panel Tft60-399

Terminal, Barrier, 2 Row, 9 Position

Lx150-400, Tft60-399, Ts80 Fuse, 2A, 32V, Plug Style

85

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Item Part #

68

69

70

70

70

70

84192

83837

84586

84588

TBD

TBD

Models Description

Lx150-800, Tft60-399, Ts80 Fuse Holder, Panel Mount, 20A, 250VAC max

Lx150-800, Tft60-399, Ts80 Fuse, 7A, 250VAC, Barrel Style, Fast Blow

Tft60-399 Display Mounting Support, White Touch Screen Tft

(Models manufactured before 6/1/2012)

Tft60-399

Tft60-399

Display Cover, White Touch Screen Tft (Models manufactured before 6/1/2012)

Display Mounting Support, Black Touch Screen Tft

(Models manufactured after 6/1/2012)

Tft60-399 Display Cover, Black Touch Screen Tft (Models manufactured after 6/1/2012)

Outdoor Sensor 10K 71 81027-1 (83604) Lx150-800, M100(V), T150-

200, Tft60-399, Ti100-400,

Ts80, Tx51-200, Tx151C,

Tx200C

72 84578

72 84577

Tft300-399

Tft60-250

Front Cover Tft300-399

Front Cover Tft60-250

73 84571

73 84572

73 84570

74 84574

74 84575

Tft155-250

Tft300-399

Tft60-110

Tft155-250

Tft300-399

Right Side Tft155-250



Left Side Tft155-250

Left Side Tft300-399

74 84573

75 84564

75 84565

75 84563

76 84561

76 84562

76 84560

77 84569

77

78

78

79

79

80

80

80

TBD

84568

TBD

83962

83206

84576

TBD

TBD

81 84010

82 84579

82

83

84580

83135

85 84585

85 TBD

92 84472

92 84473

92 82869

93 84467

93 84468

93 84466

Tft60-110

Tft155-250

Tft300-399

Tft60-110

Tft155-250

Tft300-399 Top Panel Tft300-399

Tft60-110 Top Panel Tft60-110

Tft60-250, VM110, VM110P Bottom Heat Exchanger Support Tft60-250, VM110,

VM110P

Tft300-399 Bottom Heat Exchanger Support Tft300-399

Tft60-250, VM110, VM110P Top Heat Exchanger Support Tft60-250, VM110,

VM110P

Tft300-399 Top Heat Exchanger Support Set Tft300-399

Lx400, Tft300-399, Ti400

Lx150-300, M100, M100V,

T150-200, Tft60-250, Ti100-

200, Ts80, Tx200, Tx200C

Gas Valve Orifice O-Ring Lx400, Tft300-399

Gas Valve to Venturi Screws & Seal

Tft60-110

Tft155-250

Tft300-399

Lx150-800, Tft60-399

Tft155-250

Back/Bottom Tft60-110

Back Tft155-250

Back Tft300-399

System Sensor, Pipe Sensor Lx/Tft

Bottom Tft155-250

Tft300-399 Bottom Tft300-399

Tft60-399, VM110, VM110P Hose Clamp, 9/16 to 1-

1/16”

Tft60-110 Spark Generator Support Bracket, Tft60-110

Tft155-399

Tft155-250

Tft300-399

Tft60-110

Tft155-250

Tft300-399

Tft60-110

Left Side Tft60-110

Top Panel Access Cover Tft155-250



Top Panel Tft155-250

Spark Generator Support Bracket, Tft155-399

Brass Bushing, 1-1/4" x 3/4" Tft155-250

Brass Bushing, 1-1/2" x 3/4" Tft300-399

Brass Bushing, 1" x 3/4" Tft60-110

Brass Tee, 1-1/4" x 1/2" x 1-1/4" Tft155-250

Brass Tee, 1-1/2" x 1/2" x 1-1/2" Tft300-399

Brass Tee, 1" x 1/2" x 1" Tft60-110

86


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Item Part #

95 84095

105 82064

105 83016

107 84490

108 83991

108 83427

109 13701

110 84090

111 82616

111 83018

112 84492

112 84501

113 82782

113 84483

119 84471-1

Models

Lx500-800, Tft60-399, Ts80,

Tx51-200, Tx151C, Tx200C

Lx150-300, M100(V), T150-

200, Ti100-200, Tft60-250,

Ts80

Lx400, Tft300-399, Ti400

Lx500-800, Tft60-399

Lx150-200, M100(V), Tft60-

250, Ti100-200, Ts80

Lx300-600, Tft300-399

Lx150-400, M100(V), Tft60-

399, Ti100-400, Ts80, Tx51-

200, Tx151C, Tx200C

Lx150-400, M100(V), Tft60-

399, Ti100-400, Ts80, Tx51-

200

Lx150-200, M100(V), T150-

200, Tft60-250, Ti100-200,

Ts80, Tx51-200, Tx151C,

Tx200C

Lx300-600, Tft300-399,

Ti400

Lx150-300, M100(V), Tft60-

250, Ti100-200, Ts80,

Tx200, Tx200C

Tft300-399

Description

Plug, 7/8" Black Dome

Gas Valve Harness

Gas Valve Harness Lx/Ti400, Tft300-399

Switch, On-Off

CPVC Pipe 3", System 636, 5" Long

CPVC Pipe 4", System 636, 5" Long

Pressure Relief Valve, ASME, 3/4" NPT, 30psi

Pressure Gauge, Bottom Stem Mount, 60psi

Round Mesh Vent Screen, 3"

Round Mesh Vent Screen, 4" (300-600)

Natural Gas To LP Conversion Instructions (Included in 82650-1)

Natural Gas To LP Conversion Instructions (Included in 84471-1)

Conversion Decal (Included In 82650-1) Lx150-300, M100(V), Tft60-

250, Ti100-200, Ts80,

Tx200, Tx200C

Tft300-399

Tft300, Tft399

Conversion Decal (Included In 84471-1)

NG to LP Conversion Kit (Tft300-399)

87

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│


Visit us online

NY Thermal Inc. 30 Stonegate Dr. Saint John, NB E2H 0A4 Canada

Technical Assistance: 1-800-688-2575

Website: www.ntiboilers.com

Fax: 1-506-432-1135

88

Tft Series

NTI Tft60 - 399 Installation And Operation Instructions Manual

Trinity Tft

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boiler and to replace any part of the

ATTENTION: LIQUEFIED PETROLEUM (LP) PROPANE

IN THE STATE OF MASSACHUSETTS ONLY

boiler and to replace any part of the

Master Boiler

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