Table of Contents
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Trinity Tx
Model Numbers: Tx 51 - 200
Version Date: 2019-06-20
INSTALLATION AND OPERATION MANUAL
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 ............................................................................ 33
10.0 BOILER AND HEATING SYSTEM PIPING ................................................................... 36
11.0 DOMESTIC HOT WATER (DHW) PIPING - TX151C & TX200C (COMBI) ............... 47
12.0 FIELD WIRING ................................................................................................................. 49
13.0 CASCADE INSTRUCTIONS ............................................................................................ 52
14.0 WIRING SCHEMATICS ................................................................................................... 54
15.0 INSTALLATION CHECKLIST ........................................................................................ 56
16.0 ANNUAL MAINTENANCE AND INSPECTION ........................................................... 57
17.0 DISPLAY MENU GUIDE ................................................................................................. 59
18.0 TROUBLESHOOTING ..................................................................................................... 72
19.0 PARTS LIST ...................................................................................................................... 75
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.
unit may result in property damage, serious injury to occupants, or possibly death.
This Boiler must be installed by a licensed and trained Heating
Technician or the Warranty is Void. Failure to properly install this
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Summarization of Contents
HAZARD SYMBOLS AND DEFINITIONS
Danger Symbol
Defines the DANGER symbol indicating immediate hazardous situations leading to death or severe injury.
Warning Symbol
Defines the WARNING symbol indicating hazardous situations that could lead to death or severe injury.
Caution Symbol
Defines the CAUTION symbol indicating hazardous situations that could lead to minor or moderate injury.
Notice Symbol
Defines the NOTICE symbol indicating hazardous situations that could lead to property damage.
FOR YOUR SAFETY, READ BEFORE OPERATING
Operating Instructions
Step-by-step guide for safe boiler operation, including gas safety checks.
Turn Off Gas to Boiler
Procedure for safely shutting off gas supply to the boiler.
1.0 INTRODUCTION
General Installation Requirements
Outlines installation conformity to codes, standards, and manual requirements.
User Responsibilities
Defines owner's duties for boiler maintenance, inspection, and safety.
Installer Responsibilities
Defines installer's obligations for correct installation and owner notification.
ATTENTION: LIQUEFIED PETROLEUM (LP) PROPANE
Exhaust Vent / Air-Inlet Piping
Specifies requirements for venting system materials and air intake configurations.
IN THE STATE OF MASSACHUSETTS ONLY
Horizontal Venting Requirements
Details CO detector, signage, and inspection rules for horizontal venting installations.
Exemptions
Lists equipment exempt from Massachusetts venting and safety regulations.
Manufacturer Requirements - Venting System
Specifies manufacturer's responsibilities for providing venting system instructions and parts.
Installation Instruction Retention
Mandates keeping installation instructions with the appliance after installation.
2.0 SPECIFICATIONS
High Altitude Operation
Details de-rating requirements and adjustments for installations above 2000 ft.
3.0 BOILER LOCATION
Boiler Area Ventilation Air Openings
Specifies requirements for ventilation air openings in boiler areas to ensure proper airflow.
Closet Installations
Details clearances and ventilation requirements for installations within closets.
Alcove Installations
Details clearances and ventilation requirements for installations within alcoves.
Residential Garage Installations
Provides specific mounting instructions and safety considerations for garage installations.
Wall Mounting Installations
Refers to instructions for wall mounting the boiler unit using integrated brackets.
4.0 GENERAL VENTING
Removing Existing Boiler from Common Venting
Instructions for safely removing a boiler from a shared venting system.
Steps to Remove Existing Boiler
Step-by-step procedure for removing an old boiler from a common vent system.
Direct Vent Installation Best Practices
Best practices for direct vent installation to ensure safety and performance.
Indoor Combustion Air Installation
Requirements for using indoor air for combustion, adhering to NFPA 54/CSA B149.
Combustion Air-inlet Contamination
Lists sources to avoid for combustion air to prevent corrosion and heat exchanger damage.
Flammable Solvents and Plastic Piping
Safety precautions for using flammable solvents and plastic piping during vent installation.
Mandatory Pre-commissioning Procedure for Plastic Venting
Critical steps before operating the boiler with plastic venting systems.
Near Boiler Vent/Air-inlet Piping
Details connections for vent and air-inlet piping near the boiler, including material compatibility.
Vent/Air-inlet Pipe Length Determination
How to determine maximum vent and air-inlet pipe lengths based on model and elbows.
Termination Options – Direct Vent Installation
Describes various ways to terminate the vent system, including two-pipe and concentric.
Optional Termination Kits
Lists available factory kits for direct vent termination and their compatibility.
Sidewall Venting Options
Illustrates different sidewall vent termination configurations like two-pipe and concentric.
Roof Venting Options
Illustrates different roof vent termination configurations, including two-pipe and concentric.
Sidewall Termination Details
Provides detailed clearances and configurations for sidewall terminations, including IPEX and PolyPro.
Roof Termination Details
Provides detailed configurations for roof terminations, including two-pipe and concentric.
Venting Rules and Guidelines
Comprehensive list of rules for proper venting installation, including separation and sloping.
5.0 VENT/AIR-INLET TERMINATION CLEARANCES
Illustrations of Termination Clearances
Visual representation of termination clearance requirements from Table 5-1.
6.0 CONDENSATE DRAIN
Condensate Trap Installation Instructions
Step-by-step guide for installing the condensate trap assembly.
7.0 INSTALLING GAS PIPING
Installation
Covers general installation practices for gas piping, including conversion and pressure testing.
8.0 LIGHTING THE BOILER
Safety Before Operating
Critical safety information before operating the boiler, including gas leak checks.
Operating Instructions
Step-by-step guide for boiler operation, including ignition sequence.
Turn Off Gas to Boiler
Procedure to safely turn off the gas supply to the boiler.
Initial Start-Up
Detailed steps for the initial boiler start-up process, including de-air sequence and ignition trials.
Re-lighting Unit
Instructions for safely re-lighting the boiler if it goes out or requires restarting.
Turning Off the Boiler
Procedure for safely shutting down the boiler by setting thermostat and gas valve.
9.0 GAS VALVE AND BURNER SET-UP
Combustion Calibration Procedure
Steps for calibrating burner combustion using a CO2 analyzer.
Throttle Screw Adjustment
Instructions for adjusting the throttle screw for CO2 calibration at maximum modulation.
Offset Screw Adjustment
Instructions for adjusting the offset screw for CO2 calibration at minimum modulation.
Gas Line Pressure Test
Procedure for testing gas line pressure to ensure it falls within specified ranges.
10.0 BOILER AND HEATING SYSTEM PIPING
Boiler Water Requirements
Requirements for boiler water quality and treatment, including pH and conductivity.
Oxygen Elimination
Importance of removing oxygen from the heating system to prevent corrosion and failure.
Water Chemistry
Specifies acceptable water chemistry parameters for the heating system water.
Water Treatment
Procedures for treating boiler water and using antifreeze, including corrosion inhibitors.
Near Boiler Plumbing (Central Heating)
Instructions for installing components like pressure relief valve and gauge near the boiler.
Boiler System Plumbing
Guidelines for plumbing the boiler system, including flow rate requirements and configurations.
Circulating Pumps
Information on selecting and sizing circulating pumps based on flow rate and head loss.
Air Removal
Importance and methods for removing air from the heating system using vents and air-removal devices.
Expansion Tank
Guidelines for sizing and locating the expansion tank to manage system pressure.
Indirect Fired Water Heater
Details on installing an indirect fired water heater with the boiler, including plumbing configurations.
11.0 DOMESTIC HOT WATER (DHW) PIPING – Tx151C & Tx200C (COMBI)
DHW Description of Operation
Explains how the Combi boiler heats domestic hot water using its heat exchanger.
DHW Preheat Mode
Describes the function and operation of the DHW preheat feature for improved comfort.
DHW Plumbing (Tx-Combi)
Specific plumbing connections and components for DHW on Combi models, including filter and valves.
12.0 FIELD WIRING
Wiring Connections
General information on making field wiring connections to the boiler's junction box.
Controller Fuse (120VAC)
Details about the controller's 3.15A fuse and its function.
Blower Fuse (120VAC)
Details about the blower's 7A inline fuse and its function.
13.0 CASCADE INSTRUCTIONS
Communication Wiring
Instructions for wiring communication links (Argus Link) between boilers in a cascade system.
Establish Managing Boiler
Steps to designate and set up the managing boiler in a cascade system for control.
Plumbing for Cascades
Guidance on plumbing configuration for cascade systems, referencing pipe sizing.
System Sensor Installation
Details on installing and wiring the system sensor for cascade operation.
Outdoor Sensor Installation
Details on installing and wiring the outdoor sensor for cascade operation.
Boiler Pump Control
Information on boiler pump operation via the boiler controller in cascades.
CH Pump Control
Information on CH pump control via the managing boiler in cascades.
DHW Pump Control
Information on DHW pump control via the managing boiler in cascades.
Central Heat Demand Wiring
Wiring instructions for thermostats and zone controls in cascade systems.
Tank Thermostat / Sensor Wiring
Wiring instructions for tank sensors or thermostats in cascade DHW systems.
Boiler Address Assignment
How to assign unique addresses to boilers in a cascade system.
Rotation Interval Setting
Setting for boiler rotation in a cascade to distribute runtime.
Emergency Setpoint Setting
Setting for emergency operation temperature in cascades if communication is lost.
15.0 INSTALLATION CHECKLIST
Installation Tasks
Tasks to perform before initial start-up, ensuring all components are correctly installed.
Start-up Procedure
Steps for initial boiler start-up, including gas valve and thermostat settings.
Operational Checks
Checks to perform after the boiler is running, ensuring proper operation and safety.
Before Leaving Site
Final checks before leaving the installation site, verifying proper function and owner instructions.
Contractor Instructions
Guidance for the installing contractor regarding manual handover and warranty documentation.
16.0 ANNUAL MAINTENANCE AND INSPECTION
Annual Inspection Checklist
Checklist for annual inspection tasks, covering combustion, drains, and venting.
Combustion Chamber Cleaning Procedure
Step-by-step guide for cleaning the combustion chamber and associated components.
Cleaning Checklist Items
Specific items to check and clean during the combustion chamber maintenance process.
Refractory Ceramic Fibers (RFC) Safety
Safety information and handling instructions for Refractory Ceramic Fibers (RFC) in the combustion chamber.
Personal Protective Equipment (PPE)
Lists necessary Personal Protective Equipment (PPE) for handling RFC safely.
17.0 DISPLAY MENU GUIDE
Initial Power-up Sequence
Describes the boiler's behavior upon initial power-up, including the de-air sequence.
Main Screen Overview
Overview of the main display screen and its indicators for operating conditions.
User Menu Navigation
How to access and use the user menu for viewing boiler information and status.
Installer Menu Navigation
How to access and adjust installer settings for boiler configuration and troubleshooting.
Lockout & Error History
How to view lockout and error logs stored in the boiler controller's memory.
Lockouts Explained
Explanation of lockout indicators and procedures for clearing them.
Blocking Errors Explained
Explanation of blocking error indicators and procedures for resolution.
Fill – Low Water Pressure Error
Describes the 'FILL' error related to low water pressure and troubleshooting steps.
Controller Replacement Instructions
Steps for replacing the boiler controller, including setting the appliance type.
Appliance Type Setting
How to set the appliance type for a replacement controller to match the boiler model.
18.0 TROUBLESHOOTING
Servicing the Boiler Precautions
Safety precautions to follow when servicing the boiler, including power disconnection.
Diagnosing Inoperative Boiler
Steps for troubleshooting a boiler that is not operating, covering blank display and no heat.
DHW Not Hot Enough Troubleshooting
Troubleshooting steps for insufficient DHW temperature, checking setpoints and flow.
Error Code Interpretation
How to interpret and resolve error, lockout, and warning codes listed in Table 17-3.
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