NTI TRX Series Installation, Start-up, Maintenance, Parts, Warranty

Also see for TRX Series: Manual Quick start guide

Contents

NTI TRX Series Installation, Start-up, Maintenance, Parts, Warranty Manual pdf 5 page image

5Table of ContentsPart 1 - General Safety Information 6A. Operation and Installation Warnings 6B. Improper Combustion 7C. Gas 7D. When Servicing the Boiler 7E. Boiler System 7F. CH and DHW Loop Water Chemistry Requirements 8G. Freeze Protection 8H. Water Temperature Adjustment and Scalding 9I. High Elevation Installations 9Part 2 - Before You Start 10A. What’s in the Box 10B. Optional Equipment 12Part 3 - Prepare the Boiler for Installation 13A. Locating the Boiler 13B. Leveling 14C. Clearances for Service Access 14D. Wall Mounting Considerations 14E. Wall Mounting Instructions 151. Mounting to a Wood Studded Wall 152. Mounting to a Metal Frame 15F. Residential Garage and Closet Installations 16G. Exhaust Vent and Intake Pipe 161. Direct Vent of Exhaust and Intake 162. Power Venting, Indoor Combustion Air in Confined or UnconfinedSpace 17H. Carbon Monoxide Detectors 17I. Prevent Combustion Air Contamination 17J. Removing a Boiler from a Common Vent System 18K. Technical Specifications 19Part 4 - Water Piping 24A. General Plumbing Information 24B. Backflow Preventer 24C. Expansion Tank 24D. Piping the Boiler 24E. Internal Circulation Pump 26F. By-Pass Valve 26G. CH and DHW Pressure Relief Valves 27H. Air Elimination Device 28I. Applications* 28H. Floor Drying Function 35Part 5 - Venting 36A. General 36B. Approved Materials for Exhaust Vent and Intake Pipe 37C. Additional Requirements for Installation in Canada 37D. Exhaust Vent and Intake Pipe Location 38E. Exhaust Vent and Intake Pipe Sizing 39F. Tightening Boiler Collar to Exhaust Vent and Intake Pipe 39G. Exhaust Vent and Intake Pipe Installation 40H. Applications 421. Direct Vent Installation of Exhaust and Intake 422. Venting Through an Existing System 483. Power Venting, Indoor Combustion Air in Confined or UnconfinedSpace 49Part 6 - Installing the Condensate Drain 50Part 7 - Connecting Electrical Service 51A. Wiring 511. Removing the Power Cord (To Hard Wire the Boiler) 522. Connecting Power (120V) for DHW and CH Circulators 533. Low Voltage Wiring Connections 534. Room Thermostat Wiring Connections 545. Outdoor Sensor Connections 546. Aquastat (Default) and Tank Sensor (Optional) Connections (BoilerModels) 54B. Internal Wiring Details 55Part 8 - Gas Connections 59A. Gas Pipe Sizing Tables 591. Gas Pipe Sizing 592. Natural Gas Pipe Sizing 593. LP (Liquid Propane) Gas Pipe Sizing 59B. Gas Connection Requirements 59C. Additional Precaution for Excess Flow Valve (EFV) 60D. Checking Gas Pressure at the Boiler for Proper Operation 60Part 9 - Controls 61A. Control and Display Overview 61B. Ignition Procedure 62C. Central Heating (CH) Temperature Adjustment 62D. Domestic Hot Water (DHW) Temperature Adjustment 62E. User Menu 63F. INFO Menu 64G. Date and Time 64H. Automatic CH Temperature Control (AUTO) 65I. Outdoor Heating Curve Slope 66J. Outdoor Heating Curve Parallel Shift 66K. Room temperature Day /Night(Only applicable when using NTI room sensor) 66L. Time programs – heating schedule(Only applicable when using NTI room sensor) 66M. Automatic summer / winter changeover 67N. Technical Menu(Complete Programming & Troubleshooting Menus) 68O. Boiler Control Menu Structure 69P. Complete Menu Parameters 70Part 10 - Start-Up Preparation 78A. Check / Control Water Chemistry 78B. Check for Gas Leaks 78C. Freeze Protection (When Used) 78D. System Water Fill, Purge, and Test 79E. Purge Air from DHW System 79F. Check Thermostat Circuit(s) 79G. Condensate Removal 79Part 11 - Start-Up 81A. First Ignition 81B. Combustion Checking Procedure 82C. Checking Combustion Parameters 84D. Converting the Appliance from Natural Gas to PropaneOperation 84Part 12 - Installation Checklist 85Part 13 - Troubleshooting 87A. Boiler Protection Devices 871. Blocking Error 872. Lockout Error 873. Malfunction Warning 87B. Boiler Error Codes 88Part 14 - Maintenance 92A. Procedures 92B. Maintenance That May be Performed by the User 92C. Maintenance Only to be Performed by a Qualified ServiceTechnician 93D. Replacing Components 97E. After Maintenance is Complete 100Part 15 - Maintenance Report 100Part 16 - Shutdown 102A. Shutdown Procedure 102B. Vacation Procedure 102C. Failure to Operate 102D. Important Notice 102Part 17 - Replacement Parts 103Maintenance Notes 114