NTI Trinity TX51 - Turning off the Boiler

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Tx I&O Manual │Lighting the Boiler

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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Table of Contents1
Hazard Symbols and Definitions1
Safety Information2
General Installation Requirements3
Introduction3
- Exhaust Vent / Air-Inlet Piping4
- High Altitude Operation6
Specifications6
- Minimum Clearances for Installation and Service7
- Closet Installations7
- Boiler Area Ventilation Air Openings7
Boiler Location7
- Wall Mounting Instructions9
- Direct Vent Installation10
- Indoor Combustion Air - Opening Size and Location10
- Outdoor Combustion Air – Opening Size and Location10
General Venting10
- One Permanent Opening Method11
- Mandatory Pre-Commissioning Procedure for Plastic Venting12
- Corrosive Products and Contaminant Sources12
- Flammable Solvents and Plastic Piping12
- Combustion Air-Inlet Contamination12
- Near Boiler Vent/Air-Inlet Piping13
- PVC/CPVC Piping13
- Stainless Steel Piping13
- Gasket Seating13
- Near Boiler Vent Connections (PVC/CPVC)14
- Near Boiler Vent Connections (Pps – Polypropylene)14
- Near Boiler Vent Connections (SS – Stainless Steel)15
- Vent/Air-Inlet Pipe Material16
- Vent/Air-Inlet Pipe Length Determination16
- Termination Options – Direct Vent Installation17
- Sidewall Venting Options – Direct Vent Installation18
- Concentric Termination (Sidewall)18
- Two-Pipe Termination (Sidewall)18
- Low Profile Termination (Sidewall)18
- Two-Pipe Termination (Roof)19
- Two-Pipe Termination (Roof-Exhaust / Sidewall-Inlet)19
- Concentric Termination (Roof)19
- Roof Venting Options – Direct Vent Installation19
- Sidewall Termination Details – Direct Vent Installation20
- IPEX Concentric Termination (Sidewall)20
- Low Profile Termination (IPEX Illustrated)20
- Polypro / Innoflue Wall Termination20
- Roof Termination Details – Direct Vent Installation21
- IPEX Concentric Termination (Roof)21
- Polypro / Innoflue Roof Termination21
- Exhaust Only Roof Termination21
- Venting Rules and Guidelines22
- Venting below Grade23
- Outdoor Venting23
- Existing Chimney Chase Way23
Vent/Air-Inlet Termination Clearances24
- Termination Clearance Quick Reference Diagram25
- Sidewall Termination25
- Removing an Existing Boiler from Common Venting System26
- Condensate Trap Installation Instructions27
Condensate Drain27
- Condensate Drain Piping28
- Natural to LP Propane Conversion Kit29
Installing Gas Piping29
Gas Line Connection30
Lighting the Boiler31
- Initial Start-Up32
- Re-Lighting Unit32
- Turning off the Boiler33
- Line Pressure and Combustion Parameters34
- Minimum and Maximum Modulation Rates34
- Gas Line Pressure34
Gas Valve and Burner Set-Up34
- Throttle / Input Screw Adjustments35
- Combustion Calibration35
- Flue Gas Analysis and Adjustment35
- Gas Valve and Venturi Assembly36
- Boiler Water37
- Oxygen Elimination37
- Boiler System Cleansers and Corrosion Inhibitors37
Boiler and Heating System Piping37
- Low Water Cutoff (LWCO)38
- Pressure Relief Valve38
- Anti-Freeze38
- Near Boiler Plumbing (Central Heating)38
- Near Boiler Piping (Central Heating – CH)39
- Boiler System Plumbing40
- Circulating Pumps40
- Minimum Flow Rate Requirements40
- System Major Component Checklist40
- Circulator and Pipe Size Requirements41
- Head Loss Curves41
- Expansion Tank42
- Air Removal42
- Configurations Using Either Single or Multi System Circulators43
- Indirect Fired Water Heater43
- Primary-Secondary Plumbing (Non-Combi)44
- Single System Circulator Configuration44
- Multiple System Circulator Configuratio45
- Primary-Secondary Plumbing (Combi)46
Domestic Hot Water (Dhw) Piping - Tx151C & Tx200C (Combi)48
- Throttling Valve49
- DHW Filter49
- Near Boiler DHW Piping49
- Instantaneous DHW (Without Storage Tank)49
- DHW Limitations50
- Preheat Mode50
- Procedure for Setting up Domestic Hot Water50
- DHW Maximum Flow Rates50
- Tx-Combi W/ DHW Storage Tank51
- Fuse (120VAC)52
- Wiring Terminal Access52
- Wiring Connections52
Field Wiring52
- Field Connections53
- Field Wiring Diagram54
- Cascade Plumbing Schematic55
- Communication Wiring55
- Establish Managing Boiler55
Cascade Instructions55
- Outdoor Sensor56
- Boiler Address56
- System Sensor56
- Minimum Pipe Sizes for Multiple Boiler Applications56
- Tx Connection Diagram57
Wiring Schematics57
- Tx Ladder-Logic Diagram58
- Start-Up59
- Operational Checklist59
- Instructions to Installing Contractor59
Installation Checklist59
- Cleaning Checklist60
- Combustion Chamber Cleaning Procedure60
Annual Maintenance and Inspection60
- Refractory Ceramic Fibers (RFC)61
- Initial Power-Up62
- Main Screen62
- De-Air Sequence62
Display Menu Guide62
- Control Console – Main Screen63
- User Menu Navigation63
- Installer Menu Navigation65
- Lockout & Error History68
- Blocking Errors69
- Lockouts69
- Lockout and Error Code Descriptions70
- Fill – Low Water Pressure70
- Blocking Error Navigation70
- Controller Replacement Instructions73
- Appliance Selection Method73
- Servicing the Boiler74
- Diagnosing an Inoperative Boiler74
Troubleshooting74
- Display Normal but DHW Is Not Hot Enough75
- Tx Fuse Location76
- Thermistor Resistance Vs. Temperature76
- Tx Heat Engine and Gas Train77
- Gas Valve & Blower Assembly View77
Parts List77
- Tx200 Gas Valve & Blower Assembly View78
- Tx Cabinet View78
- Tx Controls View79
- Electrical Housing, Controller, and Display Module View79
- Tx Installation Kit Box View79

NTI Trinity TX51 - Turning off the Boiler

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