Installation and Operation Instructions Document 1252B
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Installation and Operation Instructions Document 1252B Installation and Operation Instructions for NEOTHERM ® Modulating Boiler Model NTH Sizes 080–850 MBTU/h Water Heater Model NTV Sizes 150–850 MBTU/h FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in hot water boiler and heater installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty. WARNING AVERTISSEMENT If the information in this manual is not Assurez-vous de bien suivres les instructions données dans cette notice pour réduire au followed exactly, a fire or explosion may minimum le risque d’incendie ou d’explosion result causing property damage, personal ou pour éviter tout dommage matériel, toute injury or loss of life. blessure ou la mort. Ne pas entreposer ni utiliser d’essence ni Do not store or use gasoline or other d’autres vapeurs ou liquides inflammables dans flammable vapors and liquids in the vicinity le voisinage de cet appareil ou de tout autre of this or any other appliance. appareil. WHAT TO DO IF YOU SMELL GAS QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ: • Do not try to light any appliance. • Ne pas tenter d’allumer d’appareils. • Do not touch any electrical switch; do not • Ne touchez à aucun interrupteur. Ne pas vous use any phone in your building. servir des téléphones dansle bâtiment où vous • Immediately call your gas supplier from a vous trouvez. nearby phone. Follow the gas supplier’s • Appelez immédiatement votre fournisseur de instructions. gaz depuis un voisin. Suivez les instructions du fournisseur. • If you cannot reach your gas supplier, call • Si vous ne pouvez rejoindre le fournisseur de the fire department. gaz, appelez le sservice des incendies. Installation and service must be performed L’installation et l’entretien doivent être assurés par by a qualified installer, service agency, or gas un installateur ou un service d’entretien qualifié ou supplier. par le fournisseur de gaz. H2355200B LAARS Heating Systems Table of Contents Section 1 - Section 6B - General Information Water Connections - NTV Water Heater 1.1 Introduction ....................................................... 1 6B.1 NTV Water Quality .......................................... 26 1.2 Model Identification ........................................... 1 6B.2 Piping Requirements ...................................... 26 1.3 Appliance Overview .......................................... 2 6B.3 Cold Water Make-Up ...................................... 27 1.4 Warranty ........................................................... 6 6B.4 Condensate Drain ........................................... 27 1.5 Unpacking ......................................................... 6 6B.5 Freeze Protection ........................................... 27 1.6 Dimensions ....................................................... 6 6B.6 NTV Suggested Piping Schematics ................ 27 6B.7 NTV Suggested Pumps .................................. 27 Section 2 - Locating the Appliance Section 7- 2.1 General Information .......................................... 8 The User Interface 2.2 Locating Appliance for Correct Vent Distance 7.1 About the User Interface ................................. 30 from Outside Wall or Roof Termination ............. 8 7.2 Navigating through the User Interface ............ 30 7.3 The Home Display .......................................... 31 Section 3 - 7.4 Customizing your Home Display .................... 31 Venting and Combustion Air 7.5 Entering/Changing Control Settings ............... 31 3.1 Combustion Air ................................................. 9 3.2 Venting ............................................................ 10 Section 8A - 3.3 Locating Vent & Combustion Air Terminals ..... 12 Quick Start Menu 3.4 Common Vent Test ......................................... 15 8A.1 Quick Start Menu ............................................ 35 Section 4 - Section 8B - Gas Supply and Piping Basic Installation and Wiring 4.1 Gas Supply and Piping ................................... 15 8B.1 Installation Warnings ...................................... 36 Section 5 - 8B.2 Main Power Connections ................................ 37 Pump Requirements 8B.3 Pump Connections and Operation ................. 37 5.1 NeoTherm Boiler Flow and Head Requirements ........................................ 16 Section 8C - 5.2 NeoTherm Water Heater Detailed Setup Instructions and Diagrams Flow and Head Requirements ........................ 16 8C.1 24 VAC Transformer with Integral Circuit Breaker ................................................ 38 Section 6A - 8C.2 Hydronic Heating Demand ............................. 38 Water Connections - NTH Boiler 8C.3 Anti-Short-Cycle ............................................. 38 8C.4 Outdoor Air Temperature Sensor .................... 38 6A.1 NTH System Piping: Hot Supply 8C.5 Outdoor Reset ................................................ 38 Connections .................................................... 17 8C.6 Warm Weather Shutdown ............................... 40 6A.2 NTH Cold Water Make-Up .............................. 17 8C.7 Domestic Hot Water........................................ 40 6A.3 Condensate Drain ........................................... 18 8C.8 Cascading Lead/ Lag Operation ..................... 42 6A.4 Freeze Protection ........................................... 18 8C.9 Hydronic Heating Using External 6A.5 NTH Suggested Piping Schematics ............... 18 Modulation Control ......................................... 45 8C.10 Optional Field Connections ............................ 46 6A.6 Recognized Chemicals ................................... 18 8C.11 Connections to a Building Automation System ........................... 46 8C.12 Ladder and Wiring Diagrams .......................... 47 i NEOTHERM Boilers and Water Heaters Section 9 - Section 12 - First Start-Up and Adjustment Instructions Replacement Parts 9.1 Filling the Boiler System ................................. 50 13.1 General Information ........................................ 60 9.2 First Operation ................................................ 50 13.2 Parts List ......................................................... 60 9.3 Adjusting the Differential and Manifold Pressure ........................................... 51 Appendices - 9.4 Shutting Down the NeoTherm Unit ................. 53 Appendix A - Software Control Functions .................... 71 9.5 Restarting the NeoTherm Unit ........................ 53 Appendix B - Error Messages...................................... 77 Section 10 - Maintenance 10.1 System Maintenance ...................................... 54 10.2 Appliance Maintenance and Component Description ...................................................... 54 10.3 Gas Conversion .............................................. 57 Section 11 - Operating Details and Troubleshooting 11.1 Normal Startup and Initialization ..................... 58 11.2 Sequence of Operation .................................. 58 11.3 Modulation Control ......................................... 58 11.4 Pump Control .................................................. 58 11.5 Anti-Short-Cycle ............................................. 59 11.6 Temperature Sensors ..................................... 59 11.7 Diagnostics ..................................................... 59 11.8 Error Codes .................................................... 59 ii LAARS Heating Systems NEOTHERM Boilers and Water Heaters Page 1 Section 1 - All installations must be made in accordance with 1) American National Standard Z223.1/NFPA54-Latest Edition GENERAL INFORMATION “National Fuel Gas Code” or 2) CSA B149.1 “Natural Gas and Propane Installation Code” and with the requirement of WARNING the local utility or other authorities having jurisdiction. Such NeoTherm units must be installed in accordance applicable requirements take precedence over the general with the procedures detailed in this manual, or the instructions contained herein. LAARS Heating Systems warranty will be voided. All electrical wiring is to be done in accordance with the local The installation must conform to the requirements codes, or in the absence of local codes, with: 1) The National of the local jurisdiction having authority, and, in the Electrical Code ANSI/NFPA No. 70-latest Edition, or 2) United States, to the latest edition of the National CSA STD. C22.1 “Canadian Electrical Code - Part 1”. This Fuel Gas Code, ANSI Z223.1/NFPA54. In Canada, appliance must be electrically grounded in accordance with the installation must conform to the latest edition these codes. of CSA B149.1 Natural Gas and Propane Gas Installation Code, and/or local codes. Where required by the authority having jurisdiction, the installation 1.2 Model Identification of NeoTherm boilers must conform to the Standard Consult the rating plate on the unit. The following information for Controls and Safety Devices for Automatically describes the model number structure. Fired Boilers, ANSI/ASME CSD-1. Any modifications to the boiler, its gas controls, or wiring may void the (1-2) Model Series Designation warranty. If field conditions require modifications, N T = NeoTherm consult the factory representative before initiating (3) Usage H = Hydronic such modifications. V = Volume Water (4-6) Size 1.1