Laars Mascot II Installation And Operation Instructions Manual

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LAARS Heating SystemsPage 4SECTION 1.General InformationWARNINGMascot II units must be installed in accordance withthe procedures detailed in this manual, or the LAARSHeating Systems warranty will be voided. Theinstallation must conform to the requirements of thelocal jurisdiction having authority, and, in the UnitedStates, to the latest edition of the National Fuel GasCode, ANSI Z223.1/NFPA54. In Canada, theinstallation must conform to the latest edition of CSAB149.1 Natural Gas and Propane Gas InstallationCode, and/or local codes. Where required by theauthority having jurisdiction, the installation of MascotII boilers must conform to the Standard for Controlsand Safety Devices for Automatically Fired Boilers,ANSI/ASME CSD-1. Any modifications to the boiler,its gas controls, or wiring may void the warranty. Iffield conditions require modifications, consult thefactory representative before initiating suchmodifications.1.1 IntroductionThis manual provides information necessary forthe installation, operation, and maintenance of LAARSHeating Systems Mascot II appliances. Read it carefullybefore installation.All application and installation procedures shouldbe reviewed completely before proceeding with theinstallation. Consult the LAARS Heating Systemsfactory, or local factory representative, with anyproblems or questions regarding this equipment.Experience has shown that most operating problems arecaused by improper installation.Mascot II is protected against over pressurization.A pressure relief valve is included with each Mascot II.The PRV should be installed prior to filling the system.Refer to Figures 1 and 2 for PRV locations.IMPORTANT: The inlet gas pressure to the appliancemust not exceed 13" W.C. (3.2kPa).All installations must be made in accordance with1) American National Standard Z223.1/NFPA54-LatestEdition “National Fuel Gas Code” or 2) CSA B149.1“Natural Gas and Propane Installation Code” and withthe requirement of the local utility or other authoritieshaving jurisdiction. Such applicable requirements takeprecedence over the general instructions contained herein.All electrical wiring is to be done in accordancewith the local codes, or in the absence of local codes,with: 1) The National Electrical Code ANSI/NFPA No.70-latest Edition, or 2) CSA STD. C22.1 “CanadianElectrical Code - Part 1”. This appliance must beelectrically grounded in accordance with these codes.1.2 Model IdentificationConsult the rating plate on the unit. The followinginformation describes the model number structure.(1-2) Model Series DesignationL M = Mascot II(3) UsageH = Modulating BoilerC = Combination Boiler and Water Heater(4-6) Size1 2 5 = 125,000 BTU/hr input(7) FuelN = Natural GasP = LP Gas(8) AltitudeA = 0-10,000 Feet(9) Revision1 = First version(10) Options CodeX = No Options(11) Pump OptionsX = Std Pump1.3 Appliance OverviewSee Figure 2.1.4 WarrantyLAARS Heating Systems’ Mascot II appliancesare covered by a limited warranty. The owner shouldcomplete the warranty registration at www.Laars.com.All warranty claims must be made to an authorizedLAARS Heating Systems representative. Claims mustModel Nomenclature1 2 3 4 5 6 7 8 9 10 11L M 1 2 5 A 1 X XSERIESL MUSAGEH - HYDRONICC - COMBIUNITSIZEMBTU/h1 2 5FUELN - NATURALP - PROPANEALTITUDEA - 0-10,000 FEETREVISION1 - FIRSTOPTIONSX - NONEPUMPX - STANDARD