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Laarsen Associates VW, PW, IW warranty With Vertical Tank With Horizontal Tank

Models: VW IW PW

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Page 11

Mighty Therm Volume Water Heater	Page 11

With

Vertical

Tank

With

Horizontal

Tank

NOTES:
Heavy line	indicates Heater to Tank Circulating Loop.

Figure 11. Hot Water Supply System (Model VW & PW).

Page 11

Image 11

Laarsen Associates IW warranty With Vertical Tank With Horizontal Tank, Hot Water Supply System Model VW & PW

Contents

Mighty Therm Installation and Operation Instructions forVolume Water Heaters Models VW, PW and IW Sizes TABLE OF CONTENTS 1B. Heater Identification SECTION General Information1A. Introduction 1C. Flow Requirements SECTION Installation2A. Heater Placement 2B. Installation of Indoor HeatersROOM INSTALLATION Figure 5. Installation on Concrete Blocks or TileFigure . Alcove Installation CLOSET INSTALLATIONEach Opening 2B-1.Combustion Air Supply2B-2.Venting HeaterTable 3. Gas Piping Sizes 2C. Installation of Outdoor HeatersFigure 7. Incorrect Outdoor Installation 2D. Gas Supply and PipingNatural Gas 2E. Electrical Wiring2F. Water Piping of System 2G. Water Expansion Model 2H. Pump Performance and InstallationModel Pipe SizeFigure 11. Hot Water Supply System Model VW & PW With Vertical Tank With Horizontal TankLAARS HEATING SYSTEMS Figure 13. Split System Piping Diagram, Model IW1.All water connections 2 N.P.T. models LAARS HEATING SYSTEMS With Horizontal TankWith Vertical Tank J - Circulating Pump for Return Loop B - Check Valve C - Check ValveD - Tempering Valve H - Throttling Valves in Building Loop Returns2I. Water Pressure SECTION Operation2J. Tank Installation 2K. Two-TemperatureSystem3B. Initial Start-Up 1. Start Up Boiler 3C. To Start Up SystemHi-LimitCheckout Indoor Models SECTION Maintenance3D. To Turn Off Heater 3E. To Shut Down SystemService Problems SECTION Troubleshooting and Analysis ofIII. WATER DRIPPING IN FIREBOX Key Description No NumbersOrder LAARS HEATING SYSTEMS2. Firing Mode H Temperature Control Wells Inlet/Outlet HeaderFigure 22. Parts Identification 1. Firing Mode L, K, & C 2 Dry WellsModel DescriptionModel ModelFigure 23. Tile Assemblies Mighty Therm Volume Water HeaterPage Model DescriptionModel ModelModel DescriptionModel ModelModel DescriptionModel ModelFigure 21. Outdoor Parts Mighty Therm Volume Water HeaterPage Model DescriptionModel ModelModel DescriptionModel ModelDescription Pump Rotating Sections and Repair PartsEnergy Management Monitor EM2 STANDARD COMPONENTS

With

NOTES:

Figure 11. Hot Water Supply System (Model VW & PW).