Laarsen Associates IW, PW, VW warranty Mighty Therm

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Installation and Operation Instructions

Document 2040D

 

 

Installation and Operation

Instructions for

Mighty Therm

Volume Water Heaters

Models VW, PW and IW

Sizes 500-1825

These instructions are to be stored in the pocket provided on the boiler.

FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in hot water 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.

H0105000D

WARNING

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a nearby phone. Follow the gas supplier's instructions.

If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency, or gas supplier.

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Contents Mighty Therm Table of Contents 1A. Introduction General Information1B. Heater Identification 2A. Heater Placement Installation2B. Installation of Indoor Heaters 1C. Flow RequirementsInstallation on Concrete Blocks or Tile 2B-1. Combustion Air Supply 2D. Gas Supply and Piping 2C. Installation of Outdoor Heaters2F. Water Piping of System 2E. Electrical WiringPressure Relief Valve Location 2G. Water Expansion2H. Pump Performance and Installation Hot Water Supply System Model VW & PW With Vertical Tank HorizontalSplit System Piping Diagram, Model IW Dual Installation Piping Diagram, Model IW With Vertical Tank With Horizontal TankMighty Therm Volume Water Heater 2K. Two-Temperature System 2J. Tank InstallationOperation 2I. Water Pressure3B. Initial Start-Up Hi-Limit Checkout 3C. To Start Up System3D. To Turn Off Heater Maintenance3E. To Shut Down System Indoor ModelsHeater will not Fire Troubleshooting and Analysis Service ProblemsIII. Water Dripping Firebox Numbers Parts Identification Laars Heating Systems Tile Assemblies Ignition Control, Electronic Safety Gas Valve, On-Off Two Stage Nat Plug, 3/4, Sq. Hd Outdoor Parts See Parts Illustration On Outdoor Parts Descriptions and Order NumbersMighty Therm Volume Water Heater Optional Parts Descriptions and Order Numbers Pump Rotating Sections and Repair PartsEnergy Management Monitor EM2