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OME 412

 Instantaneous Water Heater 

                 

Installation Manual and Owner’s Guide 

 

 
 
 
 

 

          FOR YOUR SAFETY  

 

This product must be installed by a licensed 

professional technician or gas fitter 
qualified in water heater installation to 

comply with the laws of the Commonwealth 

of Massachusetts and/or any State.  
Check your local codes and regulation.  

This manual is correct as of the date of 
publication, but regulations are in continual 

change or update. Only your professional 
installer will be updated in regard to all 

local Codes pertaining to the installation of 

this water heater

 

                 Warning  

 

If the information and instructions in this 
manual is not followed exactly, a fire or   

explosion   is    possible, causing   property   
damage,   personal injury or death.  

   

              Warning   

 

Any Gas appliance creates flue gasses, 
carbon monoxide gas, which can cause 

serious injury or death. Improper 
installation, and/or operation, or installation 

by unqualified person, will void warranty.

  

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

your gas supplier.                                       

 
 

 
 

 

 
 

                     Suitable for  
              potable water heating  

                or space heating

    

                   

        Features     

*  Energy conservation, 

*  Endless hot water on demand, 
*  Compact, wall mount, space 

    saving, 

*  Computer controls for safety and  
     reliability,

    

*   Electronic ignition, no pilot light, 
*   The only Tank to Tankless  

     replacement kit available in the 

     market witch do not require  
     plumbing modification 

 
  

Summary of Contents for OME 412

Page 1: ...mation and instructions in this manual is not followed exactly a fire or explosion is possible causing property damage personal injury or death Warning Any Gas appliance creates flue gasses carbon mon...

Page 2: ...92 000 Btu Gas Connection NPT Water Connection 3 4 NPT Water pipes location On the top of the unit Water Pressure Min 19 psi Max 150 psi Recommended 55 psi Natural Gas Pressure Inlet Min 0 33 psi Max...

Page 3: ...sal The Discount tickets They are also 2 mounting brackets taped on the back of the unit Safety Talk 1 Always follow all local codes or in absence of local codes follow the actual edition of National...

Page 4: ...r heater 7 Operation OME 412 is a instantaneous thankless water heater designed to efficiently supply domestic hot water We combine the principle which is been around from the beginning of the 1900 wi...

Page 5: ...adiant temperature on any place on the unit is under 100 F so the possibility of Fire by contact is eliminated Freeze Prevention We see no reason to install your water heater outside OME 412 is been d...

Page 6: ...meter You can use your old flex hose if is sufficient long and at of list diameter Warning Your line has to have a pressure of minimum 0 33 PSI and the capacity to move a sufficient quantity of gas to...

Page 7: ...the water If the water is too cold your water volume is too big Need to reduce the overall water flow thru the unit to 12 liters per minute or until the temperature of the resulting water is acceptab...

Page 8: ...0 86 91 96 101 106 111 4 75 84 89 94 99 104 109 The result for Output temperature was reduced to 130 Degrees by the temperature safety devices anti scalding device included in the design of the unit T...

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