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4

exit. For best safety, always install 

gas appliances out of the reach of 
the children’s. 

 
 

7

 

WARNING:  Do not use this 

unit if ANY part was under water. 

Immediately call a certified or 

trained technician to inspect and 
service the unit as necessary. 

8

 

Do not open the unit if gas, 
water and electrical is not 

disconnected. Severe burns, 
scalding or even death can occur if 

the unit is not cold to thatch before 

opening. 

9

 

If any repairs where attempted by 

an untrained personal, the warranty 
is void.  

10

 

Do not reverse gas with water 

pipes. Severe damages to the unit, 
other appliances on the house and 

your Gas line system will occur. 

11

 

Do not reverse cold and hot water 

pipes. Severe damages to the unit 

will occur and  warranty will be void 

12

 

Follow the diagram bellow when 

you install your OME 412 water 
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’ 
with today technical know how, and we ad 

every safety we could think about to give 
you the ultimate in domestic water 

heating. 

When you open the hot water faucet, the 
computer sensors detect the 

depressurization of the line and command 
the gas valve and the ignition relay control 

the commencing of the burning cycle. 

A minimum of 0.6 Gallons per minute is 
required to ignite, but only 0.4 gallons per 

minute to maintain the burners on. 
During the operation, the computer 

monitor and adjust the temperature and 

flow of the water and gas, to insure the 
total burning of your fuel. 

As long as your gas, water and unit is on, 
just by opening of your faucet you will 

have an endless supply of hot water.  

      
-To turn your water heater on
, just 

open your faucet. 
     

 -To turn your water heater off, just 

close your faucet.  
 

 

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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