Rinnai R50LSI Manuel D’Utilisation

 

26 

VA Series Indoor LS Manual 

•  Vertical terminations must incorporate a condensate 

drain and trap as close as possible to the appliance. 

•  Slope any horizontal venting 1/4 inch per foot (19 

mm / m), towards the heater if the condensate 
collector is used, or towards the exhaust terminal if 
the condensate collector is not used. 

•  Dispose of condensate per local codes. 
•  The condensate trap must contain a minimum of 3 

inches (75 mm) of water. 

•  Rinnai LSi tankless water heaters have an 

integrated condensate collector. 

•  Rinnai offers a condensate trap.   
•  Regions of cold climate will create more condensate 

in the vent system.  The condensate collector 
should be used in cold climates. 

  Venting 

•  This water heater is a direct vent water heater and 

therefore is certified and listed with the vent 
system.  You must use vent components that are 
certified and listed with the water heater model. 

•  Do not combine vent components from different 

manufacturers. 

•  The vent system must vent directly to the outside 

of the building and use outside air for combustion. 

•  Every vent connection must be accessible for 

inspection, cleaning, and replacement. 

•  Venting should be as direct as possible with a 

minimum number of pipe fittings. 

•  Avoid dips or sags in horizontal vent runs by 

installing supports per the vent manufacturer’s 
instructions. 

•  Support horizontal vent runs every four feet and all 

vertical vent runs every six feet or in accordance 

with local codes. 

•  Vent diameter must not be reduced. 
•  Do not connect the venting system with an existing 

vent or chimney. 

•  Do not common vent with the vent pipe of any 

other water heater or appliance. 

•  Vent connections must be firmly pressed together 

so that the gaskets form an air tight seal. 

•  R50LSi, R75LSi, R94LSi:  The vent piece 

connected to the water heater must be secured 
with one self-tapping screw. 

•  Refer to the instructions of the vent system 

manufacturer for component assembly instructions. 

Condensate formation can occur in high efficiency 
direct vent appliances.  To prevent condensate 
damage follow these instructions. 

NOTICE 

Provisions must be made to prevent the condensate 
from entering the water heater.  Without proper 
drainage or disposal, condensate will damage the heat 
exchanger. 

     WARNING 

If the condensate collector is not used, the drain pipe 
must be capped to prevent exhaust gases and 
condensate from entering the building.  The cap is 
supplied on the appliance.