Installation Manual
Canadian Air Handler Installation and Operation Manual  9 
The above image is for representation purposes only; it is not a complete system. 
Please follow standard design protocols for installation. 
RETURN 
(Air Flows In) 
SUPPLY 
(Air Flows Out) 
Thermostat  
Supply  
Ductwork 
Return  
Ductwork 
Air Handler 
Rinnai Tankless 
Water Heater  
or Boiler 
Front 
Panel 
A call for heat from the 
thermostat activates the 
air handler 
            IMPORTANT 
Water Inlet  
Water Outlet  
Hot  
Cold 
Hot Water From 
Water Heater/Boiler 
into Air Handler 
Cold Water From  
Air Handler Returning 
to Water Heater/Boiler 
Example Vertical (Upflow with 
Side Return) Configuration 










