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restarts automatically when ignition or combustion fails 

starts and turns off the heater at 2 timer settings 

provides precise gas flow by operating from one to seven stages 

detects temperature change in 1/2 of a degree 

monitors and controls combustion fan and allows the appliance to 
overcome winds of up to 40 mph  

continually monitors functions; provides auto shutdown codes; indicates 
when air filter needs cleaning 

reduces noise through use of swept blades in convection fan; quiet 
expansion / contraction of parts due to temperature changes  

Restart capability: 

Timer Settings:

 

Seven-stage modulating gas valve: 

Negative coefficient thermistor:   

Variable speed inducer motor with 
pressure switch: 

Self diagnostic electronics: 

 
Quiet operation: 

EX22C (RHFE-559FTA)    

Type of Appliance 
 
 

Rinnai Model Number 

Gas Rate Input (BTU/hour) 
 

Gas Rate Output (BTU/hour) 
 

AFUE Rating 

Minimum Gas Supply Pressure 

Maximum Gas Supply Pressure 

Electrical Connection 

Gas Connection 

Combustion System 

Ignition System 

Fan CFM Output 

Temperature Settings 

 
 
Temperature Control 
 
 

Humidifier Tray 

Weight 

Clearance from Combustibles 

Noise Level 

Warm Air Outlet 

Direct vent wall furnace suitable for homes, apartments, and 
condominiums, residential or commercial setting; modular/mobile home 
approved; forced combustion, forced convection 

RHFE-559FTA-A-N (Natural gas)  RHFE-559FTA-A-P (Propane) 

Low - 8,200 

Low - 8,200   

 

 

High - 21,500 

High - 20,700 

Low - 6,560 

Low - 6,560 

High - 17,200 

High - 16,560 

81%  

82%  

3.5 in (89 mm) W.C. 

8 in (203 mm) W.C. 

10.5 in (267 mm) W.C  

13 in (330 mm) W.C. 

AC 120V, 60 Hz, 56 watts 

1/2 inch NPT 

Stainless steel Bunsen burners 

Electronic spark ignition 

Low: 110.5 

High: 162.7 

Low (LO): minimum combustion 
60° - 80° F in 2° increments  

 

High (HI): maximum combustion 

• 

Electronic thermostat 

• 

Temperature limiting program to comply with Inside Design 
Temperature limits 

Enameled tray with capacity of 2.1 pints (1000 cc) 

Approximately 57 lbs (26 kg) 

Side: 2 inches (50 mm), Top: 0 inches (0 mm), Front: 40 inches (1 m) 

33 - 42 dB(A) 

Bottom front louvers 

© 2010 Rinnai Corporation 

RHFE-559FTA SP                        6/2010 

FEATURES 

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