Rinnai EX22 User Manual

Rinnai Kiln

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FEATURES

EX22 (RHFE-558RWTA)

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; modular/mobile home approved; forced combustion,
forced convection

RHFE-558RWTA-N (Natural gas) RHFE-558RWTA-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

80.6% 81.0%

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, 47 watts

1/2 inch FNPT

Stainless steel inshot burners

Direct spark

Low: 110.5

High: 162.7

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

High (HI): maximum combustion

• Electronic 7 day, 28 event programmable set back thermostat

• Frost protection function allows a pre-set minimum room temperature

• Temperature limiting program to comply with Inside Design

Temperature limits

Enameled tray with capacity of 3 pints (1.3 liters)

Approximately 51 lbs (23 kg)

Side: 2 inches (50 mm)

Top: 10 inches (250 mm)

Front: 40 inches (1 m)

32 - 41 dB(A)

Bottom front louvers

© 2009 Rinnai Corporation

RHFE-558RWTA SP 7/2009

provides precise gas flow

detects temperature change in 1/2 of a degree

monitors and controls combustion fan

reduces noise through use of swept blades in convection fan; and
through the design of the combustion chamber and heat exchanger
which silently expand or contract due to temperature changes

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

Linear function modulation:

Negative coefficient thermistor:

Variable speed inducer motor:

Quiet operation:



Self diagnostic electronics:

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