Rinnai EX22 User Manual

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

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

Humidifier Tray Weight Clearance from Combustibles

Noise Level Warm Air Outlet

FEATURES

Linear function modulation: Negative coefficient thermistor: Variable speed inducer motor: Quiet operation:

Self diagnostic electronics:

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

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

RHFE-558RWTA SP 7/2009

EX22 (RHFE-558RWTA)

Safety Devices

Venting Maximum Vent Length Wall Thickness and

Flue Manifold Kits

(the “A” vent kit is included with the appliance)

• Flame rod detects flame failure; results in auto shutdown to prevent escape of gas

• Bi-metal switch, thermal fuse, and thermistor detect overheat condition; results in auto shutdown

• 3 amp fuse protects against power surge; results in auto shutdown

• Abnormal spark at time of ignition results in auto shutdown

• Combustion fan purges any gas from the combustion chamber before

ignition

• Convection fan continues to run after burner shutdown to cool internal parts

• Function lock prevents inadvertent operation

• Appliance shuts down if room reaches 104° F (40° C)

concentric; 3 1/8 inch (80 mm) wall hole 13 feet (4 m) with a maximum of 2 bends; maximum 8 feet (2.4 m) vertically

Name Kit No. fits walls

S Vent Kit FOT-150 3 - 4 1/2 in (75 - 115 mm) A Vent Kit FOT-151 4 1/2 - 9 1/2 in (115 - 240 mm) B Vent Kit FOT-152 9 1/2 - 15 3/4 in (240 - 400mm) C Vent Kit FOT-153 15 3/4 - 23 5/ 8 in (400 - 600 mm) D Vent Kit FOT-154 23 5/8 - 31 1/ 2 in (600 - 800 mm)

Warranty

Rinnai is continually updating and improving products; therefore, specifications are subject to change without prior notice. Local, state, provincial and federal codes must be adhered to prior to installation.

DIMENSIONS

Labor: 2 years; Parts: 5 years; Heat Exchanger: 10 years with years 6-10 prorated

6 1/2" ( 165m m )

3 3/8" ( 85m m )

Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-829-1666 • www.rinnai.us