Rinnai EX22 User manual

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:

3 3/8" (85mm)
6 1/2" (165mm)
EX22 (RHFE-558RWTA)
Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: [phone] • www.rinnai.us
Safety Devices
Venting
Maximum Vent Length
Wall Thickness and
Flue Manifold Kits
(the “A” vent kit is included
with the appliance)
Warranty
• 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
Labor: 2 years; Parts: 5 years; Heat Exchanger: 10 years with years 6-10
prorated
DIMENSIONS
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.
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)