Rinnai R75LSI (VA2528FFUD) Leaflet

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R75LSi (VA2528FFUD)    
Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-364-8643 • www.rinnai.us 
Water Temperature Control 
Controller 
 
 
 
 
Controller Cable 
Safety Devices 
 
 
 
Clearances from Combustibles 
(suitable for closet, attic, and 
crawl space installations) 
Clearances from Non-combustibles 
 
 
Min. / Max.  Gas Supply Pressure 
 
Manifold Gas Pressure (inches W.C.) 
 
NOx 
Warranty 
Simulation feed forward and feedback 
MC-91-1US (part of the front panel) 
Deluxe controller: MC-100V-1US (optional) 
Bathroom controller: BC-100V-1US (optional) 
Wireless controller: MC-502RC-1US-MS (optional) 
MCC-91-1US (for commercial applications) 
Non-polarized two-core cable, minimum 22 AWG 
•  Flame failure - Flame Rod 
•  Boiling protection 
•  Combustion fan rpm check 
•  Over current - glass fuse (3 amp) 
•  Top of heater - 6 inches 
•  Front of heater - 6 inches 
•  Sides of heater - 2 inches 
•  Top of heater - 2 inches 
•  Front of heater - 6 inches 
•  Sides of heater - 1/2 inch 
Natural Gas:  min 5”  W.C. 
max 10.5”  W.C. 
Propane Gas:  min 8”  W.C. 
max 13.5”  W.C. 
Natural Gas:  high fire 2.7”  W.C. 
low fire 0.52”  W.C.  
Propane Gas:  high fire 4.4”  W.C.  
low fire 0.92”  W.C. 
Meets California and Texas NOx Emission Rules 
Heat exchanger: 12 years* for residential and 5 years* for 
commercial and hydronic applications; (10 years* if used with the 
Rinnai Hydronic Air Handler); all other parts 5 years*; labor 1 year; 
(* 3 years if used as a circulating water heater within a circulation 
loop, when the water heater is in series with a circulation system 
and all circulating water flows through the water heater) 
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. 
•  Remaining flame (OHS) 
•  Thermal fuse 
•  Automatic frost protection 
 
•  Back of heater - 0 inches 
•  Bottom of heater - 12 inches 
•  From vent pipe - 0 inches 
•  Back of heater - 0 inches 
•  Bottom of heater - 12 inches 
•  From vent pipe - 0 inches 
The wall bracket is adjustable to allow 
an additional 1.57 inches (40 mm). 
in (mm) 
WEIGHT: 50 LBS (23 KG)