Rinnai R75LSI User Manual
R75LSi (VA2528FFUD)
Type of Appliance
Rinnai Model Number
Operation / Exhaust System
Minimum/Maximum Gas Rate (Input)
Electrical
Electrical Consumption
Ignition System
Hot Water Capacity
Temperature
Temperature (without remote)
Approved Gas Types
Installation
Energy Factor
Thermal Efficiency
Temperature controlled, continuous flow, gas hot water system
REU-VA2528FFUD(A)-UC
Forced combustion / Direct vent
15,000 - 180,000 BTU/h (Natural Gas and Propane)
Appliance: AC 120 Volts - 60 Hz
Controller: DC 12 Volts
Normal 65 watts
Standby 2.0 watts
Anti-frost protection 100 watts
Direct electronic ignition
0.6 to 7.5 GPM (35° F rise)
98° - 120° F (factory default) Maximum temperature is selectable at
120° F or at 140° F; 98° - 160° F available with the MCC-91
controller for commercial and hydronic applications
120° F (factory default)
Natural or Propane (ensure unit matches gas type)
Indoor only
Natural Gas: 0.82 Propane: 0.82
Natural Gas: 84% Propa ne: 84%
Service Connections
Water Flow Control
Minimum/Maximum Water Supply Pressure
FLOW TABLE
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
Water Flow (gpm)
0.0
0 25 50 75 100 125 150
Gas supply: 3/4 inch MNPT
Cold water inlet: 3/4 inch MNPT
Hot water outlet: 3/4 inch MNPT
Water flow sensor, electronic water control device and fixed by-pass
20 - 150 PSI (recommended 30-80 PSI for maximum performance)
delta T - Temperature Rise (ºF)
© 2008 Rinnai Corporation
R75LSi SP 8/2008
)
R75LSi (VA2528FFUD)
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
• 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
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)
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
14 (355.6)
9.6 (244.5)
WEIGHT: 50 LBS (23 KG)
in (mm)
22.9 (582)
25.5 (648 .2)
3.6 (91)
1.1 (27)
4.3 (110)
3.5 (89)
The wall bracket is adjustable to allow
an additional 1.57 inches (40 mm).
Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-364-8643 • www.rinnai.us
2.8 (70)
3.9 (99
Loading...