Rinnai REU-KA2530FFUD-US User Manual
Page 2
RC80HPi (KA2530FFUD)
Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-364-8643 • www.rinnai.us
MC-91-1US (included)
Deluxe controller: MC-100V-1US (optional)
Bathroom controller: BC-100V-1US (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 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 2.9” W.C. low fire 0.70” W.C.
Propane Gas: high fire 3.7” W.C. low fire 1.06” 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, all circulating water flows through the
water heater and without an on-demand recirculation system). Refer to
the manual for complete warranty information.
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
WEIGHT: 63.9 lb (29 kg)
Controller
Controller Cable
Safety Devices
Clearances from Combustibles
* 24 inches required for serviceability
Clearances from Non-combustibles
* 24 inches required for serviceability
Min. / Max. Gas Supply Pressure
Manifold Gas Pressure (inches W.C.)
NOx
Warranty
DIM DESCRIPTION
in (mm)
A Width
18.5
(470)
B
Depth
10.5 (266.9) *
C
Height - Unit
26.4 (670)
D
Height - with brackets
28.5 (723.2)
E
Hot Water Outlet - from wall
4.3 (110) *
F
Hot Water Outlet - from center
3.9 (100)
G
Cold Water Inlet - from wall
2.9 (74.6) *
H
Cold Water Inlet - from center
1.1 (27.7)
I
Gas Connection - from wall
3.9 (99) *
J
Gas Connection - from center
4.1 (103.2)
K
From base to gas connection
1.6 (40.2)
From base to cold connection
2.0 (50.2)
From base to hot connection
1.6 (41.2)
L
Condensate Dain - from wall
5.2 (132.6) *
M Condensate Drain - from center
7.7 (195)
* This is the minimum
dimension from the wall.
The wall bracket is
adjustable to allow an
additional 1.57 inches (40
mm).
L E
M
F
H
J
G I