Rinnai KA2530FFUD User Manual
RC80i (KA2530FFUD)
Type of Appliance
Rinnai model number
Operation / Installation
Minimum/Maximum Gas Rate (Input)
Electrical
Electrical Consumption
Ignition System
Hot Water Capacity
Temperature
Temperature (without remote)
Approved Gas Types
Energy Factor (EF)
Service Connections
Isolation & Pressure Relief Valves Included
Condensing, Tankless, Temperature controlled, continuous flow,
gas hot water system, Energy Star Qualified
REU-KA2530FFUD-US
Forced combustion; indoor only
9,500 (Natural Gas), 10,300 (Propane) - 157,000 BTU/h
Appliance: AC 120 Volts - 60 Hz
Temperature Controller: DC 12 Volts
Normal: 63 w Standby: 2 w Anti-frost protection: 220 w
Direct electronic ignition
Minimum flow rate: 0.26 GPM
Minimum activation flow rate: 0.4 GPM
Maximum flow rate: 8.0 GPM
98° - 120° F (factory default) Maximum temperature is selectable at
120° F or at 140° F; 98° - 185° F available with the MCC-91
controller for commercial and hydronic applications
120° F (factory default) or 140° F
Natural or Propane (ensure unit matches gas type)
Natural Gas: 0.96 Propane: 0.96
Gas supply: 3/4 inch MNPT
Cold water inlet: 3/4 inch MNPT
Hot water outlet: 3/4 inch MNPT
Heavy duty forged brass Webstone Isolator valves EXP E2, certified
to NSF/ANSI 61-8 for potable water
Water Flow Control
Minimum/Maximum Water Supply Pressure
FLOW TABLE
10.0
9.0
8.0
7.0
6.0
5.0
4.0
Water Flow (gpm)
3.0
2.0
1.0
0.0
0 25 50 75 100 125 150
© 2011 Rinnai Corporation
RC80HPi-SP 2/2011
Water flow sensor, electronic water control and by-pass control
15 - 150 PSI (50 PSI or above is recommended for maximum flow)
delta T - Temperature Rise (ºF)
RC80i (KA2530FFUD)
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
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
• 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 2.9” 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.
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
Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-364-8643 • www.rinnai.us
WEIGHT: 63.9 lb (29 kg)
E
L
* This is the minimum
dimension from the wall.
The wall bracket is
adjustable to allow an
additional 1.57 inches (40
mm).
H
F
J
M
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) *
G
I
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)
From base to gas connection 1.6 (40.2)
From base to cold connection 2.0 (50.2)
K
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)
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