CONDENSING BOILERS - E SERIES
Simply Smart Engineering
AN ECONOMICAL SOLUTION FOR HOME HEATING
The Refined E Series
The compact, wall-mounted design can be easily
installed as a retrofit application to replace traditional,
less efficient boilers, or provide simple, space-saving
solutions in a new construction project. These boilers
offer an on-board energy management system that
provides more consistent, comfortable heat, all while
saving energy.
PRODUCT FEATURES
Wide Range of Options
• Refined E Series includes 3 NEW heat-only models
(60 MBH, 85 MBH and 110 MBH),
as well as 3 combi models (50 MBH, 75 MBH and
110 MBH) sized to meet specific load demand
• Natural Gas and Propane models available
Engineered for Efficiency and Performance
• Awarded the ENERGY STAR® Most Efficient Mark
in 2016 – up 95.5% AFUE
• Self-cleaning Stainless Steel heat exchanger
with counter flow design increases condensing
operations even during full load
• Fully modulating boiler pump and modulating
fan standard on all models
• Outdoor reset sensor included
Easy to Install
• Flexible venting options with approved Concentric,
PVC, CPVC, Stainless Steel, Polypropylene (rigid
and flex), for single-pipe exhaust, room air and
two-pipe systems (vertical or side-wall termination)
• Small single-zone applications can be directly
connected to the boiler, with no primary secondary
piping required
• Multi-zone and multi-temp applications can be
piped using primary secondary piping or any LLH,
per installer preference parts and complexity
E Series Condensing Boilers
3
EASE OF INSTALLATION AND SERVICEABILITY.
• Plug-and-play wiring with color-coded terminal strip and connectors
➊Gas valve
➋Fan
➌Exhaust/Intake
➍Stainless Steel
Heat Exchanger
➎DHW Plate Heat
Exchanger
➏Boiler Pump
➐Three-Way Motorized
Valve Allows Combi
Boiler to Switch
Between Heating
and DHW
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• On-board, 6-button control with intuitive display of boiler temperature, pressure and other sequence of operation information, making servicing
and commissioning easier
1
• Quarter-turn locking pins allow easy access to condensate collector and
burner cassette, tool-less igniter/electrode inspection and/or replacement; 2-year, 4,000-hour visual inspection and 4-year, 8,000-hour service interval
4
5
• Easy access from front, left and right sides to all serviceable components
6
• Installation flexibility allows venting up to a total of 100 feet (concentric
or two-pipe)
7
• Common components and sensors across all Rinnai boilers reduce
spare parts and complexity
E SERIES CONDENSING BOILERS
COMBI MODELS
Models
E50CR
Dimensions - w, h, d
Inches (mm)
Weight* (lbs/kg)
HEAT ONLY MODELS
E75CR
E110CR
E60SR
19.7 x 25.6 x 15.6 (500 x 650 x 395)
85 lbs (39 kg)
85 lbs (39 kg)
E85SR
E110SR
19.7 x 25.6 x 15.6 (500 x 650 x 395)
99 lbs (45 kg)
79 lbs (36 kg)
79 lbs (36 kg)
92 lbs (42 kg)
Fuel Type
NG, field
convertible
Max. Heating Capacity (MBH)
48 (14 kW)
72 (21 kW)
106 (31 kW)
57 (17 kW)
82 (24 kW)
106 (31 kW))
Min. Input (MBH)
13.6 (4 kW)
13.6-NG / 37-LP
(4 kW-NG /
11 kW-LP)
26-NG / 59-LP
(8 kW-NG /
17 kW-LP)
13.6-NG / 37-LP
(4 kW-NG /
11 kW-LP)
13.6-NG / 37-LP
(4 kW-NG /
11 kW-LP)
26-NG / 59-LP
(8 kW-NG /
17 kW-LP)
Max. Input (MBH-DHW)
85 (25 kW)
85 (25 kW)
130 (38 kW)
Max. Input (MBH-Heating)
50 (15 kW)
75 (22 kW)
110 (32 kW)
60 (18 kW)
85 (25 kW)
110 (32 kW)
3.7:1
5.5:1
4.2:1
4.4:1
6.3:1
4.2:1
Turn Down Ratio (NG)
DHW Activation Rate
GPM (LPM)
NG or LP, field convertible
NG or LP, field convertible
N/A
0.5 GPM (2 LPM)
N/A
Max. DHW ΔT @ 75° F (41° C)
2.1 GPM (8.0 LPM)
2.1 GPM (8.0 LPM)
3.2 GPM (12.2 LPM)
N/A
Max. DHW ΔT @ 60° F (33° C)**
2.6 GPM (9.9 LPM)
2.6 GPM (9.9 LPM)
4.0 GPM (15.2 LPM)
N/A
Max. DHW ΔT @ 45° F (25° C)**
3.5 GPM (13.3 LPM)
3.5 GPM (13.3 LPM)
5.4 GPM (20.5 LPM)
N/A
95.6%
95.5%
95.5%
AFUE Rating
Circulating Pump
Approved Venting Material
Warranty†
Certifications
† For complete information and details regarding Rinnai’s
warranty, visit rinnai.us.
* Dry weight
** With mixing valve
95.5%
95.4%
95.5%
Modulating
Polyproplyene, Stainless Steel, PVC, CPVC
Standard Warranty (some restrictions apply): Residential: 12-year heat exchanger, 2-year parts, 1-year labor.
Commercial: 5-year heat exchanger, 2-year parts, 1-year labor.
ENERGY STAR®, CSA, NB, ASME H, SCAQMD, Low Lead
BENEFITS OF A MODULATING BOILER PUMP
• More adaptive system matching for more forgiving installation (ease of pump matching)
• Reduce electrical use
• Optimize water flow through radiators
• Improve boiler efficiency
• Increase pump and zone valve life
• Reduce pump noise
Rinnai America Corporation • 103 International Drive, Peachtree City, GA 30269
Phone: 678-829-1700 • rinnai.us
©2016 Rinnai America Corporation. Rinnai is continually updating and improving products; therefore, specifications are subject to change
without prior notice. Local, state, provincial, federal and national fuel gas codes must be adhered to prior to and upon installation.