Rinnai Water Heater E85SRN Specifications
E85SR Condensing Boiler
Standard Features
Factory Installed Boiler/System Modulating Pump
Onboard Outdoor Reset Control System with Sensor Standard
Integrated Control for External Domestic Hot Water Indirect Tank
Modulating Ceramic Premix Burner
6.25:1 Turndown Ratio
Spark Ignition
Exceeds SCAQMD 1146.2 Low NO
Requirements
x
Stainless Steel Water Tube Condensing Heat Exchanger
Concentric Venting System
Twin Pipe Venting Adapters Included
Approved for Room and Closet Installations (Zero Clearance to
Combustibles)
SPECIFICATIONS
General Specifications
Water Content 0.9 GAL / 3.4 L
Max. Supply Boiler
Temperature
Max Operating Pressure 45 PSI / 310 kPa
Relief Valve Rating 375 MBH / 110 kWh
Relief Valve Pressure Rating 30 PSI / 207 kPa
Unit Weight 75 lbs / 34 kg
Min Inlet Gas Pressure NG 4.0" WC / 10.0 mbar
176 °F / 80 °C
Optional Accessories
RS100 Single Zone Controller
Flue Gas Temperature Sensor
Room Air Filter
Low Loss Header Plumbing Kit
Low Loss Header Side Mount Kit
DHW Indirect Tank Temperature Sensor
Performance Specifications
Fuel Types NG and LP
Input (Heating) 85 MBH / 24.9 kWh
Heating Capacity 78 MBH / 22.9 kWh
Input (DHW) N/A
Minimum Input
Turndown Ratio 6.25:1 / 2.3:1 TDR
NG: 13.6 MBH / 4.0 kWh
LP: 37.0 MBH / 10.9 kWh
Max Inlet Gas Pressure NG 10.5" WC / 26.2 mbar
Min Inlet Gas Pressure LP 8.0" WC / 19.9 mbar
Max Inlet Gas Pressure LP 13.5” WC / 33.6 mbar
Electrical Voltage Mains 120 V / 60 Hz
Electrical Voltage Controls 24 V
Power Consumption Max Load 145 W
Power Consumption Standby
Load
Recommended Circuit Breaker
Rating
Sound Level 39 dB
14 W
15 A
System Pump Model UPER 20-58
Max Head Pressure at Flow
Rate
AFUE 95.4%
DHW Flow Rate 75°F ΔT N/A
DHW Minimum Activation N/A
Flow Restrictor Color N/A
Max Equivalent Exhaust Vent
Length
Max Equivalent Combustion
Air Vent Length
Approved Venting Materials
7.3 ft at 5.0 GPM
2.2 m at 18.9 LPM
100 ft / 30.5 m
100 ft / 30.5 m
Polypropylene, Stainless Steel,
PVC, CPVC
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.
© 2017 Rinnai Corporation
E85SR-SP-2 8/2017
E85SR Condensing Boiler
DIMENSIONS
Connection for combustion
air supply and vent system
A Height
B Width 19.7” / 500 mm
C Depth 15.6” / 395 mm
D Left Side / Vent 13.2” / 335 mm
Center to Center / Vent and Air
E
Supply
F Back / Vent 10.6” / 270 mm
G Left Side / Gas Pipe 9.8” / 250 mm
H Left Side / Supply Pipe 5.9” / 150 mm
J Left Side / Return Pipe 13.8” / 350 mm
K Left Side / Condensate Pipe 15.9” / 405 mm
P Pipe Length of G 1” / 26 mm
Q Pipe Length of C 1.6” / 40 mm
S Back / Center of Pipe C 1” / 26 mm
Back / Center of Pipes F, G,
T
and R
Pipe Length Concentric Vent
V
and Air Supply
25.6” / 650 mm
4.7” / 120 mm
1.9” / 49 mm
7” / 177 mm
Additional Information:
If the boiler is to be installed in a system that utilizes zone
circulators and not zone valves a low loss header plumbing kit is
required to be installed.
If the pressure drop in the loop/system is greater than the
available head pressure from the boiler circulator a Low Loss Header Plumbing kit part number: 804000061 must be used.
If the boiler is installed in a system with zone valves and the con-
stant recirculation function is activated then a differential pressure
bypass valve or a low loss header plumbing kit is required to be
installed.
Shipping Specifications:
Clearances
Minimum required
Top 2” / 50 mm 10” / 250 mm
Back 0 0
Front 6” / 150 mm 24” / 600 mm
Left Side 2” / 50 mm 2” / 50 mm
Right Side 2” / 50 mm 2” / 50 mm
Floor / Ground 12” / 300 mm 12” / 300 mm
Vent 0 0
clearance to
combustibles and
non-combustibles
Recommended
service
clearances
Shipping Weight: 86 lbs (39 Kg)
Shipping Dimensions: 34” x 17” x 22” (86 cm x 44 cm x 55 cm)
Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-364-8643 • www.rinnai.us
© 2017 Rinnai Corporation
E85SR-SP-2 8/2017
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