Rinnai Water Heater E110CN, E75C, E110 Specifications
E75C / E110 Condensing Boiler
Standard Features
• Onboard outdoor reset control system with sensor standard
• Prebuilt plumbing kit with insulated Low Loss Header
• Priority DHW standard
• Built in DHW plate heat exchanger
• Domestic hot water plate warming
• Modulating Ceramic premix burner
• 5:1 turn down ratio
• Spark ignition
• Exceeds SCAQMD 1146.2 Low NO
• Stainless Steel Water tube condensing heat exchanger
• Direct Vent sealed combustion
• Concentric and twin pipe venting adapters included
• Approved for room and closet installations
requirements
x
SPECIFICATIONS
General Specifications
Boiler
Water content gal 0.9 1.3
Max. supply boiler
temperature
Max operating pressure psi 45 45
Relief valve rating MBH 375 375
Relief valve pressure rating psi 30 30
Dry weight lbs 91 101
Min inlet gas pressure NG "W.C. 4.0" 4.0"
Max inlet gas pressure NG "W.C. 10.5" 10.5"
Min inlet gas pressure LP "W.C. 8.0" 8.0"
Max inlet gas pressure LP "W.C. 14.0” 14.0”
Max equivalent exhaust
vent length
Max equivalent combustion
air vent length
Approved venting materials
Units
°F 176 176
ft 100 100
ft 100 100
Model
E75C E110C
Polypropylene,
Stainless Steel,
PVC, CPVC
Boiler
Model
Optional Accessories
• RS100 Single zone controller
• Flue Gas temperature sensor
• Room Air Filter
• NG to LP conversion Kit
• LP to NG Conversion Kit
Performance Specifications
Units
Fuel Type NG/LP NG/LP
Input MBH 75 110
Heating Capacity MBH 69 101
AFUE (I=B=R) % 96.5 96.1
Part Load Efficiency
(EN677)
DHW flow rate 75°F ΔT gpm 2.1 3.2
% 98.8 99.0
Boiler Model
E75C E110C
Electrical Specifications
Units
Electrical Voltage Mains V/Hz 120/60 120/60
Electrical Voltage Controls V 24 24
Power Consumption Max
Load
Power Consumption Stand
by Load
Recommended Circuit
breaker rating
W 145 145
W 14 14
A 15 15
Boiler Model
E75C E110C
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.
© 2011 Rinnai Corporation
E75C / E110C SP 2/2011
DIMENSIONS
E75C / E110C
A Height 25.6 / 650
B Height with expansion tank NA
C Width 19.7 / 500
D Depth 15.6 / 395
E Left side / vent 13.2 / 335
Center to center / vent and air
F
supply
G Back / vent 10.6 / 270
H Left side / gas pipe 9.8 / 250
J Left side / supply pipe 5.9 / 150
K Left side / return pipe 13.8 / 350
L Left side / condensate pipe 15.9 / 405
N Left side / cold water pipe 11.2 / 285
P Left side / hot water pipe 8.5 / 215
E75C E110C
inch / mm
34.3 /
870
4.7 / 120
2.0”
50mm
2.2”
55mm
5.6”
143mm
16”
406mm
4.7”
119 mm
5.2”
131mm
12.5”
319mm
14.2”
360mm
10.2”
260mm
229mm
16.4”
416mm
Q Pipe length of g 0.7 / 19
8.5 /
215
R Pipe length of c 1.6 / 40
S Pipe length of f, k, r, and w 2 / 50
Back / center of pipe c, k, and
T
w
6.3 /
160
1 / 26
U Back / Center of pipe f, g, and r 2 / 50
Pipe length vent co-axial
V
Pipe length vent parallel
3.7 / 95
7 / 177
Clearances
Minimum required
clearance to
combustibles and
non-combustibles
inch / mm
Top 2 / 50 10 / 250
Back 0 0
9”
Front 6 / 150 24 / 600
Left side 2 / 50 2 / 50
Right side 2 / 50 2 / 50
Floor / Ground 12 / 300 30 / 762
Vent 0 0
Recommended
service
clearances
inch / mm
Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-364-8643 • www.rinnai.us
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