Q175C Condensing Boiler
Standard Features
Optional Accessories
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Onboard outdoor reset control system with sensor standard
Prebuilt plumbing kit with insulated Low Loss Header
Priority DHW standard (3 way valve not included)
Domestic hot water plate warming
Built in DHW 6.6 gallon indirect tank
Modulating Ceramic premix burner
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RS100 Single zone controller
Flue Gas temperature sensor
Room Air Filter
NG to LP conversion Kit
LP to NG Conversion Kit
5:1 turn down ratio
Spark ignition
Exceeds SCAQMD 1146.2 Low NOx requirements
Stainless Steel Water tube condensing heat exchanger
Direct Vent sealed combustion
Concentric and twin pipe venting adapters included
Approved for room and closet installations
SPECIFICATIONS
General Specifications
Performance Specifications
Units
gal
Units
Water content
1.8
Fuel Type
NG/LP
175
Max. supply boiler
temperature
Input
MBH
MBH
%
°F
176
Heating Capacity
AFUE (I=B=R)
161
Max operating pressure
Relief valve rating
psi
MBH
psi
45
375
30
95.7
98.5
4.1
Part Load Efficiency (EN677)
DHW flow rate 75ºF ΔT
%
Relief valve pressure rating
Dry weight
Gpm
lbs
196
4.0"
10.5"
8.0"
14.0”
Min inlet gas pressure NG
Max inlet gas pressure NG
Min inlet gas pressure LP
Max inlet gas pressure LP
"W.C.
"W.C.
"W.C.
"W.C.
Electrical Specifications
Units
V/Hz
V
Electrical Voltage Mains
120/60
24
Electrical Voltage Controls
Max equivalent exhaust vent
length
ft
ft
80
80
Power Consumption Max Load
Power Consumption Stand by Load
Recommended Circuit breaker rating
W
210
14
Max equivalent combustion
air vent length
W
A
15
Polypropylene,
Stainless Steel,
PVC, CPVC
Approved venting materials
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.
Q175C SP
2/2011
© 2011 Rinnai Corporation
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