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Notes:
PLEASE NOTE FOR RESIDENTIAL
APPLICATIONS, THIS PIPING
ARRANGEMENT MAINTAINS FULL
WARRANTY :
10 Years On Heat Exchanger
5 Years On Parts
Commercial Application Warranty:
5 Years On Heat Exchanger
5 Years On Parts
Important: Install building return
line to the hot supply as close as
possible to the Rinnai Water
Heater.
Pump Should be Controlled by an
Aquastat, Timer or Combination
Aquastat and Timer. Pump to be sized
for Pressure Drop through Building
Supply and Return Piping. Pump to be
of Bronze or Stainless Construction.
3/4" Ball Valve
3/4" Union
Check Valve
Pressure Relief Valve
103 International Drive
Peachtree City, Georgia 30269
Rinnai Corporation
RECOMMENDED PIPING FOR CIRCULATION SYSTEMS
KEY
Pressure Regulator
Circulating Pump
Boiler Drain Valve
S
Solenoid Valve
1 Rinnai Water Heater with Electric Storage Tank
Rinnai
Water Heater
2-5 Gallon
Electric Water
Heater
120°F
Building Return (Not required to be 3/4" Line)
This is not an engineered drawing, it is intended only as a guide and
not as a replacement for professionally engineered project drawings.
This drawing is not intended to describe a complete system, it is up
to the contractor/engineer to determine the necessary components
for and configuration of the particular system being installed. The
drawing does not imply compliance with local building code
requirements. It is the engineer/contractor responsiblity to ensure
the installation is in accordance with all local building codes. Confer
with local building officials before installation.
RINNAI WATE R HEATERS
Domestic Hot Water - Circulation Systems
43
Rinnai
Equipment List
(Residential and
Commercial)
Rinnai
Water Heaters
(Indoor)
MC-91 Controller
(Included)
MC-100V and BC-100V
Controllers Optional
RIK-KIT (Optional)
(3/4" Fittings Include:
2 Unions, 2 Ball Valves,
2 Drain Valves and
1 Pressure Relief Valve.)
Minimum 3/4" Cold Water Supply Line
Building Supply
Building
Fixtures
V3237 Models
QTY
1
1
1
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