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Operation / Installation Manual
Operation / Installation Manual
To Suit Models:
(Residential and Commercial for indoor and outdoor unit)
ANS Z21.10.3 CSA 4.3
WARNING: If the information in these instructions is not followed
exactly, a fire or explosion may result causing property damage,
personal injury or death.
Do not store or use gasoline or other ammable vapors and
liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
Do not try to light any appliance.
Do not touch any electrical switch; do not use any phone in
your building.
Immediately call your gas supplier from a neighbor's phone.
Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the re department.
Installation and service must be performed by a qualied installer,
service agency or the gas supplier.
REU-V3237FFU
REU-V3237FFUC
REU-V3237W
REU-V3237WC
REU-V3237FFU-ASME
REU-V3237FFUC-ASME
REU-V3237W-ASME
REU-V3237WC-ASME
R98i
R98e
C98e
C98i 2
Rinnai Corporation
V3237 Models
C O N T E N T S
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Specications
Limited Warranty
Owners Installation Information
Features of Your New Water Heater
Safety Considerations
Basic Operation
General Controller Information
Remote Controller Operation
Deluxe Controllers
Controllers Set Pattern/Temperature Tables
Error Messages
Maintenance & Service Information
Trouble Shooting and Common Questions
For Your Safety Read Before Operating
Operating Instructions
Care & Lime Condition Warning
Installers Instructions
Notes
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Rinnai Corporation
V3237 Models
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Efficiency
Rating
Electrical
Consumption
Minimum
Gas Supply
Pressure
Maximum
Gas Supply
Pressure
Model
V3237FFU
V3237FFUC
V3237W
V3237WC
Minimum Gas Consumption Btu/h
Maximum Gas Consumption Btu/h
Hot water capacity, (50°F rise)
Hot water capacity, (35°F rise)
Factory TemperatureSetting (no Controller)
Default Controller Temperature Setting
Maximum Temperature Setting
Minimum Temperature Setting
Weight
Natural Gas
Propane
Noise level
Normal
Standby (1 controller ON)
Anti-frost Protection
By-Pass Control
Natural Gas
Propane
Natural Gas
Propane
Type of Appliance
Operation
Exhaust System
Approved Gas Type
Service Connections
Ignition System
Electric Connections
Water Temperature Control
Water Supply Pressure
Maximum Water Supply Pressure
Remote Control Cable
Safety Devices
140°F
140°F
185°F
120°F
104°F
140°F
140°F
140°F
185°F
120°F
104°F
140°F
80 84 99
watts
82 85 72
watts
19,000
237,000
0.6 to 8.0 GPM
0.9 to 9.8 GPM
98°F
55 Lbs.
49 dB (A)
2 watts
116 watts
Electronic
6" W.C.
10" W.C.
10.5" W.C.
13.5" W.C.
Temperature controlled continuous flow gas hot water system.
With or without remote controls, mounted in kitchen, bathroom, etc.
Direct Vent - Forced Combustion
Natural Gas or Propane - Ensure unit matches gas type it's being installed on.
Gas Supply: 3/4" MNPT, Cold Water Inlet: 3/4" MNPT, Hot Water Outlet: 3/4" MNPT
Direct Electronic Ignition
Appliance: AC 120 Volts, 60Hz. Remote Control: DC 12 Volts (Digital)
Simulation Feedforward and Feedback.
Minimum Water Pressure: 15 PSI (Recommended 30-80 PSI for maximum performance)
150 PSI
Non-Polarized Two Core Cable
Flame Failure - Flame Rod
Boiling Protection - 210°F
207°F Bi-Metal Switch Over Heat Temperature Protection
Thermal Fuse 264°F
Automatic Frost Protection - Bi-Metal Sensor & Anti-Frost Heaters
Combustion Fan RPM Check - Integrated Circuit
Over Current - Glass Fuse (3 amp)
Rinnai is continually updating and improving products, therefore, specications are
subject to change without prior notice. Local, state, provincial and federal codes must
be adhered to prior to installation.
Unless otherwise indicated model designations include both non-ASME and ASME models 4
Rinnai Corporation
V3237 Models
LIMITED WARRANTY
Rinnai Water Heater
WHAT IS COVERED?
This Warranty covers any defects in materials or workmanship when the product is installed and
operated according to Rinnai written installation instructions, subject to the terms within this limited
warranty document. This Warranty applies only to products that are installed by a state qualied
or licensed contractor. Improper installation may void this Warranty. Rinnai strongly suggests
that you use an installer who has attended a Rinnai product knowledge class before installing
this water heater. This Warranty extends to the original purchaser and subsequent owners, but
only while the product remains at the site of the original installation. This Warranty only extends
through the rst installation of the product and terminates if the product is moved or reinstalled at
a new location.
HOW LONG DOES COVERAGE LAST?
*Important
Period of coverage is 3 years from date of purchase when used as a circulating water heater
within a hot water circulation loop, when the water heater is in series with a circulation system and
all circulating water ows through the water heater.
WHAT WILL RINNAI DO?
Rinnai will repair or replace the product or any part or component that is defective in materials
or workmanship, except as set forth below: Rinnai will pay reasonable labor and shipping costs
to repair the product. All repairs must be performed using genuine Rinnai parts. All repairs or
replacements must be performed by an individual or servicing company that is state qualied or
licensed to do this type of repair.
Replacement of the product or replacement of the heat exchanger may be authorized by Rinnai
only. Rinnai does not authorize any person or company to assume for it any obligation or liability
in connection with the replacement of a product or heat exchanger. If Rinnai determines that
repair of a product is not possible, Rinnai will replace the product with a comparable product, at
Rinnais discretion. If a component or product returned to Rinnai is found to be free of defects in
material or workmanship, or damaged by improper installation or damaged during return shipping,
the warranty claim for product, parts and labor may be denied.
Warranty121205COMM-V2
Period of Coverage
Item
Commercial
Residential
Heat Exchanger
5 Years *
10 Years *
All other Parts and
Components
5 Years *
5 Years *
Reasonable Labor
1 Year
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Rinnai Corporation
V3237 Models
LIMITED WARRANTY
Rinnai Water Heater
HOW DO I GET SERVICE?
Simply contact a qualied Service Dealer or Installer for the repair of products under this Warranty.
Failure to use a qualied Service Dealer or Installer to provide repair service may void the
Warranty. For the name of the qualied Service Dealer or Installer nearest you, please contact
the company that installed the water heater, or;
Your local HVAC/plumbing dealer, gas service technician or place of purchase
Visit the Rinnai website www.rinnai.us
Call Rinnai at 1-800-621-9419 or write to Rinnai, 103 International Drive, Peachtree City, Georgia
30269
Proof of purchase is required to obtain warranty service. You can show proof of purchase with a
dated sales receipt, by completing and mailing the enclosed Warranty registration card within 30
days of purchasing the product or by registering online at www.rinnai.us . Please complete the
Warranty registration either onlin