Commercial Hybrid System Installation and Operation Manual

Commercial Hybrid System
Installation and Operation Manual
FOR INDOOR APPLICATIONS ONLY
CHS199100............ 119 gallon, 199,000 BTU
The Commercial Hybrid System is assembled with multiple and separately
certified components consisting of:



C199i Commercial Tankless Water Heater
Storage Tank
Controller
READ ALL OF THE INSTRUCTIONS THOROUGHLY BEFORE
INSTALLING OR OPERATING THIS SYSTEM.
(This manual is a supplement to the C199i Installation and
Operation Manual)
This manual provides information on the installation, operation, and
maintenance of the water heater. For proper operation and safety, it
is important to follow the instructions and adhere to the safety
precautions.
A licensed professional must install the water heater according to the
exact instructions in this manual.
The consumer must read the entire manual to properly operate the
water heater and to have regular maintenance performed.
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 flammable 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 fire department.
— Installation and service must be performed by a qualified installer, service agency or the gas supplier.
Table of Contents
Safety Behaviors and Practices for the
Consumer and Installer ........................................... 3
Installation Instructions
(for the licensed professional) ................................ 4
Installer Qualifications ....................................... 4
Type of Installation ........................................... 4
Installation Steps................................................ 4
General Instructions........................................... 4
Prepare for Installation ...................................... 5
Determine Installation Location ........................ 6
Combustion Air Requirements........................... 7
Commercial Hybrid System
Room Air Installation ......................................... 9
Direct Vent Terminal Clearances ..................... 10
Venting Guidelines ........................................... 12
Typical Installations.......................................... 13
Installation of Plumbing ................................... 14
Piping Diagram for Basic Installations.............. 15
Piping Diagram for Multiple Unit Installations 16
Installation of Gas Supply ................................ 18
Connect Electricity ........................................... 19
System Controller ............................................ 20
Condensate ...................................................... 21
Final Checklist .................................................. 23
Technical Data ........................................................ 24
Specifications ................................................... 24
Dimensions....................................................... 25
Storage Tank Maintenance.................................... 26
Replacement Parts ................................................. 27
Service / Maintenance Log .................................... 28
Warranty ................................................................ 29
Notes ...................................................................... 32
NOTICE:
Rinnai sometimes shares customer contact
information with businesses that we believe provide
products or services that may be useful to you. By
providing this information, you agree that we can
share your contact information for this purpose. If you
prefer not to have your information shared with these
businesses, please contact customer service and ask
not to have your information shared. We will
however, continue to contact you with information
relevant to the product(s) you registered and/or your
account with us.
If you have any questions or feel that the manual is
incomplete contact Rinnai at 1-800-621-9419.
Important Safety Information
Safety Definitions
This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you
and others.
2
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in personal
injury or death.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in personal
injury or death.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderate injury. It may also be used to alert against unsafe practices.
Commercial Hybrid System
Safety Behaviors and Practices for the Consumer and Installer
WARNING
 Before operating, smell all around the appliance
area for gas. Be sure to smell next to the floor
because some gas is heavier than air and will settle
on the floor.
 Keep the area around the appliance clear and free
from combustible materials, gasoline, and other
flammable vapors and liquids.
 Combustible construction refers to adjacent walls
and ceiling and should not be confused with
combustible or flammable products and materials.
Combustible and/or flammable products and
materials should never be stored in the vicinity of
this or any gas appliance.
 Always check the water temperature before
entering a shower or bath.
 To protect yourself from harm, before performing
maintenance:
 Turn off the electrical power supply by
unplugging the power cord or by turning off the
electricity at the circuit breaker. (The
temperature controller does not control the
electrical power.)
 Turn off the gas at the manual gas valve, usually
located immediately below the water heater.
 Turn off the incoming water supply. This can be
done at the isolation valve immediately below
the water heater or by turning off the water
supply to the building.
 Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob will not
push in or turn by hand, do not try to repair it; call a
licensed professional. Force or attempted repair
may result in a fire or explosion.
 Do not use this appliance if any part has been under
water. Immediately call a licensed professional to
inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.
 Do not use substitute materials. Use only parts
certified for the appliance.
 Should overheating occur or the gas supply fail to
shut off, turn off the manual gas control valve to the
appliance.
 Do not adjust the DIP switch unless specifically
instructed to do so.
 Do not use an extension cord or an adapter plug
with this appliance.
 Any alteration to the appliance or its controls can be
dangerous and will void the warranty.
 Proper venting is required for the safe operation of
this appliance.
CAUTION
 BURN HAZARD. Hot exhaust and vent may cause
serious burns. Keep away from the water heater
unit. Keep small children and animals away from
the unit.
 Hot water outlet pipes leaving the unit can be hot
to touch.
WARNING
California law requires this notice to be provided:
California Proposition 65:
This product contains chemicals known to the state of California to cause cancer, birth defects, or other
reproductive harm.
Commercial Hybrid System
3
INSTALLATION INSTRUCTIONS
(for the licensed professional)
Installer Qualifications
A licensed professional must install the appliance,
inspect it, and leak test it before use. The warranty
will be voided due to any improper installation.
 Do not obstruct the flow of combustion and
The installer should have skills such as:

Gas sizing.

Connecting gas lines, water lines, valves, and
electricity.

Knowledge of applicable national, state, and
local codes.

Installing venting through a wall or roof.

Training in installation of Rinnai water heaters.
(Training can be accessed on-line at
www.trainingevents.rinnai.us)
 Do not use this appliance in an application such as
Type of Installation
 For installation in commercial applications only.
Installation Steps
Prepare for Installation ...................................... 5
Determine Installation Location......................... 6
Venting Guidelines ........................................... 12
Installation of Plumbing ................................... 14
Checklist for Plumbing ..................................... 16
Installation of Gas Supply................................. 17
Connect Electricity ........................................... 18
Checklist for Gas and Electricity ....................... 19
System Controller............................................. 19
Condensate ...................................................... 20
Final Checklist................................................... 22
General Instructions
DO NOT
ventilation air. Combustion air shall not be
supplied from occupied spaces.
a pool or spa heater that uses chemically treated
water . (This appliance is suitable for filling large or
whirlpool spa tubs with potable water.)
 Do not use substitute parts that are not authorized
for this appliance.
MUST DO
 The installation must conform with local codes or,
in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the
Natural Gas and Propane Installation Code, CSA
B149.1.
 The appliance, when installed, must be electrically
grounded in accordance with local codes or, in the
absence of local codes, with the National Electrical
Code, ANSI/NFPA 70, or the Canadian Electrical
Code, CSA C22.1.
 The appliance and its appliance main gas valve
must be disconnected from the gas supply piping
system during any pressure testing of that system
at test pressures in excess of 1/2 psi (3.5 kPa)
(13.84 in W.C.).
 The appliance must be isolated from the gas supply
piping system by closing its individual manual
shutoff valve during any pressure testing of the gas
supply piping system at test pressures equal to or
less than 1/2 psi (3.5 kPa) (13.84 in W.C.).
 You must follow the installation instructions and
those in Care and Maintenance for adequate
combustion air intake and exhaust.
 Do not install the Commercial Hybrid System
outdoors.
 Do not install the appliance in an area where water
leakage of the unit or connections will result in
damage to the area adjacent to the appliance or to
lower floors of the structure. When such locations
cannot be avoided, it is recommended that a
suitable drain pan, adequately drained, be installed
under the appliance. The pan must not restrict
combustion air flow.
4
Commercial Hybrid System
General Instructions (Continued)
Prepare for Installation
INFORMATION
 If a water heater is installed in a closed water
supply system, such as one having a backflow
preventer in the cold water supply line, means
shall be provided to control thermal expansion.
Contact the water supplier or local plumbing
inspector on how to control thermal expansion.
Parts included
 Commercial Hybrid System
 Temperature and Pressure Relief Valve (Tank)
 Pressure Relief Valve (Preinstalled on Tankless)
 Non-Return Flue Check w 3" PVC Adapter
 Should overheating occur or the gas supply fail to
shut off, turn off the manual gas control valve to
the appliance.
 Keep the air intake location free of chemicals, such
as chlorine or bleach, that produce fumes. These
fumes can damage components and reduce the life
of your appliance.
EARTHQUAKE STRAPPING
 Pipe wrenches (2)
 Gloves
 Adjustable pliers
 Safety glasses
 Screwdrivers (2)
 Level
 Wire cutters
NOTICE
Product installed in the state of California must be
braced, anchored, or otherwise secured to avoid motion
or falling during an earthquake. Contact the California
Office of the State Architect located at 1102 Q Street,
Suite 5100, Sacramento, CA 95811 for instructions.
1. Loosen screws along the perimeter of the plastic
enclosures
2. Remove plastic enclosures
3. Position straps around the Demand Duo tank per
the requirements of California Office of the State
Architect. DO NOT POSITION STRAPS OVER PIPE,
FITTINGS or WIRE.
4. Replace the plastic enclosures. (Modification of
the plastic enclosures may be necessary to fit the
enclosures over the earthquake straps.)
5. Replace the screws around the perimeter of the
plastic enclosures.
Plastic Enclosure
(Side)
Tools needed
Tools that might be needed
 Hammer drill with
concrete bits
 Saw
 Core drill with diamond
head
 Torch set
 Threading machine with  Copper tubing cutter
heads and oiler
 Steel pipe cutter
Materials needed
 Soap or gas leak
detector solution
 Approved venting
 Teflon tape
(recommended) or pipe
compound
 Pipe insulation
Materials that may be needed
STRAP
 Heat tape
 Electrical wire and
conduit per local code
STRAP
 Single gang electrical
box
 Wire nuts
 PVC glue/cement
 Unions and drain valves
 5/8” ID PVC flexible
 Drain Pan
tubing
 2 conductor 22 AWG
 Earthquake Strap
wire for controller
Plastic Enclosure
(Bottom)
Commercial Hybrid System
5
Determine Installation Location
You must ensure that clearances will be met and that the
vent length will be within required limits. Consider the
installation environment, water quality, and need for
freeze protection. Requirements for the gas line, water
lines, electrical connection, and condensate disposal can
be found in their respective installation sections of this
manual.
0” Min
0” Min
0” Min
*6” Min
Determine Installation Location (Continued)

Choose the right hand truck to support the weight
and size of the water heater. Refer to the
“Specifications” section in this manual for specific
weights and dimensions.
 Use proper lifting techniques to load the water
heater onto the hand truck:
 Position the water heater onto the hand truck so
the weight is evenly balanced and the tank is
touching the rails of the hand truck.
 Secure the water heater to the hand truck:
 Position STRAP A around the tankless unit as
illustrated below.
 Position STRAP B around the base of the tank
below the LOWER ENCLOSURE.
STRAP A
LOWER
ENCLOSURE
**12” Min
STRAP B
Checklist to Determine Installation
Location
□ The water heater is not exposed to corrosive
compounds in the air.
□ The water heater location complies with the
clearances.
□ For indoor models, the planned venting will not
Door
Minimum Clearances
The minimum clearances from both combustibles
and non-combustibles construction is:
 0 inches from the sides
 0 inches from the back
 12 inches from the top
 6 inches from the front
 0 inches from vent components and condensate
drain line.
*The clearance for servicing is 24 inches in front of
the water heater.
**The clearance for servicing the anode rods is
54 inches from the top of the water heater.
6
exceed the maximum length for the number of
elbows used.
The planned venting termination/air intake
location meets the clearances.
□
□ Indoor air is not being used for combustion unless
installed in common vent application.
□ The water supply does not contain chemicals or
□
□
exceed total hardness that will damage the heat
exchanger.
The installation must conform with local codes or,
in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the
Natural Gas and Propane Installation Code, CSA
B149.1.
Leave the entire manual taped to the water
heater, or give the entire manual directly to the
consumer.
Commercial Hybrid System
Combustion Air Requirements
Room air can only be used in applications that utilize either the approved Rinnai common vent method, or the
commercial hybrid system (Refer to Rinnai Common Vent manual for further details regarding common vented
applications)
This water heater requires adequate combustion air for ventilation and dilution of flue gases. Failure to provide
adequate combustion air can result in unit failure, fire, explosion, serious bodily injury or death. Use the detailed
description in the C199 installation and operation manual to ensure adequate combustion air is available for
correct and safe operation of this water heater.
REFER TO THE C199 MANUAL FOR SPECIFIC DETAILS ON:
 Determining Vent Configuration
 Combustion Air Requirements
Single Unit Room Air Applications (must use included Combustion Air Check Valve)
(Use of Room Air Adapter is for U.S. installations only and is prohibited in Canada.)
Combustion Air Check Valve ONLY USED WITH ROOM AIR
VENTING AND WITH THE FOLLOWING REQUIREMENTS:

Single Unit Demand Duo™ (CHS199100)
Installations

Venting must terminate vertically

4” Standard PVC Venting (3” with Reducer)
DO NOT use the Combustion Air Check Valve for any
of the following applications:
4” PVC
Check
Valve
Condensate
Trap

Concentric (Direct Vent)

2 Pipe PVC (Direct Vent)

2 Pipe PP (Direct Vent)

Common Vent Applications

Horizontal Terminations
The combustion air check valve must only be used in
room air applications with a single pipe exhaust that
terminates vertically as shown.
Room Air Inlet
NOTICE
Combustion Air Check Valve (Included with System)
Part # 109000533
Do not use the included room air check valve for
common vent systems. If utilizing common vent, the
check valve that is included with the Common Vent
kits must be used. Refer to Common Vent (CVent)
manual for further details.
Commercial Hybrid System
7
Combustion Air Requirements (Continued)
Exhaust
Checklist for Combustion Air and Venting
Requirements
□ Verify proper clearances around the vents .
□ Ensure that the Combustion Air Requirements are
followed that will provide sufficient combustion
air for the appliance.
□ Ensure approved venting components have been
used.
□ All horizontal vent runs must be sloped up away
from the water heater a minimum of 1/4 “ (6 mm)
per foot.
□ Verify that there is adequate combustion air.
Vent termination per ANSI Z223.1/NFPA 54. For
clearances not specified in ANSI Z223.1/NFPA 54,
clearances are in accordance with local installation
codes and the requirements of the gas supplier.
Exhaust
□ Ensure if installed in common vent application
utilizing room air that exhaust is terminating
vertically only. (Reference Common Vent manual
for further details.)
□ Installation complies with National Fuel Gas
Code, ANSI Z223.1/NFPA 54 as well as local and
state regulations therein.
□ The water heater is not subjected to corrosive
compounds in the air.
8
Commercial Hybrid System
Commercial Hybrid System Room Air Installation
NOTICE

Prior to the installation of the vent system, the unit must be properly adjusted for the venting configuration
selected for the application.

Any issues resulting from improper installation will not be covered by warranty.

Non-return flue check adapter is included with every commercial hybrid system.
Exhaust Adapter Ring to be removed and discarded
for concentric vent or room air configuration.
Removal of Exhaust Adapter Ring
1. Remove fastener from concentric flue
connection.
Removal of Exhaust Adapter Ring (Continued)
3. Install the non-return flue check adapter. Ensure
it is properly seated.
2. Remove exhaust adapter ring.
4. Secure the adapter to the unit with a screw.
Commercial Hybrid System
9
Direct Vent Terminal Clearances
A vent termination must be installed to bring in combustion air and expel exhaust to the outside.
X
TERMINATION
AIR SUPPLY INLET
V VENT TERMINAL
AREA WHERE TERMINAL IS NOT PERMITTTED
Clearance in
Ref. A also
applies to
anticipated
snow line
SNOW
Ref
Description
Canadian Installations
US Installations
A
Clearance above grade, veranda, porch, deck, or balcony
12 inches (30 cm)
12 inches (30 cm)
B
Clearance to window or door that may be opened
36 inches (91 cm)
12 inches (30 cm)
C
Clearance to permanently closed window
*
*
D
Vertical clearance to ventilated soffit, located above the terminal within a
horizontal distance of 2 feet (61 cm) from the center line of the terminal
*
*
E
Clearance to unventilated soffit
*
*
F
Clearance to outside corner
*
*
G
Clearance to inside corner
*
*
H
Clearance to each side of center line extended above meter/regulator
assembly
*
*
Above a regulator within 3 ft (91cm)
horizontally of the vertical center line of
the regulator vent outlet to a maximum
vertical distance of 15 ft (4.5 m)
*
36 inches (91 cm)
12 inches (30 cm)
6 feet (1.83 m)
3 feet (91 cm) above if within
10 feet (3 m) horizontally
7 feet (2.13 m) 
*
12 inches (30 cm) 
*
I
Clearance to service regulator vent outlet
J
Clearance to nonmechanical air supply inlet to building or the combustion air
inlet to any other appliance
K
Clearance to a mechanical air supply inlet
L
Clearance above paved sidewalk or paved driveway located on public
property
M
Clearance under veranda, porch, deck, or balcony
*1+ A vent shall not terminate directly above a sidewalk or paved driveway
that is located between two single family dwellings and serves both
dwellings.
*2+ Permitted only if veranda, porch, deck, or balcony is fully open on a
minimum of two sides beneath the floor.
10
 For clearances not specified in ANSI Z223.1/NFPA 54, clearances are in
accordance with local installation codes and the requirements of the gas
supplier.
Clearance to opposite wall is 24 inches (60 cm).
Commercial Hybrid System
REFER TO THE C199 MANUAL FOR SPECIFIC DETAILS ON:

Approved Vent Manufacturers and Terminations

Termination Clearances

Maximum Vent Length

Flue Installation with Concentric Venting

Common Vent Application

Twin Pipe PVC/CPVC Vent Installation

Consumer Operation Guidelines for the Safe Operation of your
Water Heater

How to use the C199 Temperature Controller

C199 Diagnostic Codes

C199 Required Maintenance (Draining of the tankless water heater will
require the lower enclosure to be removed. Reference page 17 to remove
the enclosure.)

C199 Replacement Parts
Commercial Hybrid System
11
Venting Guidelines
DO NOT

Do not use cellular core PVC/CPVC.
NOTICE

Do not use Radel, ABS, or galvanized material to
vent this appliance.

Do not cover non-metallic vent pipe and fittings
with thermal insulation.
Do not combine vent components from different
manufacturers.
Vent diameter must not be reduced.
Do not connect the venting system with an
existing vent or chimney.
Do not common vent with the vent pipe of any
other manufacturer’s water heater or appliance.
Rinnai water heaters can only be common vented
using a Rinnai certified common vent system.
If it becomes necessary to access an enclosed vent
system for service or repairs, Rinnai is not responsible
for any costs or difficulties in accessing the vent
system. The warranty does not cover obtaining
access to a vent system in an enclosed environment.





If the vent system is to be enclosed, it is suggested
that the design of the enclosure shall permit
inspection of the vent system. The design of such
enclosure shall be deemed acceptable by the
installer or the local inspector.
MUST DO







This water heater is a direct vent water heater and
therefore is certified and listed with the vent
system. You must use vent components that are
certified and listed with the water heater model.
The vent system must vent directly to the outside
of the building and use outside air for combustion.
Exceptions:
- Approved Rinnai Common Vent Applications
- Commercial Hybrid System Applications
Avoid dips or sags in horizontal vent runs by
installing supports per the vent manufacturer’s
instructions.
Support horizontal vent runs every four feet and
all vertical vent runs every six feet or in
accordance with local codes.
Venting should be as direct as possible with a
minimum number of pipe fittings.
Vent connections must be firmly pressed together
so that the gaskets form an air tight seal.
The vent piece connected to the water heater
must be secured with one self-tapping screw.
INFORMATION

12
Refer to the instructions of the vent system
manufacturer for component assembly
instructions.
Commercial Hybrid System
Typical Installations
Hot Water
Supply
Cold Water
Supply
(Route condensate through
enclosure to drain)
Mixing Valve Installation
A
Hot Water Outlet
*
B
Hot Water Outlet Valve
*
C
Temperature-Pressure Relief
Valve
D
Cold and Hot Unions
*
E
Cold Water Supply Valve
*
F
Cold Water Supply
*
G
Thermal Expansion Tank
*
H
Vent pipe (concentric shown for
illustration purposes, see venting
section for other options)
*
I
Operation Unit / Temperature
Control
J
Drain Pan
*
K
Temperature-Pressure Relief
Valve Discharge Pipe
(do not cap, plug, or reduce )
*
L
Drip Leg (Sediment Trap)
*
M
Gas Union
*
N
Gas Control Valve
O
Thermostatic Mixing Valve
*
P
Non-Tempered Return Line
*
Q
Non-Tempered Supply Line
*
* Field Supplied
Commercial Hybrid System
13
Installation of Plumbing
Pressure Relief Valve Requirements
An approved pressure relief valve (preinstalled) is
required by the American National Standard (ANSI
Z21.10.3) for all water heating systems and shall be
accessible for servicing.
DO NOT
 Do not plug the relief valve and do not install any
reducing fittings or other restrictions in the relief
line. The relief line should allow for complete
drainage of the valve and the line.
 Do not place any other type valve or shutoff device
between the relief valve and the water heater.
MUST DO
 The relief valve must comply with the standard for
Relief Valves and Automatic Gas Shutoff Devices for
Hot Water Supply Systems ANSI Z21.22 and /or the
standard Temperature, Pressure, Temperature and
Pressure Relief Valves and Vacuum Relief Valves,
CAN1-4.4.
 The pressure relief valve must be rated up to 150 psi
and to at least the maximum BTU/hr of the
appliance.
 The discharge from the pressure relief valve should
be piped to the ground or into a drain system per
local codes.
 The pressure relief valve must be manually operated
once a year to check for correct operation.
 The relief valve should be added to the hot water
outlet line and near the hot water outlet according
to the manufacturer’s instructions. DO NOT place
any other type valve or shut off device between the
relief valve and the water heater.
Install the Temperature-Pressure Relief (T&P) Valve
according to these instructions.
The tank portion of this system is provided with a
combination temperature-pressure relief valve. For
safe operation of the water heater, the relief valve(s)
must not be removed from its designated point of
installation or plugged.
An approved Temperature-Pressure Relief Valve is
required by the American National Standard (ANSI
Z21.10.3) for all water heating systems, and shall be
accessible for servicing.
DO NOT
 Do not plug the T&P valve and do not install any
reducing fittings or other restrictions in the relief
line. The relief line should allow for complete
drainage of the T&P valve and the line.
 Do not place any other type valve or shut off
device between the relief valve and the water
heater.
 Do not pipe temperature-pressure relief valve,
pressure relief valve, and/or condensate drain
together into a common pipe.
MUST DO
 The T&P valve must comply with the standard for
Relief Valves and Automatic Gas Shutoff Devices for
Hot Water Supply Systems ANSI Z21.22 and /or the
standard Temperature, Pressure, Temperature and
Pressure Relief Valves and Vacuum Relief Valves,
CAN1-4.4.
 The T&P valve must be rated up to 150 psi and to
at least the maximum BTU/hr of the appliance.
WARNING
Water discharged from the pressure relief valve could
cause severe burns instantly or death from scalds.
INFORMATION
Temperature-Pressure Relief Valve
Requirements
 The discharge from the T&P Valve should be piped
to the ground or into a drain system to prevent
exposure or possible burn hazards to humans or
other plant or animal life. Follow local codes.
Water discharged from the relief valve could cause
severe burns instantly, scalds, or death.
If a relief valve discharges periodically, this may be due
to thermal expansion in a closed water supply system.  The Temperature-Pressure Relief Valve must be
Contact the water supplier or local plumbing inspector
manually operated once a year to check for correct
on how to correct this situation. Do not plug the relief
operation.
valve.
14
Commercial Hybrid System
Piping Diagram for Basic Installations
Building Hot Water Supply Line
Commercial Hybrid
Single Unit Circulation
Note:
Installation must conform to applicable code
and all requirements listed in the installation
manual. Balancing valves, equivalent piping,
pressure gauges, and temperature gauges are
to be used as necessary to ensure proper flow
between units.
Condensate piping shall be CPVC or PVC
material and shall not be smaller than the
drain connection on the appliance.
Components of condensate drainage shall be
CPVC or PVC material. All components shall
be selected for the pressure and temperature
rating of the installation.
Tank
T&P
Where the drain pipes from more than one
unit are manifolded together for condensate
drainage, the pipe or tubing shall be sized in
accordance with an approved method as
dictated by local codes.
Condensate must be disposed of
according to local codes.
Tankless
PRV
Gas Supply
Condensate Drain Line
Pipe T&P to Open Drain
Cold Water Supply
Building
Circulation
Pump
Building Hot Water
Return Line
(Optional)
Commercial Hybrid System
15
Commercial Hybrid System





BUILDING CIRCULATION PUMP AND HOT
WATER RETURN LINE (OPTIONAL)
COLD WATER
SUPPLY
GAS SUPPLY
Installation must conform to applicable code and all requirements listed in the installation manual. Balancing valves, equivalent piping, pressure
gages, and temperature gages are to be used as necessary to ensure proper flow between units.
Condensate piping shall be CPVC or PVC material and shall not be smaller than the drain connection on the appliance.
Components of the condensate drainage shall be CPVC or PVC material. All components shall be selected for the pressure and temperature rating
of the installation.
Where the drain pipes from more than one unit are manifolded together for condensate drainage, the pipe or tubing shall be sized in accordance
with an approved method as dictated by local codes.
Condensate must be disposed of according to local codes.
Notes:
Additional units can be installed as illustrated.
PIPE EACH T&P AND PRV TO OPEN DRAIN
HOT WATER SUPPLY LINE
Piping Diagram for Multiple Unit Installations
CONDENSATE
DRAIN LINE
16
Connect Water Heater to Water Supply
Checklist for Plumbing
Water connections to the Commercial Hybrid System
should follow all state and local plumbing codes.
□ Ensure that hot and cold water lines are not
If this is a standard installation, refer to the Piping
Diagram for basic installation.
1. Use of this layout should provide a trouble-free
installation for the life of the water heater. Before
making the plumbing connections, locate the
COLD water inlet and the HOT water outlet.
 The COLD water inlet is a 2” MNPT fitting on
the lower portion of the tank below the
tankless unit.
 The HOT water outlet is a 2” MNPT fitting
located at the top of the tank. Install a shutoff valve close to the water heater in the cold
water line. It is recommended that unions be
installed in the cold and hot water lines so
that the water heater can be easily disconnected, if servicing is required.
2. When assembling the hot and cold piping, use a
good food grade pipe joint compound, and ensure
all fittings are tight. It is imperative that open
flame is not applied to the inlet and outlet fittings,
as heat will damage or destroy the plastic lined
fittings. This will result in premature failure of
the fittings, which is not covered by the
warranty.
Filling the System
crossed to the unit and are leak free.
□ Ensure that a pressure relief valve is installed with
a rating that exceeds the BTU input of the water
heater model. Refer to the rating plate on the
side of the water heater for BTU input.
□ Clean the inlet water filter by closing the cold and
hot water inlet isolation (shut-off) valves. Put a
bucket under the filter at the bottom of the water
heater to catch any water that is contained inside
the unit. Unscrew the water filter. Rinse the
filter to remove any debris. Install the filter and
open the isolation valves.
□ Check for proper water pressure to the water
heater. Minimum water pressure is 50 psi. Rinnai
recommends 60-80 psi for maximum
performance.
□ Ensure any issues regarding water quality have
been properly addressed.
NOTICE
DO NOT OPERATE THIS WATER HEATER UNLESS IT IS
COMPLETELY FULL OF WATER
DO NOT OPERATE THIS WATER HEATER UNLESS IT IS
COMPLETELY FULL OF WATER. To prevent damage to
the water heater, all air must be relieved from the
system and a hot water fixture must be flowing water
before the water heater is plugged in and turned on.
To ensure safe and effective operation of the water
heater, use the following filling procedure. To fill the
water heater:
1. Ensure the drain valve located at the bottom of
the tank is closed.
2. Open the nearest hot water fixture in the
plumbing system.
3. Open the cold water supply valve to the water
heater.
4. Keep the hot water fixture open until the tank is
filled and constant flow is obtained at the fixture.
5. Check water heater connections and plumbing
system for damage or leaks. Repair if needed.
Commercial Hybrid System
17
Installation of Gas Supply
WARNING
REFER TO THE C199 MANUAL FOR
SPECIFIC DETAILS ON SIZING THE
GAS PIPE.
1. If you are not knowledgeable or qualified to
install gas lines or connections, then contact a
licensed professional to install the gas supply.
MUST DO
2. Turn off 120v power supply.
 A manual gas valve must be placed in the gas
3. Turn off the gas.
4. Gas is flammable. Do not smoke or provide other
ignition sources while working with gas.
5. Do not turn on the water heater or gas until all
fumes are gone.
General Instructions
In order to access the gas connections, remove the
plastic rivet screws that attach the lower enclosure to
the assembly. Proceed to then remove the lower
enclosure.
Gas
Valve
Union
supply line to the water heater. Install a union
between the gas valve and the appliance for future
servicing or unit removal.
 Check the type of gas and the gas inlet pressure
before connecting the water heater. If the water
heater is not of the gas type that the building is
supplied with, DO NOT connect the water heater.
Contact the dealer for the proper unit to match the
gas type.
 Check the gas supply pressure immediately
upstream at a location provided by the gas
company. Supplied gas pressure must be within
the limits shown in the Specifications section with
all gas appliances operating.
 Before placing the appliance in operation all joints
including the heater must be checked for gas
tightness by means of leak detector solution, soap
and water, or an equivalent nonflammable
solution, as applicable. (Since some leak test
solutions, including soap and water, may cause
corrosion or stress cracking, the piping shall be
rinsed with water after testing, unless it has been
determined that the leak test solution is noncorrosive.)
 Use approved connectors to connect the unit to
the gas line. Purge the gas line of any debris before
connection to the water heater.
 Any compound used on the threaded joint of the
gas piping shall be a type which resists the action of
liquefied petroleum gas (propane / LPG).
 The gas supply line shall be gas tight, sized, and so
installed as to provide a supply of gas sufficient to
meet the maximum demand of the heater and all
other gas consuming appliances at the location
without loss of pressure.
Gas Connection
(3/4” MNPT)
Lower Enclosure
18
 Always check all gas pipe connections and fittings
for leaks before operating the water heater. Use
soapy water on all fitting and visually inspect for
bubble formation. Rinse off soapy water and wipe
dry.
Commercial Hybrid System
Connect Electricity
REFER TO THE C199 MANUAL FOR :
Black
White
Temperature Controller Installation
Green

Black
Vent Length Adjustment
White

White
The water heating system must be electrically
grounded in accordance with local codes and
ordinances or, in the absence of local codes, in
accordance with the National Electrical Code, ANSI/
NFPA No. 70.
High Altitude Adjustment
Green
Do not use an extension cord or an adapter plug with
this appliance.

Green
WARNING
The wiring diagram is located on the Technical Sheet
attached to the inside of the front cover.
Power
Supply
Black
The water heater requires 120 VAC, 60 Hz power from
a properly grounded circuit.
Black
Green
Do not rely on the gas or water piping to ground the
water heater. A terminal block inside the controller
should be used for the grounding connection.
White
The tankless water heater is equipped with a threeprong (grounding) plug for your protection against
shock hazard and should be plugged directly into the
three-prong receptacle located at the bottom of the
controller.
PRE-WIRED
SUPPLY POWER
PRE-WIRED PUMP
CONNECTION
ATTENTION
DO NOT connect power to the commercial hybrid
system prior to completing installation and the
system has been filled with water.
Do not rely on the gas or water piping to ground the
water heater. A terminal block inside the controller
should be used for the grounding connection.
Terminal
Block
The water heater requires 120 VAC, 60 Hz power from
a properly grounded circuit.
The wiring diagram is located on the Technical Sheet
attached to the inside of the front cover.
Low Voltage
Thermistors
Pump Control
Output: 120 Volt
Supply Power
Input: 120 Volt
(3 Prong Plug)
Tankless Supply
Output: 120 Volt
(3 Prong Receptacle
already connected to
tankless from factory)
Commercial Hybrid System
19
CONTROLLER DIAGNOSTICS
SYSTEM CONTROLLER
The system controller maintains communication
between the tank and tankless to effectively control
the tank temperature based on the selected
temperature on the tankless unit.
By reading the tank temperature (J22) and tankless
outlet temperature (J2), the System Controller will
energize (120V) the pump when the tank
temperature drops. When the tank temperature
returns to the selected set temperature the System
Controller will de-energize the pump and remain in
standby until the tank temperature drops again.
ATTENTION
When power is supplied, the System Controller will
maintain pump operation. If system is not in use for
an extended period of time, Disconnect power from
the system.
Checklist for Gas and Electricity
□
A manual gas control valve is placed in the gas
line to the water heater.
□
□
Check the gas lines and connections for leaks.
□
Confirm that the water heater is rated for the gas
type supplied.
□
Confirm that the electricity is supplied from 120
VAC, 60 Hz power source and is in a properly
grounded circuit.
□
Confirm that an extension cord or an adapter plug
has NOT been used with the water heater.
20
Confirm that the gas inlet pressure is within
limits.
Commercial Hybrid System
PUMP ON (SOLID GREEN LIGHT)
PUMP OFF (NO LIGHT)
NORMAL OPERATION (SLOW PULSE)
THERMISTOR ERROR (RAPID PULSE)
Condensate
Condensate can form in the vent of high efficiency
direct vent appliances. Without proper drainage,
condensate will damage the heat exchanger.
To prevent condensate damage, follow these
instructions.
DO NOT
INFORMATION
 Water heaters have an integrated condensate
collector.
 The condensate drain pipe should be as short as
possible and have a downward pitch.
 If the condensate drain gets blocked, a diagnostic
 Do not connect the condensate drain pipe directly
to the rain sewer.
 Do not connect the condensate drain line with an
air conditioning evaporator coil drain.
 Do not pipe condensate drain, temperature-
pressure relief valve, and/or pressure relief valve
together into a common pipe.
MUST DO
code will display on the controller. If this occurs,
the condensate drain must be cleaned.
 The condensate trap will automatically prime (self-
prime) during operation of the unit as condensate
forms. Condensate draining from the unit
indicates that the trap is full and that there is no
blockage in the condensate drain. It is not
necessary to add water to the condensate trap.
 A condensate neutralizer kit, 804000074, is
 Use only venting that is approved and identified as
acceptable for your particular model.
 Slope the venting toward the appliance according
to the vent manufacturer’s installation
instructions.
 All condensate must drain and be disposed of
according to local codes.
 Use only corrosion resistant materials for the
condensate drain lines such as PVC pipe or plastic
hose.
 The condensate drain pipe (along its entire length)
must be at least the same diameter as the drain
line, (1/2 inch NPT).
 The end of the condensate drain pipe should be
open to the atmosphere. The end should not be
under water or other substances.
 To minimize freezing of the condensate, run the
available from Rinnai. The kit allows condensate
to flow through neutralizing media that raises the
pH of the condensate to a level that will help
prevent corrosion of the drain and public sewer
system.
Checklist for Venting and Condensate
□ Verify proper clearances around the vents and air
intakes.
□ Ensure you have used the correct venting
products for the model installed and that you
have completely followed the venting
manufacturer’s installation instructions and these
installation instructions.
□ Verify that the vent system does not exceed the
maximum length for the number of elbows used.
condensate drain line through an interior wall or
between insulation and an interior wall.
 Ensure that condensate drain, PRV, and T & P are
piped separately to their own dedicated drain
lines.
Commercial Hybrid System
21
A Condensate line must be installed to the 1/2” MNPT
connection located at the bottom of the tankless unit.
The condensate line must be routed out of the system
enclose with a downward pitch
3. Reinstall the lower enclosure using the plastic
rivet screws to secure it into place.
Condensate Connection
(1/2” MNPT)
Following are two examples on how to rout the
condensate line.
1. Cut a hole in the lower enclosure that will
maintain appropriate pitch of the condensate
line.
2. Route the condensate line out through the
opening locate at the base of the lower enclosure.
22
Commercial Hybrid System
Final Checklist
□
The water heater is not subject to corrosive
compounds in the air.
□
□
Confirm that the water heater is rated for the gas
type supplied.
The water supply does not contain chemicals or
exceed total hardness that will damage the heat
exchanger.
□
□
□
Confirm that the electricity is supplied from a 120
VAC, 60 Hz power source, is in a properly
grounded circuit, and turned on.
Clearances from the water heater unit are met.
□
Verify the temperature controller is functioning
properly.
□
Verify that SW 2 and SW 3 in DIPSW 1 is set
correctly for your altitude.
□
Verify the system is functioning correctly by
connecting your manometer to the gas pressure
test port on the water heater. Operate all gas
appliances in the home or facility at high fire. The
inlet gas pressure at the water heater must not
drop below that listed on the rating plate.
□
DO NOT introduce toxic chemicals such as those
used for boiler water treatment to the potable
water used for space heating.
□
If the water heater is not needed for immediate
use, then drain the water from the heat
exchanger.
□
□
Install the front panel.
□
Explain to the customer the operation of the
water heater, safety guidelines, maintenance, and
warranty.
□
The installation must conform with local codes or,
in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the
Natural Gas and Propane Installation Code, CSA
B149.1.
□
Leave this manual and the entire C199 manual
taped to the water heater, or give both manuals
directly to the consumer.
□
Clearances from the vent termination / air intake
are met.
Ensure you have used the correct venting
products for the model installed and that you
have completely followed the venting
manufacturer’s installation instructions and these
installation instructions.
□
Verify that the vent system does not exceed the
maximum length for the number of elbows used.
□
Verify that SW 1 in DIPSW 1 has been adjusted for
vent length if necessary. Refer to the section on
Maximum Vent Length.
□
Purge the water line of all debris and air by
closing the hot isolation valve and opening the
cold isolation valve and its drain. Debris will
damage the water heater. Use a bucket or hose
if necessary.
□
Ensure that hot and cold water lines are not
crossed to the unit and are leak free.
□
A manual gas control valve has been placed in the
gas line to the water heater.
□
Ensure that a pressure relief valve is installed with
a rating that exceeds the BTU input of the water
heater model. Refer to the rating plate on the
side of the water heater for BTU input.
□
□
□
Clean the inlet water filter by closing the cold and
hot water inlet isolation (shut-off) valves. Put a
bucket under the filter at the bottom of the water
heater to catch any water that is contained inside
the unit. Unscrew the water filter. Rinse the
filter to remove any debris. Install the filter and
open the isolation valves.
Explain to the customer the importance of not
blocking the vent termination or air intake.
Check the gas lines and connections for leaks.
Confirm that the gas inlet pressure is within
limits.
Commercial Hybrid System
23
Technical Data
Specifications
Product Number
CHS199100
Minimum Gas Consumption Btu/h (kW/h)
Maximum Gas Consumption Btu/h (kW/h)
Tank Volume
First Hour Delivery
Temperature Setting
Product Weight
Noise level
Normal
Standby
Anti-frost Protection
Max Current
Fuse
System Electrical Data
By-Pass Control
Natural Gas
Propane
Gas Supply Pressure
Type of Appliance
15,200 (4.5)
199,000 (58.3)
119 Gallons
(450 Liters)
315 Gallons
(1192 Liters)
98° F (37° C) to 185° F (85° C)
428 lb (194 kg)
52 dB
256 W
44 W
326 W
5.5 A
Tankless Engine - 10 A, Controller - 10 A
Electronic
4.0 - 10.5 inch W.C.
8.0 - 13.5 inch W.C.
Condensing Hybrid System: Condensing tankless, Insulated Storage Tank,
Pump & Control
Category Designation of Appliance
Category IV
Gas Supply Inlet - 3/4" MNPT
Hot Water Outlet - 1-1/2" MNPT
Cold Water Inlet - 1-1/2" MNPT
Connections
Ignition System
Direct Electronic Ignition
Appliance: AC 120 Volts, 60Hz.
Integrated Temperature Controller: DC 12 Volts (Digital)
Simulation Feed forward and Feedback
150 PSI
Yes
Electric Connections
Water Temperature Control
Maximum Water Supply Pressure
Commercial Energy Star Certified (C199i)
Complies with South Coast Air Quality Management District
14 ng/J or 20 ppm NOx emission levels (C199i)
Yes
RECOVERY CAPACITIES
Product
Number
Type
of
Gas
U.S. GALLON/HR LITERS/HR AT TEMPERATURE RISE INDICATED
Input
Thermal
Efficiency
BTU/HR kW
NAT/
CHS199100
199,000
LP
°F
Tank
Capacity °C
119 U.S.
GPH
Gals.
58
96%
450
Liters
LPH
30°F
40°F
50°F
60°F
17°C
22°C
28°C
33°C 39°C 44°C 50°C 56°C
772
579
463
386
70°F
331
80°F
90°
100°F 110°F
120°F 130°F 140°F
61°C
67°C
72°C
78°C
289
257
232
211
193
178
165
2922 2192 1753 1461 1253 1093
973
878
799
731
673
625
* First Hour Delivery Rating is a theoretical calculation based on 70% usable tank capacity (tank Capacity x .70 + (recovery) = First
Hour Rating
Our products are continually being updated and improved; therefore, specifications are subject to change without prior notice.
The maximum inlet gas pressure must not exceed the value specified by the manufacturer. The minimum value listed is for the
purpose of input adjustment.
24
Commercial Hybrid System
Dimensions
Inches (millimeters)
69.50
1-1/2” MNPT
(HOT)
1-1/2”
MNPT
(COLD)
Commercial Hybrid System
25
Storage Tank Maintenance
Anodes
Draining the Storage Tank
The storage tank is equipped with two magnesium
anodes designed to extend the life of the storage
tank. Slowly consumed over time, the anode protects
the glass-lined tank from corrosion. It is strongly
recommended to inspect the anodes every two (2)
years. If more than half of the anodes has been
consumed, they should be replaced. Instructions on
how to change the anodes can be obtained from the
manufacturer.
To completely drain the storage tank:
The longevity of the storage tank can be reduced
when a water softener is introduced to fight hard
water. Sodium salts added by a softener can make the
water extremely conductive; therefore, the anodes
are consumed at a faster rate. In such conditions, the
anodes should be inspected on a yearly basis.
In certain conditions, the anodes may react with the
water, producing discolored or smelly water. The
most common complaint is hot water that smells like
rotten eggs. This is the result of the reaction between
the anode and hydrogen sulphide gas dissolved in the
water, which is common in well systems. This issue
can usually be eliminated or reduced by changing the
magnesium anodes to aluminum anodes and by chlorinating the storage tank and plumbing system. If the
problem continues, special filtration equipment may
be required. Under no circumstances are the anodes
to be removed from the water heater on a permanent
basis.
1. Turn the power “OFF” to the system by unplugging power to the system. (The system will not be
fully shut down by simply pressing the power
button on the controller)
2. Close the cold water supply manual shut-off
valve.
3. Connect one end of a garden hose to the storage
tank drain valve and put the other end next to a
free-flowing drain.
4. Open the drain valve by turning the knob counter
clockwise
5. Open a hot water faucet to allow air into the
system.
Removal of the anodes will lead to premature failure
of the water heater and will void the warranty.
Storage Tank
Drain a pail of water through the drain valve at least
once a year. This will remove excess sediment from
the bottom of the tank. This sediment, if allowed to
accumulate, will reduce the efficiency and the life of
the tank.
Cold Water
Supply Valve
Drain Valve
26
Commercial Hybrid System
Commercial Hybrid System
27
C199IN/IP
109000519
109000518
109000521
109000520
109000517
107000230
107000181
107000157
WRIK-LF-F
107000162
105000223
105000225
105000229
107000182
107000161
107000183
107000184
109000552
107000160
107000164
107000185
107000186
107000187
107000155
107000188
107000189
107000231
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22
23
24
25
26
27
28
29
PART NUMBER
1
ITEM
NO.
FRONT COVER
LOWER RIGHT COVER
LOWER LEFT COVER
TOP RIGHT COVER
TOP LEFT COVER
TANKLESS C199i
DESCRIPTION
HEX REDUCER BUSHING, 2 INCH MALE X 1-1/2 INCH
FEMALE
BRASS DRAIN VALVE 3/4 X 2-3/4
ANODE ROD, MAGNESIUM
TANK, 119 GALLON W/ BRACKETS
HEX REDUCING BUSHING, 1 IN MALE X 3/4 FEMALE
HEX NIPPLE, 3/4 IN
90° FEM X MALE ELBOW, 3/4IN
TUBE, 26-1/4 X 3/4 NPSH X 3/4 MNPT
FLEX, LENGTH 7.80IN, 3/4 NPSH X 3/4 MNPT
CLEANOUT BOLTS 5/16IN-18 X 1IN
HAND HOLE CLEANOUT COVER
TANK CLEANOUT FLANGE GASKET
PUMP
HEX REDUCING BUSHING, 2IN MALE X 3/4 FEMALE
CLIP ON THERMISTOR, 10K Ohm
THERMISTOR, 3/4MNPT, 10K Ohm
CONTROLLER ASSEMBLY
PRV PIPE
VALVE KIT (COLD, HOT, PRV)
T&P RELIEF VALVE (FVMX-5C)
1INCH DIELECTRIC NIPPLE
1-1/2 INCH DIELECTRIC NIPPLE X 4 INCH
REPLACEMENT PARTS
Service / Maintenance Log
Date
28
Service / Maintenance Completed
Commercial Hybrid System
Limited Warranty for Ultra Series C199i and C199e
What is covered?
The Rinnai Standard Limited 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 Limited Warranty applies only to products that are installed correctly United States and
Canada. Improper installation may void this Limited Warranty. In order for this warranty to apply, it is required that
you use a licensed professional who has attended a Rinnai installation training class before installing this water
heater. This Limited Warranty coverage as set out in the table below extends to the original purchaser and
subsequent owners, but only while the product remains at the site of the original installation. This Limited Warranty
only extends to the first / original installation of the product and terminates if the product is moved or reinstalled at a
new location.
How long does warranty coverage last?
Period of Coverage (from date of purchase)
Item
Commercial Applications
Heat Exchanger
6 years *1+ *2+
Storage Tank
6 years *1+ *2+
All Other Parts and Components
5 years *1+
Reasonable Labor
1 year *3+
*1+ Period of coverage is reduced to 3 years from date of purchase when used as a recirculating water heater within a
hot water recirculation loop, where the water heater is in series with a recirculation system and all recirculating
water flows through the water heater, and where an aquastat / thermostat, timer, or an on-demand recirculation
system is not incorporated.
*2+ The Rinnai Limited Warranty for a heat exchanger used in a recirculation system which is controlled through an
aquastat / thermostat, or timer, or an on-demand system is 6 years for commercial applications.
*3+ Labor coverage is extended to 2 years in commercial applications if the product is registered within 30 days
(except registration is not required in California and Quebec) and/or if the other conditions above in the
Commercial Applications sections are satisfied.
NOTE: The integrated controller on indoor models has a 1 year warranty on parts.
What will Rinnai do?
Rinnai will repair or replace the covered product or any part or component that is defective in materials or
workmanship as set forth in the above table. Rinnai will pay reasonable labor charges associated with the repair or
replacement of any such part or component during the term of the labor warranty period. All repair parts must be
genuine Rinnai parts. All repairs or replacements must be performed by a licensed professional that is properly
trained, state qualified or licensed to do the type of repair.
Replacement of the product may be authorized by Rinnai only at its sole discretion. Rinnai does not authorize any
person or company to assume for it any obligation or liability in connection with the replacement of the product. If
Rinnai determines that repair of a product is not possible, Rinnai may replace the product with a comparable product
at Rinnai’s sole discretion. The warranty claim for product parts and labor may be denied if a component or product
returned to Rinnai is found to be free of defects in material or workmanship; damaged by improper installation, use
or operation; or damaged during return shipping.
Commercial Hybrid System
29
How do I get service?
You must contact a licensed professional for the repair of a product under this Limited Warranty. For the name of a
licensed professional please contact your place of purchase, visit the Rinnai website (www.rinnai.us), call Rinnai at
1-800-621-9419 or write to Rinnai at 103 International Drive, Peachtree City, Georgia 30269.
Proof of purchase is required to obtain warranty service. You may show proof of purchase with a dated sales receipt,
or by registering within 30 days of purchasing the product. To register your tankless water heater, please visit
www.rinnai.us. For those without internet access, please call 1-866-RINNAI1 (746-6241). Receipt of Registration by
Rinnai will constitute proof-of-purchase for this product. Registration of product installed in new home construction
may be verified with a copy of the closing papers provided by the initial home buyer. However, Registration is not
necessary in order to validate this Limited Warranty.
What is not covered?
This Limited Warranty does not cover any failures or operating difficulties due to the following:
 accident, abuse, or misuse
 alteration of the product or any component part
 misapplication of this product
 improper installation (such as but not limited to)
 product being installed in a corrosive
environment
 condensate damage
 improper venting
 incorrect gas type
 incorrect gas or water pressure
 absence of a drain pan under the appliance
 improper maintenance (such as but not limited to
scale build-up, freeze damage, or vent blockage)
 incorrect sizing
 any other cause not due to defects in materials or
workmanship
 problems or damage due to fires, flooding, electrical
surges, freezing or any acts of God.
 any damage caused by poor water quality
 operating the water heater with anything other than
potable water at all times
 force majeure
There is no warranty coverage on product installed in a closed loop application, commonly associated with space
heating only applications.
This Limited Warranty does not apply to any product whose serial number or manufacture date has been defaced.
This Limited Warranty does not cover any product used in an application that uses chemically treated water such as a
pool or spa heater.
Limitation on Warranties
No one is authorized to make any other warranties on behalf of Rinnai America Corporation. Except as expressly
provided herein, there are no other warranties, expressed or implied, including, but not limited to warranties of
merchantability or fitness for a particular purpose, which extend beyond the description of the warranty herein.
Any implied warranties of merchantability and fitness arising under state law are limited in duration to the period of
coverage provided by this Limited Warranty, unless the period provided by state law is less. Some states do not allow
limitations on how long an implied Limited Warranty lasts, so the above limitation may not apply to you.
Rinnai shall not be liable for indirect, incidental, special, consequential or other similar damages that may arise,
including lost profits, damage to person or property, loss of use, inconvenience, or liability arising from improper
installation, service or use. Some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation may not apply to you.
This Limited Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
www.rinnai.us/warranty
30
Commercial Hybrid System
EXTEND THE LABOR COVERAGE UNDER YOUR LIMITED WARRANTY*
Ultra Series C199i and C199e
REGISTRATION REQUIRED*
Rinnai is providing the opportunity to extend your Rinnai Standard Limited Warranty on labor only on Ultra Series models
C199i and C199e if you register within 30 days of purchase of your unit. Products not registered will still be covered under
the Rinnai standard product limited warranty as provided in the Installation and Operation Instruction manual which
comes with this product. Warranty information is also available on Rinnai's web site at www.rinnai.us.
COMMERCIAL APPLICATIONS:
The limited warranty period on the labor coverage for models C199i and C199e Tankless Water Heaters installed in a commercial application is extended for an additional 12 months (a total of 24 months labor coverage
from date of purchase), when used in a commercial hot water application, if the product is registered within 30
days of purchase at www.rinnai.us/product-registration or by calling 1-866-RINNAI-1 (746-6241), except registration is not required in California and Quebec.
ADDITIONAL CONDITIONS OF EXTENDING THE LABOR COVERAGE UNDER THE LIMITED WARRANTY:
*
1.
The labor coverage does NOT extend if the C199i and C199e Tankless Water Heater is used for structure heating or in a closed
loop application.
2.
If the product is installed on a circulation system, the circulation system must be controlled through an aquastat / thermostat,
or timer, or an on-demand system, or the limited warranty will not be extended.
Only applicable if product is registered within 30 days of purchase and the other conditions are met. Note
to California and Quebec Residents, and residents of other jurisdictions that prohibit warranty benefits
conditioned on registration, registration is not required to obtain longer warranty periods and failure to
register does not diminish your warranty rights. www.rinnai.us/warranty
Commercial Hybrid System
31
NOTES
32
Commercial Hybrid System
NOTES
Commercial Hybrid System
33
100000397(08)
3/2017
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