Rinnai RU199iP Handleiding

Rinnai Ketel & boiler RU199iP

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Place
Model/Serial #
Label Here
Located in Manual Bag
U334-0771X02(00)
INTERNAL (INDOOR) MODELS:
RU199i (REU-N3237FF-US)
RU180i (REU-N2934FF-US)
RU160i (REU-N2530FF-US)
RU130i (REU-N2024FF-US)
EXTERNAL (OUTDOOR) MODELS:
RU199e (REU-N3237W-US)
RU180e (REU-N2934W-US)
RU160e (REU-N2530W-US)
RU130e (REU-N2024W-US)
Tankless Water Heater (Residential)
Installation and Operation Manual
ANSI Z21.10.3 ● CSA 4.3
06000012336368
Rinnai Tankless Water Heater Installation and Operation Manual 2
WARNING
If the information in these instructions is not followed exactly, a re 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 instruc
tions.
– If you cannot reach your gas supplier, call the re department.
• Installation and service must be performed by a trained and qualied professional, service agency
or the gas supplier.
Assurez-vous de bien suivre les instructions données dans cette notice pour réduire au
minimum le risque d’incendie ou d’explosion ou pour éviter tout dommage matériel, toute
blessure ou la mort.
• -Ne pas entreposer ni utiliser d’essence ou ni d’autres vapeurs ou liquides inammables à proxim
ité de cet appareil ou de tout autre appareil.
• QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ :
– Ne pas tenter d’allumer d’appareil.
– -Ne touchez à aucun interrupteur ; ne pas vous servir des téléphones se trouvant dans le bâti
ment.
– Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions du
fournisseur.
– Si vous ne pouvez rejoindre le fournisseur, appelez le service des incendies.
• L’installation et l’entretien doivent être assurés par un installateur ou un service d’entretien quali-
é ou par le fournisseur de gaz.
AVERTISSEMENT
Full-length French and Spanish versions available online at rinnai.us
Rinnai Tankless Water Heater Installation and Operation Manual 3
Contents
1. Welcome .......................................................................................................................................... 5
2. Safety ............................................................................................................................................... 6
2.1 Safety Symbols ....................................................................................................................... 7
2.2 Safety Precautions .................................................................................................................. 7
3. About the Water Heater 9 ..................................................................................................................
3.1 Front View ...............................................................................................................................9
3.2 Bottom View ..........................................................................................................................10
3.3 Components ......................................................................................................................... 11
3.4 Specications ........................................................................................................................12
3.5 Dimensions ........................................................................................................................... 13
3.6 Accessories .......................................................................................................................... 15
4. Install the Water Heater ................................................................................................................ 17
4.1 Installation Guidelines 17 ..........................................................................................................
4.2 What You Will Need 18 ..............................................................................................................
4.3 Choose an Installation Location 19 ............................................................................................
4.4 Mount the Water Heater to the Wall 24 ......................................................................................
4.5 Vent the Water Heater 26 ..........................................................................................................
4.6 Connect Water Supply .......................................................................................................... 50
4.7 Install the Isolation Valves ....................................................................................................51
4.8 Install Pressure Relief Valve ................................................................................................. 52
4.9 Connect Condensate Drain 54 ..................................................................................................
4.10 Connect the Gas Supply .......................................................................................................57
4.11 Connect the Power Supply ................................................................................................... 60
4.12 Congure Parameter Settings ............................................................................................. 61
4.13 External Pump with Circ-Logic ............................................................................................. 63
4.14 Post-Water Heater Installation Checklist 64 .............................................................................
5. Operation ....................................................................................................................................... 66
5.1 Safety Precautions ................................................................................................................66
5.2 Operating Instructions 68 ...........................................................................................................
5.3 Control Panel 69 ........................................................................................................................
Rinnai Tankless Water Heater Installation and Operation Manual 4
5.4 Setting the Temperature .......................................................................................................70
5.5 Performance Data .................................................................................................................71
5.6 Diagnostic Codes 73 ..................................................................................................................
6. Maintenance .................................................................................................................................. 76
6.1 Maintenance ......................................................................................................................... 76
6.2 Cleaning and Inspecting the Air Filter (Indoor Units Only) .................................................... 78
6.3 Flushing the Heat Exchanger ............................................................................................... 80
6.4 Draining the Water Heater 81 ....................................................................................................
7. Appendices ................................................................................................................................... 82
7.1 Massachusetts State Gas Regulations 82 .................................................................................
7.2 Wiring Diagram ..................................................................................................................... 84
7.3 Ladder Diagram .................................................................................................................... 85
7.4 Pressure Drop and Water Flow Curves ................................................................................ 86
7.5 Guidelines for Additional Temperature Controllers ............................................................... 87
8. Warranty ........................................................................................................................................ 88
Rinnai Tankless Water Heater Installation and Operation Manual 5
ANSI American National Standards
Institute
BTU British Thermal Unit
DHW Domestic Hot Water
GPM Gallons per minute
LP Liquid Propane
NG Natural Gas
PP Polypropylene
PRV Pressure Relief Valve
PSI Pounds per square inch
W.C. Inches water column
To The Consumer
• You must read the entire manual to prop-
erly operate the water heater and to have
regular maintenance performed.
• Keep this manual for future reference.
• As when using any appliance generating
heat, there are certain safety precautions
you should follow. See section “2.1 Safety
Precautions” for detailed safety precau-
tions.
• Be sure your water heater is installed by a
trained and qualied professional.
• If installing in the state of Massachusetts,
you must read section “7.1 Massachusetts
State Gas Regulations” in this manual.
Acronyms and Abbreviations
Table 1 provides a list of common acronyms and
abbreviations used in this manual:
Thank you for purchasing a Rinnai Tankless
Water Heater. Before installing and operating this
water heater, be sure to read these instructions
completely and carefully to familiarize yourself with
the water heater’s features and functionality.
To The Installer
• It is recommended that a trained and
qualied professional who has attended a
Rinnai training class complete the instal-
lation. The warranty may be voided due to
any improper installation.
• A trained and qualied professional 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 tankless water
heaters. Training on Rinnai Tankless
Water Heaters is accessible at
www.trainingevents.rinnai.us
• Read all instructions in this manual before
installing the water heater. The water heat-
er must be installed according to the exact
instructions in this manual.
• Proper installation is the responsibility of
the trained and qualied professional.
• When installation is complete, leave this
manual with the water heater (for internal/
indoor units) or give the manual directly to
the consumer.
1.
1.
1.
1. 1. W
W
W
Welcome
elcome
elcome
elcomeWelcome
Table 1
WARNING AVERTISSEMENT
Rinnai Tankless Water Heater Installation and Operation Manual 6
• -Assurez-vous de bien suivre les instruc
tions données dans cette notice pour
réduire au minimum le risque d’incendie
ou d’explosion ou pour éviter tout dom-
mage matériel, toute
• -Assurez-vous de bien suivre les instruc
tions données dans cette notice pour
réduire au minimum le risque d’incendie
ou d’explosion ou pour éviter tout dom-
mage matériel, toute blessure ou la mort.
• Ne pas entreposer ni utiliser d’essence ou
ni d’autres vapeurs ou liquides inamma-
bles à proximité de cet appareil ou de tout
autre appareil.
• QUE FAIRE SI VOUS SENTEZ UNE
ODEUR DE GAZ :
– Ne pas tenter d’allumer d’appareil.
– Ne touchez à aucun interrupteur ; ne
pas vous servir des téléphones se
trouvant dans le bâtiment.
– -Appelez immédiatement votre fournis
seur de gaz depuis un voisin. Suivez
les instructions du fournisseur.
– -Si vous ne pouvez rejoindre le fournis
seur, appelez le service des incendies.
• L’installation et l’entretien doivent être
assurés par un installateur ou un service
d’entretien qualié ou par le fournisseur
de gaz.
• -Les panneaux d’avertissement de ce man
uel sont ici pour éviter de vous blesser et
d’autres personnes. Suivez- les explicite-
ment.
• If the information in these instructions is
not followed exactly, a re or explosion
may result causing property damage,
personal injury, or death.
• -Do not store or use gasoline or other am
mable 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 trained and qualied professional,
service agency or the gas supplier.
• The warning signs in this manual are here
to prevent injury to you and others. Please
follow them explicitly.
2.
2.
2.
2. 2. Sa
Sa
Sa
Saf
f
f
fe
e
e
ety
ty
ty
tySafety
WARNING
WARNING
CAUTION
Rinnai Tankless Water Heater Installation and Operation Manual 7
2.2 Safety Precautions
The following precautions apply to the trained and
qualied professional and consumer. Read and
follow all instructions in this section.
DO NOT adjust the
internal gas valve.
The design is such that adjustment is not re-
quired. Warranty may be voided if the internal gas
valve is adjusted.
• -Before operating, smell all around the ap
pliance area for gas. Be sure to smell next
to the oor because some gas is heavier
than air and will settle on the oor.
• Keep the area around the appliance clear
and free from combustible materials,
gasoline, and other ammable vapors and
liquids.
• -Combustible construction refers to adja
cent walls and ceiling and should not be
confused with combustible or ammable
products and materials. Combustible and/
or ammable products and materials
should never be stored in the vicinity of
this or any gas appliance.
• -Always check the water temperature be
fore entering a shower or bath.
• To protect yourself from harm, before per-
forming maintenance:
– Turn o󰀨 the electrical power supply by
unplugging the power cord or by turning
o󰀨 the electricity at the circuit breaker.
(The temperature controller does not
control the electrical power.)
– -Turn o󰀨 the gas at the manual gas con
trol valve, usually located immediately
below the water heater.
– Turn o󰀨 the incoming water supply.
This can be done at the isolation valve
immediately below the water heater or
by turning o󰀨 the water supply to the
building.
Safety alert symbol. Alerts you to
potential hazards that can kill or hurt you
and others.
Indicates an imminently
hazardous situation which,
if not avoided, will result in
personal injury or death.
DANGER
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.
Indicates an imminently
hazardous situation which,
if not avoided, will result in
personal injury or death.
2.1 Safety Symbols
Rinnai Tankless Water Heater Installation and Operation Manual 8
• DO NOT operate the water heater without
the front panel installed. The front panel
should only be removed for service/main-
tenance or replacing internal components.
• BURN HAZARD. Hot exhaust and vent
may cause serious burns. Keep away from
the water heater. Keep small children and
animals away from the water heater.
• Hot water outlet pipes leaving the water
heater can be hot to touch.
• -Do not store or use gasoline or other am
mable vapors and liquids in the vicinity of
this or any other appliance.
(Ne pas entreposer ni utiliser d’essence ou
ni d’autres vapeurs ou liquides inamma-
bles à proximité de cet appareil ou de tout
autre appareil.)
• -Install the vent system per local and na
tional codes.
• Do not install this water heater above
10,200 ft
(3,109 m).
• Do not obstruct combustion air to the
water heater.
• Failure to properly vent this appliance
can result in death, personal injury and/or
property damage.
• Rinnai recommends that every home have
a carbon monoxide (CO) alarm in the hall-
way near bedrooms in each sleeping area.
Check batteries monthly and replace them
annually.
– Use only your hand to turn the manual
gas control valve. Never use tools. If
the manual gas control valve will not
turn by hand, do not try to repair it; call
a trained and qualied professional.
Force or attempted repair may result in
a re or explosion.
• Do not use this appliance if any part
has been under water. Immediately call
a trained and qualied professional to
inspect the appliance and to replace any
part of the control system and any manual
gas control valve which has been under
water.
(N’utilisez pas cet appareil s’il a été plunge
dans l’eau, même partiellement. Faites
inspecter l’appareil par un licence pro-
fessionnelle et remplacez toute partie du
système de contrôle et toute commande
qui ont été plongés dans l’eau.)
• Do not use substitute materials. Use only
parts certied for the appliance.
• -Should overheating occur or the gas sup
ply fail to shut o󰀨, turn o󰀨 the manual gas
control valve to the appliance.
(En cas de surchaue ou si l’alimentation
en gaz ne s’arrête pas, fermez manuelle-
ment le robinet d’arrêt de l’admission de
gaz.)
• Only trained and qualied professionals
are permitted to adjust parameter settings.
• Do not use an extension cord or adapter
plug with this appliance.
• -Any alteration to the appliance or its con
trols can be dangerous and will void the
warranty.
• Proper venting is required for the safe
operation of this appliance.
• -Flammable liquids such as cleaning sol
vents, aerosols, paint thinners, adhesives,
gasoline and propane must be handled
and stored with extreme care. These
ammable liquids emit ammable vapors
and when exposed to an ignition source
can result in a re hazard or explosion.
Flammable liquids should not be used or
stored in the vicinity of this or any other
gas appliance.
Rinnai Tankless Water Heater Installation and Operation Manual 9
3.
3.
3.
3. 3. About the W
About the W
About the W
About the Wa
a
a
at
t
t
ter Hea
er Hea
er Hea
er Heat
t
t
ter
er
er
erAbout the Water Heater
3.1 Front View
Indoor Outdoor
Figure 1: Front view
Topics in this section
• Front View
• Bottom View
• Components
• Specications
• Dimensions
• Accessories
Controller
Piping Connections
Vent
Connections
Exhaust
Duct
Rinnai Tankless Water Heater Installation and Operation Manual 10
3.2 Bottom View
Gas Inlet
Hot Water
Outlet
Cold Water
Inlet
Pressure Relief
Valve
Figure 2: Bottom view
Rinnai Tankless Water Heater Installation and Operation Manual 11
3.3 Components
Air Intake
Burner Assembly
Ignition Unit
PC Board Cover
Control Panel
Water Flow Servo
Valve
Heat Exchanger
Gas Valve
Flue Gas Exhaust
Air Inlet Filter
Fan with Integrated
Venturi
Silencer
Intake
Exhaust
Figure 3: Components
Rinnai Tankless Water Heater Installation and Operation Manual 12
3.4 Specifications
Indoor Units Outdoor Units
RU199i RU180i RU160i RU130i RU199e RU180e RU160e RU130e
Minimum Gas
Consumption
Btu/h
15,000
Maximum Gas
Consumption
Btu/h
199,000 180,000 160,000 130,000 199,000 180,000 160,000 130,000
Flow Rate1
(Min-Max)
0.26-9.8 GPM
(1.0-37 L/min)
0.26-9.0 GPM
(1.0-34 L/min)
0.26-8.0 GPM
(1.0-30 L/min)
0.26-6.6 GPM
(1.0-24 L/min)
0.26-9.8 GPM
(1.0-37 L/min)
0.26-9.0 GPM
(1.0-34 L/min)
0.26-8.0 GPM
(1.0-30 L/min)
0.26-6.6 GPM
(1.0-24 L/min)
Max Flow Rate
with Parameter
Adjustment
11 GPM
(42 L/min)
10 GPM
(38 L/min)
9 GPM
(34 L/min)
7 GPM
(26 L/min)
11 GPM
(42 L/min)
10 GPM
(38 L/min)
9 GPM
(34 L/min)
7 GPM
(26 L/min)
Weight 64 lb (29 kg) 62 lb (28 kg) 64 lb (29 kg) 62 lb (28 kg)
Sound Level 48 dB 47 dB 53 dB 52 dB
Electrical Data
Normal 84 W 65 W 52 W 38 W 81 W 62 W 49 W 36 W
Standby 1.3 W
With Freeze
Protection 148 W 152 W
Max Current 4 Amps
Fuse 10 Amps
Temperature
Setting
Minimum 98°F (37°C)
Maximum: Default: 120°F (49°C) With Parameter Adjustment: 140°F (60°C)
Bypass Flow
Control Electronic
Gas Supply
Pressure2
Natural Gas 3.5 in. w.c. - 10.5 in. w.c.
Propane 8.0 in. w.c. - 13.5 in. w.c.
Type of Appliance Super-High-E󰀩ciency (Condensing), Tankless, Temperature Controller, Continuous Flow Gas Hot Water System
Ignition System Direct Electronic Ignition
Electric
Connections
Appliance: AC 120 Volts, 60Hz
Temperature Controller: DC 12 Volts (Digital)
Water Supply
Pressure
Optimal water pressure: 50 PSI (Recommended 60-80 PSI for maximum performance)
Maximum: 150 PSI
Remote Control
Cable Non-Polarized Two Core Cable (Minimum 22 AWG)
ENERGY STAR®
Qualied Yes
Complies with
South Coast
Air Quality
Management
District 14 ng/J
or 20 ppm NOx
emission levels
Yes
1
Minimum ow may vary slightly depending on the temperature setting and the inlet water temperature. Minimum activation ow is 0.4 GPM (1.5 L/min).
2 The maximum gas supply pressure must not exceed the value specied by the manufacturer.
Rinnai products are continually being updated and improved; therefore, specications are subject to change without prior notice.
Table 2: Specications
Rinnai Tankless Water Heater Installation and Operation Manual 13
3.5 Dimensions
Measurements: in. (mm)
Indoor Models
(RU199i, RU180i, RU160i, and RU130i)
Front View Side View
Outdoor Models
(RU199e, RU180e, RU160e, and RU130e)
Front View Side View
Vent Connection:
2 in. (51 mm) nominal
PVC/Polypropylene or
3 in./5 in. Concentric.
Figure 4: Indoor Dimensions
Figure 5: Outdoor Dimensions
Rinnai Tankless Water Heater Installation and Operation Manual 14
5.6. (142)
5.10 (129)
7.75 (197)
5.25 (133)
3.5 (89)
2.8 (71)
7.6 (193)
6.2 (157)
1.22 (31)
.36 (9)
Cold Inlet
Gas
Hot Outlet
Condensate
Drain Pressure
Relief Valve
Connection Connection Size
Gas 3/4 in. NPT
Cold Inlet 3/4 in. NPT
Hot Outlet 3/4 in. NPT
Condensate Drain 1/2 in. NPT
Pressure Relief Valve M33 Thread
3.5.1 Supply Connections
Measurements: in. (mm)
Figure 6: Supply Connections
Table 3: Supply Connections
Rinnai Tankless Water Heater Installation and Operation Manual 15
Product Product Description Image
Room Air Screen
Part #: 108000105
Recommended air lter/screen for use in
room air applications only.
Condensate Neutralizer
Part #: 804000074
Neutralizes the condensate generated by
the water heater.
ScaleCutter
Part #: 103000038
Filters and reduces the amount of scale
entering the water heater allowing for
greater water heater longevity.
ScaleCutter Rell
Cartridge
Part #: 103000039
Rell cartridge for the ScaleCutter lter
assembly.
Drain Down Kit
Part #: 104000059
Provides freeze protection by immediate-
ly draining the water heater upon loss of
power.
Additional Controller
Part #: MC-601-BK
MC-601-W
MC-195T-US
Additional controllers are available for
user convenience.
Recess Box
Part #: RGB-CTWH-4
Allows an external (outdoor) water heater
to be recessed into a wall.
Pipe Cover
Part #: PCD07-SM
Encloses the piping below the water
heater for aesthetic purposes.
Control-R™ Wi-Fi
Module (And
Accessories)
Part #: RWM101
Controls On-Demand recirculation, re-
motely adjust temperatures, and commu-
nicates with the service provider portal.
The Control-R™ Wi-Fi Module and MC-
195T-US controller are not compatible
accessories and must not be installed
together.
3.6 Accessories
Numerous optional accessories are available for purchase for your Rinnai Tankless Water Heater. Listed
below are some commonly purchased accessories. For a complete list of accessories, visit www.rinnai.us.
For questions, or to purchase an accessory, contact your local Rinnai dealer/distributor or Rinnai
Customer Care at 1-800-621-9419.
Table 4: Accessories
Rinnai Tankless Water Heater Installation and Operation Manual 16
Product Product Description Image
Recirculation Pump
Part #: RWMGTK03
A pump system can be incorporated with
Rinnai Circ-Logic recirculation technology
in a dedicated recirculation system.
External Pump Cable
Part #: 105000250
Provides electrical connections for exter-
nal recirculation pump control.
EZConnect™ Cable
Part #: REU-EZC-2
Electronically connects two water heaters
and allows them to function as one hot
water source.
DPS/MIS Switch
Part #: REU-OPU3
The Domestic Priority Switch (DPS) func-
tion provides domestic hot water priority
for combination tankless water heater/ air
handler applications.
The Maintenance Indication Switch (MIS)
function provides tankless water heater
monitoring via systems such as Building
Management System (BMS).
Rinnai Tankless Water Heater Installation and Operation Manual 17
4.
4.
4.
4. 4. Ins
Ins
Ins
Install the W
tall the W
tall the W
tall the Wa
a
a
at
t
t
ter Hea
er Hea
er Hea
er Heat
t
t
ter
er
er
erInstall the Water Heater
THIS SECTION IS INTENDED FOR THE
INSTALLER
Installer qualications: A trained and qualied
professional must install the appliance, inspect
it, and leak test the water heater before use. The
warranty may be voided due to any improper
installation. The trained and qualied professional
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; and training in installation of tankless water
heaters. Training for Rinnai Tankless Water
Heaters is accessible online at
www.trainingevents.rinnai.us.
4.1 Installation
Guidelines
When installing the water heater, follow these
guidelines:
• This water heater is certied for installation
in residential applications and manufac-
tured (mobile) homes.
• -This water heater is suitable for combina
tion water heating and space heating and
not suitable for space heating applications
only.
• 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.
If installed in a manufactured home, the
installation must conform with the Manu-
factured Home Construction and Safety
Standard, Title 24 CFR, Part 3280 and/
or CAN/SCA Z240 MH Series, Mobile
Homes.
• 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 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.). For
system testing at pressures less than or
equal to 1/2 psi (3.5 kPa) (13.84 in W.C.)
the appliance must be isolated from the
gas supply piping by closing its individual
manual shuto󰀨 valve.
• You must follow the installation instructions
and those in section “4.5 Vent the Water
Heater” for adequate combustion air and
exhaust.
• If a water heater is installed in a closed
water supply system, such as one having
a backow preventer in the cold water sup-
ply line, means shall be provided to control
thermal expansion. Contact the water sup-
plier or local plumbing inspector on how to
control thermal expansion.
• -Should overheating occur or the gas sup
ply fail to shut o󰀨, turn o󰀨 the manual gas
control valve to the appliance.
(En cas de surchaue ou si l’alimentation
en gaz ne s’arrête pas, fermez manuelle-
ment le robinet d’arrêt de l’admission de
gaz.)
• Combustion air must be free of chemicals,
such as chlorine or bleach, that produce
fumes. These fumes can damage com-
ponents and reduce the life of your appli-
ance.
Topics in this section
• Installation Guidelines
• What you will need
• Choose Installation Location
• Mount Water Heater to the Wall
• Vent Water Heater
• Connect Water Supply
• Install Isolation Valves
• Install Pressure Relief Valve
• Connect Condensate Drain
• Connect Gas Supply
• Connect Power Supply
• Congure Parameter Settings
• Connect External Pump with Circ-Logic
• Post-Installation Checklist
Rinnai Tankless Water Heater Installation and Operation Manual 18
DO NOT
• DO NOT install the following internal
(indoor) water heaters outdoor: RU199i,
RU180i, RU160i, or RU130i.
• DO NOT install the following external
(outdoor) water heaters indoor: RU199e,
RU180e, RU160e, or RU130e.
• DO NOT install the water heater in an area
where water leakage of the unit or con-
nections will result in damage to the area
adjacent to the appliance or to lower oors
of the structure. When such locations can-
not be avoided, it is recommended that a
suitable drain pan, adequately drained, be
installed under the water heater. The pan
must not restrict combustion air ow.
• DO NOT install the water heater in an area
with negative air pressure.
• DO NOT obstruct the ow of combustion
and ventilation air.
• DO NOT use chemically treated water (i.e.
chlorinated water or salt water for pools or
spas) in the appliance.
• DO NOT use substitute parts that are not
authorized for this appliance.
4.2 What You Will
Need
4.2.1 Items Included
Unpack the Rinnai Tankless Water Heater
package and verify the following contents are
included. If any items are missing, contact your
local dealer/distributor or call Rinnai Customer
Care at 1-800-621-9419.
• Rinnai Tankless Water Heater
• Wall Mounting Bracket (for internal/indoor
water heaters only)
• Pressure Relief Valve and Adapter
• Isolation Valve Kit (for quick isolation of
the water heater for service and/or mainte-
nance)
• Literature Bag
– Tankless Water Heater Installation and
Operation Manual (this manual)
– Wall Mounting Bracket Template (for
internal/indoor water heaters only)
– Model/Serial Number Labels (with
printed QR code)
• Controller Cable (for additional controller
connection)
• Vent screens (x2) and vent screen screws
(x2) (for internal/indoor water heaters
only). The vent screen prevents debris and
other objects from entering the terminal.
One vent screen is for the intake; the other
is for the exhaust.
• Self-Tapping Screws (x2) (for internal/
indoor water heaters only)
4.2.2 Items Needed (Field-
Supplied)
• Pipe wrenches (x2)
• Phillips Head screwdriver
• Wire Cutters
• Gloves
• Safety glasses
• Level
• Soap or gas leak detector solution
• Approved venting
• Teon tape (recommended) or pipe
compound
• Pipe insulation
• Hammer drill with concrete bits
• Saw
• Threading machine with heads and oiler
• Core drill with diamond head
• Torch set
• Copper tubing cutter
• Steel pipe cutter
• Heat tape
• Electrical wire
• Concrete wall anchors
• Optional pipe cover
• PVC glue/cement and primer
• 2 conductor 22 AWG wire for controller
Rinnai Tankless Water Heater Installation and Operation Manual 19
4.3 Choose an
Installation
Location
When selecting an installation location, you
must ensure that all water heater and venting
clearances will be met and that the vent length will
be within required limits. Consider the installation
environment, water quality, and the need for
freeze protection. Requirements for the gas line,
water lines, electrical connection, and condensate
disposal can be found in their respective
installation sections in this manual.
4.3.1 Water Quality
Guidelines
This section provides information on the
importance of water quality to the Rinnai Tankless
Water Heater. The information is intended to serve
as a general guide only and is not a complete list
of water quality guidelines.
Consideration of care for your water heater should
include evaluation of water quality. The water must
be potable, free of corrosive chemicals, sand,
dirt, or other contaminants. It is up to the trained
and qualied professional to ensure the water
does not contain corrosive chemicals or elements
that can a󰀨ect or damage the Rinnai Tankless
Water Heater. Water that contains chemicals
exceeding the levels listed below can damage the
Rinnai Tankless Water Heater. Replacement of
components due to water quality damage is not
covered by the warranty.
If you install this water heater in an area that is
known to have hard water or that causes scale
build-up, the water must be treated and may
require a more frequent ushing schedule. This
water heater includes a service indicator (Service
Soon, ). When selected in the parameter SS
settings, an code will display on the controller SS
indicating that it is time to ush and service
the water heater. Scale build-up is caused by
hard water and can be accelerated if the water
heater is set at a high temperature. Rinnai o󰀨ers
Southeastern Filtration’s “ScaleCutter Water
Conditioning System” that o󰀨ers superior lime
scale prevention and corrosion control.
4.3.2 Environment
Air surrounding the water heater, venting, and vent
termination(s) is used for combustion and must
be free of any compounds that cause corrosion of
internal components.
These include corrosive compounds that are
found in aerosol sprays, detergents, bleaches,
cleaning solvents, oil-based paints/varnishes, and
refrigerants. The air in beauty shops, dry cleaning
stores, photo processing labs, and storage areas
for pool supplies often contains these compounds.
Therefore, it is recommended that external
(outdoor) models be used for these locations
where possible. In applications utilizing room air
where there are high levels of particulates, Rinnai
o󰀨ers a room air screen.
The water heater, venting, and vent termination(s)
should not be installed in any areas where the air
may contain these corrosive compounds.
*Source: Part 143 National Secondary Drinking Water
Regulation
Contaminant Maximum Level
Total Hardness Up to 200 mg/L
Aluminum * Up to 0.2 mg/L
Chlorides * Up to 250 mg/L
Copper * Up to 1.0 mg/L
Dissolved Carbon
Dioxide (CO2) Up to 15.0 mg/L
Iron * Up to 0.3 mg/L
Manganese * Up to 0.05 mg/L
pH * 6.5 to 8.5
TDS (Total Dissolved
Solids) * Up to 500 mg/L
Zinc * Up to 5 mg/L
Table 5: Water Quality Guidelines
Rinnai Tankless Water Heater Installation and Operation Manual 20
4.3.3 Internal (Indoor) Water
Heaters
• Install the water heater as far away as
possible from any air inlet vents. Corro-
sive fumes, sometimes found in hair/ nail
salons, spas, or other industries exposed
to toxic fumes, may be released through
these vents when not in operation. Chemi-
cals that are corrosive in nature should not
be stored or used near the water heater or
vent termination. This requirement applies
to internal (indoor) and external (outdoor)
water heater.
• In coastal regions, the water heater should
be installed so that it is sheltered/protected
from exposure to sea breeze. Exposure to
salty spray or breeze can cause corrosion
of the water heater.
• DO NOT install the water heater in areas
where combustion air might be contami-
nated with chemicals.
• DO NOT use room air in applications
where the indoor air is corrosive. Install
the water heater as direct vent in a sealed
closet so that it is protected from the po-
tential of contaminated indoor air.
• Install the water heater as far away as
possible from any air inlet vents. Corro-
sive fumes, sometimes found in hair/ nail
salons, spas, or other industries exposed
to toxic fumes, may be released through
these vents when not in operation. Chemi-
cals that are corrosive in nature should not
be stored or used near the water heater or
vent termination. This requirement applies
to internal (indoor) and external (outdoor)
water heaters.
4.3.4 External Water Heaters
and Vent Terminations
• Install the water heater as far away as
possible from exhaust vent hoods and
dryer vents.
• In coastal regions, the water heater should
be installed so that it is sheltered/protected
from exposure to sea breeze. Exposure to
salty spray or breeze can cause corrosion
of the water heater.
• Damage and repair due to corrosive
compounds in the air is not covered by
warranty.
• Install the water heater as far away as
possible from any air inlet vents. Corro-
sive fumes, sometimes found in hair/ nail
salons, spas, or other industries exposed
to toxic fumes, may be released through
these vents when not in operation. Chemi-
cals that are corrosive in nature should not
be stored or used near the water heater or
vent termination. This requirement applies
to internal (indoor) and external (outdoor)
water heaters.
Rinnai Tankless Water Heater Installation and Operation Manual 21
4.3.5 Freeze Protection
Make sure that in case of freezing weather the water heater and its water lines are protected to prevent
freezing. Damage due to freezing is not covered by the warranty.
When connected to a 120-volt power supply, the water heater will not freeze when the outside air
temperature is as cold as -22°F (-30°C) for internal (indoor) models or -4°F (-20°C) for external (outdoor)
models, when protected from direct wind exposure. Because of the “wind-chill” e󰀨ect, any wind or
circulation of the air on the water heater will reduce its ability to protect itself from freezing.
In the event of a power failure and/or gas interruption at temperatures below freezing, the water heater
should manually be drained of all water to prevent freezing damage. In addition, drain the condensate
trap, drain line and pressure relief valve.
Loss of freeze protection may result in water damage from a burst heat exchanger or water lines.
The water heater may be drained manually. However, it is highly recommended to install the optional
Drain Down Kit accessory that will enable the water heater to immediately drain upon loss of power (the
condensate trap and pressure relief valve are not a󰀨ected by the Drain Down Kit and must be manually
drained).
The freeze protection features will not prevent the external piping and valves from freezing. It is
recommended that hot and cold water pipes be insulated. Pipe cover enclosures may be packed with
insulation for added freeze protection.
Figure 7: Freeze Protection Piping Diagram
Legend
Vacuum Breaker
Vacuum Breaker
Drain Valve
Pressure Relief Valve
Union
Check Valve
Ball Valve
Solenoid Valve
1/2 in. Normally Open Solenoid Valve
Route Drain Per Local Code
Cold Water Supply LineHot Water
Supply
Line
3/4 in. Normally Closed Solenoid Valve
Vacuum Breaker
Freeze Protection Piping Diagram
Rinnai Tankless Water Heater Installation and Operation Manual 22
4.3.6 Clearances
Location Clearances to Combustibles
and Non-Combustibles
Top 2 in. (51 mm)
0 in. from vent components
Bottom/Ground 12 in. (305 mm)
Front 0 in.
Clearance for servicing is 24 in. (610 mm)
in front of water heater
Back 0 in.
Sides (Left and Right) 2 in. (51 mm)
Add 0.25 in. (6.35 mm) for recess box
Vent
(Internal/Indoor Models)
0 in.
Front Exhaust
(External/Outdoor Models)
24 in. (610 mm)
Side
Top Top
Side
BottomBottom
FrontFront
Figure 8: Clearances
Table 6: Clearances
Rinnai Tankless Water Heater Installation and Operation Manual 23
4.3.7 Installation Location Checklist
Use this checklist to ensure you have selected the correct location for the water heater.
□The water heater is not exposed to corrosive compounds in the air.
□The water heater location complies with the required clearances.
□The planned combustion air and exhaust termination locations meet the required clearances.
□The water supply does not contain chemicals or exceed total hardness that will damage the
heat exchanger.
□A standard 3 prong 120 VAC, 60 Hz properly grounded wall outlet (for internal/indoor models)
or other 120 VAC, 60 Hz source is available.
□
The installation must conform with local codes or, in the absence of local codes, with the
National Fuel Gas Code, ANSI Z221.3/NFPA 54 Natural Gas and Propane , or the
Installation Code, CSA B149.1
Rinnai Tankless Water Heater Installation and Operation Manual 24
3. Insert the top bracket into the wall mounting
bracket. Make sure the wall mounting bracket
is attached to the wall and can hold the weight
of the water heater before you fully let go.
4.4 Mount the Water Heater to the Wall
4.4.1 Mount the Internal
(Indoor) Water Heater
You Will Need:
• Rinnai Tankless Water Heater
(Internal/Indoor Model)
• Wall Mounting Bracket
Supplied by Installer:
• Level
• 4 Screws for mounting bracket installation
Use appropriate screws for type of wall
constructions.
Instructions:
1. Hold the wall mounting bracket up against the
wall and use a level to make sure the bracket
is even. Proper operation requires the water
heater to be level.
2. Use four screws to secure the wall mounting
bracket to the wall (two screws on the far left
side and two screws on the far right side).
Use the appropriate screws for the wall
construction to secure the mounting bracket to
the wall between two studs.
Figure 10: Secure the bracket
Figure 11: Mount top bracket
Figure 9: Level the bracket
Rinnai Tankless Water Heater Installation and Operation Manual 25
4. Securely screw the top and bottom brackets
into the wall, making sure the screws are ush
with the wall.
• Use any of the holes in the top and bottom
brackets.
• -Make sure the securing method is su󰀩
cient to support the weight of the water
heater. Refer to the water heater weight in
section “3.4 Specications.”
Top Bracket
Bottom
Bracket
4.4.2 Mount the External
(Outdoor) Water Heater
to the Wall
You Will Need:
• Rinnai Tankless Water Heater
(External/Outdoor Model)
Supplied by Installer:
• Level
• -Screws for top and bottom bracket instal
lation
Use appropriate screws for type of wall
construction.
Instructions:
1. Securely screw the top and bottom brackets
into the wall, making sure the screws are ush
with the wall.
• Use any of the holes in the top and bottom
brackets.
• -Use a level (placed horizontally or ver
tically) to make sure the water heater is
straight. Proper operation requires the
water heater to be level.
• -Make sure the securing method is su󰀩
cient to support the weight of the water
heater. Refer to the water heater weight in
section “3.4 Specications.”
Figure 12: Mount bottom bracket
Figure 13: Mount water heater
The water heater must be installed in an
upright position. Do not install the water
heater upside down or on its side.
IMPORTANT
The water heater must be installed in an
upright position. Do not install the water
heater upside down or on its side.
IMPORTANT
Rinnai Tankless Water Heater Installation and Operation Manual 26
4.5 Vent the Water Heater
4.5.1 Guidelines
• Internal water heaters can be installed as
direct vent or non-direct vent applications.
• When installed as Direct Vent, refer to the
“Direct Vent Approved Vent Manufactur-
ers and Products” section (within section
“4.5.4 1. Direct Vent”) for a complete list of
approved vent manufacturers and prod-
ucts.
• When installed as Non-Direct Vent (Room
Air), the vent must be Category IV, listed
by a national recognized testing agency or
schedule 40 PVC when accepted by local
codes.
• Exhaust must be directly vented to the
outside. Combustion air can be provided
from outside (Direct Vent) or from room air
(Non-Direct Vent).
• If using room air (non-direct vent) for
combustion, ensure the required volume
of indoor air is available according to the
National Fuel Gas Code, ANSI Z223.1/
NFPA 54.
• Avoid dips or sags in horizontal vent runs
by installing supports per the vent manu-
facturer’s instructions.
• Support horizontal vent runs every 4 ft
(1.2 m) and all vertical vent runs every 6
ft (1.83 m) or as per vent manufacturer’s
instructions or local code requirements.
• Venting should be as direct as possible
with a minimum number of pipe ttings.
• -For manufactured vent systems, vent con
nections must be rmly pressed together
so that the connections form an air tight
seal. Follow the venting manufacturer’s
instructions.
• Refer to the PVC/CPVC manufacturer for
appropriate ttings, solvents or joining
methods.
• The vent piece connected to the water
heater must be secured with 1 self-tapping
screw.
• Refer to the instructions of the vent system
manufacturer for component assembly
instructions.
• 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 trained and
qualied professional or the local inspec-
tor.
• Any issues resulting from improper vent
installation will not be covered by warranty.
• DO NOT use cellular core PVC/CPVC.
• DO NOT use Radel or galvanized material
to vent this appliance.
• DO NOT cover non-metallic vent pipe and
ttings with thermal insulation.
• DO NOT combine vent components from
di󰀨erent manufacturers.
• DO NOT reduce the vent diameter. Vent
diameter cannot be less than 2 in. (51
mm).
• 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 com
mon vented with Schedule 40 PVC/CPVC
or with a Rinnai certied common vent
system.
WARNING
Rinnai Tankless Water Heater Installation and Operation Manual 27
4.5.2 Venting Installation
Sequence
1. Install the water heater.
2. Determine the termination method—horizontal
or vertical, concentric, or twin pipes, etc.
3. Determine proper location for wall or roof
penetration for each termination.
4. Install termination assembly as described
in this manual or in the vent manufacturer’s
installation instructions.
5. Install air and vent piping from water heater to
termination.
6. Slope horizontal exhaust run towards the
water heater 1/4 in. per foot. DO NOT slope
combustion air pipe towards water heater.
7. Install vent supports and brackets allowing
for movement from expansion, or as per vent
manufacturer’s instructions or local code
requirements.
8. Install vent screen (supplied with water
heater) on PVC combustion air and exhaust
termination elbows as illustrated below.
• Press vent screen inside of termination
piece/elbow.
• Secure vent screen to the elbow with
screw provided.
4.5.3 Termination
Considerations
Check to determine whether local codes
supersede the following clearances:
• Avoid termination locations near a dryer
vent.
• Avoid termination locations near commer-
cial cooking exhaust.
• Avoid termination locations near any air
inlets.
• You must install a vent termination at least
12 in. above the ground or anticipated
snow level.
The vent for this appliance shall not terminate:
• Over public walkways.
• Near so󰀩t vents or crawl space vents or
other areas where condensate or vapor
could create a nuisance or hazard or
cause property damage.
• Where condensate or vapor could cause
damage or could be detrimental to the
operation of regulators, pressure relief
valves, or other equipment.
Listed below are important considerations for
locating vent termination under a so󰀩t (ventilated
or unventilated or eave vent; or to a deck or
porch):
• Do not install vent termination under a
so󰀩t vent such that exhaust can enter the
so󰀩t vent.
• Install vent termination such that exhaust
and rising moisture will not collect under
eaves. Discoloration to the exterior of the
building could occur if installed too close.
• Do not install the vent termination too
close under the so󰀩t where it could pres-
ent recirculation of exhaust gases back
into the combustion air part of the termina-
tion.
Figure 14: Vent screen
Rinnai Tankless Water Heater Installation and Operation Manual 28
4.5.4 Venting Options
Three types of venting options are available:
1. Direct Vent (Concentric Pipe and Twin Pipe)
2. Non-Direct Vent (Room Air and External)
3. Common Vent (Indoor Unit Only. Direct Vent and Non/Direct/Room Air Vent)
Concentric Pipe
Combustion air and exhaust
vent directly through a single
concentric connection. Hot
exhaust exits through the interior
tube, while combustion air enters
through the outer layer.
Twin Pipe
Combustion air and
exhaust vent directly
through separate
penetrations.
Room Air
Room air is used for combustion
while exhaust vents to the
outside.
External (Outdoor)
External (outdoor) water
heater.
Direct Vent
Multiple water heaters sharing a combustion
air header and a separate exhaust header that
vents directly through separate penetrations to
the outside.
Non-Direct (Room Air) Vent
Multiple water heaters using room air for
combustion while sharing an exhaust header
that vents directly to the outside.
Figure 15: Concentric Pipe Figure 16: Twin Pipe
Figure 17: Room Air Figure 18: External
Figure 19: Common Vent, Direct Vent Figure 20: Common Vent, Room Air
Rinnai Tankless Water Heater Installation and Operation Manual 29
1. Direct Vent (Concentric Pipe and Twin Pipe)
Direct Vent Approved Vent Manufacturers and Products
Following is a list of vent components and terminations for Direct Vent installations. Install the correct
venting for your model according to the venting manufacturer’s instructions and the guidelines below. The
information below is correct at time of publication and is subject to change without notice. Contact the
vent manufacturer for questions related to the vent system, products, part numbers and instructions.
Manufacturer Phone Web Site
Ubbink 800-621-9419 www.rinnai.us
Centrotherm www.centrotherm.us.com877-434-3432
Heat-Fab 800-772-0739 www.heatfab.com
Metal Fab 800-835-2830 www.metal-fabinc.com
IPEX U.S.: 800-463-9572
Canada: 866-473-9462
www.ipexamerica.com
www.ipexinc.com
DuraVent 800-835-4429 www.duravent.com
Royal www.royalbuildingproducts.com800-232-5690
Ecco Manufacturing www.eccomfg.com877-955-4805
DiversiTech www.diversitech.com800-995-2222
Manufacturer
Manufacturer
Part number
Product
Description
Diagram
Horizontal
Vertical
Equivalent
Length (ft)
2 in. /4 in. CONCENTRIC VENT TERMINATIONS
UBBINK
US/ Canada
229031/ 229012NPP
229032/ 229013NPP
2/4 Condensing Horizontal Termination Kit 12 in.
2/4 Condensing Horizontal Termination Kit 21 in. 5
224359/224356NPP 2/4 Condensing Roof Discharge Termination 20
in. above roof 5
710202NPP 2/4 Condensing 90 Degree Diverter Nose (Use
with Wall Terminal) 5
710215NPP 2/4 Condensing 45 Degree Diverter Nose (Use
with Wall Terminal) 5
IPEX
1906005, 197040
FGV Concentric Vent Kit (16 in. length) 20
1906005PVC
(Order from Rinnai)
196105, 197033
FGV Concentric Vent Kit (16 in. length) 20
196105PVC
(Order from Rinnai)
196125
FGV Concentric Vent Kit (40 in. length) 20
196125PVC
(Order from Rinnai)
Table 7: Approved Vent Manufacturers
Table 8: Approved Vent Products
Rinnai Tankless Water Heater Installation and Operation Manual 30
1. Direct Vent (Concentric Pipe and Twin Pipe)
Manufacturer
Manufacturer
Part number
Product
Description
Diagram
Horizontal
Vertical
Equivalent
Length (ft)
2 in. /4 in. CONCENTRIC VENT TERMINATIONS (continued)
ROYAL
52CVKGS6502 PVC Concentric Vent Kit 2 in. x 16 in. 20
52CVKGVS6502-28 PVC Concentric Vent Kit 2 in. x 28 in. 20
52CVKGVS6502-40 PVC Concentric Vent Kit 2 in. x 40 in. 20
CENTROTHERM
ICRT2439 2 in. x 4 in. Concentric Roof Termination 20
DURAVENT
2PPS-VKL/VK-TCL FGV Concentric Vent Kit (16 in. length) 20
2PPS-HKL 2 in. x 4 in. Horizontal Termination
Kit-Concentric 20
ECCO
190288 2 in. x 4 in. Concentric Horizontal
Termination 5
190295 2 in. x 4 in. Concentric Vertical
Termination 5
DIVERSITECH
CVENT-2 2 in. x 4 in. Concentric Horizontal
Termination 20
Rinnai Tankless Water Heater Installation and Operation Manual 31
1. Direct Vent (Concentric Pipe and Twin Pipe)
Manufacturer
Manufacturer
Part number
Product
Description
Diagram
Horizontal
Vertical
Equivalent
Length (ft)
3 in. /5 in. CONCENTRIC VENT TERMINATIONS
UBBINK
223176PP
223177PP
3/5 Condensing Horizontal Termination Kit 12 in.
3/5 Condensing Horizontal Termination Kit 21 in. 5
223186PP 3/5 Condensing Horizontal Diverter Termination
Kit 19 in. 16
224047PP 3/5 Condensing Raised Horizontal Termination
Kit 24
184162PP 3/5 Condensing Roof Discharge Termination 20
in. above roof 5
IPEX
196006, 197009
FGV Concentric Vent Kit 3 in. x 20 in. 20
196006PVC
(Order from Rinnai)
196106, 197107
FGV Concentric Vent Kit 3 in. x 32 in. 20
196106PVC
(Order from Rinnai)
196116, 197117
FGV Concentric Vent Kit 3 in. x 44 in. 20
196116PVC
(Order from Rinnai)
ROYAL
52CVKGVS6503(PVC)/
52CVKGVSF9003(CPVC) PVC/CPVC Concentric Vent Kit 3 in. x 20 in. 20
52CVKGVS6503-32(PVC)/
52CVKGVSF9003-32(CPVC) PVC/CPVC Concentric Vent Kit 3 in. x 32 in. 20
52CVKGVS6503-44(PVC)/
52CVKGVSF9003-44(CPVC) PVC/CPVC Concentric Vent Kit 3 in. x 44 in. 20
HEAT-FAB
SC03HT Horizontal Termination Adapter 20
SC03VT Vertical Termination Adapter 20
CENTRO
THERM
ICRT3539 3 in./5 in. Concentric Roof Termination PPs-UV 20
Rinnai Tankless Water Heater Installation and Operation Manual 32
1. Direct Vent (Concentric Pipe and Twin Pipe)
Manufacturer
Manufacturer
Part number
Product
Description
Diagram
Horizontal
Vertical
Equivalent
Length (ft)
3 in. /5 in. CONCENTRIC VENT TERMINATIONS (Continued)
METAL-FAB
3CGRLSV Vertical Adapter 1
3CGRLSH 6Horizontal Adapter
3CGRVT Vertical Termination 5
3CGRHT 3 in. x 5 in. Vertical Termination Cap Kit-
Concentric 16
DURAVENT
3PPS-VKL/VK-TCL 3 in. x 5 in. Vertical Termination Cap Kit-
Concentric 20
3PPS-HKL 3 in. x 5 in. Horizontal Termination Kit-
Concentric 20
ECCO
190388 3 in. x 5 in. Concentric
Horizontal Termination 5
190395 3 in. x 5 in. Concentric Vertical Termination 5
DIVERSITECH
CVENT-3 3 in. x 5 in. Concentric
Horizontal Termination 20
Rinnai Tankless Water Heater Installation and Operation Manual 33
1. Direct Vent (Concentric Pipe and Twin Pipe)
Manufacturer
Manufacturer
Part number
Product
Description
Diagram
Horizontal
Vertical
Equivalent
Length (ft)
2 in. TWIN PIPE TERMINATIONS
CENTROTHERM
ISELL0287UV 62 in. 87° Long PPS-UV
ISTT0220 2 in. Termination Tee 6
ISLPT0202 2 in. Low Prole Wall Termination 5
DURAVENT
2PPS-HTPL 2 in. Twin Pipe Termination 10
2PPS-HSTL 2 in. Single Horizontal Termination 6
2PPS-TBL 2 in. Black UV Resistant Tee 5
IPEX
196984
FGV PVC Low Prole Termination Kit 5
196984PVC
(Order from Rinnai)
081216 FGV PVC Wall Termination Kit 16
ROYAL
52SWVKGVS6502 PVC Side Wall Vent Kits 5
52WTVKGVS6502 PVC Wall Vent Kits 16
DIVERSITECH
HVENT-2 2 in. Low Prole Horizontal Vent Kit 5
Rinnai Tankless Water Heater Installation and Operation Manual 34
1. Direct Vent (Concentric Pipe and Twin Pipe)
Manufacturer
Manufacturer
Part number
Product
Description
Diagram
Horizontal
Vertical
Equivalent
Length (ft)
3 in. TWIN PIPE TERMINATIONS
CENTROTHERM
ISELL0387UV 63 in. 87° Long PPS-UV
ISTT0320 3 in. Termination Tee 6
ISLPT0303 3 in. Low Prole Wall Termination 5
DURAVENT
3PPS-HTPL 3 in. Twin Pipe Termination 10
3PPS-HSTL 3 in. Single Horizontal Termination 5
3PPS-TBL 3 in. Black UV Resistant Tee 6
IPEX
196985
FGV PVC Low Prole Termination Kit 5
196985PVC
(Order from Rinnai)
081219 FGV PVC Wall Termination Kit 16
ROYAL
52SWVKGVS6503 PVC Side Wall Vent Kits 5
52WTVKGVS6503 PVC Wall Vent Kits 16
DIVERSITECH
HVENT-3 3 in. Low Prole Horizontal Vent Kit 5
Rinnai Tankless Water Heater Installation and Operation Manual 35
Product
Description
Diagram
Horizontal
Vertical
Equivalent
Length (ft)
Vent Screen N/A
Tee 5
90° Elbow 5
45° Elbow 2.5
Approved PVC/CPVC Vent and Air Piping Material
Item Material Standard for Installation in North America
United States Canada
Thermoplastic Piping Materials
Vent or Combustion Air
Intake Pipe and Fittings
PVC Schedule 40 ANSI/ASTM D1785
Thermoplastic vent pipe
must be certied to ULC
S636. Intake pipe may be
of the materials listed in
this table.
PVC-DWV ANSI/ASTM D2665
CPVC Schedule 40 ANSI/ASTM F441
PVC Pipe Cement and
Primer
PVC ANSI/ASTM D2564
CPVC Schedule 40 ANSI/ASTM F493
Non-Metallic Vent Material
ABS SCH 40 DWV ASTM-D2661 or CSA B181.1 NOT PERMITTED
PVC Vent Screens
Termination Vent Screens Polyethylene
• 2 in. Vent Screens (included in carton box) (IPEX
Part Number: 196050)
• 3 in. Vent Screens (IPEX Part Number: 196051)
Exhaust piping must be of solid core material. Refer to the PVC/CPVC manufacturer for appropriate
ttings, solvents or joining methods.
Table 11: Approved Venting Materials by Manufacturer
Manufacturer Vent Material
Ubbink PVC (Outer Vent), Polypropylene (Inner Vent)
Centrotherm Polypropylene
Heat-Fab Metal
Metal Fab Metal
IPEX PVC/CPVC
DuraVent Polypropylene
Royal PVC
ECCO Manufacturing Polypropylene
DiversiTech PVC/CPVC
Table 9: Various 2 in. or 3 in. Schedule 40 PVC/CPVC Terminations
Table 10: Approved PVC/CPVC Vent and Air Piping Material
Rinnai Tankless Water Heater Installation and Operation Manual 36
4.5.5 Direct Vent (Concentric and Twin Pipe):
Termination Clearances
The information below applies to Concentric and Twin Pipe.
Canadian Installations 1
(CSA B149.1)
U.S. Installations 2
(ANSI Z223.1/NFPA 54)
Ref Direct Vent (Indoor Unit) Direct Vent (Indoor Unit)Description
A Clearance above grade, veranda, porch, deck, or balcony 12 in. (30 cm) 12 in. (30 cm)
B Clearance to window or door that may be opened 36 in. (91 cm) 12 in. (30 cm)
C * *Clearance to permanently closed window
D Vertical clearance to ventilated sot, located above the terminal within
a horizontal distance of 2 ft (61 cm) from the center line of the terminal
* *
E * *Clearance to unventilated sot
F Clearance to outside corner * *
G Clearance to inside corner *
H Clearance to each side of center line extended above meter/regulator
assembly
3 ft. (91 cm) within a height of
15 ft. (4.6 m)
12 in.
I *Clearance to service regulator vent outlet 3 ft. 91 cm)
J Clearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other appliance
36 in. (91 cm) 12 in. (30 cm)
K Clearance to a mechanical air supply inlet 6 ft (1.83 m) 3 ft (91 cm) above if within 10 ft (3 m)
horizontally
LClearance above paved sidewalk or paved driveway located on public
property 7 ft (2.13 m) [1]
Vents for Category II and IV
appliances cannot be located above
public walkways or other areas
where condensate or vapor can
cause a nuisance or hazard.
M *Clearance under veranda, porch, deck, or balcony 12 in. (30 cm) [2]
Clearance to opposite wall is 24 in. (60 cm).
[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 oor.
[3] If locally adopted installation codes specify clearances dierent than those
illustrated, then the most stringent clearance shall prevail.
*Clearances are in accordance with local installation codes and the
requirements of the gas supplier. (Dégagement conforme aux codes
d’installation locaux et aux exigences du foumisseur de gaz.)
SNOW
TERMINATION
Clearance in
Ref. A also
applies to
anticipated
snow line
Regulator vent outlet
AIR SUPPLY INLET
VENT TERMINAL
AREA WHERE TERMINA
IS NOT PERMITTTED
X
V
Figure 21: Direct Vent Termination Clearances
Table 12
Notes: 1In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
2In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
I
Rinnai Tankless Water Heater Installation and Operation Manual 37
1. Direct Vent (Concentric Pipe)
Concentric Pipe Overview
Combustion air and exhaust vent directly
through a single concentric connection.
Hot exhaust exits through the interior tube,
while combustion air enters through the
outer layer.
Combustion
air
Exhaust
Combustion
air
Figure 22: Concentric Pipe Termination Clearances
12 in.
(0.30 m)
12 in.
(0.30 m)
60 in. (1.52 m) ver�cally
between terminals
12 in. (0.30 m)
Figure 24: Between terminals at
dierent levels
Figure 25: Between terminals at same
level
All terminations (horizontal and/or vertical) must terminate 12 in. (0.30 m) above grade or anticipated
snow level.
Corner
Figure 23: Concentric Pipe
Rinnai Tankless Water Heater Installation and Operation Manual 38
Concentric Pipe: Installation
Instructions
1. Remove and discard screw from concentric
ue connection.
2. Remove exhaust adapter ring (discard for
concentric venting congurations.)
3. Install the concentric vent. Ensure it is properly
seated.
4. Secure the vent pipe to the concentric ue
connection with the supplied screw.
Concentric
Vent
Mount Concentric Pipe Through Wall
If venting through an exterior wall, align the wall
mounting bracket template (located in literature
bag) to the wall and follow instructions on the
template for appropriate vent hole location. Use
a level to make sure the wall mounting bracket is
even and level.
Wall Mounting
Bracket Template
Level
Wall Mounting
Bracket
Table 13: Concentric Pipe: Vent Applications
Horizontal Wall Terminations
2 in. x 4 in.
3 in. x 5 in.
Vertical Roof
Terminations
2 in. x 4 in.
and
3 in. x 5 in.
Table 14: Concentric Pipe: Maximum Vent Length
Concentric Vent Maximum Equivalent Length
Vent Sizes 2 in. x 4 in. 3 in. x 5 in.
Vent Lengths 65 ft (20 m) 150 ft (46 m)
• 45° elbow is equivalent to 3 ft (1 m)
• 90° elbow is equivalent to 6 ft (2 m)
Figure 29
Figure 26
Figure 27
Figure 28
Figure 30
Install the venting termination according to the
diagrams and instructions in this manual. Slope
the venting 1/4 in. per foot toward the appliance
according to the vent manufacturer’s installation
instructions. Dispose of condensate per local
codes.
IMPORTANT
Rinnai Tankless Water Heater Installation and Operation Manual 39
1. Direct Vent (Twin Pipe)
Twin Pipe Overview
Combustion air and exhaust vent directly through separate penetrations.
Twin Pipe Termination Clearances
Exhaust
12 in. (0.30 m)
minimum above
combustion air
opening
12 in. (0.30 m)
minimum 12 in. (0.30 m)
minimum
Combustion
Air
12 in. (0.30 m) above
grade or anticipated
snow level
Roof
Figure 32: Twin Pipe Vertical
Termination of Multiple Water Heaters
Indicates area in which intake cannot be installed.
Minimum clearance for
Ground/Grade/Snow Level
Intake
60 in.
min
12 in.
min
12 in.
min
12 in.
min
12 in.
min
12 in.
min
IntakeIntake
Exhaust
Figure 33: Horizontal Vent and Combustion
Air Piping
Figure 31
Rinnai Tankless Water Heater Installation and Operation Manual 40
1. Direct Vent (Twin Pipe)
Twin Pipe Installation Instructions
The water heater is equipped with a 2 in. (51 mm)
pipe connection. With the use of a pipe reducer,
installers can use a 3 in. (76 mm) pipe for the
combustion air and exhaust.
1. Remove and discard the screw from the
combustion air vent connection.
2. Remove and discard the combustion air vent
cap.
3. Install the combustion air vent pipe. Ensure it
is properly seated.
Secure the combustion air vent pipe to the
combustion air vent connection with the
supplied screw.
4. Install the exhaust vent pipe. Ensure it is
properly seated.
Secure the exhaust vent pipe to the exhaust
adapter ring with the supplied screw.
Combustion Air Vent Pipe
Supplied screw
Exhaust Vent Pipe
DO NOT apply
PVC glues,
solvents, or cleaners to the water heater’s
combustion air or exhaust gasket
connections. Failure to correctly assemble the
components according to these
instructions may result in property
damage, personal injury, or death.
Supplied screw
Figure 34
Figure 35
Figure 36
Figure 37
WARNING
Rinnai Tankless Water Heater Installation and Operation Manual 41
This conguration requires the use of a Concentric Vent
Termination
2 in. or 3 in. PVC/
CPVC IPEX/ Royal
Concentric Side Wall
Termination Conguration
This conguration requires the use of a Concentric Vent
Termination
2 in. or 3 in. PVC/CPVC
IPEX/ Royal Concentric Vertical
Termination Conguration
2 in. or 3 in. Schedule
40 PVC/CPVC or ABS Snorkel
Termination Conguration
2 in. or 3 in. Schedule 40
PVC/CPVC or ABS Standard
upside down “U” Vertical
Termination Conguration
2 in. or 3 in. Schedule
40 PVC/CPVC or ABS Elbow
or Tee Side Wall
Termination Conguration
2 in. or 3 in. Schedule
40 PVC/CPVC or ABS Tee
Vertical Termination
Conguration
2 in. or 3 in. PVC
Low Prole Termination
Conguration
Exhaust and
combustion air
MUST NOT be
brought together
into a single
PVC pipe using
a pipe tting.
1. Direct Vent (Twin Pipe)
Twin Pipe Example Vent Applications
Slope horizontal exhaust 1/4 in. per foot towards the water heater. DO NOT slope combustion air pipe
towards the water heater.
Single
Pipe
Combustion
Air Exhaust
Twin Pipe Maximum Vent Length
Table 16:Twin Pipe Maximum Equivalent Length
Vent Sizes 2 in. (51 mm) 3 in. (76 mm)
Vent Lengths 65 ft (20 m) 150 ft (46 m)
• 45° elbow is equivalent to 3 ft (1 m)
• 90° elbow is equivalent to 6 ft (2 m)
Table 15: Twin Pipe Example Vent Applications
WARNING
Rinnai Tankless Water Heater Installation and Operation Manual 42
2. Non-Direct Vent (Room Air and External)
Room Air and External Termination Clearances
Canadian Installations 1
(CSA B149.1)
U.S. Installations2
(ANSI Z223.1/NFPA 54)
Ref Other than direct vent Description (Outdoor unit and/or Room Air)
Other than direct vent
(Outdoor unit and/or Room Air)
AClearance above grade, veranda, porch, deck, or balcony 12 in. (30 cm) 12 in. (30 cm)
BClearance to window or door that may be opened 36 in. (91 cm)
4 ft (1.2 m) below or to side of opening; 1 ft
(300 mm) above opening
C * *Clearance to permanently closed window
DVertical clearance to ventilated so󰀩t, located above the terminal within
a horizontal distance of 2 ft (61 cm) from the center line of the terminal * *
E * *Clearance to unventilated so󰀩t
F Clearance to outside corner * *
G Clearance to inside corner * 12 in.
HClearance to each side of center line extended above meter/regulator
assembly
3 ft. (91 cm) within a height 15 ft.
(4.6 m)
*
I *Clearance to service regulator vent outlet 3 ft. (91 cm)
JClearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other appliance 36 in. (91 cm) 4 ft (1.2 m) below or to side of opening; 1 ft
(300 mm) above opening
KClearance to a mechanical air supply inlet 6 ft (1.83 m) 3 ft (91 cm) above if within 10 ft
(3 m) horizontally
LClearance above paved sidewalk or paved driveway located on public
property
7 ft (2.13 m) [1]
Vents for Category II and IV appliances
cannot be located above public walkways
or other areas where condensate or vapor
can cause a nuisance or hazard.
M *Clearance under veranda, porch, deck, or balcony 12 in. (30 cm) [2]
Clearance to opposite wall is 24 in. (60 cm).
[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 oor.
[3] If locally adopted installation codes specify clearances di󰀨erent than those
illustrated, then the most stringent clearance shall prevail.
*Clearances are in accordance with local installation codes and the
requirements of the gas supplier. (Dégagement conforme aux codes
d’installation locaux et aux exigences du foumisseur de gaz.)
SNOW
TERMINATION
Clearance in
Ref. A also
applies to
anticipated
snow line
Regulator vent outlet
AIR SUPPLY INLET
VENT TERMINAL
AREA WHERE TERMINA
IS NOT PERMITTTED
X
V
Figure 38: Room Air and External Termination Clearances
Notes: 1In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.
2In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.
Table 17
I
Rinnai Tankless Water Heater Installation and Operation Manual 43
Termination Clearances for External (Outdoor) Water Heaters
36 in. (0.91 m) to ventilated or unventilated
so󰀩t or eve vent; or to a deck or porch
60 in. (1.52 m) vertically between terminals
2 in.
12 in.
(0.30 m)
Corner
Exhaust Termination Clearances for Internal (Indoor) Room Air Applications
60 in. (1.52 m) vertically between terminals
12 in.
12 in.
(0.30 m)
Corner
Figure 39
Figure 40
• Installation of Non-Direct Vent (Room Air) must use listed category IV venting.
• All terminations (horizontal and/or vertical) must terminate 12 in. above grade or anticipated
snow level.
NOTE

Product specificaties

Merk: Rinnai
Categorie: Ketel & boiler
Model: RU199iP

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