John Wood 110-310-510 User Manual
On-Demand Water Heater
Installation Manual and Owner ’s Guide
Models
•110
510 model
only
Gas Tankless Water Heater
Suitable for potable water heating and space-heating*
* Please refer to local codes for space-heating compliance.
TM
•310
•510
If the information in these
instructions is not followed
exactly, a fire or explosion may
result causing property dam-
WARNING
- 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 electric 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.
age, personal injury or death.
FEATURING
• ENDLESS HOT WATER
• ON-DEMAND USAGE
• COMPACT, SPACE SAVING
• ENERGY CONSERVATION
• COMPUTERIZED SAFETY
• NO PILOT LIGHT
• EASY-LINK SYSTEM*
*(510 models only)
If you have any questions,
please call or write to:
GSW Water Heating
599 Hill Street West
Fergus, ON Canada N1M 2X1
Toll Free: 1-888-479-8324
320576-000
REV. 00 (10-11)
Table of Contents
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
SAFETY GUIDELINES. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Included Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Optional Items. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
High-altitude Installations . . . . . . . . . . . . . . . . . . . . . . 10
Venting Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General
Exhaust venting
Venting Illustrations
Vent Termination Clearances
Gas supply and gas pipe sizing . . . . . . . . . . . . . . . . . 15
General
Gas Connections
Measuring Inlet Gas Pressure
Water Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Pressure Relief Valve
Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . 16
Remote Controller Connections . . . . . . . . . . . . . . . . . 17
Pump Control Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Easy-link System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
General
Easy-Link Connection Procedures
APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Space-Heating Applications . . . . . . . . . . . . . . . . . . . . 20
Recirculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Dual-purpose Hot Water Heating . . . . . . . . . . . . . . . . 21
INITIAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
OPERATING SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . .23
NORMAL OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . .25
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Temperature Settings . . . . . . . . . . . . . . . . . . . . . . . . . 25
Without Remote Controller
Dipswitch Settings For Temperature
Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Freeze protection system . . . . . . . . . . . . . . . . . . . . . . 26
Maintenance and service . . . . . . . . . . . . . . . . . . . . . . 27
Unit Draining and Filter Cleaning
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Single Unit Installations
Easy-Link System
Fault Analysis Of Error Codes . . . . . . . . . . . . . . . . . . 31
COMPONENTS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . .34
Case Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
110
310 & 510
Burner Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
110
310 & 510
Computer Board Assembly. . . . . . . . . . . . . . . . . . . . . 37
110 & 310
Water Way Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 37
110
Computer Board Assembly. . . . . . . . . . . . . . . . . . . . . 37
510
Water Way Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 37
310
Water Way Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 38
510
Water outlet section . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Water inlet section. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
OUTPUT TEMPERATURE CHART . . . . . . . . . . . . . . . . .41
110 Models
310 Models
510 Models
LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . .42
2
SPECIFICATIONS
Model 110 310 510
Natural Gas Input
(Operating Range)
Propane Input
(Operating Range)
Gas Connection 3/4” NPT
Water Connections 3/4” NPT
Water Pressure 15 - 150 psi*
Inlet
Pressure
Manifold
Pressure**
Weight 13Kg (28.7 lbs.) 15.7Kg (34.6 lbs.)
Dimensions
Ignition Electric Ignition
Natural Gas Min. 5.0” WC, Max. 10.5” WC
Propane Min. 8.0” WC, Max. 14.0” WC
Natural Gas 2.0” WC 2.0” WC 2.0” WC
Propane 2.5” WC 3.7” WC 3.7” WC
520mm(H) x 351mm(W) x 170mm(D)
Supply 120 VAC, 60 Hz
Operation 73.1 W / 0.61 A 87.6 W / 0.73 A 89.8 W / 0.75 A
Min.: 19,500 BTU/h
Max.: 140,000 BTU/h
Min.: 19,500 BTU/h
Max.: 140,000 BTU/h
H20.5” x W13.8” x D6.7”
Min.: 11,000 BTU/h
Max.: 190,000 BTU/h
Min.: 11,000 BTU/h
Max.: 190,000 BTU/h
520mm(H) x 351mm(W) x D216mm(D)
H20.5” x W13.8” x D8.5”
Min.: 11,000 BTU/h
Max.: 199,000 BTU/h
Min.: 11,000 BTU/h
Max.: 199,000 BTU/h
Standby 6.2 W / 0.05 A 6.2 W / 0.05 A 6.2 W / 0.05 A
Electric
Freeze-Protection 111 W / 0.93 A 111 W / 0.93 A 111 W / 0.93 A
Consumption
* 40 psi or above is recommended for maximum flow.
** The Manifold Pressure is the factory setting and generally should not need adjustment.
NOTE:
• Check the rating plate to ensure this product matches your specifications.
• The manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice
and without incurring obligations.
3
INTRODUCTION
This manual provides information necessary for the
•
installation, operation, and maintenance of the water
heater.
The model description is listed on the rating plate which
•
is attached to the front panel of the water heater.
Please read all installation instructions completely before
•
installing this product.
If you have any problems or questions regarding this
•
equipment, consult with the manufacturer or its local
representative.
This equipment is an on-demand, tankless water heater
•
designed to efficiently supply endless hot water for your
needs.
The 110, 310, & 510 models are to be installed indoors
•
only (direct-vent convertible).
The principle behind tankless water heaters is simple:
•
Exhaust vent
collar
Heat
exchanger
SAFETY GUIDELINES
Safety Defi nitions
Indicates an imminently hazardous situation which, if not avoided, will result in death
or serious injury.
DANGER
Indicates an imminently hazardous situation which, if not avoided, could result in
death or serious injury.
WARNING
Indicates an imminently hazardous situation which, if not avoided, could result in
minor or moderate injury.
CAUTION
Burners
Flow adjustment
valve
Fan motor
Computer
board
Thermistor
Hot Water
Outlet
Cold Water
Inlet
Thermistor
Gas Valves
Flow sensor
Gas
Inlet
* This diagram illustrates tankless water heater design
concepts only and does not accurately represent to the
water heater’s physical description.
A hot water tap is turned on.
1.
Water enters the heater.
2.
The water flow sensor detects the water flow.
3.
The computer initiates the fan motor and sends a signal
4.
to the igniter to create an ignition spark.
The gas ignites and flames appear within the burner
5.
chamber.
Water circulates through the heat exchanger and then
6.
gets hot.
Using thermistors to measure temperatures throughout
7.
the water heater, the computer modulates the gas and
water valves to ensure proper output water temperature.
General
1. Follow all local codes, or in the absence of local codes,
follow the most recent edition of CSA B149.1 Natural
Gas and Propane Installation Code.
2. Properly ground the unit in accordance with all local
codes or in the absence of local codes, with CSA C22.1
Canada Electrical Code Part 1.
3. Carefully plan where you intend to install the water
heater. Please ensure:
Your water heater will have enough combustible air
•
and proper ventilation.
Locate your heater where water leakage will not
•
damage surrounding areas (please refer to pg. 6).
4. Check the rating plate for the correct GAS TYPE,
GAS PRESSURE, WATER PRESSURE and ELECTRIC
RATING.
* If this unit does not match your requirements, do not
install. Consult with the manufacturer.
5. If any problem should occur, turn off all hot water taps
and turn off the gas. Then call a trained technician or the
Gas Company or the manufacturer.
4
Water temperatures over 52°C (125°F)
•
can cause severe burns instantly or
death from scalding. The water temperature is set at 50°C (122°F) from the
factory to minimize any scalding risk.
Before bathing or showering always
check the water-temperature.
Do not store or use gasoline or other
•
flammables, vapors, or liquids in the
vicinity of this appliance.
Do not reverse the water and/or gas
•
connections as this will damage the gas
valves and can cause severe injury or
death. Follow the diagram on pg. 17
when installing your water heater.
Do not use this appliance if any part has
•
WARNING
been in contact with or been immersed
in water. Immediately call a licensed
plumber, a licensed gas fitter, or a professional service technician to inspect
and/or service the unit if necessary.
Do not disconnect the electrical supply if
•
the ambient temperature will drop below
freezing. The Freeze Prevention System
only works if the unit has electrical
power. The warranty will not be covered
if the heat exchanger is damaged due
to freezing. Refer to the section on the
Freeze Prevention System on pg. 28 for
more information.
INSTALLATION
8. Particles from flour, aerosols, and other contaminants
may clog the air vent or reduce the functions of the rotating fan and cause improper burning of the gas. Regularly
ensure that the area around the unit is dust- or debrisfree; regular maintenance is recommended for these
types of environment.
9. If you will be installing the water heater in a contaminated
area with a high level of dust, sand, flour, aerosols or
other contaminants/chemicals, they can become airborne and enter and build up within the fan and burner
causing damage to the water heater.
10. For the 110, 310, & 510 models:
These units may be converted to a direct-vent
•
(sealed combustion) appliance by installing a directvent conversion kit (Part No. TK-TV10) which will
bring in all required combustible air from outside the
building. When installing the direct-vent conversion
kit, please follow all instructions included with the kit.
If the water heater is used as a direct-vent appliance,
•
the unit requires a 76mm (3 in.) combustible air supply pipe. The intake pipe must be sealed airtight. Air
supply pipe can be made of ABS, PVC, galvanized
steel, corrugated aluminum, corrugated stainless
steel or Category III stainless steel.
Terminating the venting through a sidewall is recom-
•
mended for the direct-vent system.
Running the exhaust vent and the intake pipe paral-
•
lel is recommended.
Terminating the exhaust and intake on the same
•
wall/surface is recommended. Terminating in the
same pressure zone allows for pressure balancing,
which prevents nuisance shutdowns.
General
1. Follow all local codes, or in the absence of local codes,
follow the most recent edition of CSA B149.1 Natural
Gas and Propane Installation Code.
2. All gas water heaters require careful and correct installation to ensure safe and efficient operation. This manual
must be followed exactly. Read the “Safety Guidelines”
section.
3. The manifold gas pressure is preset at the factory. It is
computer controlled and should not need adjustment.
4. Maintain proper space for servicing. Install the unit so
that it can be connected or removed easily. Refer to the
"Clearances" section on pg. 7 for proper clearances.
5. The water heater must be installed in a location where
the proper amount of combustible air will be available to
it at all times without obstructions.
6. The electrical connection requires a means of disconnection, to terminate power to the water heater for servicing and safety purposes.
7. Do not install the unit where the exhaust vent is pointing
into any opening in a building or where the noise may
disturb your neighbors. Make sure the vent termination
meets the required distance by local code from any
doorway or opening to prevent exhaust from entering a
building (refer to pg. 13).
5
WARNING
Installation and service must be per-
•
formed by a qualified installer (for
example, a licensed plumber or gas
fitter), otherwise the warranty will be
void.
The installer (licensed professional)
•
is responsible for the correct installation of the water heater and for compliance with all national, state/provincial, and local codes.
The manufacturer does not recom-
•
mend installing the water heater in a
pit or location where gas and water
can accumulate.
Do not have the vent terminal pointing
•
toward any operating window, door, or
opening into a building.
Do not install next to any source of air-
•
borne debris, such as a clothes dryer,
that can cause debris to be trapped
inside the combustion chamber, unless
the system is direct-vented.
The manufacturer does not recom-
•
mend installing the water heater in an
attic due to safety issues. If you install
the water heater in an attic:
Make sure the unit will have enough
•
combustion air and proper ventilation.
Keep the area around the water
•
heater clean. When dust collects on
the flame sensor, the water heater
will shut down on an error code.
If the above conditions cannot be
•
met, use the direct vent conversion
kit TK-TV10.
Place the unit for easy access for
•
service and maintenance.
A drain pan, or other means of pro-
•
tection against water damage, is
required to be installed under the
water heater in case of leaks.
CAUTION
The warranty will not cover damage
•
caused by water quality.
Only potable water or potable water/
•
glycol mixtures can be used with
this water heater. Do not introduce
pool or spa water, or any chemically
treated water into the water heater.
Water hardness levels must not
•
exceed 7 grains per gallon (120
ppm) for single family domestic
applications or more than 4 grains
per gallon (70 ppm) for all other
types of applications. Water hardness leads to scale formation and
may affect/damage the water heater.
Hard water scaling must be avoided
or controlled by proper water treatment.
Water pH levels must be between
•
6.5 and 8.5
Well water must be treated.
•
Do not install the unit where water,
•
debris, or flammable vapors may get into
the flue terminal.
The manufacturer recommends using
•
the direct vent kit when the water
heater is installed in a beauty salon.
Some chemicals used in a beauty salon
may affect the flame sensor . Water heater may not work properly.
Although the water heater is designed to
•
operate with minimal sound, the manu-
facturer does not recommend installing the unit on a wall adjacent to a
bedroom, or a room that is intended
for quiet study or meditation, etc.
Locate your heater close to a drain
•
where water leakage will not do damage
to surrounding areas. As with any water
heating appliance, the potential for leakage at some time in the life of the product does exist. The manufacturer will not
be responsible for any water damage
that may occur. If you install a drain pan
under the unit, ensure that it will not
restrict the combustion air flow.
6
Clearances
Optional Items
Top
Side
Front
Bottom
Back
Side
Maintain all clearances around the water
heater.
Model Top Bottom Front Back Sides
110
310
510
305mm
(12 in.)
305mm
(12 in.)
305mm
(12 in.)
305mm
(12 in.)
305mm
(12 in.)
305mm
(12 in.)
610mm
(24 in.)
610mm
(24 in.)
610mm
(24 in.)
25mm
(1 in.)
25mm
(1 in.)
25mm
(1 in.)
51mm
(2 in.)
51mm
(2 in.)
51mm
(2 in.)
Model 110 310 510
TK-RE02 x x
TM-RE30 x
TK-BF01 x x x
TK-TV10 x x x
TK-PC01 x x
TK-PCJr2 x
TK-KPWL4 x x x
TK-KPWH4 x x x
TK-KPCT43 x x x
Included Accessories
Check that these items below are included with the water
heater.
Items
Installation Manual & Owner’s
Guide
Product Registration Card Qty: 1
Communication Cable
(510 models only)
Qty: 1
Qty: 1
7
1. Temperature Remote Controller: TK-RE02
2. Temperature Remote Controller: TM-RE30
3. Backflow Preventer: TK-BF01
The Temperature Remote Controller has two functions. It allows the output
temperature from the water heater to be adjusted within the range of 37°C
to 75°C (99°F to 167°F), and it also works as a diagnostic tool that will give
a concise error code whenever there is a problem with the unit. The temperature options are 75°C (99°F), 38°C (100°F), 39°C (102°F), 40 °C (104°F),
41°C (106°F), 42°C (108°F), 43°C (109°F), 44°C (111°F), 45°C (113°F), 46°C
(115°F), 47°C (117°F), 50°C (122°F), 55°C (131°F), 60°C (140°F), 70°C
(158°F), and 75°C (167°F). See the troubleshooting section for information
on possible error codes.
The Temperature Remote Controller has two functions. It allows the output
temperature from the water heater to be adjusted within the range of 37°C
to 85°C (99°F to 185°F), and it also works as a diagnostic tool that will
give a concise error code whenever there is a problem with the unit. The
temperature options are 75°C (99°F), 38°C (100°F), 39°C (102°F), 40°C
(104°F), 41°C (106°F), 42°C (108°F), 43°C (110°F), 111°F, 45°C (113°F),
46°C (115°F), 47°C (117°F), 50°C (122°F), 55°C (131°F), 60°C (140°F), 65 °C
(149°F), 70°C (158°F), 75°C (167°F), 80°C (176°F) and 85°C (185°F). See
the troubleshooting section for information on possible error codes.
The Backflow preventer prevents the backflow of air through the exhaust
vent. This helps prevent harmful exhaust gases from entering the home, as
well as helping to prevent the unit from freezing in areas where cold air can
be blown or drawn into the exhaust system. Install this vent damper in accordance with the installation instructions and any applicable codes.
4. Direct-Vent Conversion Kit: TK-TV10
5 . Pipe Covers: TK-PC01 and TK-PCJr2
This kit can be used to convert the water heater from a standard vent system
to a direct-vent (or sealed combustion) system. Install this conversion kit in
accordance with the installation instructions and any applicable codes.
The pipe cover protects the plumbing pipes to the water heater from unexpected adjustments. This pipe cover is fixed to the bottom of the water heater ,
which hides the plumbing and improves the visual aspects of the whole
installation for the water heater.
8
6. Recess box: TK-RB02
The Recess box will allow for “clean” installations. The water heater fits inside
the recess box, which hides and protects the whole water heater and plumbing. The Recess box will fit in-between most wall studs.
7. T-Vent Wall Thimble with Termination: TK-KPWL4 and TK-KPWH4
These terminations are used when venting out through the wall and are com-
patible with the T-Vent pipe system. These terminations are special stainless
steel vents for gas appliances and are UL listed as Category II, III and IV.
There are two types of terminations: the Louver termination and the Hood
termination. For different wall thicknesses, there are two ranges of lengths
available (refer to the venting brochure for details). Install these vent terminations in accordance with their installation instructions and any applicable
local codes.
Louver Termination
TK-KPWL4
Hood Termination
TK-KPWH4
8. Direct-Vent Concentric Termination: TK-KPCT43
Used when terminating direct-vent (sealed-combustion) systems, with direct-
vent models that require a 76mm (3 in.) intake and a 102mm (4 in.) exhaust.
This concentric termination provides the convenience of only having to make
one penetration through a sidewall instead of two separate penetrations
for the intake and exhaust piping. The termination includes a bird screen,
restricting small animals, pests, and foreign objects from entering into the
vent system. This sidewall termination is available in three different sizes, to
cover all ranges of wall thicknesses.
Direct-vent Concentric Termination
Part# Covering wall thickness
TK-KPCT43-1 99 - 180mm (3.9 – 7.1 in.)
TK-KPCT43-2 175 - 257mm (6.9 – 10.1 in.)
TK-KPCT43-3 249 - 330mm (9.8” – 13.0 in.)
9
High-altitude Installations
Check the elevation where your water heater is installed.
Set DIPswitches shown in the table below depending on
the altitude.
110 & 310 Models
Altitude
Switch
No. 3
Switch
No. 4
0 to
2,000 ft
(DEFAULT)
OFF ON OFF
OFF OFF ON
1
ON
8765432
ON
2,000 to
4,000 ft
1
4,000 to
6,000 ft
1
8765432
ON
Over
6,000 ft
Consult
our
Technical
Services
at 1-888-
8765432
479-8324
510 Models (Left bank of DIPswitches)
0 to
Altitude
2,000 ft
(DEFAULT)
Switch
No. 4
Switch
No. 5
The dark squares indicate the direction the DIPswitches
•
OFF ON OFF
OFF OFF ON
ON
654321
2,000 to
4,000 ft
ON
654321
ON
4,000 to
6,000 ft
6,000 ft
Consult
Technical
Services
at 1-888-
654321
479-8324
Over
our
should be set to.
110 & 310 Computer board
DIPswitches
510 Computer board
DIPswitches (Left bank)
DO NOT adjust any DIPswitches on the
right bank for the 510 models.
WARNING
Venting Instructions
General
Improper venting of this appliance can
•
result in excessive levels of carbon
monoxide which can result in severe
personal injury or death.
Improper installation can cause nausea
•
or asphyxiation, severe injury or death
DANGER
from carbon monoxide and flue gases
poisoning. Improper installation will void
product warranty.
When installing the vent system, all applicable national and local codes must be
followed. If you install thimbles, fire stops
or other protective devices and they penetrate any combustible or noncombustible
CAUTION
construction, be sure to follow all applicable
national and local codes.
The water heater must be vented in accordance with the
section “Venting of Equipment" of the latest edition of CSA
B149.1 Natural Gas and Propane Installation Code as
well as applicable local building codes.
The manufacturer recommends the “T-Vent” line manufactured by TAKAGI (Refer to “T-Vent” brochure for details).
However, the following are also UL listed manufacturers:
ProTech Systems Inc. (FasNSeal), Flex-L Inc., Z-Flex Inc.
(Z-Vent III), Metal-Fab Inc., and Heat-Fab Inc. (Saf-T Vent).
General rules for venting water heaters are:
Place the water heater as close as possible to the vent
•
terminator.
The vent collar of the water heater must be fastened
•
directly to an unobstructed vent pipe.
Do not weld the vent pipe to the water heater’s vent col-
•
lar.
Do not cut the vent collar of the unit.
•
The vent must be easily removable from the top of the
•
water heater for normal service and inspection of the
unit.
The water heater vent must not be connected to any
•
other gas appliance or vent stack.
Avoid using an oversized vent pipe or using extremely
•
long runs of the pipe.
For rooftop venting, a rain cap or other form of termina-
•
tion that prevents rain water from entering into the water
heater must be installed.
Do not common vent or connect any vent from other
•
appliances to the water heater vent.
General rules for vent terminations:
Avoid locating the water heater vent terminator near any
•
air intake devices. These fans can pick up the exhaust
flue products from the water heater and return them to
the building. This can create a health hazard.
Locate the vent terminator so that it cannot be blocked by
•
any debris, at any time. Most codes require that the terminator be at least 305mm (12 in.) above grade, but the
installer may determine if it should be higher depending
on the job site condition and applicable codes.
A proper sidewall terminator is recommended when the
•
water heater is vented through a sidewall.
Regarding the clearances from the exhaust terminator to
•
the air inlet or opening, refer to the next few pages.
10
Exhaust venting
(For the 110, 310, & 510 models)
This is a Category III appliance and must be vented accordingly. The vent system must be sealed air tight. All seams
and joints without gaskets must be sealed with high heat
resistant silicone sealant or UL listed aluminum adhesive tape having a minimum temperature rating of 177°C
(350°F). For best results, a vent system should be as short
and straight as possible.
This water heater is a Category III appliance and must be
•
vented accordingly with any 102mm (4 in.) vent approved
for use with Category III or Special BH type gas vent.
Follow the vent pipe manufacturer’s instructions when
•
installing the vent pipe.
Do not common vent this appliance with any other vented
•
appliance (Do not terminate vent into a chimney. If the
vent must go through the chimney, the vent must run all
the way through the chimney with Category III approved
or Special BH vent pipe).
When the horizontal vent run exceeds 1.5m (5 ft.), sup-
•
port the vent run at 0.9m (3 ft.) intervals with overhead
hangars.
The maximum length of exhaust vent piping must not
•
exceed 15.24m (50 ft.) (deducting 1.5m (5 ft.) for each
elbow used in the venting system). Do not use more than
5 elbows.
Venting Illustrations
(For the 110, 310, & 510 models)
For details of the optional items, refer to the Optional item
list.
Horizontal Installation Diagram:
Wall
Vertical
Condensation
Drain**
Backfl ow
Preventer*
Sidewall Vent
Terminator
Vertical Installation Diagram
Roof
Rain Cap
Max. Vertical &
Horizontal (Total) Vent
Length
Diameter
Max. No. of
Elbow
76mm (3 in.) 5 15.24m (50 ft.)
* For each elbow added, deduct 1.5m (5 ft.) from max.
vent length.
No. of
Elbows
Max. Vertical or Horizontal Length
0 15.24m (50 ft.)
1 13.7m (45 ft.)
2 12.2m (40 ft.)
5 7.6m (25 ft.)
Excludes elbow termination, rain caps, or the 76mm (3
in.) PVC Concentric Termination
Backfl ow
Preventer*
Vertical
Condensation
Drain**
Roof Flashing
11
Horizontal Installation Diagram (with direct-venting)
Wall
Vertical
Condensation
Drain**
Backfl ow
Preventer*
Sidewall Vent
Terminator
See the picture below for
detailed connection instructions
to the Direct-Vent Conversion Kit.
Vertical Installation Diagram (With direct-venting)
Roof Flashing
Rain Cap
Horizontal Installation Diagram With Direct-Vent Concentric
Termination
Wall
Direct-vent Concentric
Termination
Backfl ow
Preventer*
Roof
Roof Flashing
Vertical
Condensation
Drain**
See the picture below for
detailed connection instructions
to the Direct-Vent Conversion Kit.
Installation Diagram of Direct-Vent Conversion Kit with
water heater
Intake port of
Direct-Vent
Conversion Kit
Plate of Direct-Vent
Conversion Kit
* Backflow Preventer (Recommended for freezing weather
conditions: 2°C (36°F) and below).
** Vertical Condensation Drain must be installed accor-
dance with local codes.
12
Vent Termination Clearances
Canada U.S.A
Direct vent and other
than Direct Vent
A Clearance above grade, veranda, porch, deck, or balcony. 1 foot 1 foot 1 foot
B Clearance to window or door that may be opened 3 feet 1 foot
C Clearance to permanently closed window * * *
Vertical clearance to ventilated soffit located above the
D
vent terminator within a horizontal distance of 2 feet
(61cm) from the center line of the terminator.
E Clearance to unventilated soffit * * *
F Clearance to outside corner * * *
G Clearance to inside corner * * *
Clearance to each side of center line extended above
H
meter/regulator assembly
I Clearance to service regulator vent outlet. 3 feet * *
Clearance to non-mechanical air supply inlet to building or
J
the combustion air inlet to any other application
K Clearance to mechanical air supply inlet. 6 feet 3 feet 3 feet
Clearance above paved sidewalk or paved driveway
L
located on public property.
M Clearance under veranda, porch deck, or balcony. 1 foot * *
***
3 feet * *
3 feet 1 foot
7 feet * 7 feet
Direct
vent
Other than
Direct Vent
4 feet from below or
side opening. 1 foot
from above opening.
4 feet from below or
side opening. 1 foot
from above opening.
* For clearances not specified in CSA B149.1 Natural Gas and Propane Installation Code, please use clearances in
accordance with local installation codes and the requirement of the gas supplier.
13
Please follow all local and national codes in
regards to proper termination clearances.
In the absence of such codes, the following clearances can be used as guidelines.
CAUTION
Local codes supersede these guidelines.
For sidewall terminations
For rooftop terminations
A
A
A
610mm
(1 ft.)
305mm
(1 ft.)
Exhaust
termination
(2 ft.)
Inside
corner
For multiple-unit, directvent sidewall terminations
that combine the intake
and exhaust into a single
penetration, space each
direct-vent termination at
least 305mm (1 ft.) away
from each other, no matter
the orientation. A direct-vent
termination must also be at
least 610mm (2 ft.) away
from an inside corner (if the
adjacent wall is less than
610mm (2 ft.) of length, the
minimum required distance
away from the inside corner
305mm
For multiple sidewall
exhaust terminations (e.g.
multi-unit systems), an
exhaust termination must
be at least 305mm (1 ft.)
away from another exhaust
termination. An exhaust termination must also be at
least 610mm (2 ft.) away
from an inside corner (if the
adjacent wall is less than
610mm (2 ft.) of length, the
minimum required distance
away from the inside corner
will be equal to the length of
that adjacent wall).
will be equal to the length of
that adjacent wall).
305mm
(1 ft.)
305mm
(1 ft.)
610mm
(2ft.)
Direct vent
termination
Inside
corner
Air
intake
Exhaust
termination
Air
intake
610mm
(2 ft.)
Exhaust
termination
A
A
A: In accordance with local codes
For multiple-unit rooftop terminations (whether for stan-
dard or direct-vent installations) space all exhaust and
intake terminations in accordance with local codes. An
exhaust termination must be spaced from a wall or surface
in accordance with local codes as well. In the absence of
such a code, an exhaust termination must be a horizontal
distance of at least 610mm (2 ft.) away from a wall or
surface.
3 ft.
3 ft.
3 ft.
Air supply inlet
For direct-vent sidewall terminations that use two separate penetrations for the
intake and exhaust, distance
the intake and exhaust terminations at least 915mm
(3 ft.) away from each other,
no matter the orientation.
14
2 ft.
Exhaust
termination
Exhaust and/or direct-vent
sidewall terminations should
be at least 610mm (2 ft.)
away from an opposite surface/wall. Do not place the
termination directly in front
of an opening into a building.
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