GSW WATER HEATING
A GSW Company
599 Hill Street West
Fergus, ON, Canada N1M 2X1
DIRECT VENT GAS FIRED WATER HEATER
INSTALLATION AND OPERATING INSTRUCTIONS
Read these instructions thoroughly before starting
TABLE OF CONTENTS
I)
Installation & Location ............................................1
II) Replacement Parts Listing ....................................2
III) Vent Connections................................................3-5
IV) Gas Connections....................................................5
V) Water Pipe Connections ........................................5
VI) Temperature & Pressure ....................................5-6
VII) Lighting & Operating Instructions........................7-9
VIII) Service And Maintenance ....................................10
IX) Combo Heating ....................................................11
X) Warranty ..............................................................12
PLEASE RETAIN THESE INSTRUCTIONS IN A
SAFE LOCATION FOR FUTURE
FOR YOUR SAFETY
• Do not store or use gasoline or other
flammable vapours and liquids in the
vicinity of this or any other
appliance.
• Installation and service must be
performed by a qualified installer,
service agency or the gas supplier.
WARNING: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manual. For assistance or additional
information, consult a qualified
installer, service agency, or the gas
supplier.
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.
WARNING: If the information in
these instructions is not followed
exactly, a fire or explosion may
result causing property damage,
personal injury or death.
• If you cannot reach your gas supplier,
call the fire department.
PART NO. 70999 REV. G (03-12)
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SEAL TIGHTLY
1
2
14
OPTION 2
7
10
13
OPTION 1
3
11
6”
12
9
8
6
Location of pressure relief and/or expansion tank if a check
valve or pressure reducing valve is in the cold water supply to
the house.
4
5
Use OPTION 1 or 2 whichever is more convenient. If pressure
relief valve is used, select one with a setting 25 psi below valve
rating at tank.
1. COLD WATER INLET
2. HOT WATER OUTLET
3. GAS SUPPLY MANUAL SHUT-OFF VALVE
4. SEDIMENT TRAP
5. UNION - GROUND JOINT TYPE
6. FLOOR DRAIN
7. TEMPERATURE & PRESSURE RELIEF VALVE
8. GAS CONTROL
9. WATER SUPPLY TO METER
10. WATER SUPPLY TO HOME
11. WATER METER WITH BACKFLOW PREVENTER
12. OVERFLOW
13. PRESSURE RELIEF VALVE
14. EXPANSION TANK
Figure 2
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Specially For Direct Vent Water Heater:
recommended is 90” or in compliance with figure 3M.
*Where the wall is combustible and the wall thickness is
over 14”, 1 inch clearance to combustible materials around
the terminal pipe is needed. The first 14” is zero clearance.
Make certain to observe the vent location limitations
complying with the CAN/CGA-B149 Installation Code or
ANSI Z223.1 National Fuel Gas code and/or local codes.
There are some important issues shown in Figure 3.
MAX. 90”
WALL
Vent Terminal must be located at
least 12” from Windows, Doors,
or any other Opening through
which flue gases could enter the
4”
3”
18”
Min.
building.
Vent terminal must be
located at least 36” above
any Forced Air Inlet into the
building within 10 feet of
the Vent Terminal
4”
12” Min.
18”
Min.
36”
Min.
Figure 3 B - Moving Water Heater To Its Final
Installed Location.
Within 10 feet
Move the water heater to its final installed location. Make
certain clearances from combustible material are
observed. The maximum distance from center of water
heater to outside wall should not be longer than 90”.
12” Min. above grade. Higher
in Areas of Heavy Snowfall
Any Forced Air Inlet
into the building
Figure 3 - Vent Location Limitations
CLAMP
For a second or more direct vent unit, the distance
between vent terminals must have a minimum of 1 foot.
SPRING
INSPECT SHIPMENT –– There may be hidden damage
caused by transit. Check to be certain all parts of the
venting system, as shown in Figures 3A through 3M, are
present. Inspect the upper and lower air inlet boxes, rear
air tube and all parts of the venting system.
CAUTION
If there are any damaged parts, DO NOT install this water
heater. Report any shortage to your distributor or damage
to your carrier.
Figure 3 C - Vent Assembly.
The vent pipe and terminal are assembled by the
manufacturer as shown in figure 3C. There are springs
fastened inside the corrugated pipe. When the vent pipes
are pulled to a required length, the distances between the
springs will still be equally spaced.
Note: The four fasteners that are required to secure the
vent terminal to the exterior wall are not provided. These
should be screw type (not nails) chosen for the type of
construction and obtained locally.
CAUTION
Cut edges of corrugated (flex) pipe are extremely sharp.
Wear gloves when handling.
SEALANT
VENT CONNECTIONS - After the location for the vent
terminal has been selected as outlined in Figure 3, use
the following illustrations for installation:
7” DIAMETER
MIN.
68”
Figure 3 D - Securing Vent Termination Assembly To
The Exterior Wall.
BOTTOM OF HEATER
Introduce the 6” pipe through the clearance hole from
exterior wall then secure the vent terminal to the exterior
wall with 4 screw anchors appropriate for the type of
wall construction. Caulk the junction of the vent terminal
base plate and the exterior wall with exterior type
silicone sealant.
Figure 3 A - Locating Clearance Hole for Vent.
Cut a clearance hole, approximately 7 inches in diameter,
through the exterior wall for the vent assembly. The
minimum height should not be less than 68” from the hole
center to bottom of water heater. The maximum height
– 3 –
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SPRING
REDUCER
H
Figure 3 H
Figure 3 E - Pull the 3 1/8” and 6” Corrugated Pipe
Toward the Water Heater Individually.
1. Pull the 3 1/8” corrugated pipe toward the water
heater and leave some length over the water
heater’s center for bending.
Apply silicone around 6” collar on air manifold box. Pull
corrugated vent tube all the way on to collar and secure
with one sheet metal screw (approx. 3/4”) up from edge
of vent tube. Pull gear clamp past screw and tighten.
2. Pull the 6” corrugated pipe toward the water heater
and leave it 1” shorter than 3 1/8” pipe.
3. Make sure there are two springs evenly spaced at
the bend in the pipe.
SLOPE
4. Use metal hangers to keep vent pipe level or with a
slope upward from the heater to terminal.
Figure 3 J
Check the vent pipe’s level or slope again, and adjust if
required.
Offset vent pipe Arrangement
Figure 3 F
Bend the 3 1/8” and 6” corrugated pipe all together
toward the water heater’s flue connection.
TOP VIEW
90°
MAXIMUM
BEND
Figure 3 K - CONDITION 1
Where a straight vent pipe arrangement is impossible, a
horizontal 90 degree maximum bend can be made. Use
the water heater casing outer diameter as a template to
form the corrugated pipe.
Figure 3 G
Pull and connect the 3 1/8” corrugated pipe to the water
heater’s flue tube reducer with hi-temp red silicone and gear
clamp. Make sure this connection is tight and leak proof.
*The sealant between 3 1/8” corrugated pipe and water
heater’s flue tube reducer must be hi-temp red silicone
or other material suitable for 600°F continuous service.
– 4 –
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Inlet gas pressure to the appliance must not exceed the
gas pressures marked on the rating plate; 7” W.C. for
natural gas, 14” W.C. for L.P. gas. The minimum supply
pressure for the purpose of input adjustment is 1” above
manifold pressure.
>1”
>1”
WALL
10”
(REF)
The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressure in
excess of 1/2 psig (3.5 kPa).
68 MINIMUM
The appliance must be isolated from the gas supply
piping system by closing its individual manual shutoff
valve during any pressure testing of the gas supply piping
system at test pressures equal to, or less than 1/2 psig
(3.5 kPa).
The appliance and its gas connection must be leak tested
before placing the appliance in operation. It is important
to have a readily accessible manual shutoff valve in the
gas line supplying the heat close to the heater. A drip leg
must be installed ahead of the gas control valve to help
trap sediment and foreign material.
Figure 3 L - CONDITION 2
Where floor joists impede venting, a rise to complete the
vent termination is possible. All installations require 1”
clearance to combustibles.
Note:
A ground-joint union must be installed ahead of the gas
valve to permit easy removal of the unit. All leak testing
must be done with a soapy water solution.
A. The maximum horizontal vent pipe length of 90” minus
wall thickness should be considered when installing
an offset vent arrangement.
B. Do not Combine condition (3K) with condition (3L)
in the same installation.
NEVER USE A MATCH OR OPEN FLAME TO TEST FOR
GAS LEAKS. A FIRE OR EXPLOSION COULD RESULT.
WATER PIPING
High Rise Vent Pipe Arrangement
Pipes and fittings should be installed in compliance with
the installation drawing. Check for dip tube in cold water
fitting before connection of hot and cold water lines. Show
where the water shut-off valve for the water heater is
installed so that the owner knows where and how to shut
the water off. It is recommended that such a valve be
located in close proximity to the cold water inlet of the
water heater.
Connect the cold water supply (3/4 NPT) to the fitting
marked “COLD”, the hot water outlet (3/4 NPT) to the
fitting marked “HOT”. Do not apply heat to either of these
fittings as they contain a nonmetallic tube. When making
these connections, always use a good grade of pipe joint
compound and be certain that all fittings are tight. See
installation drawing (FIGURE 2).
D
10”
(REF)
WALL THICKNESS
H
TO BOTTOM
OF HEATER
After piping has been installed, allow tank to fill with water
and check connections for leaks. To insure complete
filling of the tank, allow air to exit by opening the nearest
hot water faucet until a constant flow of water is obtained.
Figure 3 M
When the height H (From vent terminal center line to
bottom of heater) is over 90”, it is a high rise vent pipe
arrangement. The minimum distance “D” from the center
of the water heater to the outside wall surface is 22”, and
the maximum height of “H” is 12 feet.
TEMPERATURE & PRESSURE RELIEF VALVE
GAS CONNECTIONS
For protection against excessive pressure and/or
temperatures, a temperature and pressure relief valve
has been installed in the water heater.
Install the gas piping as indicated in Figure 2. Use only
new pipe and fittings with sound, clean-cut pipe threads.
Sealing compound must conform to the applicable code
for pipe sealing compound approved for use with natural
gas and propane. Use gas piping of adequate sizing to
ensure full gas input. All piping must comply with all local
codes. In the absence of local codes, piping must comply
with the rules stated by the applicable National Fuel Gas
Codes. The final connection to the gas control valve is
made using 1/2” N.P.T. pipe.
ANY REPLACEMENT VALVE MUST NOT EXCEED
THE TEMPERATURE AND PRESSURE RATING.
FAILURE TO INSTALL AND MAINTAIN A NEW,
PROPERLY LISTED TEMPERATURE AND PRESSURE
RELIEF
VALVE
WILL
RELEASE
THE
MANUFACTURER FROM ANY CLAIMS WHICH MIGHT
RESULT FROM EXCESSIVE TEMPERATURE OR
WATER PRESSURE.
– 5 –
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Pressure rating of the valve must not exceed the working
pressure shown on the rating plate of the water heater.
The discharge capacity must be equal to or greater than
the input to the water heater. Temperature and Pressure
Relief valve piping must terminate 6 inches, no more than
12” (reference the applicable code) above a floor drain or
external to the building. Do not thread, cap, or plug the
end of this discharge line. Be certain that no contact is
made with any live electrical part. Do not connect
discharge line directly to drain. See Figure 2. To prevent
bodily injury, hazard to life or damage to property, the
relief valve must be allowed to discharge water in the
event of excessive temperature or pressure developing in
the water heater. The function of the temperature and
pressure relief valve is to discharge water in quantities
should circumstances demand. If the discharge pipe is
not directed to drain as shown in Figure 2 or other
suitable means, the water flow may cause property
damage.
PRESSURE BUILD-UP IN A WATER SYSTEM
During the heating cycle of the water heater the water
expands, creating a pressure build-up in the water
system. The water supply meter may contain a check
valve or back flow preventer. This will create a closed
water system. A temperature and pressure relief valve
must be installed on the water heater (150 PSI maximum
pressure setting. See temperature and pressure relief
valve).
If a water heater is installed in a closed water supply
system, the relief valve will discharge water as the
volume of water expands with rising water temperatures.
This is normal and indicates a normal functioning of the
relief valve. Do not plug the relief valve. Only if the
discharge from the relief valve is continuous or for an
extended period of time would this indicate a
malfunction. Have the operation of the heater checked
by a qualified serviceman.
The discharge line:
INSTALLATION CHECK LIST
1) must not be smaller than the outlet pipe size of the
relief valve,
2) must not be plugged or blocked,
3) must be material capable of withstanding 210°F
without distortion,
4) must be installed so as to allow complete drainage of
both temperature and pressure relief valve,
5) must terminate at an adequate drain, and
6) must not have any valve between the relief valve and
the water heater.
Check Here
1. Have the vent location limitations and minimum
height for vent termination and maximum vent
length been checked?
2. Are the terminal and vent pipes installed and
sealed properly?
3. Has the gas piping been leak tested?
4. Is there at least a 1” clearance between the
water heater and combustible materials, 20” at
the top and 1” around the vent pipe?
WARNING
Do not attempt to operate this water heater
with the cold water inlet valve closed.
Manually operate the Temperature and
Pressure Relief valve at least once a year.
Standing clear of the outlet (discharge water
may be hot), lift and release the lever handle
on the Temperature and Pressure Relief
valve to make the valve operate freely.
NEVER OPERATE THE HEATER IF IT IS
NOT COMPLETELY FILLED WITH WATER.
TO MAKE SURE THE HEATER IS FILLED,
OPEN A HOT WATER TAP UNTIL A FULL
FLOW OF WATER IS VISIBLE WITH NO
AIR ESCAPING.
5. Have you taken steps to prevent water damage
in case of leaks?
6. Is the diptube installed in the cold water inlet
connection?
7. Is the water heater completely filled with water?
8. Does the gas piping conform with the
recommendations of your Local Gas Utility
Company?
9. Is the vent terminal opening unobstructed?
10.Is a temperature and pressure relief valve
installed?
11.Is the drain pipe from the T & P valve
unobstructed?
12.Has all plastic and cardboard packaging
material been removed from the heater and
venting?
IF the answer to all of the above questions is “YES”
proceed with lighting the heater.
– 6 –
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VI) LIGHTING AFTER INSTALLATION
WARNING:
TO AVOID POSSIBLE INJURY, FIRE AND EXPLOSION,READ THESE PRECAUTIONS BEFORE ATTEMPTING TO LIGHT OR RE-
LIGHT THE PILOT. CHECK THAT THE HEATER IS FILLED WITH WATER AND THE VENTING SYSTEM IS UNOBSTRUCTED.
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or
loss of life.
A. This appliance has a pilot which must be lighted by hand. When lighting a pilot, follow these instructions exactly.
B. BEFORE OPERATING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier
than air and will settle on the floor.
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.
C. Use only your hand to turn the gas control knob. Never use tools. If the knob will not turn by hand, do not try to repair it, call a
qualified service technician. Force or attempted repair may result in a fire or explosion.
D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance
and to replace any part of the control system and any gas control which has been under water.
BEFORE PROCEEDING WITH LIGHTING INSTRUCTIONS, PLEASE FAMILIARIZE YOURSELF WITH THE
CONTROL USED ON YOUR WATER HEATER. REFER TO ILLUSTRATIONS ON PAGES 7 & 8.
WARNING: Should overheating occur or the gas supply fail to shut off, turn off the manual gas valve to the appliance.
LIGHTING INSTRUCTIONS FOR HEATER WITH “SIT” GAS CONTROLS
1. STOP! Read all safety labels on the water heater before
operation.
2. Rotate the thermostat/control knob located on the gas control
clockwise
to the “OFF” position.
3. Wait 5 minutes to clear out any gas. If you smell gas, STOP!
Follow instruction “B” above on this page. If you do not smell
gas, go to the next step.
4. To light heater, remove outer door and remove 2 screws from
right side of hinged door.
5. Find pilot. Follow aluminum tube from the underside of the gas
control. The pilot is in front of the burner.
SIT GAS CONTROL (TOP VIEW)
6. Turn the thermostat/control knob counterclockwise
“PILOT” position.
to the
7. Use a lit match held securely with an extension device, or a
long stem igniter. While holding the ignition source at the pilot,
depress the pilot button to light the pilot.
8. Keep pilot button depressed for 60 seconds to properly heat
thermocouple and activate safety controls.
9. If pilot does not remain lit, repeat steps 7 & 8.
• If the pilot will not stay lit after several attempts, turn the
thermostat/control knob to “OFF” and contact your service
technician.
• If the pilot button does not pop up when released, stop and
immediately call your service technician or gas supplier.
10. Once the pilot is established, re-fasten 2 screws to right side
of hinged door, then replace the outer door.
WARNING: FAILURE TO PROPERLY SECURE THE
INNER DOOR MAY POSE A SAFETY HAZARD.
To Turn Off the Gas Control
11. Turn the thermostat control knob counterclockwise
to turn
1. Rotate the thermostat control knob clockwise
position.
to the “OFF”
on the heater. Set the knob position to the “LOW” marking to
start. Adjust the temperature up as required.
– 7 –
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LIGHTING INSTRUCTIONS FOR HEATER WITH “ROBERTSHAW R110” GAS
CONTROLS
WARNING: Should overheating occur or the gas supply fail to shut off, turn off the manual gas valve to the appliance.
1. STOP! Read all safety labels on the water heater before operation.
2. Set the thermostat to the lowest setting. Rotate dial on front of control
counterclockwise.
GAS CONTROL KNOB
PILOT BUTTON
IN PILOT POSTION
3. Rotate gas control knob on top of thermostat clockwise
to “OFF” position.
4. Wait 5 minutes to clear out any gas. If you smell gas, STOP! Follow
instruction “B” above on page 7. If you do not smell gas, go to the next step.
5. To light heater, remove outer door and remove 2 screws from right side of
hinged door.
6. Find pilot. Follow aluminum tube from the “right-underside” of the gas
thermostat. The pilot is adjacent to burner.
7. Turn gas control knob counterclockwise
to “PILOT” position.
8. Use a lit match held securely with an extension device, or a long stem igniter.
While holding the ignition source at the pilot, depress the red pilot set button
(upper left) to light the pilot. Continue to hold the pilot set button for about 1
minute after pilot is lit. Release pilot set button and it will pop up. Pilot should
remain lit.
TEMPERATURE
DIAL
ROBERTSHAW R110 GAS CONTROL
•If knob does not pop up when released, stop and immediately call your
service technician or gas supplier.
•If the pilot will not stay lit after several tries, turn the control knob to “OFF”
and call your service technician or gas supplier.
9. Once the pilot is established, re-fasten 2 screws to right side of hinged door,
then replace the outer door.
WARNING: FAILURE TO PROPERLY SECURE THE INNER DOOR
MAY POSE A SAFETY HAZARD.
To Turn Off the Gas Control
1. Set the thermostat dial to the lowest setting. Turn
counterclockwise.
10. Turn gas control knob counterclockwise
to “ON” position.
2. Turn gas control knob “OFF”. Rotate clockwise.
11. Set the thermostat to desired setting clockwise.
LIGHTING INSTRUCTIONS FOR HEATER WITH “ROBERTSHAW 220R” GAS
CONTROLS
WARNING: Should overheating occur or the gas supply fail to shut off, turn off the manual gas valve to the appliance.
1. STOP! Read all safety labels on the water heater before operation.
2. Rotate gas control knob on top of thermostat clockwise
3. Set the thermostat to lowest setting.
to “OFF” position.
GAS CONTROL KNOB
SHOWN IN “OFF” POSITION
4. Wait (5) minutes to clear out any gas. If you then smell gas, STOP! Follow
instruction “B” above on page 7. If you don’t smell gas, go to the next step.
5. To light heater, remove outer door and remove 2 screws from right side of
hinged door.
PRESSURE REGULATOR
6. Find pilot. Follow aluminum tube from the “right-underside” of the gas
thermostat. The pilot is adjacent to burner.
7. Turn gas control knob counterclockwise
to “PILOT” position.
8. Use a lit match held securely with an extension device, or a long stem igniter.
While holding the ignition source at the pilot, depress the gas control knob to
light the pilot.
9. After pilot lights, keep knob depressed for at least 60 seconds to properly
heat thermocouple and activate safety valves.
10. If the pilot does not remain lit wait at least 10 minutes and repeat steps 1-9.
•If knob does not pop up when released, stop and immediately call your
service technician or gas supplier.
TEMPERATURE DIAL
ROBERTSHAW 220R GAS CONTROL
•If the pilot will not stay lit after several tries, turn the control knob to “OFF”
and call your service technician or gas supplier.
11. Once the pilot is established, re-fasten 2 screws to right side of hinged door,
then replace the outer door.
WARNING: FAILURE TO PROPERLY SECURE THE INNER DOOR
MAY POSE A SAFETY HAZARD.
To Turn Off the Gas Control
1. Set the thermostat dial to the lowest setting. Turn
counterclockwise.
12. Turn gas control knob counterclockwise
13. Set thermostat to desired setting clockwise.
to “ON” position.
2. Turn gas control knob “OFF”. Rotate clockwise.
– 8 –
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EXPOSURE TO WATER
WARNING
If the water heater needs to be relit;
IMPORTANT
Should the water heater be subjected to
flooding, fire, or other unusual condition, turn
off gas at the manual gas shut-off valve and
water at the inlet valve to the heater. Do not
put the heater in operation until it has been
thoroughly checked by a qualified gas
technician.
1. Open the inner door for at least 10 minutes
and force some fresh air into the
combustion chamber to clear any gas from
the water heater and vent system.
2 Check the vent terminal for blockage.
3. Follow the lighting instruction again.
SPECIAL NOTE ON PROPANE FUEL:
L.P. GAS IS HEAVIER THAN AIR
TAMPERING
Should there be a leak in the system, the gas will settle at
FLOOR LEVEL. Basements, crawl spaces, closets and
areas below ground level will serve as pockets for the
accumulation of the gas.
Tampering with the thermostat, gas valve or temperature
pressure relief valve is DANGEROUS and voids all
warranties. Only qualified personnel should service these
components.
BEFORE LIGHTING, SNIFF AT FLOOR LEVEL.
IF YOU SMELL GAS, FOLLOW THESE RULES.
1. Get all people out of the building.
BURNER MAINTENANCE
2. DO NOT light matches.
At least every 3 months, check the burner and pilot
flames. The burner flames must be a soft blue flame with
no yellow tips. Yellow tips indicate a carburizing flame
which can, depending on severity, deposit carbon (soot)
on the combustion chamber and flue passages.
3. DO NOT touch electrical switches (on or off).
4. DO NOT use an electrical fan to remove gas from
area.
5. SHUT OFF GAS at the L.P. tank outside of the
building.
6. IMMEDIATELY call the L.P. Gas Company or the fire
department from a neighbor’s phone. Ask for
instructions. Before hanging up, give your name,
address and telephone number.
A sheet metal burner is used on natural gas models. See
Figure 5.
7. DO NOT go back into the building. If help is coming,
wait for it outside the building.
OUT OF FUEL
When your L.P. tank runs out of fuel, turn off gas at all gas
appliances. After L.P. tank is refilled, all appliances must
be re-lit according to the manufacturers instructions.
WATER TEMPERATURE REGULATION
The thermostat is adjusted to its lowest temperature
position when shipped from the factory. The temperature
of the water can be selected by setting of the temperature
dial on the top of the gas control. See Figure 4.
The “LOW” position on the thermostat is the preferred
starting point for setting the temperature/control knob
(approximately 120°F (50°C)).
The lowest setting will maintain the minimum water
temperature if you are going away for an extended
period. The burner may be extinguished if operated
below this temperature.
Figure 5
The sheet metal burner for Natural Gas has no external
air adjustment. It is fully self-compensating and no
outside adjustment is required. Observe the flame
pattern. Ensure that no debris has fallen on top of the
burner and no foreign objects have been introduced into
the combustion chamber. Ensure that the vent terminal
openings are not obstructed and the inner door to the
combustion chamber is closed.
Energy conservation is a consideration when
selecting the water temperature setting.
HIGHER SETTING INCREASES
THE RISK OF SCALD INJURY
GAS CONTROL
For gas control replacement, contact your local gas utility,
or a qualified serviceman. The replacement control must
be an identical model to the control which has been
removed.
In households with children or invalids and/or elderly
persons, select a lower temperature setting. To reduce
the risk of scalding, valves for reducing the point of
discharge water temperature by mixing in branch water
lines are available. Please consult a licensed plumber or
plumbing authority.
– 9 –
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MAINTENANCE INSTRUCTIONS -
GENERAL HOUSEKEEPING
CATHODIC PROTECTION
Depending on the model, one or two magnesium anodes
are factory installed inside the tank to provide corrosion
protection and to extend tank life. Permanent removal of
the anode(s) for any purpose will void the warranty. Read
the warranty attached to this water heater for a full
explanation of the time period that parts and the heater
are warranted.
It is advisable to inspect the condition of the anode(s) at
certain intervals. A 2 year period may be a guide to begin
with. The life of the anode depends on many factors and
can differ greatly from one location to another.
As a precaution against fire, and to maintain an adequate
flow of combustion air to the heater:
•
keep the appliance area clear and free from
combustible material, gasoline, and other flammable
vapours and liquids,
•
•
keep the terminal openings unobstructed
do not pile cartons, paper or combustible material on
top of the heater.
TANK
To remove an anode, proceed as follows:
Drain at least a pail of water from the drain valve once a
month. Some deposit will be washed out of the tank. If
larger particles, resembling a coarse sand are washed
out, or if the drain becomes clogged while draining, an
excess of lime deposit has settled on the tank bottom and
it is time to do a major tank cleaning. Consult your local
Gas Utility or a qualified serviceman.
1. Turn the gas off at the inlet to the heater.
2. Turn water off at the cold water inlet valve.
3. Open a nearby hot water tap.
4. Drain approximately one pail full of water from the
heater.
5. With a 1 1/16” hexagon socket wrench, loosen the
anode from the fitting in the tank top.
VENTING SYSTEM INSPECTION
NOTE: The anode has been factory installed using a
power tool. It will be necessary for a second person to
restrain the heater. A few sharp blows on the handle of
the socket wrench will loosen the anode nut.
Every 3 months, when inspecting the burner flame, an
inspection of the venting system should be made.
Check these points:
1. To make certain vent terminal is securely attached
and free of obstruction.
2. Inspect air pipe to make certain its components are
securely fastened, sealed and are in good condition.
3. To make certain inner door on water heater is securely
fastened.
If an impact wrench (power drive) is available, this is
an easy way to remove an anode.
6. Lift the anode up and inspect. There should be at least
3/8” to 1/2” of anode diameter left. The surface may be
rough, full of pits and crevices, but this is normal.
CORRECT ANY DEFECTS IMMEDIATELY.
If there is less than approximately 3/8” diameter left,
the anode needs to be replaced.
TEMPERATURE & PRESSURE RELIEF VALVE
7. Apply a good grade of pipe dope to the threads of the
anode adaptor and screw securely into the tank top.
8. Open the cold water inlet valve and fill tank.
9. Check for leaks.
10. Relight burner by following lighting instructions on
page 7.
The Temperature and Pressure Relief Valve (T&P valve)
is a part of the safety equipment on the water heater.
In order to keep the T&P valve functioning properly,
operate the valve at least once a year by lifting the
manual lever until water discharges from the overflow
pipe.
Water supply conditions may vary depending on the
region where this water heater is installed, and in some
cases the water may have an adverse effect on the
operation of the anode.
CAUTION
The water flowing from the valve will be HOT.
Keep hands and feet away from the stream of water.
Take care that the discharging water does not damage
any flooring, carpeting or other parts of the building
which may be damaged by water.
See also section on T&P valve in the installation
section.
If a sulphurous, or “rotten egg” smell is noticeable in the
hot water supplied by this heater, it is an indication that
the water source is not compatible with the magnesium
anode which is factory installed. Replace the anode to an
aluminum anode or a water treatment for removal of
sulphur from the water supply.
– 10 –
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CONTROL
3. Do not use this heater as a replacement for an existing
boiler installation.
If the heater or the controls have been subjected to
flooding, shut off the gas at the manual shut-off valve to
the heater and call your gas company.
4. Do not introduce toxic chemicals such as those used
for boiler treatment into the potable water used for
space heating.
The heater operates under a fully automatic control.
Once the desired water temperature has been selected,
the gas control will maintain that temperature within close
limits.
5. If the space heating water system requires water with
temperatures in excess of 140°F, a mixing valve or
other means must be installed in the potable hot water
supply to temper the water and reduce scald hazard
potential.
DO NOT TAMPER WITH THE GAS CONTROL!
6. If the heater is installed with a back-flow preventer on
the incoming water line or in a closed system, a
diaphragm-type expansion tank must be installed in
the system to prevent weeping due to expansion.
CAUTION
Hydrogen gas can be produced in a hot water
system served by this heater that has not
been used for a long period of time (generally
two weeks or more). Hydrogen gas is
extremely flammable. To reduce the risk of
injury under these conditions, it is
recommended that the hot water faucet be
opened for several minutes at the kitchen sink
before using any electrical appliance. If
hydrogen is present, there will probably be an
unusual sound such as air escaping through
the pipe as the water begins to flow. There
should be no smoking or open flame near the
faucet at the time it is open.
7. Proper sizing of the water heater for the given space
and potable heating application is essential to ensure
adequate heating capacity. The sizing and installation
of such combination system must be performed by
qualified personnel and be in accordance with public
utility requirements and/or Codes having jurisdiction.
The sizing of the water heater should be based on the
design heat loss of the structure to be heated plus the
potable water requirements.
IT IS IMPORTANT THAT THE WATER HEATER USED
BE OVERSIZED TO ALLOW ADEQUATE HEATING
AND POTABLE WATER HEATING CAPACITY.
INSTALLATION INSTRUCTIONS FOR WATER
HEATERS APPROVED FOR SPACE HEATING AND
POTABLE WATER HEATING
CIRC. PUMP
CHECK VALVE
HOT
WATER
TO
When using this water heater in the application of a
combination space and potable water heating system, be
sure to follow instructions provided with the water heater
and the manual shipped with the air handler.
COLD TO
WATER HEATER
HOUSE
NOTE the following warnings:
DIRECT
VENT
WATER
HEATER
1. The piping and components connected to the water
heater for the space heating applications shall be
suitable for use with potable water. The system should
be installed with new non-ferrous piping. Do not use
pumps, valves, fittings, solder, gluing and pipe sealant
that are not completely compatible with potable water
piping.
AIR HANDLER
2. A water heater which will be used to supply potable
water must not be connected to any heating system or
components previously used with a non-potable water
heating appliance. Do not use: piping that has been
treated; broiler seal chromates; or other chemicals.
RADIATOR OR RADIANT FLOOR PIPING ARE
VIABLE ALTERNATIVES TO AIR HANDLER.
Figure 9
– 11 –
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~ Certificate of Warranty ~
Warranty Code: P R S T U V W
Y
See Rating Label Serial Number prefix for
Warranty Code. Reduced warranty period
applies to Newfoundland.
Standard Warranty Years: 3 5 6 7 8 9 10 12
Reduced Warranty Years: 2 3 3 5 5 5
5
7
For its GSW and John Wood water heaters and storage boosters ("Unit"), GSW Water Heating ("GSW") warrants that, upon
receipt of a properly verified Warranty claim within the Warranty Period, it will, at its election, repair or replace: units which leak or parts which are defective
in material or workmanship, subject to the terms and conditions set forth in this certificate. GSW will not assume any expense or liability for unauthorized
returns, nor repairs made by a person who has not been authorized by GSW or one of its authorized dealers. GSW Units/parts must be replaced with GSW or
John Wood products to be eligible for Warranty. This Warranty is available to the original owner of a Unit installed within the boundaries of continental United
States, of Canada, or their territories. Consumers must retain point-of-sale proof of purchase to validate warranty entitlement. This Warranty does not
cover components not manufactured by GSW, such as oil burners, which carry the warranty given by the manufacturer thereof, copy of which warranty GSW
will make available, to the extent supplied by the manufacturer, without recourse to GSW.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF. THIS EXPRESS
WARRANTY IS, WHERE PERMITTED BY LAW, IN LIEU OF AND EXCLUDES AND REPLACES ALL OTHER CONDITIONS,
WARRANTIES, GUARANTEES, REPRESENTATIONS, OBLIGATIONS OR LIABILITIES OF GSW OF ANY NATURE OR KIND,
EXPRESS OR IMPLIED, HOWEVER ARISING (WHETHER BY CONTRACT, CONDUCT, STATEMENT, STATUTE,
NEGLIGENCE, PRINCIPLES OF MANUFACTURER'S LIABILITY, OPERATION OF LAW OR OTHERWISE) WITH RESPECT
TO THE UNIT OR ITS FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, INSTALLATION, OPERATION,
REPAIR OR REPLACEMENT. GSW EXPRESSLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES. IN NO EVENT WILL
GSW'S LIABILITIES EXCEED THE COST OF THE DEFECTIVE PART(S) OR UNIT. GSW WILL NOT PAY FOR ANY
TRANSPORTATION, LABOUR, INSTALLATION, OR OTHER INCIDENTAL COSTS ASSOCIATED WITH THE REPAIR OR
REPLACEMENT OF A DEFECTIVE PART OR UNIT.
This warranty and GSW's obligations shall be construed and determined in accordance with the laws of both the Province of Ontario, and of Canada in force
therein. This Warranty does not affect specific legal rights of a consumer under applicable law, except to the extent that such rights may be waived or replaced,
and the provisions hereof are deemed to be amended to the extent necessary. The unenforceability of any provision, in whole or in part, of this Certificate shall
not affect the remaining provisions. Any and all repair and/or replacement of part(s) or Unit are the sole and exclusive remedy available against GSW.
LIABILITY OF GSW COVERED BY THIS WARRANTY IS CONDITIONAL UPON THE FOLLOWING:
1. The Unit shall be installed in accordance with all manufacturers' 7. A properly documented claim shall be received by GSW or one of its
instructions, all applicable equipment and building codes, ordinances and
regulations (hereinafter referred to as the "standards").
authorized dealers, or point of purchase, within the following Warranty
Period, except as provided otherwise below*:
2. The Unit must not be installed where water damage can result from a
leak, while provision(s) shall be made for directing any water escaping
from the Unit, to a properly operating drainpipe. As all units of this type
may eventually leak, you must protect against any potential water
damage. GSW accepts no responsibility for such damage, nor any
incidental or consequential loss, nor damage(s) related thereto, suffered
by the owner of the Unit nor by any third party.
3. The Unit shall not be installed where it will be exposed to adverse or
unusual environmental or corrosive conditions. No warranty extends, for
example, and without limitation of the foregoing, to Units exposed to:
salts; chemicals; exhausts; pollutants or contaminants. Further, no
warranty extends to Units affected by fire, freezing or flood, "Acts of
God", or any other contingency beyond the control of GSW.
a) for any defective part, within one (1) year; or
b) for any Unit that develops leaks in the inner tank due to rust, corrosion
or other chemical reactions caused by the potable domestic water
supplied to your home, within the period of time shown in table at the top
of this page.
* Residential units installed and used in a commercial application carry a
warranty period of one (1) year from date of installation; and,
Any repair or replacement of any part, tank, or Unit under this Warranty
will not extend the Warranty Period beyond that calculated from the date
of first installation of the original Unit. The date of first installation will
be deemed to be the later of the date indicated by the Unit's serial number,
or if supplied with the Warranty claim, the sales receipt, or installer's
receipt.
4. The Unit shall be equipped with a properly operating temperature and 8. A claim under this Warranty must include the model and serial number of
pressure relief valve as specified by GSW and applicable standards. The
Unit shall be operated at temperatures not exceeding the maximum
setting of the thermostat and/or high limit control provided by GSW, and
at water pressures not exceeding the pressure reading stated on the Unit.
5. The Unit must be carefully inspected, maintained, and operated in
accordance with the manufacturer's instructions. No warranty extends,
for example, and without limitation of the foregoing, to any Unit
operated: without the tank being completely filled with water; without an
operating anode; with levels of sediment or lime precipitate which cause
failure; in connection to any attachment(s), energy saving device(s), or
other means of heating, except as approved by GSW for the Unit; other
the Unit, proof of date on which the Unit was first installed, and the
identity of the defective part(s) for which a claim is being made and be
submitted within 15 days following discovery of the defect(s), by
personal delivery to a GSW authorized dealer, point of purchase, or GSW
itself at:
GSW Water Heating
A GSW Company
599 Hill Street West
Fergus, ON Canada N1M 2X1
Should you have questions, please call our Technical Support Line at 1-
888-479-8324.
than with potable water without any additives such as salts, chlorine or 9. If requested by GSW, information relating to the purchase, transportation,
chemicals, except those added for the sole purpose of rendering the water
fit for domestic use.
6. All repairs must be made by a competent and qualified person who is
certified, by GSW or one of its authorized dealers, to work on the Unit,
using factory approved replacement parts, and the Unit shall not be
otherwise modified, altered or improperly repaired.
operation and installation of the Unit must be supplied. The defective
part(s) or Unit, with all components properly and securely packed, shall
be returned transportation pre-paid, to the address designated by GSW in
the written request. All claims are subject to validation by GSW.
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