OIL FIRED WATER HEATER
INSTALLATION AND OPERATING INSTRUCTIONS
Read and understand these instructions thoroughly before attempting
any installation or service.
WARNING:
Improper installation, adjustment, alter-
ation, service, or maintenance can cause
injury or property damage. Refer to this
manual. For assistance or additional infor-
mation, consult a qualified Oil-Burner
Technician or your oil supplier.
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 per-
formed by a qualified Oil-Burner
Technician or your oil supplier.
WARNING:
If the information in these instructions is
not followed exactly, a fire or explosion
may result causing property damage, per-
sonal injury or death.
WHAT TO DO IF YOU SMELL OIL
•Immediately call your oil supplier.
JWF307 - JW317 - JW327
JWF507 - JW517 - JW527
JWF307V - JW717 - JW727
JWF657
INSTALLATION RECORD
Record key data here for future reference and prompt service:
Installed By / Purchased From:
Location of Electrical Switch
or Circuit Protector:
Installation Date:
Model Number
Serial Number
Technical Support Line: 1-888-479-8324
PART NO. 61512 REV. H (06-09)
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Your safety and the safety of others is very important.
We have provided many important safety messages in this manual and on your appliance.
Always read and obey all safety messages.
This is the safety alert symbol.
This symbol alerts you to potential hazards that can kill or hurt you and others.
All safety messages will follow the safety alert symbol and either the word
“DANGER” or “WARNING”.
You can be killed or seriously injured if you don’t immediately follow
instructions.
DANGER
WARNING
You can be killed or seriously injured if you don’t follow instructions.
All safety messages will tell you what the potential hazard is, tell you how to reduce the
chance of injury, and tell you what can happen if the instructions are not followed.
The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to
publish a list of substances known to the State of California to cause cancer, birth defects, or other
reproductive harm, and requires businesses to warn of potential exposure to such substances.
WARNING: This product contains a chemical known to the State of California to cause cancer, birth
defects, or other reproductive harm.
This appliance can cause low-level exposure to some of the substances listed, including formalde-
hyde, carbon monoxide, and soot.
injury or death resulting from improper sizing, installation or
failure to comply with these instructions.
I) INTRODUCTION
Thank you for purchasing a John Wood Oil Fired Water
Heater. Properly installed and maintained, it will provide
years of trouble free service.
The warranty on this water heater is in effect only when the
water heater is installed and operated in accordance with
This Oil Fired Water Heater has been developed to supply
these instructions. An identifying data plate can be found at
domestic hot water for normal residential demands. Any
the front of your water heater. When referring to your water
deviation from this application could affect your warranty.
heater, always have the information listed on the data plate
readily available.
Consumer Responsibilities
This manual has been prepared to acquaint you with the
Protect your warranty: Regularly service your water heater
installation, operation and maintenance of your oil fired
as directed in the "Maintenance" section of this manual.
water heater and provide important safety information in
Retain your original receipt as proof of purchase.
these areas. It is your responsibility to ensure that your
water heater is properly installed and cared for.
Do not discard this manual. You or future users of this
FAILURE TO FOLLOW THE INSTRUCTIONS IN THIS
water heater will need it for reference.
MANUAL MAY RESULT IN SERIOUS BODILY INJURY
AND/OR PROPERTY DAMAGE. THOROUGHLY READ
AND UNDERSTAND ALL INSTRUCTIONS BEFORE YOU
ATTEMPT TO INSTALL, OPERATE OR MAINTAIN THIS
II) SAFETY
In addition to the installation instructions found in this man-
HEATER.
ual, the water heater must be installed in accordance with all
Installation and service requires trade knowledge in the
local and provincial or state codes or, in the absence of
areas of plumbing, electricity, venting, air supply and oil sup-
such, with the latest editions of the following specifications.
ply. If you lack these skills or have difficulty understanding
these instructions, you should not proceed. Enlist the help of
a qualified service technician to install this water heater.
For Installations in Canada:
“Installation Code for Oil-Burning Equipment (CSA
B139-04)” and
Examples of qualified service technicians include those
“Canadian Electrical Code Part 1 (C22.1)” available from:
trained in the plumbing and heating industry, local oil supply
personnel or an authorized service person.
Canadian Standards Association,
5060 Spectrum Way,
The manufacturer and seller of this water heater will not
Mississauga, Ontario, Canada
assume any liability for any property damage, personal
L4W 5N6
– 3 –
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For Installations in the United States:
“Standard for the Installation of Oil-Burning Equipment
(NFPA 31)” and
“National Electrical Code (NFPA 70)” available from:
American National Standards Institute,
25 West 43rd Street,
Safety Warning (Scalding)
DANGER
New York, NY 10036
Check your phone listings for the local authorities having
jurisdiction over your installation.
Important: Installation and service of an oil fired water
heater and burner must be performed by a qualified Oil-
Burner Technician to comply with local and provincial or
state codes applicable to this type of equipment. All supply
equipment, installation, approvals, permits, inspections, etc. Hot water produced by this appliance can cause severe
are the responsibility of the owner of this water heater. burns due to scalding. The hazard is increased for young
Consult your local authorities for regulations specific to your children, the aged or the disabled when water temperatures
area.
exceed 52°C (125°F). Use tempering valves, also known as
mixing valves, in the hot water system to reduce the risk of
scalding at point-of-use such as lavatories, sinks and
bathing facilities. Such precautions must be followed when
this heater is operated in combination with dishwashing or
space heating applications.
Safety Warning (Flammable Vapours)
WARNING
Safety Warning (Carbon Monoxide)
DANGER
Carbon Monoxide Warning
• Follow all vent system requirements by
the local authorities having jurisdiction
over your installation.
FLAMMABLES
Flammable Vapours
FIRE AND EXPLOSION HAZARD
Can result in serious injury or death
• Failure to do so can result in death, explo-
sion or carbon monoxide poisoning.
Do not store or use gasoline or other flammable vapours and liquids
in the vicinity of this or any other appliance. Storage of or use of gasoline
or other flammable vapours or liquids in the vicinity of this or any other
appliance can result in serious injury or death.
As with all fuel burning equipment, this heater requires an
There is a risk of property damage, personal injury or death adequate supply of air for combustion and ventilation. An
from the by-products of combustion (e.g., flue gases), in insufficient air supply can result in poor combustion or the
using fuel-burning appliances such as water heaters. Areas re-circulation of the flue gases. Such a condition can cause
that may not be suitable for water heater installation include soot build-up and present a fire hazard. Flow reversal of flue
those where flammable liquids, gasoline, solvents, adhe- gases can cause an increase of carbon monoxide inside of
sives etc. are stored, or where engine-driven equipment or the dwelling that could result in serious bodily harm or death
vehicles are stored, operated or repaired. These, and simi- from asphyxiation.
lar products, should not be stored or used near the water
heater or air intake. Due to the nature of air movement, flam- MAKE SURE THE FLOW OF COMBUSTION AND VENTI-
mable vapours can be carried some distance from the point LATION AIR IS NOT RESTRICTED.
of storage. A water heater igniter or burner flame can ignite
these vapours causing a flashback, fire or explosion, which
Relief Valve Requirements (T&P)
may result in severe property damage, serious personal
injury or death. If flammable liquids or vapours have spilled
or leaked in the area of the water heater, leave the area
immediately and call the fire department from a neighbor’s
home. Do not attempt to clean the spill until all ignition
sources have been extinguished.
All water heaters must be fitted with a proper temperature
and pressure relief valve. These valves must be certified as
meeting the requirements of the “Standard For Relief
Valves For Hot Water Supply Systems, ANSI Z21.22/CSA
4.4”.
If this water heater has been exposed to flooding, freezing,
fire or any unusual condition, do not put it into operation until
it has been inspected and approved by a qualified service
technician.
– 4 –
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THESE CONDITIONS CAN RESULT IN UNSEEN INTER-
NAL DAMAGE and are not subject to warranty coverage.
Fuel Specifications
All JOHN WOOD brand water heaters are designed to burn
only fuels not heavier than No.2 (furnace) oil.
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 (2) weeks or more).
Hydrogen gas is extremely flammable and can ignite
when exposed to a spark or flame. 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 con-
nected to the hot water system. Use caution in opening
faucets. 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.
III) INSTALLATION
Unpacking the Water Heater
WARNING
Excessive Weight Hazard
Use two or more people to move and install
water heater. Failure to do so can result in
back or other injury.
Important: Do not remove any permanent instructions,
labels, or the data label from outside of the water heater or
on the inside of panels.
•
•
•
Remove exterior packaging and place installation com-
ponents aside.
Inspect all parts for damage prior to installation and
start-up.
Completely read all instructions before attempting to
assemble and install this product.
CAUTION:
Possible cancer hazard by inhalation. Can
cause respiratory, skin and eye irritation.
This product contains fiberglass wool and ceramic fiber
materials. Airborne fibers from these materials have been
listed by the State of California as a possible cause of can-
cer through inhalation. Use special care when handling
ceramic fiber (chamber lining and base insulation) materials.
Ceramic fibers can be converted to chrystobalites, a sub-
stance listed as a probable cause of cancer. Suppliers of
fiberglass wool products recommend the following mea-
sures be taken when handling these materials:
Precautionary measures:
• Avoid breathing fiberglass dust.
• Avoid contact with skin and eyes.
• Use a National Institute for Occupational Safety and
Health (NIOSH) approved dust/mist respirator.
• Wear long-sleeved, loose fitting clothing, gloves and eye
protection.
• Wash work clothes separately from other clothing. Rinse
washer thoroughly.
If you observe damage to the water heater or any of its com-
ponents, DO NOT ASSEMBLE OR INSTALL IT OR MAKE
ANY ATTEMPT TO FIX THE DAMAGED PART(S). Contact
the place of purchase for further instructions.
•
After installation, dispose of packaging material in the
proper manner.
Location Requirements
The water heater must be installed indoors in an area not
subject to freezing temperatures and in a vertical position on
a level surface. Water heaters located in unconditioned
spaces (e.g., attics, basements etc.) may require insulation
of the water piping, drain piping and venting to protect
against condensation.
The water heater must be installed on a non-combustible
floor, as close to the chimney as practical. Select a location
as centralized within the piping system as possible. The
heater should be located in an area where leakage of the
Removing the burner may generate airborne fiber concen- tank or connections will not result in damage to the area
tration requiring additional protection.
First aid measures:
• Eye contact - Flush eyes with sterile water to remove for-
eign objects. If irritation or other symptoms persist, seek
medical attention.
adjacent to the water heater or to lower floors of the struc-
ture (see “IMPORTANT” notice on the following page).
Before installing this water heater, consideration and plan-
ning must be given to the following details:
• Proximity to walls and other objects (see Figures 1, 2 &
3).
• Skin contact - Wash affected areas gently with soap and
warm water after handling.
• Access to oil supply (see “Oil Supply”).
• Routing and support of the vent piping and termination
(see “Venting”).
WARNING
• Position of water supply and placement of water piping
and floor drain (see “Water Supply”).
• How and where to obtain combustion and ventilation air
supply. (see “Air Requirements”).
• Connection to the electrical service. (see “Electrical
Supply”).
• Do not use gasoline, crank case oil or an
oil containing gasoline.
• Do not tamper with unit or controls.
• Do not leave paper or rags around the
burner or heater.
• Do not experiment with the burner.
– 5 –
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an oil line break. Support the oil lines as required by applic-
able codes. Make tank connections with swing joints or cop-
per tubing to prevent breaking in case the tank settles. Make
the swing joints so they will tighten as the tank settles. Non-
hardening pipe joint compounds should be used on all
threads. Do not use Teflon® tape as an oil pipe sealant as it
can cause valves to fail and create hazards. Do not use
compression fittings. Underground piping must be run in a
casing to prevent oil from leaking into the ground or under
the floor. Check local codes for more information.
IMPORTANT:
This water heater must be installed strictly in accordance
with the instructions enclosed, and local electrical, fuel
and building codes. It is possible that connections to the
water heater, or the water heater itself, may develop
leaks. IT IS THEREFORE IMPERATIVE that the water
heater be installed so that any leakage of the tank or relat-
ed water piping is directed to an adequate drain in such a
manner that it cannot damage the building, furniture, floor
covering, adjacent areas, lower floors of the structure or
other property subject to water damage. This is particular-
ly important if the water heater is installed in a multi-story
building, on finished flooring or carpeted surfaces. GSW
WILL NOT ASSUME ANY LIABILITY for damage caused
by water leaking from the water heater, pressure relief
valve, or related fittings. Select a location as centralized
within the piping system as possible. In any location
selected, it is recommended that a suitable drain pan be
installed under the water heater. This pan must limit the
water level to a MAXIMUM depth of 45mm (1 3/4 in.) and
have a diameter that is a minimum of 50mm (2 in.) greater
than the diameter of the water heater. Suitable piping shall
connect the drain pan to a properly operating floor drain.
When used with a fuel-fired heater, this drain pan must not
restrict combustion air flow.
Burner Installation
WARNING
This installation must be performed by a
qualified Oil-Burner Technician in accor-
dance with these instructions and diagrams.
The installation and maintenance of the
water heater must follow all of the instruc-
tions in preceding sections of this manual.
Improper installation can cause injury or
property damage. Heater failure that is a
result of the heating system is not covered
by warranty.
In Earthquake Zones
Note: The water heater must be braced, anchored, or
strapped to avoid moving during an earthquake. Contact
local utilities for code requirements in your area.
The installation of these units shall be in accordance with
the “Installation Code for Oil-Burning Equipment (CSA
B139-04)” or “Standard for the Installation of Oil-
Burning Equipment (NFPA 31)” (as applicable), local
codes and the manufacturer’s instructions. The burner
should be installed only by a qualified Oil-Burner Technician.
Clearances and Accessibility
The minimum clearances between the heater and com-
bustible materials are listed in Figure 1.
Note: These requirements are also listed on the data plate
located on the front of the water heater.
A minimum of 600mm (24 in.) of front clearance and 100mm
(4 in.) on each side should be provided for inspection and
service.
Oil Supply
All aspects of oil tank location and installation, tank size, oil
piping supply and burners, including any fittings, valves, fil-
ters or any fuel handling components must comply with:
• “Installation Code for Oil Burning Equipment
(CAN/CSA-B139)”, (Canada).
• “Standard for the Installation of Oil-Burning
Equipment. (NFPA 31)”, (U.S.A).
• Local codes and regulations.
• Information provided with burner and fuel pump.
Install the oil supply tank with fill and vent lines of adequate
capacity as shown in Figure 4. When an appliance using a
float valve between the supply tank and the burner is con-
nected to a supply tank over 9 gallons (Can.) capacity, a
valve operated by a fusible link shall be installed in the fuel
line adjacent to, and upstream from, the float valve. If any
part of fuel the oil tank is above level of the burner, an anti-
siphon device must be used to prevent flow of oil in case of
– 6 –
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COMBUSTIBLE CEILING
FLUE
SEE TABLE
FLUE
SEE TABLE
FLUE SIZES
SEE TABLE
TOP
SEE TABLE
457mm
(18 in.)
MIN.
NOTE: JWF307V requires additional
“Through-the-wall Vent Kit” available
in 3 lengths: 5’ (63320), 10’ (63321)
or 20’ (63322). Refer to additional
“Installation Instructions for Through-
the-wall Venting Components" that is
supplied with the JWF307V.
DRAFT
REGULATOR
600mm (24 in.) MIN.
FOR SERVICING
NON-COMBUSTIBLE FLOOR
Flue location
Center Rear
Clearance
Sides
mm
Model
Diam.
mm in.
Flue size
Front
mm
Rear
mm
Top
Flue
mm
mm
in.
6
6
6
6
6
6
7
7
7
7
in.
24
24
24
24
24
24
24
24
24
24
in.
2
2
2
2
6
6
6
6
6
6
in.
2
2
2
2
6
6
6
6
6
6
mm
457
457
406
457
356
356
356
356
356
356
in.
18
18
16
18
14
14
14
14
14
14
in.
9
JWF307
JWF507
JWF657
508
559
660
20
22
26
20
24
24
28
28
32
32
X
X
X
X
152
152
152
152
152
152
178
178
178
178
610
610
610
610
610
610
610
610
610
610
51
51
51
51
229
229
152
152
457
457
457
457
457
457
9
51
51
6
JWF307V 508
51
51
6
JW317
JW327
JW517
JW527
JW717
JW727
610
610
711
711
813
813
X
X
X
X
X
X
152
152
152
152
152
152
152
152
152
152
152
152
18
18
18
18
18
18
X
X
X
Figure 1 Rough-In Dimensions
– 7 –
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H
H
G
E
E
D
D
F
C
C
B
G
B
A
F
A
Model
JWF307
508
20
229
9
457
18
699
27 1/2
1286
50 5/8
1326
52 3/16
1122
44 3/16
1314
51 3/4
150
JWF507
559
22
229
9
457
18
660
JWF657 JWF307V
Model
JW317/JW327 JW517/JW527 JW717/JW727
mm
660
26
508
20
mm
in.
610
24
711
28
813
32
Diam.
Diam.
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
254
229
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
229
222
229
A
B
C
D
E
F
A
B
C
D
E
F
10
9
9
508
8 3/4
508
9
495
524
457
20 5/8
775
18
699
20
20
19 1/2
1359
53 1/2
1565
61 5/8
1486
58 1/2
826
1264
49 3/4
1492
58 3/4
1575
62
1299
51 1/8
1499
59
1386
54 9/16
584
26
30 1/2
1661
65 3/8
1692
66 5/8
1511
59 1/2
1753
69
27 1/2
1286
50 5/8
1326
52 3/16
1122
44 3/16
1314
51 3/4
150
1486
58 1/2
1534
60 3/8
1308
51 1/2
1499
59
593
23 1/3
1241
48 7/8
150
23
1372
54
32 1/2
1486
58 1/2
178
mm
in.
mm
in.
mm
in.
mm
in.
G
H
G
H
150
6
150
178
6
6
6
6
7
7
Figure 2 Installation Dimensions (Center Flue Models)
Figure 3 Installation Dimensions (Center/Rear Flue
Models)
– 8 –
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VENT
DRAFT
REGULATOR
RISE 20mm/m
(1/4 in./ft.)
BLOCKED VENT
SAFETY SWITCH
FILL CAP
SERVICE
SWITCH
LEVEL
GAUGE
T&P VALVE
AQUASTAT
OIL
OPERATING
STORAGE
TANK
INSTRUCTIONS
CUT OFF VALVE
OIL FILTER
OIL
BURNER
Figure 4 Installation Diagram
Houses built in accordance with the “National Building
Code of Canada, 1985” (or subsequent edition), with
extensive exterior stucco coating, or with a sealed vapour
barrier or other similar air sealing technique, will often be
sufficiently airtight so that there is not sufficient air for both
combustion and venting the products of combustion of an
oil-fired appliance, or for replacing the air vented by other
exhaust devices within the house.
Air Requirements
An adequate supply of combustion and ventilation air is
required to:
• Ensure proper combustion.
• Reduce risk of property damage, severe bodily injury or
death from possible flue gas leakage and carbon monox-
ide emissions.
Do not install an exhaust fan in the same room as the water
heater.
Satisfactory combustion cannot be sustained in an area that
is not provided with fresh air. Fresh air contains oxygen that
is necessary for proper combustion. If the water heater is
installed in a confined space, sufficient fresh air must be
drawn in from outside of the enclosure.
Outdoor Combustion & Ventilation Air
(Unconfined space)
If the water heater is installed in an unconfined space in a
building having insufficient infiltration, additional air for com-
bustion and ventilation shall be obtained from outdoors or
from spaces freely communicating with the outdoors. Under
these conditions, permanent opening(s) shall be provided
so that the total air received through these openings will be
at least as much as would be admitted by openings having
NOTE: Lack of adequate fresh air supply may cause a
poor flame.
Air Supply
2
2
a total free area of 4.5 cm /kWh (1 in /5000 Btu/h) of the
total input rating of all oil-fired appliances.
CAUTION
Outdoor Combustion & Ventilation Air (Confined
space)
If an all-house ventilation fan is used, a sep-
arate outside air duct must be used and
ducted to the furnace room and/or room
where the water heater is located.
A heater installed in a confined space that obtains all of its
air for combustion and ventilation from outside the building
shall be provided with two permanent openings, one near
the top of the enclosure and another near the bottom. Each
opening shall communicate directly or by means of ducts
with the outdoors or to such spaces (such as a crawl space)
that freely communicate with the outdoors, and shall be
sized in accordance with “Air Duct Sizing”.
In Canada:
If the water heater is installed in a house built to the require-
ments of the “National Building Code of Canada, 1985”,
or a subsequent edition, the space shall be provided with air
inlets as outlined below, or have a mechanical air-supply
system of sufficient equivalent capacity. If a mechanical air-
supply system is used, it shall be interlocked to the appli-
ance or equipment.
NOTE: In unconfined spaces in buildings of conventional
frame, brick, or stone construction built prior to the require-
ments of the “National Building Code of Canada, 1985”,
and not subsequently significantly air-tightened, infiltration is
normally adequate to provide air for combustion and some
ventilation; however, there may be notable exceptions.
Outdoor Combustion Air & Indoor Ventilation
Air (Confined space)
An appliance located in a confined space that obtains its
combustion air from outdoors and ventilation air from within
the conditioned space of the building shall be provided with
two permanent openings for ventilation. One located near
the top of the enclosure and another near the bottom. Each
opening shall have a free area of not less than 19.5
2
2
cm /kWh (1 in /1000 Btu/h) of the total input rating of all
– 9 –
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appliances in the enclosure, freely communicating with inte- ing the oil-fired water heater. Inspect existing chimney
rior areas that have in turn adequate infiltration from the out- before installing the water heater. Failure to do any of the
side. It shall also have a combustion air supply opening so following can result in serious property damage, severe
that the total air received through the opening will be at least bodily injury or death:
as much as would be admitted by openings having a total
free area of 4.5 cm /kWh (1 in /5000 Btu/h) of the total input
rating of all oil-fired appliances in the enclosure.
• Clean the chimney, including removal of blockage.
• Repair or replace damaged pipe or liner.
• Repair mortar and joints.
2
2
To prevent downdrafts, extend the chimney at least 1m (3 ft.)
above the highest point where it passes through the roof
and 600mm (24 in.) higher than any portion of the building
within 3m (10 ft.). Increase chimney cross-sectional area
and height at least 4% per 305m (1,000 ft.) above sea level.
Indoor Combustion & Ventilation Air (Confined
space)
A heater installed in a confined space and that obtains all of
its air for combustion and ventilation from within the condi-
tioned space of the building shall be provided with two per-
manent openings, one near the top of the enclosure and
another near the bottom. Each opening shall have a free
Flue Pipe
NOTE: Type “L” vent material is generally considered to be
not suitable for this application. Flue temperatures may
exceed 300°C (572°F). Use flue piping approved for this
installation.
2
2
area of not less than 19.5 cm /kWh (1 in /1000 Btu/h) of the
total input rating of all appliances in the enclosure, freely
communicating with interior areas that have in turn ade-
quate infiltration from the outside.
Long horizontal flue pipes, excessive number of tees and
elbows or other obstructions restrict flue gas flow, and can
result in the possibility of condensation, flue gas leakage
and carbon monoxide emissions. These conditions can lead
to serious property damage, severe bodily injury or death.
The flue pipe should be the same size as the breech con-
nection on the appliance. The sizes generally are 150mm (6
in.) for burners rated less than 1.00 GPH and 178mm (7 in.)
for burners rated 1.00 to 1.50 GPH. The flue pipe should be
as short as possible and installed so that it has a continuous
rise of 20mm/m (1/4 in./ft.) of horizontal length from the
breech connection on the appliance to the chimney. Elbows
should be minimized and the sections of pipe and fittings
should be joined with sheet metal screws and straps.
Air Duct Sizing
The air duct requirements shall be met by one of the follow-
ing methods:
1. vertical duct(s) with a free area of not less than 5.5
2
2
cm /kWh (1 in /4000 Btu/h) of the total input rating of all
appliances in the enclosure;
2. horizontal duct(s), with an equivalent length of less than
15 m (50 ft), having a free area of not less than 11
2
2
cm /kWh (1 in /2000 Btu/h) of the total input of all appli-
ances in the enclosure; and
3. air openings that communicate directly with the out-
2
doors, having a free area of not less than 5.5 cm /kWh
2
(1 in /4000 Btu/h) of the total input rating of all appli- Routing should be made in such a way as to avoid sharp
ances in the enclosure.
turns or unduly long runs. It is recommended that the heater
NOTE: Duct runs that are primarily horizontal and that have be piped to its own individual flue. Where there is only one
an equivalent length greater than 15 m (50 ft) should be flue for both furnace and water heater, various methods are
sized accordingly larger to provide the same air flow as practiced in which the water heater flue enters the chimney
would be provided by the requirements of method (3) above. above the main smoke pipe. Also, a “Y” fitting is frequently
used to combine the heater and furnace flues, prior to enter-
In U.S.A.:
ing the chimney connection (see Figure 4, check with local
Refer to “Standard for the Installation of Oil-Burning authorities having jurisdiction). Obtain a gas-tight seal to
Equipment (NFPA 31)”
prevent possible flue gas leakage and carbon monoxide
emissions, which can lead to severe bodily injury or death.
Vent and Exhaust Connections
General chimney requirements
Draft Regulator
This device is used on conventional chimney venting only. It
automatically maintains a constant negative pressure in the
chimney to obtain maximum efficiency. If the chimney does
not develop sufficient draft, the draft control cannot function
properly. The heater must be equipped with an approved
draft regulator of adequate size. Ensure the draft regulator
diameter is at least as large as the flue pipe diameter. Follow
manufacturers recommended instructions for installation. It
must be installed in the flue pipe before it enters the chim-
ney and after the Blocked Vent Safety Switch, if one is used.
Set the draft regulator at -0.03 in. w.c. (-0.0075kPa), as
measured in the flue (between the heater and the draft reg-
ulator). Recommended over-fire draft is -0.02 in. w.c. (-
0.005kPa).
For a burner designed for natural draft connect the vent to a
vertical chimney. Insufficient draft can cause flue gas leak-
age and carbon monoxide emissions, which can lead to
severe bodily injury or death. Use vent material approved by
local codes for oil-fired burners. In the absence of such
codes, refer to:
• “Installation Code for Oil-Burning Equipment (CSA
B139-04)” (Canadian installations).
• “Standard for the Installation of Oil-Burning
Equipment (NFPA 31)” (USA).
• “Standard for Chimneys, Fireplaces, Vents, and Solid
Fuel-Burning Appliances (NFPA 211)” (USA).
NFPA 211 requires the chimney to be lined before connect-
– 10 –
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Chimney
Installation of Power Venter
Be sure that the chimney is sufficiently high and large The “Installation Code for Oil-Burning Equipment (CSA
enough to meet the specifications of the burner unit B139-04)” or “Standard for the Installation of Oil-
installed. Check that there is sufficient draft for the proper Burning Equipment (NFPA 31)”, local codes and the man-
burning of oil. At least -0.015 in. w.c. (-0.004kPa) of over-fire ufactures instructions should be adhered to in all installa-
draft is recommended.
tions of the water heaters and power venters. A draft regu-
lator must be used in conjunction with the installation of the
power venter (see “Draft Regulator”). Consult the applicable
codes to calculate the equivalent length of pipe for each fit-
ting in the vent system. Add this (equivalent) length to the
length of the straight runs of pipe to determine the total
equivalent vent pipe length.
Blocked Vent Safety Switch
Oil-fired water heaters must be fitted with the blocked vent
safety switch supplied with your heater. The installation pro-
cedure is given below. For further details and information
refer to the instruction sheet supplied with the switch. (Not
required for JWF307V.)
SWG II 4HD
POWER
CK SERIES
CONTROL KIT
VENTER
Installation
1. Pierce a 16mm (5/8 in.) dia. hole into the flue pipe
305mm to 457mm (12 to 18 in.) from the breech con-
nection of the water heater. Remove one of the securing
nuts from the pipe of the safety switch. Tighten the other
securing nut onto the pipe as far as possible.
2. Insert the threaded pipe end into the pierced hole, then
install the securing nut, which was removed in step 1,
and tighten securely.
DRAFT
REGULATOR
SEE MANUFACTURER’S
INSTRUCTIONS
CAUTION:: Turn "OFF" the electrical supply to the water
heater when wiring safety switch.
3. Wire the safety switch in series with L1 of the electrical
supply (see Figures 9, 10 & 11). Install and route wiring
in an accordance with “Canadian Electrical Code Part
1 (C22.1)” and any applicable local codes.
OIL FIRED
WATER
HEATER
CAUTION: If for any reason the system has shut down
during operation, the cause of the system failure should be
investigated and corrected before resetting the safety switch
and re-starting the system.
Power Venting
Models JWF307, JWF507 and JWF657 may be power vent-
ed with a Field SWGII 4HD Power Venter. The following
control kits may be used with the SWGII 4HD:
CK 61 Electronic Post Purge.
CK 62 Thermally Activated Post Purge.
Figure 6 Power Venting
Water Supply
Piping Installation
Piping, fittings, and valves should be installed according to
the applicable installation drawing (Figures 7 & 8). A pres-
sure-reducing valve and/or an expansion tank may be
required for installations where the water pressure is high.
The pressure-reducing valve should be located on the sup-
ply to the entire house in order to maintain equal hot and
cold water pressure.
WHEN MODEL JWF307 IS TO BE FIRED AT
THE MAXIMUM RECOMMENDED RATE OF
0.75 GPH, THE FLUE BAFFLE MUST BE
ALTERED AS IN THE DIAGRAM. BOTH HALF
DISCS MUST BE BENT FLAT AGAINST THE
BODY OF THE BAFFLE.
THIS IS REQUIRED TO ALLOW FLUE GAS
PASSAGE AT THE HIGHER FIRING RATE.
Important:
• Do not apply heat to the water fittings on the heater as
they may contain nonmetallic parts. If solder connections
are used, solder the pipe to an adaptor before attaching
the adaptor to the hot and cold water fittings.
• Some models may contain energy saving heat traps to
prevent the circulation of hot water within the pipes. Do
not remove the inserts within the heat traps.
Figure 5 Baffle Modification (JWF307)
– 11 –
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Filling the Water Heater
• Always use a proper grade of joint compound and be cer-
tain that all fittings are drawn up tight.
Do not insert the power cord into the electrical receptacle
until all the following steps have been completed.
1. Make sure the drain valve is closed.
1. Install the water piping and fittings as shown in Figures
7 or 8. Connect the cold water supply to the fitting (3/4”
NPT) marked “COLD” (or “C”). Connect the hot water
supply to the fitting (3/4” NPT) marked “HOT” (or “H”).
2. The installation of unions in both the hot and cold water
supply lines is recommended.
3. The manufacturer of this water heater recommends
installing a tempering valve in the domestic hot water
line. These valves reduce the point-of-use water tem-
perature by mixing cold and hot water. Contact a
licensed plumber or the local plumbing authority.
4. If installing the water heater in a closed water system,
install an expansion tank in the cold water line as spec-
ified under “Closed System/Thermal Expansion”.
5. Install a shut-off valve in the cold water inlet line. It
should be located close to the water heater and be eas-
ily accessible. The owner/operator must be shown the
location of this valve and be given instructions on how
to use it to shut off the water to the heater.
2. Open all hot water faucets served by the system to allow
air to escape from the tank.
3. Open the cold water inlet valve.
NOTE: When filling, avoid water leakage. Do not allow the
insulation of the water heater to get wet as water can reduce
the effectiveness of the insulation.
4. When an uninterrupted stream of water, without appar-
ent air bubbles, flows from the open hot water faucets,
the tank is full.
5. Close the hot water faucets and check the system for
leaks. Repair as required and retest.
6. Connect a hose to the drain valve and route to a suit-
able drain.
7. Open the drain valve and let water run to flush out any
foreign matter that may have entered the system.
Continue flushing until clean water flows.
8. Close the drain valve, disconnect the hose, ensure the
drain valve does not drip and re-fill the tank.
NOTE: Rear and Combination flue heaters are equipped
with a combination cold water inlet/drain valve.
Please note the following:
DO NOT install this water heater with iron piping. The sys-
tem should be installed only with piping that is suitable for
potable (drinkable) water such as copper, CPVC or poly-
butylene. DO NOT use PVC water piping.
COLD WATER
SHUT-OFF
VACUUM BREAKER
HOT WATER
OUTLET
COLD WATER
BREECH
CONNECTION
SHUT-OFF
FLUE COLLAR
HOT WATER
OUTLET
CAPPED FOR REAR
FLUE USE (OPTIONAL)
NIPPLE
TOP
T&P VALVE
T&P VALVE
AQUASTAT
TEMPERATURE
CONTROL
AQUASTAT
TEMPERATURE
CONTROL
DRIP TUBE
COLD INLET AND
DRAIN VALVE
COMBINATION
DRAIN
VALVE
CENTER OF
BLAST TUBE
CENTER OF
BLAST TUBE
NON-COMBUSTIBLE
FLOOR
NON-COMBUSTIBLE
FLOOR
150 TO
305mm
6 TO 12”
150 TO
305mm
6 TO 12”
Figure 7 Plumbing Connections (Center Flue)
Figure 8 Plumbing Connections (Center/Rear Flue)
– 12 –
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DO NOT use any pumps, valves, or fittings that are not com- Water Supply Systems”, ANSI Z21.22/CSA 4.4”. The
patible with potable water. function of the temperature and pressure relief valve is to
DO NOT use valves that may cause excessive restriction to discharge water in large quantities in the event of excessive
water flow. Use full flow ball or gate valves only. temperature or pressure developing in the water heater. The
DO NOT use any lead based solder in potable water lines. valve’s relief pressure must not exceed the working pres-
Use appropriate tin-antimony or other equivalent material. sure of the water heater as stated on the data plate.
DO NOT tamper with the aquastat, burner or temperature Important: Only a new temperature and pressure relief
and pressure relief valve. Tampering voids all warranties. valve should be used with your water heater. Do not use an
Only qualified service technicians should service these com- old or existing valve as it may be damaged or not adequate
ponents.
for the working pressure of the new water heater. Do not
DO NOT use with piping that has been treated with chro- place any valve between the relief valve and the tank.
mates, boiler seal, or other chemicals.
DO NOT add any chemicals to the system piping which will The Temperature and Pressure Relief Valve:
contaminate the potable water supply.
•
•
•
Must not be in contact with any electrical part.
Must be connected to an adequate discharge line.
Must not be rated higher than the working pressure
shown on the data plate of the water heater.
Closed System/Thermal Expansion
Periodic discharge of the temperature and pressure relief
valve may be due to thermal expansion in a closed water
supply system. The water utility supply meter may contain a The Discharge Line/Driptube:
check valve, backflow preventer or water pressure-reducing
valve. This will create a closed water system. During the
heating cycle of the water heater, the water expands caus-
ing pressure inside the water heater to increase. This may
cause the temperature and pressure relief valve to dis-
charge small quantities of hot water. To prevent this, it is rec-
ommended that a diaphragm-type expansion tank (suitable
for potable water) be installed on the cold water supply line.
The expansion tank must have a minimum capacity of 5.6
litres (1.5 US gallons) for every 190 litres (50 US gallons) of
stored water and be rated at the working pressure of the
water heater. Contact the local water supplier or plumbing
•
Must not be smaller than the pipe size of the relief valve
or have any reducing coupling installed in the discharge
line.
Must not be capped, blocked, plugged or contain any
valve between the relief valve and the end of the dis-
charge line.
Must terminate a maximum of 300mm (12 in.) (Canada)
or 150mm (6 in.) (U.S.A.) above the floor.
Must be capable of withstanding 121°C (250°F) without
distortion.
Must be installed to allow complete drainage of both the
valve and discharge line.
•
•
•
•
inspector for information on other methods to control this sit- NOTE: Rear and Combination flue units must be fitted with
uation. a T&P Relief Valve WATTS type 40XL-5 or equivalent.
Important: Do not plug or remove the temperature and Failure to install and maintain a new, properly listed
pressure relief valve.
temperature and pressure relief valve will release the
manufacturer from any claims which may result from
excessive temperature or water pressure.
Temperature and Pressure (T&P) Relief Valve
WARNING
Vacuum Relief Valves
A vacuum relief valve, installed in the cold water supply line
above the top of the water heater, shall protect the water
heater against siphoning (loss of water due to loss of supply
pressure). Where heating equipment has a bottom supply,
the cold water supply piping shall be carried above the top
of the heater before being routed to the supply connection
and have a vacuum relief valve installed in it at a level above
the top of the storage tank. The vacuum relief valve shall be
in compliance with the latest edition of “Standard For Relief
Valves For Hot Water Supply Systems, ANSI Z21.22/CSA
4.4”.
Explosion Hazard
• If the temperature and pressure relief
valve is dripping or leaking, have a
licensed plumber repair it.
• Do not plug valve.
• Do not remove valve.
• Failure to follow these instructions can
result in death or an explosion.
For protection against excessive pressures and tempera-
tures, a temperature and pressure relief valve must be
installed in the opening marked “T&P RELIEF VALVE”. This
valve must be design certified by a nationally recognized
testing laboratory that maintains periodic inspection of the
production of listed equipment or materials as meeting the
requirements of the “Standard For Relief Valves For Hot
– 13 –
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Installation Of The Aquastat
Electrical Supply
General wiring requirements:
(Temperature Control)
Electric shock hazard. Can cause severe personal injury or
death if power source, including service switch on heater, is
not disconnected before installing or servicing. Installations
must comply with the latest editions of these codes:
• “Canadian Electrical Code Part 1 (CSA C22.1)”
(Canada).
This heater operates automatically under the control of the
aquastat, which responds to the demand of hot water.
Depending on the model, the aquastat well and wiring is
either installed on the heater, or included in the carton con-
taining the burner. If the installation of the aquastat is
required, proceed as follows:
1. Locate the aquastat well opening in the front of the
heater.
2. Apply a good grade of pipe joint compound to the
threads on the well.
3. Install the well in the tank opening, tighten firmly to
ensure there are no leaks.
4. Insert the sensing bulb of the aquastat into the well and
secure the aquastat to the well using the screw provid-
ed.
• “National Electrical Code, ANSI/NFPA 70”, (USA).
• Any additional local, provincial, national or state codes.
Wiring must be N.E.C. Class 1. If original wire supplied with
the heater is to be replaced, TYPE 105°C wire or equivalent
must be used. Supply wiring to heater and additional control
wiring must be 14 GA. or heavier. Provide an electrical
ground as required by codes.
5. Wire the control to the burner as shown in the wiring dia-
grams (Figures 9, 10 & 11).
R7184
L1
BLACK
RED
T
LINE VOLTAGE
L1 HOT
LIMIT
L2
JUMPER
THERMOSTAT OR
AQUASTAT®
CONTROL
LIMIT
T3
2
BLOCKED
VENT
L2 NEUTRAL
WHITE
VIOLET
ORANGE
BLUE
ENVIRACOM™
TERMINAL
SAFETY
SWITCH
VALVE
1
OIL VALVE
BURNER
MOTOR
BURNER
MOTOR
IGNITOR
IGNITOR
TO
YELLOW
REMOTE
ALARM
CIRCUIT
ALARM
CAD
CELL
CAD
CELL
YELLOW
Figure 9 Typical Primary Control Wiring
BURNER JUNCTION BOX
(R7184P).
R7184
T
LINE VOLTAGE
THERMOSTAT OR
AQUASTAT®
L1 HOT
L1
BLACK
WHITE
VIOLET
ORANGE
BLUE
JUMPER
LIMIT
T3
2
CONTROL
BLOCKED
VENT
SAFETY
SWITCH
L2 NEUTRAL
L2
ENVIRACOM™
TERMINAL
VALVE
1
OIL VALVE
BURNER
MOTOR
BURNER
MOTOR
IGNITOR
IGNITOR
TO
YELLOW
REMOTE
ALARM
CIRCUIT
ALARM
CAD
CELL
CAD
CELL
YELLOW
Figure 10 Typical Primary Control Wiring
BURNER JUNCTION BOX
(R7184B).
– 14 –
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48245
BLACK
WHITE
L1 HOT
LIMIT
T
T
F
F
BLOCKED
VENT
SAFETY
SWITCH
L2 NEUTRAL
GROUND
JUMPER
JUNCTION BOX
CAD
CELL
OIL VALVE
ORANGE
BURNER
MOTOR
IGNITOR
Figure 11 Typical Primary Control Wiring
BURNER JUNCTION BOX
(48245).
– 15 –
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Check Here
Installation Checklist
IV) OPERATION
Startup
1.
Have the safety precautions described in the
manual been implemented?
CAUTION:
2.
Does the oil piping conform to the recommen-
dations of your Oil Supply Company?
Read before proceeding. If you do not follow
these instructions exactly, a fire or explosion
may result, causing property damage, per-
sonal injury or loss of life.
3.
4.
Has the oil piping been tested for leaks?
Is the clearance between the water heater
and combustible construction as per specifica-
tions?
DO NOT ATTEMPT TO START BURNER IF ANY OF THE
FOLLOWING CONDITIONS EXIST:
1. Excess oil has accumulated.
5.
Is the water piping correctly connected? Are
you certain that there are no leaks?
2. The unit is full of vapours.
6.
7.
8.
Is the water heater filled with water?
Is the cold water supply valve open?
NOTE: Refer to the instruction manual supplied with the
burner for installation, start up and adjustment.
Is the flue pipe installed properly and are the
vertical and horizontal runs properly support-
ed?
After the installation is finished and the installation checklist
completed, proceed as follows:
1. Set the draft regulator for full draft.
2. Turn on oil at the tank. Adjust the air band on the burn-
er according to the instructions provided by the burner
manufacturer.
9.
Is the draft regulator intake opening unob-
structed?
10. Is the T&P valve installed? Are the drain pipe
(if installed) and T&P valve unobstructed?
3. Close the inspection cover on the burner mounting
panel, and press the reset button on the combustion
safety control.
4. Set electric switch to “ON” position. The burner should
start.
11. Is a drain pan installed (if required) with a
proper overflow pipe, directed to a drain?
5. Make the air adjustment and take the necessary com-
bustion test readings as specified by the burner manu-
facturer.
12. Have you taken steps to prevent water dam-
age in case of leaks?
13. Does the area around the water heater have
adequate ventilation?
Water Temperature Regulation
Once installed, the operation will be completely automatic.
The thermostat (aquastat) on the water heater is adjustable
and will maintain water at the desired temperature.
Thermostats are factory set at 49°C (120°F). Contact a qual-
ified Oil-Burner Technician for adjustment. Set the tank ther-
mostat as low as possible to provide an adequate supply of
hot water. This will conserve oil and extend the life of the
tank.
14. Air moving device does not create negative
pressure?
15. Flammable vapours and materials are not
placed in the proximity of the water heater?
If the answer to all the above is “Yes”, proceed with
the “Startup” instructions.
WARNING:
Risk of scalding
Hot water can produce third degree burns
in 6 seconds at . . . . . . . .60°C (140°F)
in 30 seconds at . . . . . . .54°C (130°F)
in 5 minutes at . . . . . . . . .49°C (120°F)
– 16 –
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3. Drain approximately 20 litres (5 US gallons) of water
from tank (Refer to “Draining and Flushing” for proper
procedures.) Close drain valve.
4. Remove old anode rod.
5. Use Teflon® tape or approved pipe sealant on threads
and install new anode rod.
Water Heater Operation
WARNING:
Keep the area around the heater clear and
unobstructed.
6. Turn on water supply and open nearby hot water faucet
to purge air from water system.
7. Restart the water heater as directed under “Startup.”
Stacking
Stacking occurs when a series of short draws of hot water
(11 litres (3 US gallons) or less) are taken from the water
heater tank. This causes increased cycling of the burner and
can result in increased water temperatures at the hot water
Anode Maintenance
outlet. A tempering device is recommended in the hot water A new anode is about 20mm (13/16 in.) to 22mm (7/8 in.)
supply line to reduce the risk of scald injury.
diameter and has a steel wire core approximately 3mm (1/8
in.) diameter in the center. If the anode is less than approx-
imately 10mm (3/8 in.) in diameter, or the inner steel core is
exposed, the anode(s) should be replaced. Operating a
water heater without an actively working anode(s) will void
the warranty.
Water Heater Sounds
During the normal operation of the water heater, sounds or
noises may be heard. These noises are common and may
result from the following:
1. Normal expansion and contraction of metal parts during
periods of heat-up and cool-down.
To check/replace the anode:
1. Turn "OFF" the electrical supply to the water heater.
2. Close the cold water supply valve.
3. Open a nearby hot water faucet served by the system
to depressurize the system.
4. Connect a hose to the drain valve and drain 22 litres (6
USG.) as directed in “Draining, Flushing and Sediment
Removal”.
2. Condensation causes sizzling and popping within the
burner area and should be considered normal.
3. Sediment buildup in the tank bottom will create varying
amounts of noise and may cause premature tank failure.
Drain and flush the tank as directed under “Draining and
Flushing”.
CAUTION! The water being drained can be extremely
hot! The drain hose should be rated for at least 93°C
(200°F). If the drain hose does not have this rating, open the
cold water supply valve and a nearby hot water faucet
served by the system until the water flow is no longer hot.
Close the cold water supply valve and resume.
5. Remove the anode cover, or, on JWF657, Rear and
Combination flue models, remove top cover, insulation
and flue top cover.
NOTE: The anode(s) has been factory installed using a
power tool. It may be necessary for a second person to sta-
bilize the heater. A few sharp blows on the handle of the
socket wrench should loosen the anode nut. If an impact
wrench (power drive) is available, this is an easier way to
remove an anode.
6. Using a 1 1/16" socket (certain models require 1-5/16”)
, remove the anode(s) and inspect it. The surface may
be rough, full of pits and crevices, but this is normal. If it
is less than approximately 10mm (3/8 in.) in diameter, or
the inner steel core exposed, the anode(s) should be
replaced.
7. Apply Teflon® tape, or sealing compounds approved for
use with potable water, to the threads of the anode(s)
and install into the tank top.
Smoke/Odour
The water heater may give off a small amount of smoke and
odour during the initial start-up of the unit. This is due to the
burning off of oil from metal parts of a new unit and will dis-
appear after a few minutes of operation.
Anode Rod/Water Odour
Each water heater contains at least one anode rod, which
will slowly deplete while protecting the glass-lined tank from
corrosion and prolonging the life of the water heater. Once
the anode is depleted, the tank will start to corrode, eventu-
ally developing a leak. Certain water conditions will cause a
reaction between this rod and the water. The most common
complaint associated with the anode rod is a “rotten egg
smell” produced from the presence of hydrogen sulfide gas
dissolved in the water. Do not remove this rod perma-
nently as it will void any warranties, stated or implied. A
special anode can be ordered if water odour or discoloura-
tion occurs. This rod may reduce, if not eliminate, water
odour problems. The water supply system may require
special filtration equipment from water conditioning compa-
ny to successfully eliminate all water odour problems.
Artificially softened water is exceedingly corrosive because
the process substitutes sodium ions for magnesium and cal-
cium ions. The use of a water softener may decrease the life
of the water heater tank. The anode rod should be inspect-
ed every year. If the rod is more than 50% depleted, the
anode rod should be replaced.
8. Open the cold water supply valve and open a nearby
hot water faucet to purge air from the water tank as
directed in “Filling the Water Heater”.
9. Check for leaks. Repair as required, and re-test.
10. Replace the covers and insulation and turn the electrical
supply to the heater “ON”.
To replace the anode:
1. Turn off oil supply to the water heater.
2. Shut off the water supply and open a nearby hot water
faucet to depressurize the water tank.
– 17 –
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• Keep the air ventilation openings unobstructed. If dust
and lint is seen accumulating around the openings,
remove it.
• Do not pile cartons, papers, or combustible materials on
top, or near the heater (see Figure 1).
V) MAINTENANCE
Do not attempt to repair your water heater. Call a qualified
Oil-Burner Technician for service. Turn “OFF” the electric
power whenever the water supply is shut off. Before calling
for service, check that:
1. The heater is properly filled.
2. The electrical supply has not been interrupted.
Draining and Flushing
It is recommended that the tank be drained and flushed
every 6 months to remove sediment that may build up dur-
ing operation. The water heater should be drained if being
shut down during freezing temperatures. To drain the tank,
perform the following steps:
1. Turn off the electrical supply to the water heater.
2. Close the cold water inlet valve.
3. Open a nearby hot water faucet.
4. Connect a hose to the drain valve and terminate it to an
adequate drain.
Note: The drain hose should be rated for at least 93°C
(200°F). If the drain hose does not have this rating, open the
cold water inlet valve and a nearby hot faucet until the water
is no longer hot.
5. Open the water heater drain valve and allow all the
water to drain from the tank. Flush the tank with water
as needed to remove sediment.
Professional Maintenance
Except for external appearance and area tidiness, the fol-
lowing steps should be performed only by a qualified Oil-
Burner Technician.
1. Lift out the flue baffle to clean the flue. (On rear and
combination flue heaters, the top cover, insulation and
flue top cover must be removed.)
2. Insert a flue brush down the flue passage way(s) to
remove soot and dirt. Soot or carbon that falls into the
combustion chamber will burn up within a very short
time.
3. In normal use, there should be no large accumulation of
soot in the combustion chamber. If there is, remove the
burner and carefully brush or vacuum the combustion
chamber.
6. Close the drain valve, refill the tank, and restart the
heater as directed under “Water Heater Operation”.
If the water heater is going to be shut down for an extended
period, the drain valve should be left open.
Important: Condensation may occur when refilling the tank
and should not be confused with a tank leak.
Flue Pipes
Once a year, inspect the flue pipe leading from the heater to
the chimney. If corrosion is evident, or discolouration at the
joints can be seen, replace the flue pipes. This should be
done by a qualified Oil-Burner Technician. Flue pipes must
be replaced by the same size flue pipe as the flue collar
(breech connection) at the heater.
Temperature and Pressure Relief Valve
Manually operate the temperature and pressure relief valve
at least once a year to make sure it is working properly (see
Figure 12). To prevent water damage, the valve must be
properly connected to a discharge line that terminates at an
adequate drain. Standing clear of the outlet (discharged
water may be hot), slowly lift and release the lever handle on
the temperature and pressure relief valve to allow the valve
to operate freely and return to its closed position. If the valve
fails to completely reset and continues to release water,
immediately shut off the power to the heater and the cold
water inlet valve and call a qualified service technician.
Combustion Tests
Burner adjustments:
Final burner adjustments must be made using combustion
test equipment to assure proper operation. Do not fire
heater without water or sections will overheat.
1. Refer to burner manual for start-up.
2. Allow heater to heat to design condition.
3. Using combustion test equipment, adjust burner for:
a. CO between 11% and 12% and a trace of smoke
2
between No. 0 smoke and No. 1 smoke.
b. over-fire draft -0.01 to -0.02 in. w.c. (-0.0025 to -
0.005kPa) draft in combustion chamber (+0.25 in.
w.c. (+0.062kPa) for JWF307V).
NOTE: For JWF307V also see additional “Installation
Instructions for Through-the-wall Venting Components" that
is supplied with the JWF307V.
Temperature and Pressure
Relief Valve
Manual Relief Valve
Routine Preventative Maintenance (by
owner/operator)
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 vapors and liq-
uids.
Discharge line to drain
Figure 12 T&P Valve Test
– 18 –
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5. Reassemble in reverse order. It may be necessary to
replace the gaskets around the nipples to seal them at
the flue collector. Replace the insulation and the casing
top.
WARNING
6. Reconnect the plumbing lines.
Explosion Hazard
• If the temperature and pressure relief
valve is dripping or leaking, have a
licensed plumber repair it.
• Do not plug valve.
• Do not remove valve.
Shut Down For Extended Periods
When away for extended periods of time such as vacation,
and no freezing temperatures are expected:
1. Shut off the oil supply at the tank.
2. Shut off the cold water supply to the heater.
3. Turn "OFF" the electrical supply to the water heater.
4. Open an upstairs hot water faucet (to relieve any pres-
sure).
• Failure to follow these instructions can
result in death or an explosion.
When freezing temperatures are expected:
1. Shut off the oil supply at the tank.
2. Shut off the cold water supply to the heater.
Cleaning Instructions, Flue Passages
NOTE: It is recommended that all water lines
in the home be drained. Contact a qualified
plumber for directions applicable to the
Of The JWF657 Heater
Refer to Figure 13 for components of the heater.
1. Remove the casing top and lift the insulation off com-
pletely. It is necessary to disconnect the hot and cold heater.
water lines and move them out of the way. Do not
3. Turn "OFF" the electrical supply to the water heater.
remove the nipples from the tank.
2. Lift off the flue collector. The flue collector has a lip on
the outer edge which will allow a hook to grab the edge
to help lift it up.
4. Connect a hose to the drain valve and drain as directed
in “Draining, Flushing and Sediment Removal”.
5. Leave the drain hose attached as a reminder that the
tank has no water in it.
3. Remove the flue baffles (4).
4. With a 76mm (3 in.) diameter wire brush, 1.2m (4 ft.)
long, remove any soot build-up which may be on the top
head or inside the flue collector.
Re-Starting The Heater After Shut-
Down
CAUTION
WIRE BRUSH
BAFFLE
CASING TOP
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 (2) weeks or more).
Hydrogen gas is extremely flammable and can ignite
when exposed to a spark or flame. 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 con-
nected to the hot water system. Use caution in opening
faucets. 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.
HOOK
FLUE
COLLECTOR
INSULATION
NIPPLES
1. Follow instructions for “Filling the Water Heater” and
“Startup” when heater is ready to be put back into ser-
vice.
2. If the heater does not start, check to see if the relay on
the burner has tripped. Reset if necessary. Check to see
if the thermostat is set at “Normal” or “High”.
3. If the heater does not start:
a. Turn "OFF" the electrical supply to the water heater.
b. Shut off the oil supply at the tank.
c. Call a qualified Oil-Burner Technician.
Figure 13 Cleaning Flue Passages Of The JWF657
Heater
– 19 –
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VI) COMBO HEATING
WARNING:
Keep the area around the heater clear and
unobstructed.
This section serves as a guide for the installation and use of
“Combo” heating systems utilizing a domestic water heater
that has been specifically approved for such use. It is writ-
ten for those knowledgeable in the required trades and pro-
fessionals involved in the design and installation of Combo
Heating Systems.
It is the responsibility of the installer/designer to follow
all applicable codes to ensure the effectiveness and
safety of the installation.
Read Before Proceeding
CAUTION:
Keep safety your first priority. Take all pre-
cautions to avoid creating a fire, health or
safety hazard.
The following requirements must be met for the installation
of Combo Heating Systems:
1. All components used for the distribution of water in the
heating loop must be suitable for potable water. These
include all piping, fittings, solder and fluxes, pumps for
circulation of water, valves, etc.
2. The water heater must not be connected to a hydronic
heating system that has been used previously.
3. No boiler treatment chemicals of any kind shall be intro-
duced into the system.
4. The Combo System components must be selected and
sized to meet and maintain the total calculated demands
for both domestic service hot water and space heating
requirement. The sizing and installation must be per-
formed in accordance with good engineering practice
such as “ASHRAE Handbooks”, HRAI, “Hydronics
Institute Manuals”, CSA B139-04, NFPA 31, ANSI
Z223.1, CSA F280, National/Provincial Building
Codes, CSA C22.1, ANSI/NFPA 70, CSA B51 and/or
codes having jurisdiction.
5. The air handler (fan coil) and/or the circulating pump in
a baseboard hydronic loop will require a dedicated 120V
circuit. This must be provided and identified for this pur-
pose.
6. All piping between the water heater and the air handler
or hydronic baseboard loop must be adequately insulat-
ed to reduce heat loss.
7. If the local jurisdiction requires a back-flow preventer in
the cold water line, an expansion tank of adequate size
must be installed.
8. “Combo” Heating Systems require higher water temper-
atures than other applications. When the system is used
to supply water for Combo Heating applications, a
means, such as mixing valve, must be installed to tem-
per the water in order to reduce scald hazard potential
(see Figures 14, 15 & 16).
– 20 –
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Installation
HOT WATER
TO HOUSE
FIXTURE
The heating mode may be one of the following options:
1. A fan coil/air handler (Figure 14).
COLD SUPPLY
CHECK VALVE (IF
USED REQUIRES
EXPANSION TANK)
2. A hydronic baseboard (finned tube) loop (Figure 15).
3. A hydronic in-floor heating loop (Figure 16).
The following is a list of requirements for the installation of
the heating loop to the water heater.
MIXING
VALVE
EXPANSION TANK
(OPTIONAL)
C
H
M
1. Install shut-off valves and unions so that the water
heater can be isolated from the heating module should
servicing of the water heater become necessary.
2. Install a drain valve at the lowest point of the heating
loop so that water can be drained from the heating mod-
ule without affecting the water heater.
CHECK
VALVE
FLOW
CONTROL
200mm TO
300mm (8 in.
TO 12 in.)
EXTERNAL
CIRCULATOR
COLD
INLET
HOT
OUTLET
HOSE BIB
(OPTIONAL)
3. If the air handler does not have a venting means at the
highest point of the piping arrangement, install an air
bleed at the highest point of the plumbing arrangement.
4. If solenoid valves are used for zone heating applica-
tions, they must include electrical proof of valve full
open position and must be connected to the water
pump.
SUPPLY
WATER
HEATER
RETURN
HYDRONIC
BASEBOARDS
(SERIES CON-
NECTED
SHOWN)
Figure 15 Combo Heating - Baseboard
HOT WATER
HOT WATER
TO HOUSE
FIXTURE
TO HOUSE
FIXTURE
COLD SUPPLY
CHECK VALVE (IF
COLD SUPPLY
CHECK VALVE (IF
USED REQUIRES
EXPANSION TANK)
USED REQUIRES
EXPANSION TANK)
MIXING
VALVE
MIXING
VALVE
EXPANSION TANK
(OPTIONAL)
EXPANSION TANK
(OPTIONAL)
C
H
C
H
M
M
CHECK
VALVE
CHECK
VALVE
FLOW
CONTROL
FLOW
CONTROL
200mm TO
300mm (8 in.
TO 12 in.)
200mm TO
300mm (8 in.
TO 12 in.)
EXTERNAL
CIRCULATOR
EXTERNAL
CIRCULATOR
COLD
INLET
COLD
INLET
HOT
OUTLET
HOT
OUTLET
HOSE BIB
HOSE BIB
(OPTIONAL)
(OPTIONAL)
RETURN
SUPPLY
SUPPLY
WATER
HEATER
WATER
HEATER
DRAIN/PURGE
VALVE
RETURN
HYDRONIC
IN-FLOOR
LOOP
INTERNAL
CIRCULATOR
AIR HANDLER
Figure 14 Combo Heating - Air Handler
Figure 16 Combo Heating - In-Floor Loop
– 21 –
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VII) OIL BURNER LISTING
Model
MFGR
Burner
Nozzle & Pump Press.
Blast tube Notes
U.S. ONLY
BECKETT AFG GSW-J3037 0.75 GPH
BECKETT AFG GSW-J3036 0.75 GPH
CARLIN
CARLIN
BECKETT AFG GSW-J3037 0.75 GPH
BECKETT AFG GSW-J3036 0.75 GPH
CARLIN
CARLIN
MASS. ONLY
JW317
EZ197297AJW317 0.75 GPH
97297AJW317 0.75 x 60A DEL 85472, 100 psi
9"
9"
U.S. ONLY
MASS. ONLY
JW327
EZ197297AJW317 0.75 GPH
97297AJW317 0.75 x 60A DEL 85472, 100 psi
BECKETT AFG GSW-J5037 0.85 GPH
BECKETT AFG GSW-J5036 0.85 GPH
U.S. ONLY
MASS. ONLY
JW517
JW527
CARLIN
EZ197397AJW517 0.85 GPH
BECKETT AFG GSW-J5037 0.85 GPH
BECKETT AFG GSW-J5036 0.85 GPH
U.S. ONLY
MASS. ONLY
CARLIN
AERO
EZ197397AJW517 0.85 GPH
FAFC-3-03 1.0 GPH
BECKETT AFG GSW-J7037 1.0 GPH
BECKETT AFG GSW-J7036 1.0 GPH
U.S. ONLY
MASS. ONLY
JW717
JW727
CARLIN
CARLIN
AERO
EZ197397AJW717 1.0 GPH
97397AJW717
FAFC-3-03
1.00 x 60A DEL 38018, 100 psi
1.0 GPH
9"
9"
BECKETT AFG GSW-J7037 1.0 GPH
BECKETT AFG GSW-J7036 1.0 GPH
U.S. ONLY
MASS. ONLY
CARLIN
CARLIN
AERO
AERO
AERO
AERO
EZ197397AJW717 1.0 GPH
97397AJW717
FAFC-2X
SV-2X
1.00 x 60A DEL 38018, 100 psi
0.65 - 0 .75 GPH
0.65 - 0 .75 GPH
FAFC-2X
SV-2X
0.65 x 80A À 0.75 x 80A
0.65 x 80A À 0.75 x 80A
4 7/8"
4 7/8"
BECKETT AFG GSW-J3006 0.65 - 0.75 GPH
BECKETT AFG GSW-J3031 0.65 GPH
BECKETT AFG GSW-J3033 0.75 GPH
BECKETT AFG GSW-J3032 0.65 GPH
BECKETT AFG GSW J3034 0.75 GPH
CANADA
MASS. ONLY
MASS. ONLY
U.S. ONLY
U.S. ONLY
JWF307
CARLIN
CARLIN
RIELLO
RIELLO
RIELLO
EZ-1 #96983DA
96986AJW307
R35.3.04.OR
R35.3.04.OR
R35.3.04.OR
0.75 GPH
0.75 x 60A DEL 85472, 100 psi
0.60 - 0.65 GPH
0.60 x 60W Delavan, 130, 0.65
0.65 x 60W Delavan, 150, 0.75
0.65 - 0.75 GPH
7"
4.25"
4.25"
WAYNE HSR "Ecore"
BECKETT AFG GSW-J3007 0.65 GPH
BECKETT AFG GSW-J3009B 0.65 GPH
BECKETT AFG GSW-J3008B 0.65 GPH
CANADA
U.S.
MASS. ONLY
JWF307V
CARLIN
RIELLO
RIELLO
EZ-1
40 BF3 SBT
40 BF3 SBT
0.65 GPH
0.60 x 60A Delavan, 140, 0.65
0.75 GPH
4.188"
Table 1 Listing Of Oil Burners.
– 22 –
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Model
MFGR
AERO
AERO
AERO
AERO
Burner
FAFC-2X
SV-2X
FAFC-2X
SV-2X
Nozzle & Pump Press.
0.75 GPH
0.75 GPH
0.75 x 80A
0.75 x 80A
Blast tube Notes
5 15/16"
5 15/16"
BECKETT AFG GSW-J5006 0.75 GPH
BECKETT AFG GSW-J5032 0.75 GPH
BECKETT AFG GSW-J5031 0.75 GPH
BECKETT AFG GSW-J5041 0.75 GPH
BECKETT AFG GSW-J5040 0.75 GPH
BECKETT AFG GSW-J5999 0.75 GPH
CANADA
U.S.
MASS. ONLY
JWF507
CARLIN
CARLIN
RIELLO
RIELLO
AERO
EZ196983AJW507 0.75 GPH
96983AJW507
R35.3.05.OR
R35.3.05.OR
HF-US-2-9
0.75 x 60A DEL 85472, 100 psi
0.65 GPH
0.65 x 60A CT Delavan, 160, 0.75 5.688"
1.0 - 1.25 GPH
7"
BECKETT AFG GSW-J7006 1.0 - 1.25 GPH
BECKETT AFG GSW-J7041 1.0 - 1.25 GPH
BECKETT AFG GSW-J7040 1.0 - 1.25 GPH
CANADA
U.S.
MASS. ONLY
JWF657
CARLIN
CARLIN
RIELLO
EZ197397AJW517 1.0 - 1.25 GPH
96986AJW657
R35.5.07.OR
1.25 x 60A DEL 85548, 100 psi
0.85 - 1.1 GPH
9"
Table 1 (cont’d) Listing Of Oil Burners.
– 23 –
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~ Certificate of Warranty ~
See Rating Label Serial Number prefix for
Warranty Code: P R S T U V W
Y
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, NEGLI-
GENCE, 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 LIA-
BILITIES 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' instruc- 7. A properly documented claim shall be received by GSW or one of its
tions, all applicable equipment and building codes, ordinances and regu-
lations (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 dam-
age. 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 war-
ranty 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 sup-
plied 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 three (3) years 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 num-
ber, 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 set-
ting 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 accor-
dance 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
the Unit, proof of date on which the Unit was first installed, and the iden-
tity of the defective part(s) for which a claim is being made and be sub-
mitted 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
599 Hill Street West
Fergus, ON Canada N1M 2X1
Should you have questions, please call our Technical Support Line at 1-
888-479-8324.
connection to any attachment(s), energy saving device(s), or other means 9. If requested by GSW, information relating to the purchase, transportation,
of heating, except as approved by GSW for the Unit; other than with
potable water without any additives such as salts, chlorine or chemicals,
except those added for the sole purpose of rendering the water fit for
domestic use.
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.
6. All repairs must be made by a competent and qualified person who is cer-
tified, 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.
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|