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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
tank or connections will not result in damage to the area
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).

Access to oil supply (see “Oil Supply”).

Routing and support of the vent piping and termination
(see “Venting”).

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”).

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.

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
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.

Burner Installation

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.

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. THE
MANUFACTURER 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 possi-
ble. 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.

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.

Summary of Contents for JW317

Page 1: ...mmable 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 Immediately call your oi...

Page 2: ...g Installation of Power Venter Water Supply 11 Piping Installation Filling the Water Heater Closed System Thermal Expansion Temperature and Pressure T P Relief Valve The Temperature and Pressure Relie...

Page 3: ...se instructions An identifying data plate can be found at the front of your water heater When referring to your water heater always have the information listed on the data plate readily available Prot...

Page 4: ...ater igniter or burner flame can ignite these vapours causing a flashback fire or explosion which may result in severe property damage serious personal injury or death If flammable liquids or vapours...

Page 5: ...ications All JOHN WOOD brand water heaters are designed to burn only fuels not heavier than No 2 furnace oil III INSTALLATION Unpacking the Water Heater Important Do not remove any permanent instructi...

Page 6: ...r an anti siphon device must be used to prevent flow of oil in case of an oil line break Support the oil lines as required by applic able codes Make tank connections with swing joints or cop per tubin...

Page 7: ...n mm in mm in mm in mm in mm in mm in JWF307 508 20 X 152 6 610 24 51 2 51 2 457 18 229 9 JWF507 559 22 X 152 6 610 24 51 2 51 2 457 18 229 9 JWF657 660 26 X 152 6 610 24 51 2 51 2 406 16 152 6 JWF307...

Page 8: ...4 826 in 23 1 3 23 32 1 2 mm 1241 1372 1486 in 48 7 8 54 58 1 2 mm 150 178 178 in 6 7 7 G H C D E F Model Diam A B A B C D E F G H JWF307 JWF507 JWF657 JWF307V mm 508 559 660 508 in 20 22 26 20 mm 229...

Page 9: ...appliance or for replacing the air vented by other exhaust devices within the house Outdoor Combustion Ventilation Air Unconfined space If the water heater is installed in an unconfined space in a bui...

Page 10: ...e to do any of the following can result in serious property damage severe bodily injury or death Clean the chimney including removal of blockage Repair or replace damaged pipe or liner Repair mortar a...

Page 11: ...ost Purge Installation of Power Venter The Installation Code for Oil Burning Equipment CSA B139 04 or Standard for the Installation of Oil Burning Equipment NFPA 31 local codes and the man ufactures i...

Page 12: ...l 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...

Page 13: ...nd pressure relief valve is to discharge water in large quantities in the event of excessive temperature or pressure developing in the water heater The valve s relief pressure must not exceed the work...

Page 14: ...llations must comply with the latest editions of these codes Canadian Electrical Code Part 1 CSA C22 1 Canada National Electrical Code ANSI NFPA 70 USA Any additional local provincial national or stat...

Page 15: ...VE BURNER MOTOR IGNITOR LIMIT JUMPER CAD CELL T T F F WHITE BLACK 48245 BURNER JUNCTION BOX L2 NEUTRAL Figure 11 Typical Primary Control Wiring 48245 BLOCKED VENT SAFETY SWITCH L1 HOT ORANGE GROUND JU...

Page 16: ...f the tank Check Here 1 Have the safety precautions described in the manual been implemented 2 Does the oil piping conform to the recommen dations of your Oil Supply Company 3 Has the oil piping been...

Page 17: ...upply and open a nearby hot water faucet to depressurize the water tank 3 Drain approximately 20 litres 5 US gallons of water from tank Refer to Draining and Flushing for proper procedures Close drain...

Page 18: ...bustion air to the heater Keep the appliance area clear and free from combustible material gasoline and other flammable vapors and liq uids Keep the air ventilation openings unobstructed If dust and l...

Page 19: ...er in it Re Starting The Heater After Shut Down 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...

Page 20: ...mands 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 Hydron...

Page 21: ...open position and must be connected to the water pump WATER HEATER 200mm TO 300mm 8 in TO 12 in HOT OUTLET EXPANSION TANK OPTIONAL MIXING VALVE COLD INLET CHECK VALVE IF USED REQUIRES EXPANSION TANK...

Page 22: ...GPH BECKETT AFG GSW J7037 1 0 GPH U S ONLY BECKETT AFG GSW J7036 1 0 GPH MASS ONLY CARLIN EZ197397AJW717 1 0 GPH CARLIN 97397AJW717 1 00 x 60A DEL 38018 100 psi 9 AERO FAFC 2X 0 65 0 75 GPH AERO SV 2...

Page 23: ...0 75 GPH BECKETT AFG GSW J5999 0 75 GPH CARLIN EZ196983AJW507 0 75 GPH CARLIN 96983AJW507 0 75 x 60A DEL 85472 100 psi 7 RIELLO R35 3 05 OR 0 65 GPH RIELLO R35 3 05 OR 0 65 x 60A CT Delavan 160 0 75 5...

Page 24: ...the water heater s Model Number SKU Serial Number date of purchase and date of installation c THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF THIS EXPRESS WARRANTY IS W...

Page 25: ...gency beyond the control of the Manufacturer or s The water heater is installed in a closed system without adequate provision for thermal expansion 3 Except when speci cally prohibited by the applicab...

Page 26: ...26 This page intentionally left blank May be used for notes or to record other installation information...

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