Location Requirements; Clearances And Accessibility; Oil Supply; Burner Installation - John Wood JWF307 Installation And Operating Instructions Manual

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.
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.

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.
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.
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WARNING