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Relief Valve Requirements
For protection against excessive pressure and/or tempera-
tures, an ASME approved Temperature and Pressure (T&P)
Relief Valve must be installed in the opening provided and
labeled near the hot water outlet. Pressure rating of the
valve must not exceed the working pressure shown on the
rating plate of the water heater. The discharge capacity of
the T&P valve must be equal to or greater than the input
capacity of the water heater. The valve shall be self closing.
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.
Removing the burner may generate airborne fiber concen-
tration requiring additional protection.
First aid measures:
• Eye contact - Flush eyes with sterile water to remove
foreign objects. If irritation or other symptoms persist,
seek medical attention.
• Skin contact - Wash affected areas gently with soap and
warm water after handling.
Fuel Specifications
All JOHN WOOD brand water heaters are designed to burn
only fuels not heavier than No.2 (furnace) oil.
Location
NOTICE: Before installing this water heater, consideration
and planning must be given to the following details:
• Routing and support of the vent piping.
• How and where to obtain combustion and ventilation air
supply; See “Air Requirement
s”.
• Access to oil supply, See “Oil Supply Connections”.
• Position of water supply, floor drain and placement of
water piping for hot and cold water; See “Water Supply
Connections”.
• Connection to the electrical service. See “Electrical
Supply Connections”.
The water heater must be installed on a non-combustible
floor, as close to the chimney as practical and close to the
water piping. The unit should be installed in an area not sub-
ject to freezing temperatures. It should be located so that all
controls and drains are easily accessible (at least 610mm
(24 in.) clearance in front of the water heater). Check the
area around the installation location. Remove any com-
bustible materials, gasoline and other flammable liquids.
Failure to keep area clear and free of such materials and
vapors can result in substantial property damage, severe
bodily injury or death.
The heaters for which this manual has been written have
been approved with the minimum clearances to com-
bustibles as listed in Figure 1.
Unpacking and Inspection
Move the water heater to the location of installation before
removing the exterior packaging. Remove exterior packag-
ing and place installation components aside. Inspect all
parts for damage prior to installation and start-up.
Completely read and understand all instructions before
attempting to assemble and install this product. If you
observe damage to the water heater or any of its compo-
nents, DO NOT ASSEMBLE OR INSTALL IT OR MAKE ANY
ATTEMPT TO FIX THE DAMAGED PART(S). Contact the
place of purchase for further instructions.
Important: Do not remove any permanent instructions,
labels, or the date label from the outside of the water heater
or on the inside of panels. After installation, dispose of pack-
aging material in the proper manner.
II) SAFETY
CAUTION
POSSIBLE CANCER HAZARD BY INHALATION. CAN
CAUSE RESPIRATORY, SKIN AND EYE IRRITATION.
· 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.
WARNING
III) INSTALLATION
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.
WARNING