John Wood 300 Series User manual
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Read and understand instruction
manual and safety messages
before installing, operating or
servicing this water heater.
Failure to follow instructions and
safety messages could result in
death or serious injury.
Instruction manual must remain
with water heater.
WARNING
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- Do not store or use gasoline or other flam-
mable vapours and liquids in the vicinity of
this or any other appliance.
- WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from a
neighbor's phone. Follow the gas sup-
plier's instructions.
• If you cannot reach your gas supplier, call
the fire department.
- Installation and service must be performed by
a qualified installer, service agency or the
gas supplier.
WARNING: If the information in these instruc-
tions is not followed exactly, a fire or explosion
may result causing property damage, personal
injury or death.
Printed on 6/26/2019 12:31 PM CT
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Read instruction manual before
installing, using or servicing
water heater.
• Do not store or use gasoline or other flammable
vapours and liquids in the vicinity of this or any
other appliance.
• Avoid all ignition sources if you smell gas.
• Do not expose water heater control to excessive
gas pressure.
• Use only gas shown on rating plate.
• Maintain required clearances to combustibles.
• Keep ignition sources away from faucets after
extended period of non-use.
Fire or Explosion Hazard
WARNING
For continued protection against
risk of fire:
• Do not install water heater on
carpeted floor.
• Do not operate water heater if
flood damaged.
Fire Hazard
WARNING
•Overheated water can cause
water tank explosion.
•Properly sized temperature and
pressure relief valve must be
installed in opening provided.
Explosion Hazard
WARNING
Read and understand instruction
manual and safety messages
before installing, operating or
servicing this water heater.
Failure to follow instructions and
safety messages could result in
death or serious injury.
Instruction manual must remain
with water heater.
WARNING
Printed on 6/26/2019 12:31 PM CT
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Installation: Do not install the water heater where flammable
products will be stored or used.
Vapours from flammable
liquids may explode and
catch fire causing death or
severe burns.
Do not use or store
flammable products such as
gasoline, solvents or adhe-
sives in the same room or
area near the water heater.
Keep flammable products:
1. far away from heater,
2. in approved containers,
3. tightly closed and
4. out of children's reach.
Water heater has a main
burner and hot surface igniter.
The hot surface igniter:
1. can be triggered at any
time and
2. the hot surface will ignite
flammable vapours.
Vapours:
1. cannot be seen,
2. are heavier than air,
3. go a long way on the floor
and
4. can be carried from other
rooms to the electrodes
by air currents.
Flammable Vapours
FLAMMBLE
WARNING
Breathing carbon monoxide can cause brain damage or death.
Always read and understand instruction manual.
• Install vent system in accordance with codes.
• Do not operate water heater if flood damaged.
• For operation above 3,079 m (10,100’), a high
altitude orifice must be installed.
• Do not operate if soot buildup is present.
• Do not obstruct water heater air intake with
insulating jacket.
• Do not obstruct blower air intake.
• Do not place chemical vapour emitting products
near water heater.
• Gas and carbon monoxide detectors are
available.
• No vent damper installation is compatible with
this power vented water heater.
Breathing Hazard - Carbon Monoxide Gas
WARNING
• Before servicing the water heater, make
sure the blower assembly is unplugged
or the electrical supply to the water
heater is tumed "OFF".
• Label all wires prior to disconnection
when servicing controls. Wiring error can
cause improper and dangerous opera-
tion. Verify proper operation after
servicing.
• Failure to do this could result in death,
serious bodily injury, or property
damage.
WARNING
• Do not operate water heater if flood damaged.
• Inspect anode rods regularly, replace when significantly
depleted.
• Install in location with drainage.
• Fill tank with water before operation.
• Properly sized thermal expansion tanks are required on all
closed water systems.
Refer to this manual for installation and service.
Improper Installation, use and service may result
in property damage.
CAUTION
Printed on 6/26/2019 12:31 PM CT
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• Do not store or use gasoline or other flammable vapours
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• Avoid all ignition sources if you smell gas.
• Do not expose water heater control to excessive gas
pressure.
• Use only gas shown on rating plate.
• Maintain required clearances to combustibles.
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period of non-use.
Fire or Explosion Hazard
WARNING
FLAMMABLE
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance. Storage or
use of gasoline or other flammable vapors or liquids in the
vicinity of this or any other appliance can result in serious injury
or death.
Can result in serious injury or death
FIRE AND EXPLOSION HAZARD
Flammable Vapors
FLAMMABLES
WARNING
For continued protection against
risk of fire:
• Do not install water heater on
carpeted floor.
• Do not operate water heater if
flood damaged.
Fire Hazard
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Breathing carbon monoxide can cause brain damage or death.
Always read and understand instruction manual.
•For operation above 3,079
metres (10,100 ft.) a high altitude
orifice must be installed.
•Contact a qualified installer or
service agency.
Breathing Hazard - Carbon Monoxide Gas
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• Do not use water heater with
any gas other than the gas
shown on the rating plate.
• Excessive pressure to gas
control valve can cause serious
injury or death.
• Turn off gas lines during
installation.
• Contact qualified installer or
service agency.
Fire and Explosion Hazard
WARNING
Explosion Hazard
Have a qualified technician make sure that the L.P.
gas operating pressure does not exceed 13" water
column.
Failure to do so can result in death, explosion, or
fire.
WARNING
Printed on 6/26/2019 12:31 PM CT
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