Navien NPE-24AWE, NPE-24SWE, NPE-32SWE, NPE-32AWE User Manual
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These appliances are for use with natural gas or LPG.
(An LPG conversion kit is included with the water
heater.)
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Type: B23-B33-B53-C13-C33-C43-C53-C63-C83
Keep this manual near this water heater for future reference
whenever maintenance or service is required.
Model
NPE-24AWE
NPE-24SWE
NPE-32AWE
NPE-32SWE
User’s
Information
Manual
WARNING
If the information in these instructions is not followed exactly, a fire or explosion may
result, causing property damage or personal injury.
–
Do not store or use petrol or other flammable vapours and liquids in the vicinity of this or
any other appliance.
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WHAT TO DO IF YOU SMELL GAS
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Do not try to light any appliances.
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Do not touch any electrical switch; do not use any phone in your building.
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Immediately call the National Gas Emergency Helpline on (Freephone) 0800 111999 or your gas
supplier from a neighbour’s phone. Follow the instructions received.
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Installation and service must be performed by a Gas Safe registered installer, service
agency or the gas supplier.
Condensing Water Heater
2 Contents
Contents
1. Safety Information 3
2. About the Water Heater 8
2.1 Description of the Water Heater 8
2.2 Parts of the Water Heater 8
2.3 The Front Panel 9
3. Operating the Water Heater 10
3.1 Turning the Water Heater On or Off 10
3.2 Adjusting the Water Temperature 10
3.3 Viewing Basic Information 11
3.4 Resetting the Water Heater 11
4. Troubleshooting 12
4.1 Solving Basic Problems 12
4.2 Understanding Error Codes 13
Safety Information 3
WARNING
If you do not follow these instructions
exactly, a fire or explosion may result
causing property damage or personal
injury.
A. This appliance does not have a pilot.
It is equipped with an ignition device
which automatically lights the burner.
Do not try to light the burner by hand.
B. BEFORE OPERATING smell all around
the appliance area for gas. Be sure to
smell next to the floor because some
gases are heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL GAS
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Do not try to light any appliances.
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Do not touch any electric switch; do
not use any phone in your building.
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Immediately call the National Gas
Emergency Helpline on (Freephone)
0800 111999 or your gas supplier
from a neighbour’s phone. Follow
the instructions received.
C. Do not use this appliance if any part
has been under water. Immediately
call a qualified service technician to
inspect the appliance and to replace
any part of the control system and
any gas control which has been under
water.
The following safety symbols are used in this manual. Read and
follow all safety instructions in this manual precisely to avoid
unsafe operating conditions, fire, explosion, property damage or
personal injury. Keep this manual for future reference.
DANGER
Indicates an imminently hazardous
situation which, if not avoided, could
result in severe injury or death.
WARNING
Indicates a potential hazardous situation
which, if not avoided, may result in injury
or death.
CAUTION
Indicates a potentially hazardous
situation that, if not avoided, could result
in property damage.
1. Safety Information
4 Safety Information
DANGER
HOT
BURN
To prevent burns:
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Use the lowest operating temperature
setting necessary to provide
comfortably-hot water.
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If your household has children or
elderly or disabled residents, consider
using a lower temperature setting.
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Read all the instructions in this
manual carefully before changing the
temperature setting.
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Feel the water before using it on
children, the elderly or the disabled.
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If it is necessary to set the water heater
above 52°C, have a temperaturelimiting valve or mixing valve installed
on the water heater.
WARNING
This appliance can be used by children
aged from 8 years and above and
persons with reduced physical, sensory
or mental capabilities or lack of
experience and knowledge provided
they have been given supervision or
instruction concerning to the use of the
appliance in a safe way and understand
the hazards involved. Children shall not
play with the appliance. Cleaning and
user maintenance shall not be made by
children without supervision.
Safety Information 5
WARNING
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Shut off the gas supply if the water
heater is damaged.
Have your installer or plumber show
you the location of the gas shut
off valve and demonstrate how to
close the valve. If the water heater is
damaged as a result of overheating,
fire, flood or any other reason, close
the manual shut off valve and do not
operate the water heater again until
it has been inspected by a qualified
technician.
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Do not store or use petrol or other
flammable liquids near this water
heater.
Doing so may result in fire or explosion.
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Do not place combustibles, such as
newspapers or laundry, near the
water heater or flue system.
Doing so may result in a fire.
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Do not place or use hair sprays, spray
paints or any other compressed
gases near the water heater or
flue system, including the flue
termination.
Doing so may result in fire or explosion.
DANGER
This water heater is set to 50°C at the
factory for your safety and comfort.
Increasing the temperature increases
the risk of accidental scalding. Water
temperatures at or above 52°C can cause
instant scalding or severe burns. Before
you decide to change the temperature
setting, read the following charts
carefully.
Water
Temperature
Time in which a young child can suffer a
full thickness (3rd degree) burn*
70°C Less than 1 second
60°C 1 second
55°C 10 second
49°C 10 minutes
37°C very low scald risk
Before setting the temperature at or above
52°C, consider installing a thermostaticallycontrolled mixing valve or temperaturelimiting valve. Contact a licensed plumber
or your local plumbing authority for more
information.
6 Safety Information
CAUTION
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Do not attempt to repair or replace
any part of the water heater, unless
it is specifically recommended in this
manual.
For all other service, contact an
authorised technician or licensed
professional. Improper adjustments,
alterations, service, or maintenance
may lead to property damage, personal
injury and will void your warranty.
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Do not operate the water heater if
you feel something is wrong with it.
Doing so may result in product damage
or personal injury.
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Do not allow children to operate or
access the water heater.
Doing so may result in product damage
or personal injury.
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Do not attempt to change the water
temperature while the water heater
is being used.
Doing so may result in personal injury.
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Do not turn on the water heater
unless the water and gas supplies
are fully opened.
Doing so may damage the water
heater.
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Do not turn on the water if the cold
water supply shut-off valve is closed.
Doing so may damage the water
heater.
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Do not use this water heater for
anything other than its intended
purpose, as described in this manual.
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Do not operate the water heater with
the front cover opened.
Doing so may result in fire or carbon
monoxide (CO) poisoning, which may
result in property damage or personal
injury.
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Do not operate this water heater
without proper flue system.
Doing so may result in fire or carbon
monoxide (CO) poisoning, which may
result in property damage or personal
injury. Inspect the flue termination
and air intake supply annually to
ensure proper operation of the water
heater. Turn off and discontinue use
of the water heater if any of the flue
pipes, flue elbows or intake pipes are
damaged in any way, separated at a
joint or show evidence of corrosion,
rusting or melting.
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Do not touch the power cord or
internal components of the water
heater with wet hands.
Doing so may result in electric shock.
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Do not make any electrical
connections before turning off the
electrical power supply at service
entrance panel.
Doing so may result in severe personal
injury.
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