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WARNING
Do not use this appliance if any part has
Ÿ
been under water. Immediately call a
licensed professional to inspect the
appliance and to replace any part of the
control system and any gas control which
has been under water.
Do not use substitute materials. Use only
Ÿ
parts certified for the appliance.
Should overheating occur or the gas
Ÿ
supply fail to shut off, turn off the manual
gas control valve to the appliance.
Do not use an extension cord or an
Ÿ
adapter plug with this appliance.
Any alteration to the appliance or its
Ÿ
controls can be dangerous and will void
the warranty.
Proper venting is required for the safe
Ÿ
operation of this appliance.
Ensure appliance venting is not blocked or
Ÿ
partially blocked.
Ensure that in cases of freezing weather
Ÿ
the water heater and its water lines are
protected to prevent freezing.
CAUTION
BURN HAZARD. Hot exhaust and vent may
Ÿ
cause serious burns. Keep away from the
water heater unit. Keep small children and
animals away from the unit.
Hot water outlet pipes leaving the unit can
Ÿ
be hot to touch. In residential
applications, insulation must be used for
hot water pipes below 36" due to burn risk
to children.
WARNING
This product can expose you to lead, which
is known to the state of California to cause
cancer and birth defects or other
reproductive harm. For more information,
go to www.P65warnings.ca.gov.
2 General Information
2.1 Function Introduction and
Explanation
The unit is a box less gas fast water heater
Ÿ
designed to effectively supply hot water
continuously during proper installation.
Read all installation instructions thoroughly
Ÿ
before installing this product.
If you have any questions or concerns about this
Ÿ
device, please consult the manufacturer or its
local agent.
This water heater can only be installed indoors
Ÿ
for indoor models.
The model description is listed on the nameplate,
Ÿ
which is located on the side panel of the water
heater.
The principle of the water heater is shown
below:
FDG340IN-CS90
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1
Over temperature protection therm
2
Heating device
3
Heat exchanger
4
Burners
5
Outlet temperature probe
6
Hot water
7
Gas
8
Fan module
Anti-freezing Thermostat
9
Computer board
10
Inlet temperature probe
11
12
Gas valves
13
Water flow sensor
14
Cold water
General Information
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