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The appliance must be isolated from the gas supply
piping system by closing its individual manual
shutoff valve during any pressure tes ng of the gas
supply piping system at test pressures equal to or
less than 1/2 psi (3.5 kPa) (13.84 in W.C.).
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You must follow the installa on instruc ons and
those in Care and Maintenance for adequate
combus on air intake and exhaust.
INFORMATION
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If a water heater is installed in a closed water
supply system, such as one having a backflow
preventer in the cold water supply line, means
shall be provided to control thermal expansion.
Contact the water supplier or local plumbing
inspector on how to control thermal expansion.
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Should overhea ng occur or the gas supply fail to
shut off, turn off the manual gas control valve to
the appliance.
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Keep the air intake loca on free of chemicals such
as chlorine or bleach that produce fumes. These
fumes can damage components and reduce the life
of your appliance.
Jacuzzi Signature Water Heaters J‐S180/J‐S199
Prepare for Installa on
Parts included
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Tankless water heater
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J‐C100 temperature controller (integrated into
indoor models; provided with outdoor models)
Tools needed
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Pipe wrenches (2)
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Adjustable pliers
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Screwdrivers (2)
Tools that might be needed
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Hammer drill with
concrete bits
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Saw
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Threading machine with
heads and oiler
Materials needed
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Soap solu on
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Approved ven ng
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Pressure relief valve
Materials that may be needed
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Heat tape
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Pipe insula on
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Electrical wire and
conduit per local code
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Concrete wall anchors
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Op onal pipe cover
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Op onal temperature
controller
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Wire cu ers
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Gloves
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Safety glasses
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Core drill with diamond
head
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Torch set
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Copper tubing cu er
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Steel pipe cu er
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Teflon tape
(recommended) or pipe
compound
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5/8" ID PVC flexible
tubing
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2 conductor 22 AWG
wire for controller
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Single gang electrical
box
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Wire nuts
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Unions, drain valves,
isola on valves
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