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A20 Glossary of Terms

Circuit Board: Printed circuit board assembly that distributes voltage to selected compo-

nents.

Control Panel: Component that allows user to access functions provided by the circuit

board.

Ammeter: Device which measures electrical current conducted through a wire or

electrical device.

Micro Chip: Chip on circuit board that stores hot tub software.

Flow Switch: Switch that informs circuit board there is sufcient water movement to acti-

vate heater. This switch identies water ow.

Hi-limit Sensor/Disk: Sensor that monitors water temperature inside heater.

Jumper: Device on circuit board that mechanically connects (bridges) two points

together.

Ohmmeter: Device that measures the resistance in ohms (Ω) of a component or tem-

perature sensitive device (e.g. temperature sensor, heater element etc).

CD Ozonator: A device that produces ozone gas by passing air through a corona dis-

charge (high voltage arc) chamber.

2011-2013 J300/J200 Models (with circ pump): Introduce ozone 24 hours a

day until a JETS button is pressed. Both lter cycle and ozone production

is canceled after a JETS button is pressed and then turn back on approxi-

mately 5 minutes after jets turn off.

J-LX/J200 Models: Introduce ozone only during a lter cycle or a heat call.

Pin Assignments: Locations identied by numbers on circuit board.

Pressure Switch: J200 Models Only - Switch that informs circuit board there is sufcient wa-

ter movement to activate heater. This switch identies water pressure.

Sensor Connector: Plug in connector containing the temperature sensor and hi-limit sensor

device connections.

Summer Logic: Deactivates Circulation Pump, CLEARRAY and/or optional ozone genera-

tor when hot tub water reaches 2°F (1°C) above the set temperature. Hot

tub water must be 95°F (35°C) or higher for summer logic to activate.

Temperature Sensor: Sensor that monitors hot tub water temperature.

Transformer: Device that converts primary high voltage AC signal to a secondary low

voltage AC signal.

Voltage Meter: Device that measures AC or DC voltage potentials across components or

from a specic test point to ground.

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