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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 sufficient water movement to acti-
vate heater. This switch identifies water flow.
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 filter 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 filter cycle or a heat call.
Pin Assignments:
Locations identified by numbers on circuit board.
Pressure Switch:
J200 Models Only - Switch that informs circuit board there is sufficient wa-
ter movement to activate heater. This switch identifies water pressure.
Sensor Connector:
Plug in connector containing the temperature sensor and hi-limit sensor
device connections.
Summer Logic:
Deactivates Circulation Pump, CLEAR
RAY
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 specific test point to ground.
