Air Controls; Optional Jacuzzi Audio System; Automatic Filtration Cycles; Standard Filtration/Heating Modes - Jacuzzi J-315 Owner's Manual

9.10 Air Controls

Certain jet systems have their own "toggle" on/off air control.
Each control introduces air into the water lines that supply
specific jet groups. Simply press any air control button Jacuzzi
Logo down to open or press the opposite side of the button to close.
Note: To minimize heat loss, close all air controls (Jacuzzi logos up)
when spa is not in use. Certain jets may not draw air when jets pump 1
is running in low speed; this is considered normal.
9.11 Optional Audio System (J-335/J-345/J-355/J-365 Models Only)
Spas equipped with the optional Jacuzzi audio system offer
enhanced spa enjoyment. These models include an integrat-
ed AM/FM/CD receiver with four high-quality marine speakers
for unsurpassed sound quality and long-life. Refer to section
19.0, (page 43) for complete stereo details.

10.0 Automatic Filtration Cycles

Your new spa includes a 24-hour circulation pump which filters the water
continuously. The circulation pump draws water through the skimmer
bag and one of two filter cartridges to effectively remove small debris
in your spa. Note: the 24-hour circulation pump system also supplies
heated water to the spa when the heater turns on.
The control system activates a programmable "standard" or "economy"
filtration/heating cycle to remove larger debris missed by the 24-hour
circulation pump filtration system. These cycles utilize pump #1 low
speed and the filter cartridge to quickly "skim" the water of large debris
and minimize their "bath-tub ring" effect. Apart from their skimming ben-
efit, each mode also effects the operation of your spa's heater. Refer to
sections 10.1 and 10.2 below for additional information.
10.1 Standard Filtration/Heating Modes (F0 - F3)
Standard filtration/heating modes are typically selected by customers in
cold climates where heat up times are extended due to lower ambient
temperatures. In these modes, the water temperature is regulated by the
set temperature, 24-hour circulation pump, and heater which turns on as
needed. After the programmed set temperature is reached, the heater
turns off and the circulation pump continues to operate 24-hours to filter
and clean your spa (unless in summer logic; see section 13.1, page 34).
10.2 Economy Filtration/Heating Modes (F4 - F6)
Economy filtration/heating modes are typically selected by customers in
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